Lithium Ion Battery and Ultracapacitors Hybrid for Satellite Power

This proposal develops an integrated lithium ion battery and ultracapacitor power system for satellite and other space applications. Such a novel integrated system could extend battery lifetime and provide a larger pulsed power source than conventional battery systems. In Phase I, a mathematical model is developed to simulate the hybrid lithium battery and ultracapacitor transient response for pulse constant current and constant power discharges. The model will assist in sizing the battery and ultracapacitor components to optimize pulsed and steady state operation of the system. A preliminary manufacturing/assembly process for constructing the system is also provided. BENEFIT: Greatly extends satellite and spacecraft lihium-ion battery lifetime. Provides increased pulsed power discharges for spacecraft thruster and ordnance applications. Commercial applications include HEV and PHEV electric vehicles, electric carts, and portable power applications.