Advances in electrode materials for AMTEC
An improved electrode for the Alkali Metal Thermal to Electric Converter (AMTEC) has been made and tested.
AMTEC↗
SEARCH · Engineering Papers
Results for “electrode”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Performance Parameters of TiN Electrodes for AMTEC Cells
The results of several experiments in which TiN electrodes have been studied at 1120-1200 K are described here.
AMTEC↗
Vacuum microelectronics and miniature instruments based on application specific electrode-integrated nanotube cathodes (ASINCs)
JPL has developed high performance cold cathodes using arrays of carbon nanotube bundles thay routinely produce > 15 A/cm2 at 5 to 8 V/μm applied fields for extreme environment vacuum electronics and miniature instrumentation. These cathodes have been monolithically integrated with additional electrodes using double siliconon-insulator process.
Mojarradi, M.M.↗
Battery cell and n situ battery electrode analysis method
Battery cells are provided that can include: a housing defining a chamber having a fluid inlet and outlet; an anode at one side of the housing; a cathode at another side of the housing opposing and spaced apart from the anode a sufficient amount to allow for electrolyte between the anode and cathode; and the other side of the chamber defined by an ion permeable member. Methods for in situ battery electrode analysis are provided and these methods can include: providing a battery cell having an anode and a cathode; exposing the battery cell to an ion beam while the battery cell is operational to form secondary ions; and detecting the secondary ions to analyze the battery.
25 ENERGY STORAGE↗
Layered-spinel electrodes for lithium batteries
An electrode for a lithium-ion cell comprising a ‘layered-spinel’ composite oxide material is disclosed. The ‘layered-spinel’ can be a material of formula xLiMO2.(1−x)LiyM′zO4, wherein 0 < x < 1; LiMO2 is a lithium metal oxide having a layered structure in which M comprises one or more transition metals and optionally lithium, and has a combined average oxidation state of +3; and LiyM′zO4 is a lithium metal oxide having a spinel structure, 1≤y≤1.33, 1.66≤z≤2, and M′ comprises one or more transition metals, and has a combined average metal oxidation state in the range of about +3.5 to about +4.
25 ENERGY STORAGE↗
Devices and methods for removing dissolved ions from water using composite resin electrodes
The present disclosure provides a device comprising or configured to comprise composite resin electrodes. Further provided are methods of using the device for selectively removing dissolved ions from water.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Membrane electrode assembly and method of making the same
Disclosed herein is a method of manufacturing a membrane electrode assembly (MEA) including directly depositing a liquid suspension containing a platinum precursor onto an ionically conductive membrane (e.g., proton-exchange membrane) that, when the platinum precursor deposit layer is reduced, provides a layer that will scavenge hydrogen that has diffused back through the membrane due to cell stack pressure differential.
08 HYDROGEN↗
In-situ x-ray scatter imaging of battery electrodes
A method and apparatus for in-situ x-ray scatter imaging of battery electrodes. An apparatus includes an X-ray source, a grid, the grid comprising stainless steel wires with uniform spacing, and a cell, the X-ray source directing a beam of energy through the metal grid and components of the cell, the cell blurring a previously sharp projection of grid wires on an image detector. A method includes providing a Spatial Frequency Heterodyne Imaging system, providing a grid, providing a cell, generating X-rays from the Spatial Frequency Heterodyne Imaging system that pass through components of the cell and the grid, and detecting a scatter image from the X-rays.
Rose-Petruck, Christoph↗
Solid-state laminate electrode assembly fabrication and making thin extruded lithium metal foils
Methods for making solid-state laminate electrode assemblies include methods to prevent devitrifying and damaging a lithium ion conducting sulfide glass substrate during thermal evaporation of lithium metal, as well as methods for making thin extruded lithium metal foils.
Visco, Steven J.↗
Treating sulfide glass surfaces and making solid state laminate electrode assemblies
Methods for making solid-state laminate electrode assemblies include methods of forming a solid electrolyte interphase (SEI) by ion implanting nitrogen and/or phosphorous into the glass surface by ion implantation.
Visco, Steven J.↗
Large-volume-change lithium battery electrodes
A battery electrode material includes: 1) primary particles formed of an electrochemically active material; and 2) a secondary particle defining multiple, discrete internal volumes, wherein the primary particles are disposed within respective ones of the internal volumes.
Cui, Yi↗
Graphite-containing electrode and method related thereto
A graphite-containing electrode includes a porous body that has a plurality of first graphite-containing elements and a plurality of second graphite-containing elements intermingled with the first graphite-containing elements. The first graphite-containing elements have a first degree of graphitization and the second graphite-containing elements have a second, different degree of graphitization.
Darling, Robert Mason↗
High-resolution in situ electrochemical NMR with interdigitated electrodes
A system for carrying out electrochemical nuclear magnetic resonance spectroscopy (EC-NMR) is disclosed, along with methods of manufacturing the EC-NMR system, and methods of using the EC-NMR system to monitor electrochemical reactions. The system comprises interdigitated electrodes arranged in a cylindrically symmetric manner. The system allows for nuclear magnetic resonance spectroscopy to be carried out on a sample during electrolysis with minimal effect to its sensitivity.
Tong, YuYe J.↗
Semi-solid electrodes having high rate capability
Embodiments described herein relate generally to electrochemical cells having high rate capability, and more particularly to devices, systems and methods of producing high capacity and high rate capability batteries having relatively thick semi-solid electrodes. In some embodiments, an electrochemical cell includes an anode and a semi-solid cathode. The semi-solid cathode includes a suspension of an active material of about 35% to about 75% by volume of an active material and about 0.5% to about 8% by volume of a conductive material in a non-aqueous liquid electrolyte. An ion-permeable membrane is disposed between the anode and the semi-solid cathode. The semi-solid cathode has a thickness of about 250 μm to about 2,000 μm, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm2 at a C-rate of C/4. In some embodiments, the semi-solid cathode slurry has a mixing index of at least about 0.9.
Chiang, Yet-Ming↗
Ceramic/polymer matrix for electrode protection in electrochemical cells, including rechargeable lithium batteries
Articles and methods for forming ceramic/polymer composite structures for electrode protection in electrochemical cells, including rechargeable lithium batteries, are presented.
Laramie, Michael G.↗
Nanostructured lithium-ion battery electrode composite materials via conformal graphene dispersion
Composites comprising anode and cathode active materials conformally coupled to few-layered graphene, corresponding electrodes and related methods of preparation.
Hersam, Mark C.↗
Gamma Radiolysis of FTO and nITO Electrodes (Group Meeting 03-09-2022)
Examining the effects of direct and indirect gamma radiolysis of transparent conducting oxide electrodes. Specifically, changes in the band gap of these materials as a function of dose and time are examined.
36 MATERIALS SCIENCE↗
Lithium metal electrodes and batteries thereof
The present disclosure is generally related to separators for use in lithium metal batteries, and associated systems and products. Certain embodiments are related to separators that form or are repaired when an electrode is held at a voltage. In some embodiments, an electrochemical cell may comprise an electrolyte that comprises a precursor for the separator.
Chiang, Yet-Ming↗