An Advanced Undersea Lithium Ion Management System (U-LIMS) Navy STTR FY2010.A Sol No.: Navy STTR FY2010.A Topic No.: N10A-T013 Topic Title: An Advanced Undersea Lithium Ion Management System (U-LIMS) Proposal No.: N10A-013-0005 Firm: Impact Technologies, LLC 200 Canal View Blvd Rochester, New York 14623-2851 Contact: Matthew Watson Phone: (814) 861-6273 Web Site: www.impact-tek.com Abstract: Impact Technologies, in collaboration with Penn State Applied Research Laboratory, proposes to develop an advanced Battery Monitoring and Management System (BMMS) for lithium-ion battery packs that ensures adequate, safe, and reliable operation. This system will focus on real time diagnostics, prediction of catastrophic failure, and risk assessment for individual cells in high power applications. Intelligent cell monitoring will be developed to automate the cell interrogation based on risk and time to failure estimates. Phase I will strive to demonstrate the ability to detect failure modes, predict when they will reach condemning limits at the cell/module level in real time, and respond to such conditions by taking the appropriate module offline to prevent damage. The architecture for intelligent cell monitoring will also be designed based on the host platform and target battery. Phase II will then extend these developments for full size cells and multi-cell modules and develop a prototype system to regulate cells during charge and discharge cycles. In Phase III, we will conduct shipboard testing and suitability analysis of the modeled system. Commercialization and transition plans will be developed for full scale implementation along with user manuals, training guides, and support plans. Benefits: The advances of modern military submersible vehicles are pushing the limits of current battery technologies. The needs for higher speed, longer duration, and increased power generate a requirement to upgrade the energy capacity on these platforms. The same is true for other sea vehicles as well as ground and aerial vehicles, both military and commercial. Lithium-ion (LI) batteries are rapidly becoming a viable choice for these systems, and other applications mainly because they contain higher energy density, provide higher cycle life, offer better resistance to memory effects, and weigh less than other potential technologies. However, lithium-ion batteries have the potential for catastrophic failure that can lead to total loss of the asset. Therefore, in order for LI batteries to be effectively and safely fielded for high power applications (i.e., 10+ kWH), active management circuitry is needed to ensure proper operation and avoid loss of equipment. The proposed system fulfills this need and would therefore allow opportunities for advancing systems in military, industrial, and commercial arenas that are currently limited by power constraints or design challenges presented by existing battery systems due to size, weight, lifecycle costs, or energy capacity. In addition, the core technology also has large Return-On-Investment potential for battery state monitoring of legacy military batteries. Based on a 2002 study, the US military spends $300 million/year in battery procurement alone. This is fueled by the corrective or preventative maintenance schemes currently used to maintain these batteries. However, the proposed system presents the information needed to employ a condition-based maintenance (CBM) philosophy, which would increase system availability and decrease Operation and Support (O&S) Costs. The proposed techniques could also be implemented in a wide range of commercial applications including, HEVs/EVs, UAVs, aircraft, and other ground vehicles and sea vessels. Return