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DOE OSTI2020

Materials Data on Li2CuSiO4 by Materials Project

Li2CuSiO4 is Stannite structured and crystallizes in the tetragonal I-42m space group. The structure is three-dimensional. Li1+ is bonded to four equivalent O2- atoms to form LiO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra, corners with four equivalent CuO4 tetrahedra, and corners with four equivalent SiO4 tetrahedra. All Li–O bond lengths are 1.98 Å. Cu2+ is bonded to four equivalent O2- atoms to form CuO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra and corners with eight equivalent LiO4 tetrahedra. All Cu–O bond lengths are 2.00 Å. Si4+ is bonded to four equivalent O2- atoms to form SiO4 tetrahedra that share corners with four equivalent CuO4 tetrahedra and corners with eight equivalent LiO4 tetrahedra. All Si–O bond lengths are 1.65 Å. O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2CuSiO4 by Materials Project

Li2CuSiO4 is Stannite-like structured and crystallizes in the orthorhombic Pmn2_1 space group. The structure is three-dimensional. Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra, corners with four equivalent CuO4 tetrahedra, and corners with four equivalent SiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.95–2.00 Å. Cu2+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra and corners with eight equivalent LiO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.96–2.05 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent CuO4 tetrahedra and corners with eight equivalent LiO4 tetrahedra. There is three shorter (1.65 Å) and one longer (1.66 Å) Si–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the second O2- site, O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the third O2- site, O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form distorted corner-sharing OLi2CuSi tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2CuSiO4 by Materials Project

Li2CuSiO4 is beta beryllia-derived structured and crystallizes in the orthorhombic C222_1 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form distorted LiO4 tetrahedra that share corners with two equivalent SiO4 tetrahedra, corners with four equivalent LiO4 tetrahedra, corners with four equivalent CuO4 tetrahedra, and an edgeedge with one SiO4 tetrahedra. There are two shorter (1.98 Å) and two longer (2.05 Å) Li–O bond lengths. In the second Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with two equivalent CuO4 tetrahedra, corners with four equivalent LiO4 tetrahedra, corners with four equivalent SiO4 tetrahedra, and an edgeedge with one CuO4 tetrahedra. There is two shorter (1.96 Å) and two longer (2.01 Å) Li–O bond length. Cu2+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra, corners with six LiO4 tetrahedra, and an edgeedge with one LiO4 tetrahedra. There is two shorter (1.95 Å) and two longer (2.02 Å) Cu–O bond length. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent CuO4 tetrahedra, corners with six LiO4 tetrahedra, and an edgeedge with one LiO4 tetrahedra. All Si–O bond lengths are 1.65 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form a mixture of distorted edge and corner-sharing OLi2CuSi tetrahedra. In the second O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form a mixture of edge and corner-sharing OLi2CuSi tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiCuSi2O5 by Materials Project

LiCuSi2O5 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. Li1+ is bonded to four O2- atoms to form distorted LiO4 tetrahedra that share corners with six SiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 2.02–2.21 Å. Cu1+ is bonded in a 2-coordinate geometry to two O2- atoms. There is one shorter (1.92 Å) and one longer (1.93 Å) Cu–O bond length. There are two inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three SiO4 tetrahedra and corners with four equivalent LiO4 tetrahedra. There is one shorter (1.61 Å) and three longer (1.66 Å) Si–O bond length. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with two equivalent LiO4 tetrahedra and corners with three SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.69 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Cu1+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Cu1+, and one Si4+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two Si4+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Li1+ and two equivalent Si4+ atoms. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Si4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li4CuSi2O7 by Materials Project

Li4CuSi2O7 is Stannite-like structured and crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share a cornercorner with one CuO4 tetrahedra, corners with five equivalent SiO4 tetrahedra, and corners with six LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.92–2.15 Å. In the second Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with three equivalent CuO4 tetrahedra, corners with four equivalent SiO4 tetrahedra, and corners with five LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.94–2.05 Å. Cu2+ is bonded to four O2- atoms to form distorted CuO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra and corners with eight LiO4 tetrahedra. There is two shorter (1.98 Å) and two longer (1.99 Å) Cu–O bond length. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one SiO4 tetrahedra, corners with two equivalent CuO4 tetrahedra, and corners with nine LiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.72 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the second O2- site, O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the third O2- site, O2- is bonded to three Li1+ and one Si4+ atom to form corner-sharing OLi3Si tetrahedra. In the fourth O2- site, O2- is bonded to two equivalent Li1+ and two equivalent Si4+ atoms to form corner-sharing OLi2Si2 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li10Cu(SiO5)2 by Materials Project

