A High Capacity Solid State Battery for Wireless Sensor Applications

The U.S. Navy is seeking an energy storage solution that delivers high energy density and improved safety for wireless sensor applications. Current secondary batteries cannot provide sufficient energy and power density required for the Navys applications. In addition, the current batteries are not intrinsically safe as they use flammable liquid electrolyte, while our proposed technology has the ability to deliver more energy with enhanced safety and reliability. In Phase I, we will demonstrate a solid-state battery by employing high capacity electrodes and inorganic solid electrolyte. The battery utilizes existing high capacity electrodes developed by CFDRC and high conductive solid electrolytes. We will focus on evaluating both feasibility of the concept and operational capacity of the device by i) synthesizing the solid electrolyte, ii) fabricating the high capacity electrodes, iii) assembling the cell and electrochemical testing of the battery, and iv) computational modeling to predict the charge and discharge characteristics. The solid state battery will be a safe, reliable solution providing sufficient energy for the Navy applications.