Method of forming battery electrodes

Details Method of forming battery electrodes Method of forming battery electrodes

C - Chemistry, Metallurgy

25

D

204/133, 319/71,

C25D 5/18 (2006.01) C25B 11/04 (2006.01)

Patent

CA 1216546

METHOD OF FORMING BATTERY ELECTRODES ABSTRACT OF THE DISCLOSURE A method for forming battery plates or electrodes produces a substantial reduction in the forming energy per gram of active material, by providing the plates or electrodes being formed with energy in the form of at least three, and preferably eight, constant-current steps, an intermediate step being a higher current level than steps which precede or follow it. A low constant current is provided at the beginning of formation, when plate resistivity appears to be high due to the resistivity of the raw material, a higher constant-current is provided when formation has begun and plate conductivity is high, and a lower constant-current is provided towards the end of formation, as plate or electrode potential builds towards full charge. The method and apparatus disclosed is used in the tank formation of positive and negative battery plates or electrodes for use in dry charged batteries having antimonial and calcium grid positive plates.

441743

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