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Micro Air Vehicles (MAV) have emerged as a critical need for the U.S. Air Force. MAVs are envisioned to conduct a variety of indoor and outdoor reconnaissance missions and must be highly mobile and man-portable. Furthermore, many of the envisioned missions for MAVs require significant endurance. Unfortunately, current state-of-the-art lithium-ion batteries are not capable of providing sufficient e ...

Physical Sciences, Inc. (PSI) has demonstrated that electroactive polymer coatings (EAP) may be applied to the surface of the cathode materials for lithium-ion batteries to protect against catastrophic cell failure. These EAP coatings form an electrochemical"switch"that can prevent catastrophic failure in lithium-ion batteries by reversibly changing from a conductor to an insulator on overdischarg ...