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Center Innovation Fund: GRC CIF

3D Solid State Battery

Completed Technology Project
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Project Description

3D Solid State Battery

Current Lithium ion battery(LIB) technology is based on intercalation materials and corrosive/ flammable liquid electrolytes. LIBs exhibit safety issues related to liquid electrolyte, where flammability/explosion are concerns when thermally or electrically abused. However, LIB is the best- performing rechargeable battery technology to date exhibiting a high energy density of ~250 Wh/kg at the cell level. Research has pursued incremental improvements to intercalation materials (higher capacity, higher voltage or faster charging) to improve performance, reduce cost and/or improved safety. The maximum energy density of ~350 Wh/Kg is the most probable upper limit for Li intercalation chemistries (with one Li+). LIBs based on intercalation electrodes will not meet NASA's demand for higher energy density for future missions. Also, a safety paradigm exists where high energy density does not correlate with safety. Successful development of a high energy density battery requires not only suitable materials, but also architecture capable of storing large amounts of energy in a reliable and safe matter. Beyond-lithium-ion battery(BLIB) embraces new storage concepts, architectures and materials to achieve higher energy densities >400 Wh/Kg. BLIB does not imply a Li-free chemistry, the low anode potential and mass are extremely attractive. BLIB needs to be a transformative technology to meet aggressive energy and mass requirements for future applications. The goal is to advance solid state battery technology with non-intercalation (conversion) electrodes to enhance energy density and mitigate safety by using solid state electrolyte(SSE) technology. Although still in its infancy relative to liquid-based batteries, solid-state batteries provide a pathway to achieve NASA's energy storage and safety goals. The goal is to advance Lithium-Sulfur(Li-S) technology using SSE approach.

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Primary U.S. Work Locations and Key Partners

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