Non-aqueous electrolyte power storage element degradation detector, power storage device, non-aqueous electrolyte power storage element impairment detection system, and nonaqueous electrolyte power storage element degradation detection process

摘要

According to an embodiment of the present invention, the degradation of a nonaqueous electrolyte power storage element is detected based on a first rate of increase and a second rate of increase, wherein the first rate of increase is a rate of increase of a DC resistance value determined by measuring the nonaqueous electrolyte power storage element over a first Time period, wherein the second increment rate is a DC resistance value obtained by measuring the nonaqueous electrolyte power storage element over a second time period which is longer than the first time period.