Innovative Cathode Structure for Rechargeable Lithium/Oxygen Battery with Increased Energy Density and Cycle Life
Navy SBIR FY2015.2


Sol No.: Navy SBIR FY2015.2
Topic No.: N152-093
Topic Title: Innovative Cathode Structure for Rechargeable Lithium/Oxygen Battery with Increased Energy Density and Cycle Life
Proposal No.: N152-093-0464
Firm: Giner, Inc.
89 Rumford Avenue
Newton, Massachusetts 2466
Contact: Robert McDonald
Phone: (781) 529-0530
Web Site: http://www.ginerinc.com
Abstract: Giner, Inc. (Giner) proposes to extend lithium/oxygen energy density and cycle life through the use of a highly engineered cathode with a combination of design and lightweight materials to optimize gas diffusion, lithium-ion conduction and product distribution in a microporous / macroporous architecture. The project will scale up and demonstrate cell performance using inexpensive methods and materials. Further improvements will be made by incorporating continuous electrospun carbon fibers to provide uniform, highly dispersed bidirectional catalyst support, electronic continuity and microporous electrolyte entrapment. The structure will be optimized to preserve product deposition sites, ionic conductivity and oxygen access over many cycles. A prototype 28-V battery will be designed, fabricated and tested in the Phase I Option.
Benefits: The proposed lithium/oxygen cell and battery designs will provide lower-cost alternatives to lithium-ion cells with the potential for substantial weight and volume savings.

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