Li10Cu(SiO5)2 is Aluminum carbonitride-derived structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are seven inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 1.98–2.69 Å. In the second Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 1.96–2.50 Å. In the third Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.91–2.46 Å. In the fourth Li1+ site, Li1+ is bonded to four O2- atoms to form distorted LiO4 tetrahedra that share corners with two equivalent LiO5 square pyramids, a cornercorner with one SiO4 tetrahedra, corners with three LiO4 tetrahedra, an edgeedge with one LiO4 tetrahedra, and an edgeedge with one SiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.91–2.06 Å. In the fifth Li1+ site, Li1+ is bonded to five O2- atoms to form distorted LiO5 square pyramids that share corners with three equivalent SiO4 tetrahedra, corners with seven LiO4 tetrahedra, an edgeedge with one SiO4 tetrahedra, and edges with three LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 2.10–2.34 Å. In the sixth Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share a cornercorner with one LiO5 square pyramid, corners with three LiO4 tetrahedra, corners with four SiO4 tetrahedra, an edgeedge with one LiO5 square pyramid, and edges with two LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.87–2.03 Å. In the seventh Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share a cornercorner with one LiO5 square pyramid, corners with four LiO4 tetrahedra, corners with four equivalent SiO4 tetrahedra, an edgeedge with one LiO5 square pyramid, and edges with two equivalent LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.95–2.07 Å. Cu2+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is one shorter (1.83 Å) and two longer (1.91 Å) Cu–O bond length. There are two inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with two equivalent LiO4 tetrahedra, an edgeedge with one LiO5 square pyramid, and edges with two equivalent LiO4 tetrahedra. There is three shorter (1.65 Å) and one longer (1.66 Å) Si–O bond length. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three equivalent LiO5 square pyramids and corners with twelve LiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.65–1.68 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 6-coordinate geometry to four Li1+ and two equivalent Cu2+ atoms. In the second O2- site, O2- is bonded to four Li1+ and one Si4+ atom to form OLi4Si trigonal bipyramids that share corners with two equivalent OLi5Cu octahedra and an edgeedge with one OLi4Si trigonal bipyramid. The corner-sharing octahedral tilt angles are 28°. In the third O2- site, O2- is bonded to five Li1+ and one Cu2+ atom to form distorted corner-sharing OLi5Cu octahedra. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to five Li1+ and one Si4+ atom. In the fifth O2- site, O2- is bonded in a 6-coordinate geometry to five Li1+ and one Si4+ atom. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to four Li1+ and one Si4+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to four Li1+ and one Si4+ atom. In the eighth O2- site, O2- is bonded in a 5-coordinate geometry to four Li1+ and one Si4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2Cu2Si8O19 by Materials Project

Li2Cu2Si8O19 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 3-coordinate geometry to three O2- atoms. There are two shorter (2.11 Å) and one longer (2.19 Å) Li–O bond lengths. In the second Li1+ site, Li1+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Li–O bond distances ranging from 2.05–2.17 Å. There are two inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded to four O2- atoms to form CuO4 trigonal pyramids that share corners with four SiO4 tetrahedra and corners with two equivalent CuO4 trigonal pyramids. There are a spread of Cu–O bond distances ranging from 1.94–2.03 Å. In the second Cu2+ site, Cu2+ is bonded to four O2- atoms to form CuO4 trigonal pyramids that share corners with four SiO4 tetrahedra and corners with two equivalent CuO4 trigonal pyramids. There are a spread of Cu–O bond distances ranging from 1.93–2.04 Å. There are eight inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form corner-sharing SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.64 Å. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form corner-sharing SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.64 Å. In the third Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with two SiO4 tetrahedra and corners with three CuO4 trigonal pyramids. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. In the fourth Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three SiO4 tetrahedra and a cornercorner with one CuO4 trigonal pyramid. There is one shorter (1.62 Å) and three longer (1.65 Å) Si–O bond length. In the fifth Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three SiO4 tetrahedra and a cornercorner with one CuO4 trigonal pyramid. There are a spread of Si–O bond distances ranging from 1.62–1.65 Å. In the sixth Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with two SiO4 tetrahedra and corners with three CuO4 trigonal pyramids. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. In the seventh Si4+ site, Si4+ is bonded to four O2- atoms to form corner-sharing SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.61–1.64 Å. In the eighth Si4+ site, Si4+ is bonded to four O2- atoms to form corner-sharing SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.64 Å. There are nineteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Si4+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+ and two Si4+ atoms. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cu2+ and one Si4+ atom. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Cu2+ and one Si4+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Cu2+, and one Si4+ atom. In the eighth O2- site, O2- is bonded in a linear geometry to two Si4+ atoms. In the ninth O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the tenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Si4+ atoms. In the eleventh O2- site, O2- is bonded in a linear geometry to two Si4+ atoms. In the twelfth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Cu2+, and one Si4+ atom. In the thirteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Cu2+ and one Si4+ atom. In the fourteenth O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the fifteenth O2- site, O2- is bonded in a 2-coordinate geometry to one Cu2+ and one Si4+ atom. In the sixteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+ and two Si4+ atoms. In the seventeenth O2- site, O2- is bonded in a distorted tetrahedral geometry to two Li1+ and two Si4+ atoms. In the eighteenth O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the nineteenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Si4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2Cu(Si2O5)2 by Materials Project

