All Solid State Batteries Enabled by Multifunctional Electrolyte Materials

Technical Report · Fri Dec 30 04:00:00 EST 2022

DOI:https://doi.org/10.2172/1906484· OSTI ID:1906484

Zhang, Pu ^[1]

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1. Solid Power Operating, Inc., Louisville, CO (United States); Solid Power Operating, Inc.

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.

• Research Organization: Solid Power Operating, Inc., Louisville, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)
• DOE Contract Number: EE0008861
• OSTI ID: 1906484
• Report Number(s): DE-EE0008861
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
33 ADVANCED PROPULSION SYSTEMS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY