Patent ID: 8449998
Filing Date: 2013-05-28
Classification: G01R,H01M,Y02E

Abstract:
1. A battery system, comprising: a battery cell; a heat exchanger disposed adjacent to the battery cell; first and second frame members having the battery cell and the heat exchanger disposed therebetween, the first and second frame members being configured to be coupled together; a fluid supply system configured to supply a coolant fluid to the heat exchanger and to receive the coolant fluid from the heat exchanger; a voltage sensor configured to generate a first signal indicative of a voltage level output by the battery cell over a time interval; a current sensor configured to generate a second signal indicative of a level of electrical current flowing through the battery cell over the time interval; a microprocessor programmed to calculate an electrical resistance level of the battery cell based on the first and second signals; and the microprocessor programmed to generate a control signal to induce the fluid supply system to increase a pressure level of the coolant fluid being supplied to the heat exchanger to a first pressure level, based on the electrical resistance level, such that an increased force is applied to at least one side wall of the battery cell.