Li2Cu(Si2O5)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.07–2.61 Å. In the second Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 1.98–2.71 Å. Cu2+ is bonded to five O2- atoms to form CuO5 square pyramids that share corners with five SiO4 tetrahedra and an edgeedge with one CuO5 square pyramid. There are a spread of Cu–O bond distances ranging from 1.97–2.45 Å. There are four inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one CuO5 square pyramid and corners with three SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.60–1.68 Å. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with two equivalent CuO5 square pyramids and corners with three SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.61–1.66 Å. In the third Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one CuO5 square pyramid and corners with three SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.61–1.67 Å. In the fourth Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one CuO5 square pyramid and corners with three SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.60–1.67 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two Si4+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Li1+ and two Si4+ atoms. In the fourth O2- site, O2- is bonded to two equivalent Li1+ and two Si4+ atoms to form distorted edge-sharing OLi2Si2 trigonal pyramids. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Li1+ and two Si4+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two Si4+ atoms. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two equivalent Cu2+, and one Si4+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Cu2+, and one Si4+ atom. In the ninth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Li1+, one Cu2+, and one Si4+ atom. In the tenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Li1+, one Cu2+, and one Si4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2Cu2Si5O13 by Materials Project

Li2Cu2Si5O13 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 3-coordinate geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.89–2.52 Å. In the second Li1+ site, Li1+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.88–2.12 Å. There are two inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.93–2.07 Å. In the second Cu2+ site, Cu2+ is bonded to five O2- atoms to form distorted CuO5 trigonal bipyramids that share corners with five SiO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 2.00–2.59 Å. There are five inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three SiO4 tetrahedra and a cornercorner with one CuO5 trigonal bipyramid. There are a spread of Si–O bond distances ranging from 1.62–1.66 Å. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form corner-sharing SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. In the third Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with two SiO4 tetrahedra and corners with two equivalent CuO5 trigonal bipyramids. There are a spread of Si–O bond distances ranging from 1.62–1.67 Å. In the fourth Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three SiO4 tetrahedra and a cornercorner with one CuO5 trigonal bipyramid. There are a spread of Si–O bond distances ranging from 1.62–1.68 Å. In the fifth Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three SiO4 tetrahedra and a cornercorner with one CuO5 trigonal bipyramid. There are a spread of Si–O bond distances ranging from 1.61–1.66 Å. There are thirteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal pyramidal geometry to two Li1+, one Cu2+, and one Si4+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two Cu2+ and one Si4+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to two Si4+ atoms. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two Si4+ atoms. In the sixth O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to two Cu2+ and one Si4+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Cu2+, and one Si4+ atom. In the ninth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Si4+ atoms. In the tenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two Li1+, one Cu2+, and one Si4+ atom. In the eleventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Si4+ atoms. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two Cu2+, and one Si4+ atom. In the thirteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two Si4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li4Cu2Si3O10 by Materials Project

Li4Cu2Si3O10 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra, corners with three equivalent CuO5 trigonal bipyramids, an edgeedge with one LiO4 tetrahedra, and an edgeedge with one CuO5 trigonal bipyramid. There are a spread of Li–O bond distances ranging from 1.89–2.10 Å. In the second Li1+ site, Li1+ is bonded in a distorted pentagonal planar geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 2.05–2.46 Å. Cu2+ is bonded to five O2- atoms to form CuO5 trigonal bipyramids that share corners with three equivalent LiO4 tetrahedra, corners with five SiO4 tetrahedra, an edgeedge with one LiO4 tetrahedra, and an edgeedge with one CuO5 trigonal bipyramid. There are a spread of Cu–O bond distances ranging from 1.99–2.31 Å. There are two inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one SiO4 tetrahedra, corners with four equivalent LiO4 tetrahedra, and corners with four equivalent CuO5 trigonal bipyramids. There are a spread of Si–O bond distances ranging from 1.61–1.68 Å. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with two equivalent SiO4 tetrahedra and corners with two equivalent CuO5 trigonal bipyramids. There is two shorter (1.62 Å) and two longer (1.65 Å) Si–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form a mixture of distorted edge and corner-sharing OLi2CuSi trigonal pyramids. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Li1+, one Cu2+, and one Si4+ atom. In the third O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form a mixture of distorted edge and corner-sharing OLi2CuSi tetrahedra. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Li1+ and two Si4+ atoms. In the fifth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, two equivalent Cu2+, and one Si4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2Cu(SiO3)2 by Materials Project

