Dual-Voltage Lithium-Ion 6T Batteries for Low-voltage and High-voltage Applications

Spear Power Systems will leverage their strong experience developing advanced lithium-ion battery systems and robust battery management systems for defense and industrial programs to research and evaluate viable lithium-ion cell technologies and emerging power-dense semiconductor switch technologies to support an innovative dual-voltage lithium-ion 6T concept design. During Phase I, Spear will make modifications to their proven Scalable Battery Management System (SBMS) to safely and efficiently support dual-voltage outputs, conduct trade studies to determine cost-optimized approach, and generate electrical and thermal models that demonstrate projected performance. During the Phase I Option, Spear will procure materials to test power switching circuitry designed in Phase I to validate their proof of concept system design. Results of this testing will be used to determine the recommended path toward a complete Phase II prototype build with system-level testing showcasing 24V and 48V performance and demonstration as a 300V hybrid mobility system. The benefits of Spear’s unique and innovative approach to this topic include flexible scalability for support of high voltage battery systems, establishing a fixed set of materials to improve manufacturability and reduce costs, and standardization of battery configurations designed to enhance operations and reduce costs through common inventory.