Nonflammable Lithium-ion Battery Electrolytes For Extended Operational Temperature Ranges

This SBIR project has the goal of developing a technology for the fabrication of advanced Li -ion batteries with increased safety capable to operate over an extended temperature range. Most state of the art batteries contain electrolytes with very volatilesolvents of extreme flammability and their electrical performance degrades drastically at very low or high temperatures. It is proposed to develop novel electrolytes, designed to be nonflammable and, due to their reduced viscosity, will permit efficientbattery operation over the entire military temperature range from -40C to 80C. The development will result in safer Li-Ion batteries for operation over a wide temperature range in e.g. communications equipment, emergency transmitters and locators,portable computers, video recorders, night vision devices, various sensors.