Li2Cu(SiO3)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There are a spread of Li–O bond distances ranging from 1.76–1.99 Å. In the second Li1+ site, Li1+ is bonded in a 1-coordinate geometry to three O2- atoms. There are a spread of Li–O bond distances ranging from 1.65–2.13 Å. In the third Li1+ site, Li1+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There are a spread of Li–O bond distances ranging from 1.76–2.00 Å. In the fourth Li1+ site, Li1+ is bonded in a 1-coordinate geometry to three O2- atoms. There are a spread of Li–O bond distances ranging from 1.66–2.13 Å. There are two inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Cu–O bond distances ranging from 1.65–1.94 Å. In the second Cu2+ site, Cu2+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Cu–O bond distances ranging from 1.65–1.94 Å. There are four inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded in a 3-coordinate geometry to four O2- atoms. There are a spread of Si–O bond distances ranging from 1.59–2.24 Å. In the second Si4+ site, Si4+ is bonded in a 1-coordinate geometry to four O2- atoms. There are a spread of Si–O bond distances ranging from 1.20–2.24 Å. In the third Si4+ site, Si4+ is bonded in a 3-coordinate geometry to four O2- atoms. There are a spread of Si–O bond distances ranging from 1.60–2.26 Å. In the fourth Si4+ site, Si4+ is bonded in a 1-coordinate geometry to four O2- atoms. There are a spread of Si–O bond distances ranging from 1.20–2.25 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Cu2+ and one Si4+ atom. In the second O2- site, O2- is bonded in a distorted T-shaped geometry to two Li1+ and one Si4+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two Si4+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+ and two Si4+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Cu2+, and one Si4+ atom. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cu2+, and one Si4+ atom. In the seventh O2- site, O2- is bonded in a distorted water-like geometry to one Cu2+ and one Si4+ atom. In the eighth O2- site, O2- is bonded in a distorted T-shaped geometry to two Li1+ and one Si4+ atom. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to two Si4+ atoms. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+ and two Si4+ atoms. In the eleventh O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Cu2+, and one Si4+ atom. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Cu2+, and one Si4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2Cu2(Si2O5)3 by Materials Project

Li2Cu2(Si2O5)3 crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in an L-shaped geometry to two equivalent O2- atoms. Both Li–O bond lengths are 1.92 Å. In the second Li1+ site, Li1+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Li–O bond distances ranging from 2.25–2.59 Å. There are two inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There is two shorter (1.95 Å) and two longer (1.99 Å) Cu–O bond length. In the second Cu2+ site, Cu2+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six SiO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 2.04–2.13 Å. There are three inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one CuO6 octahedra and corners with three SiO4 tetrahedra. The corner-sharing octahedral tilt angles are 41°. There are a spread of Si–O bond distances ranging from 1.61–1.65 Å. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one CuO6 octahedra and corners with three SiO4 tetrahedra. The corner-sharing octahedral tilt angles are 46°. There are a spread of Si–O bond distances ranging from 1.60–1.66 Å. In the third Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share a cornercorner with one CuO6 octahedra and corners with three SiO4 tetrahedra. The corner-sharing octahedral tilt angles are 47°. There are a spread of Si–O bond distances ranging from 1.61–1.65 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Li1+ and two equivalent Si4+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Li1+ and two equivalent Si4+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+ and two equivalent Si4+ atoms. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to two Cu2+ and one Si4+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to two Cu2+ and one Si4+ atom. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Cu2+, and one Si4+ atom. In the ninth O2- site, O2- is bonded in a bent 150 degrees geometry to two Si4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2CuSiO4 by Materials Project

