Imperia Batteries, a division of Physical Sciences Inc. (PSI), will develop and demonstrate a modular energy storage solution for integration into large unmanned aerial vehicles in the 1500 to 5000 lbs size class. A modular solution enables straightforward integration across multiple UAV platforms and helps to keep lifecycle costs down. During the Phase I, Imperia will work closely with Raytheon to understand battery specifications and requirements for the target vehicle(s) in order to design the energy modules. Imperia will conduct a trade study on cell level components to ensure suitable battery performance as well as manufacturability, cost, and supply chain requirements. Additionally, Imperia will design electronics and packaging solutions for the designed energy module. In the Phase II, Imperia will prototype the energy module and expand validation activities to ensure form, fit, and function. Successful completion of these efforts will demonstrate the readiness of the technology for further scale-up and demonstrations.