Initial Conditioning Characterization Test and Other Preliminary Testing

This report summarizes results of the first stage of the testing plan implemented by the Hawaii Natural Energy Institute (HNEI) to evaluate Electric Vehicle (EV) battery durability and reliability under electric utility grid operations. Commercial EV battery cells are tested in order to assess the impact of vehicle to grid and grid to vehicle applications on cell degradation. In this report the focus is on the description of the initial conditioning and characterization test (ICCT), showcasing the intrinsic cell-to-cell variations. This report also introduces a slight modification to the previously reported test plan and provides a status update on the ongoing testing.