APPARATUS AND METHOD FOR CHARACTERIZING AND MANAGING SERIES STACKED ENERGY STORAGE CELLS

摘要

An electrochemical storage diagnostic system is configured to perform an electrical test to measure cell parameters. The diagnostic system includes a charge management controller, electrically coupled to a power multiplexer, a power converter circuit, and an isolated converter circuit. The charge management controller is programmed with instructions to identify a device under test, selected from at least one member of the plurality of electrochemical cells stacked in series to perform an electrical test. Then, adjust a charge in the secondary energy storage device to a target voltage through the power multiplexer by transferring energy between the secondary energy storage device and a support device, selected from at least one member of the plurality of electrochemical cells in series. After that, transfer electrical power through the power multiplexer and power converter circuit to the device under test in order to perform the electrical test. Finally, complete the electrical test.