Advanced Lithium Sulfur Battery

Award Information
Agency: Department of Defense
Branch: Army
Contract: W56KGU-18-C-0003
Agency Tracking Number: A2-7498
Amount: $621,789.82
Phase: Phase II
Program: SBIR
Solicitation Topic Code: A17-050
Solicitation Number: 2018.1
Timeline
Solicitation Year: 2018
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-03-17
Award End Date (Contract End Date): 2020-03-16
Small Business Information
510 Earl Boulevard, Miamisburg, OH, 45342
DUNS: 130020209
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr. Brian Henslee
 (937) 320-1877
 hensleeb@crgrp.com
Business Contact
 Mr. Christopher Hemmelgarn
Phone: (937) 320-1877
Email: contracts@crgrp.com
Research Institution
N/A
Abstract
As tactical and deployed electrical power demands increase for soldiers, there is a commensurate need to increase the energy density of military batteries (i.e. man portable power) to ease the weight burden additional power capacity entails. Lithium-sulfur batteries, as replacement for current lithium ion batteries, are a promising advancement with theoretical specific energy of 2600 Wh/kg. With the specific energy potential of the Li-S chemistry, implementation in a variety of standard configurations could significantly reduce battery and/or pack weight and size. However, Li-S batteries still require maturation to harness their potential. The most significant issues affecting Li-S batteries are related to the dissolution of sulfur in the cathode and migration of lithium polysulfides in organic liquid electrolyte used in the cell, resulting in reduced sulfur utilization and capacity fading over time/cycling. The proposed work seeks to develop and mature cathode materials for polysulfide blocking that address these challenges to enable high specific energy Li-S cells.

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

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