| abstract |
Disclosure of Invention Technical Problem [8] The present invention prevents deterioration of a battery or restores deterioration, maximizes the charge / discharge performance of the battery, and maintains the charge / discharge performance of the battery for a long time. In a battery such as a lithium ion secondary battery, various causes of occurrence or deterioration are reaction products generated on the surface of an electrode, and electrical stimulation, specifically, a current (Reverse pulse current) is applied to dissolve the reaction product. |