Low-Cost, High Areal Capacity, Anode-Free Sodium-Metal Batteries Enabled by Solid Electrolytes

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Program:
EVs4ALL
Award:
$3,198,085
Location:
Cambridge, Massachusetts
Status:
ACTIVE
Project Term:
05/25/2023 - 05/24/2026
Website:

Technology Description:

24M Technologies will develop low-cost and fast-charging sodium metal EV batteries with good low-temperature performance. 24M’s cell design will incorporate (1) its ultra-thick SemiSolid cathode made up of cobalt-free and nickel-free sodium-based active materials, (2) a wide-temperature, fast-charging electrolyte developed using machine learning and automated high-throughput screening technology, and (3) a solid-state electrolyte-based separator to enable a high-energy density, anode-free configuration. The SemiSolid electrode architecture has been commercially demonstrated with exceptionally high energy density using lithium-ion chemistry. Applying it to sodium-ion chemistry with relatively higher conductivities and high mechanical strength NASICON solid-state film will pave the way for improved low-temperature performance retentions, fast-charging, high-energy density, and reduced cost.

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.

Security:

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.

Environment:

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

Economy:

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

Contact

ARPA-E Program Director:
Dr. Halle Cheeseman
Project Contact:
Dr. Junzheng Chen
Press and General Inquiries Email:
ARPA-E-Comms@hq.doe.gov
Project Contact Email:
jchen@24-m.com

Partners

Massachusetts Institute of Technology
Carnegie Mellon University

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Release Date:
05/03/2022