A Battery Pack Risk Assessment Tool Navy STTR FY2010.A Sol No.: Navy STTR FY2010.A Topic No.: N10A-T014 Topic Title: A Battery Pack Risk Assessment Tool Proposal No.: N10A-014-0374 Firm: Creare Inc. P.O. Box 71 Hanover, New Hampshire 03755 Contact: Bruce Pilvelait Phone: (603) 643-3800 Web Site: www.creare.com Abstract: When many Lithium-ion battery cells are integrated into a large pack, the possible outcomes resulting from individual cell faults are complex and difficult to predict. Consequently, there is great interest in developing design tools to aid in the optimization of pack performance as well as to understand and mitigate the effects of individual cell failures from propagating to other cells or even the host platform. During this program, we will determine the feasibility of developing a software-based Battery Pack Risk Assessment Tool to accomplish these goals. Our previously developed Lithium-ion battery pack predictive algorithms include three-dimensional, coupled electro-chemical, electrical, and thermal physical models which encompass a multitude of failure mechanisms and provide broad state-of-health awareness. During Phase I we will adapt these algorithms and develop a user interface to allow the designer to assess the overall impact on battery pack and host platform for a cell-level fault. During Phase II we will work with our commercialization partners to conduct laboratory testing, validate the models, and extend the tools to allow analysis of multiple configurations. Benefits: The primary benefit of this program is the development of a Battery Pack Risk Assessment Tool which allows users to analyze the effects of individual cell faults on overall battery pack and host platform health. The near-term application is for unmanned aerial and submersible vehicles and ground force Hybrid Electric Vehicles, but since our work will provide a tool suite that works across a wide range of battery capacities, chemistries, and manufacturers, there will be many other applications as well. Return