Method of operating zinc-halogen secondary battery

Details Method of operating zinc-halogen secondary battery Method of operating zinc-halogen secondary battery

1988-01-19

1989-08-15

Kalafut, Stephen J.

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 3, 429 17, 429 27, 320 14, 320 21, 320 25, H01M 800, H01M 1044

Patent

active

048574198

ABSTRACT:
In recharging a zinc-halogen secondary battery or battery, zinc dendrite is readily formed on the negative electrode and therefore it has been difficult to form a uniformly thick zinc layer on the negative electrode. This inevitably causes a short cyclic battery lifetime. To overcome this problem, electric pulse treatment is effected at the electrode before dc battery recharging process. In zinc oxide resolving treatment, an electrically positive pulse is applied to the negative electrode. In zinc fine crystal depositing treatment, an electrically negative pulse is applied to the negative electrode. Where the above pulse treatments are effected in combination in the electrolyte including a zinc dendrite inhibitor, a synergistic effect can be obtained.

REFERENCES:
patent: 3556849 (1971-01-01), Oswin et al.
patent: 3597673 (1971-08-01), Burkett et al.
patent: 3609503 (1971-09-01), Burkett et al.
patent: 3683256 (1972-08-01), Mas
patent: 3732481 (1973-05-01), Mas
patent: 4152224 (1979-05-01), Klein et al.
patent: 4343868 (1982-08-01), Putt

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