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DOE OSTI · 1906484

All Solid State Batteries Enabled by Multifunctional Electrolyte Materials

Zhang, Pu
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Abstract

Solid Power has teamed with University of California San Diego to develop a high energy, long life, low cost, and safe all-solid-state-battery (ASSB). The battery is enabled by a multifunctional solid state electrolyte (SSE). The project enables scalable production of large format solid state batteries required by the vehicle market and building domestic battery manufacturers as leaders in the global vehicle ASSB production. In the project, the multifunctional SSE materials have been developed and optimized with ionic conductivity ≥ 5 mS/cm and electrochemical stability 0 – 4.5V. SSE separator films have been coated by using a roll-to-roll process with thickness ≤ 40 µm. All-solid-state NMC-Li pouch cells containing the developed SSE have been assembled. A cycle life of > 750 at 100% DOD and 45 °C has been demonstrated in a full pouch cell.

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25 ENERGY STORAGE33 ADVANCED PROPULSION SYSTEMS37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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Zhang, Pu. 2022-12-30. All Solid State Batteries Enabled by Multifunctional Electrolyte Materials. https://doi.org/10.2172/1906484

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