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5V Lithium Ion Rechargeable Battery

Award Information
Agency: Department of Defense
Branch: Army
Contract: W56KGU-22-C-0012
Agency Tracking Number: A21C-T016-0320
Amount: $172,993.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: A21C-T016
Solicitation Number: 21.C
Solicitation Year: 2021
Award Year: 2022
Award Start Date (Proposal Award Date): 2022-04-26
Award End Date (Contract End Date): 2022-10-23
Small Business Information
12345 W. 52nd Ave.
Wheat Ridge, CO 80033-1916
United States
DUNS: 181947730
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Brian Elliott
 (303) 940-2341
Business Contact
 Mr. John D. Wright
Phone: (303) 940-2300
Research Institution
 University of Colorado at Boulder
 Douglas Gin
Engineering Center, ECES 138, Campus Box 124
Boulder, CO 80309-0424
United States

 (303) 492-7640
 Nonprofit College or University

5.0 volt lithium batteries could provide higher power and greater energy density than existing 4.2 volt batteries, but there is currently not a known combination of electrodes and electrolytes that are stable under repeated charge/discharge cycles. Individual components such as the anode, new olivine cathodes and ionic liquid electrolyte are individually stable at these voltages, but they fail at the solid electrolyte interphase (SEI) in a fully assembled cell. If the battery’s SEI could tolerate cycling between 4.6 and 5 volts this would increase the energy density and power. The goal of this project is to develop a 5.0 volt tolerant electrolyte based on the combination of a non-flammable ionic liquid solvent and a novel artificial SEI material, and demonstrate it with existing anode and cathode materials in a full lithium ion battery cell with less than 20% capacity fade after 80 cycles and an energy density of more than 350 Wh/kg to meet the Army’s future battery needs.

* Information listed above is at the time of submission. *

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