Safe, Large-Format Lithium Ion Batteries for Aircraft

YTP will develop technology that provides a high performance, modular Li-ion battery with: redundant safety features, safer thin, metal case cell designs; fin/micro-channel thermal control system; and an evaporating fluid system that rapidly quenches failing cells to prevent thermal runaway and fratricide. The end goal of the proposal is making a lighter, longer lasting, less expensive, safer JSF Battery. As a novel part of the battery design, YTP will study and test the implementation of an active cooling system based on the evaporation of a pressurized fluid such as CO2 or R134a. YTP will demonstrate that we can manufacture a smaller and lighter JSF cell which will be verified by testing the enhanced chemistry against YTP"s existing offering for the JSF, which meets the full electrical performance requirements. YTP will work with URI to concentrate to the JSF requirements their extensive work on atomic modeling of electrolytes and SEI layers with improved conductivity and thermal stability. Through modeling and testing, the work will demonstrate that the advanced thermal system will allow for a battery that can both resist failures and tolerate larger failures without going into thermal runaway.