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Novel Approaches To Fast Ocv Characterization And Improved Capacity Estimation In Lithium Ion Batteries, James Vu Nguyen
Novel Approaches To Fast Ocv Characterization And Improved Capacity Estimation In Lithium Ion Batteries, James Vu Nguyen
Electronic Theses and Dissertations
This thesis considers the problem of open circuit voltage (OCV) to state of charge (SOC) characterization in li-ion batteries for battery reuse applications. The traditional approach to OCV-SOC characterization is done by collecting voltage and current data through a slow discharge and charge process; this process usually takes about 60 hours. Such OCV-SOC characterization is performed on a few sample batteries because the OCV-SOC characterization is considered to be the same for new batteries coming out of the same manufacturing process. However, the characteristics of a battery may change as it is used for years in different environmental and usage …