Battery Performance Diagnostics and Prediction

Battery Performance Diagnostics and Prediction The Idaho National Laboratory (INL), a DOE national laboratory managed by Battelle Energy Alliance, LLC, has developed a set of methods to define, measure, evaluate, track and predict performance and aging trends for advanced chemistry batteries, including lithium-ion batteries. INL's novel modeling approach generates principal performance metrics such as kinetic performance, capacity loss, conductance fade, power loss, and ancillary quantities. The kinetics model yields highly accurate predictions of voltage drop and impedance contributions for a given electrochemical device at arbitrary conditions of temperature, current, pulse time, and device aging. Performance over battery life is treated by a self-consistent framework that employs physics-based models to accomplish diagnosis of aging mechanisms. For example, the model enables forecasting of capacity loss and contributing terms, allowing evaluation of remaining useful life as based on a minimum performance criterion. Hence, the inventions will facilitate improvement of battery technology by isolating foremost failure sources, and can serve as a platform to place improved imbedded diagnostics and dynamic monitoring within the intended application. The suite of copyrighted and patent-pending intellectual property is available for licensing. Expressions of interest should be directed to the contacts listed below. Technical Lead: Kevin L Gering Phone: 208.526.4173 E-Mail: Kevin.Gering@inl.gov Business Lead: David Anderson Phone: 208.526.0837 E-Mail: David.Anderson@inl.gov