Li2CuSiO4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with two equivalent CuO4 tetrahedra, corners with four equivalent LiO4 tetrahedra, corners with four equivalent SiO4 tetrahedra, and an edgeedge with one CuO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.93–2.05 Å. Cu2+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra, corners with four equivalent SiO4 tetrahedra, and edges with two equivalent LiO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.94–2.06 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent CuO4 tetrahedra and corners with eight equivalent LiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.64–1.66 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form a mixture of distorted edge and corner-sharing OLi2CuSi tetrahedra. In the second O2- site, O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form distorted corner-sharing OLi2CuSi tetrahedra. In the third O2- site, O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form a mixture of distorted edge and corner-sharing OLi2CuSi trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2CuSiO4 by Materials Project

Li2CuSiO4 is beta beryllia-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with two equivalent CuO4 tetrahedra, corners with four equivalent LiO4 tetrahedra, corners with four equivalent SiO4 tetrahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.96–2.03 Å. In the second Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra, corners with four equivalent CuO4 tetrahedra, and corners with four equivalent SiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.94–2.17 Å. Cu2+ is bonded to four O2- atoms to form distorted CuO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra, corners with six LiO4 tetrahedra, and an edgeedge with one CuO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.91–2.19 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent CuO4 tetrahedra and corners with eight LiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.68 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to three Li1+ and one Si4+ atom to form distorted OLi3Si tetrahedra that share corners with eight OLi2CuSi tetrahedra and an edgeedge with one OLi3Si tetrahedra. In the second O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the third O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the fourth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, two equivalent Cu2+, and one Si4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2CuSiO4 by Materials Project

Li2CuSiO4 is beta beryllia-derived structured and crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with two equivalent CuO4 tetrahedra, corners with four equivalent LiO4 tetrahedra, corners with four equivalent SiO4 tetrahedra, and an edgeedge with one CuO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.97–2.02 Å. In the second Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra, corners with four equivalent CuO4 tetrahedra, and corners with four equivalent SiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.96–2.04 Å. Cu2+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra, corners with six LiO4 tetrahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.95–2.08 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent CuO4 tetrahedra and corners with eight LiO4 tetrahedra. There is three shorter (1.65 Å) and one longer (1.66 Å) Si–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form a mixture of distorted corner and edge-sharing OLi2CuSi trigonal pyramids. In the second O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form a mixture of distorted corner and edge-sharing OLi2CuSi tetrahedra. In the third O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the fourth O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2CuSiO4 by Materials Project

Li2CuSiO4 is Stannite-like structured and crystallizes in the monoclinic Pc space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra, corners with four equivalent CuO4 tetrahedra, and corners with four equivalent SiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.93–2.03 Å. In the second Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra, corners with four equivalent CuO4 tetrahedra, and corners with four equivalent SiO4 tetrahedra. There is one shorter (1.97 Å) and three longer (2.01 Å) Li–O bond length. Cu2+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra and corners with eight LiO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.95–2.00 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent CuO4 tetrahedra and corners with eight LiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.63–1.66 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the second O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form distorted corner-sharing OLi2CuSi tetrahedra. In the third O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the fourth O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2CuSiO4 by Materials Project

Li2CuSiO4 is Stannite-like structured and crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra, corners with four equivalent CuO4 tetrahedra, and corners with four equivalent SiO4 tetrahedra. There is two shorter (1.96 Å) and two longer (2.02 Å) Li–O bond length. In the second Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra, corners with four equivalent CuO4 tetrahedra, and corners with four equivalent SiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.95–2.03 Å. Cu2+ is bonded to four O2- atoms to form CuO4 tetrahedra that share corners with four equivalent SiO4 tetrahedra and corners with eight LiO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.95–2.06 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four equivalent CuO4 tetrahedra and corners with eight LiO4 tetrahedra. There is three shorter (1.65 Å) and one longer (1.66 Å) Si–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the second O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form distorted corner-sharing OLi2CuSi tetrahedra. In the third O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra. In the fourth O2- site, O2- is bonded to two Li1+, one Cu2+, and one Si4+ atom to form corner-sharing OLi2CuSi tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2CuSiO4 by Materials Project

Li2CuSiO4 crystallizes in the trigonal P3_121 space group. The structure is three-dimensional. Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra and corners with four equivalent SiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.96–2.02 Å. Cu2+ is bonded in a distorted square co-planar geometry to four O2- atoms. There is two shorter (1.95 Å) and two longer (2.00 Å) Cu–O bond length. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with eight equivalent LiO4 tetrahedra. All Si–O bond lengths are 1.65 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form a mixture of distorted edge and corner-sharing OLi2CuSi tetrahedra. In the second O2- site, O2- is bonded to two equivalent Li1+, one Cu2+, and one Si4+ atom to form a mixture of distorted edge and corner-sharing OLi2CuSi tetrahedra.

36 MATERIALS SCIENCE↗