Process for preventing electrical storage cell capacity loss

Details Process for preventing electrical storage cell capacity loss Process for preventing electrical storage cell capacity loss

H - Electricity

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319/124, 319/45

H01M 10/48 (2006.01) H01M 10/34 (2006.01) H01M 10/42 (2006.01) H02J 7/10 (2006.01)

Patent

CA 1284355

PROCESS FOR PREVENTING ELECTRICAL STORAGE CELL CAPACITY LOSS ABSTRACT OF THE DISCLOSURE A process for preventing electrical capacity loss during storage of a pressurized nickel-hydrogen electrical storage cell. An electrical precharge is applied to the positive electrode of the cell, so that discharge of the cell is negative electrode limited. In one approach, the cell is charged, while sealed, to a state of charge corres- ponding to a first gas pressure, and then the hydrogen pressure is reduced to a lower value, preferably about atmospheric. In another approach, a current is passed through the cell while the cell is unsealed and maintained at atmospheric gas pressure, until the cell reaches the desired state of charge.

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