Thermally Modulated Solid-State Batteries for Ultra-Safe Fast-Charging Electric Vehicles

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Tucson, Arizona
Project Term:
09/14/2023 - 09/13/2025

Technology Description:

Ampcera will develop an all-climate thermally modulated solid-state battery (TMSSB) incorporating a thermally modulated cell technology (TMCT), developed by partner EC Power. “Heatable” solid-state batteries (SSBs) have the potential to provide disruptively high energy density and enable ultra-safe fast charging in EVs during cold weather, overcoming many of the consumer acceptance barriers hindering widespread adoption. Ampcera’s TMSSB combines a high-capacity silicon anode and a high-voltage, nickel-rich oxide-based cathode to enable a specific energy exceeding 400 Wh/kg. Combining the TMCT with a high ion conducting solid-state electrolyte will enable rapid charging at ambient conditions. The TMCT also enables cold startup times of less than one minute at ambient temperatures of -20°C, making the TMSSB advantageous in cold climates.

Potential Impact:

EVs4ALL’s primary objective is to increase the domestic adoption of new and used EVs by enabling safe, resilient, fast-charging batteries with improved performance at low temperatures.


Solutions will target the use of “noncritical” battery materials, while minimizing the use of cobalt and nickel. A reduced dependence on the importation of critical metals supports U.S. energy independence.


80% adoption of EVs in the U.S. could reduce overall CO2 emissions by 800 million tons/year.


80% adoption of EVs in the U.S. could reduce annual energy consumption by 4 quadrillion British Thermal Units.


ARPA-E Program Director:
Dr. Halle Cheeseman
Project Contact:
Dr. Brown Emery
Press and General Inquiries Email:
Project Contact Email:


EC Power Group, Inc.
Ford Motor Company

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