Nickel/hydrogen storage battery and method of manufacturing the

Details Nickel/hydrogen storage battery and method of manufacturing the Nickel/hydrogen storage battery and method of manufacturing the

1991-03-25

1991-12-31

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Fluid active material or two-fluid electrolyte combination...

429206, 429218, 429223, 296235, H01M 436

Patent

active

050771493

ABSTRACT:
A nickel/hydrogen storage battery comprises a nickel positive electrode having nickel oxide as a main active material, a negative electrode mainly composed of a hydrogen absorbing alloy capable of carrying out the electrochemical hydrogen absorbing and desorbing reaction, an alkaline electrolyte, and a separator, a zinc compound being contained in the nickel positive electrode, the negative electrode and the separator.
The content of the zinc compound in terms of zinc oxide is 30-500 mg per Ah of battery capacity in the nickel positive electrode and 0.3-15 mg in the negative electrode and the separator.
Thus, the expansion of the nickel positive electrode can be inhibited and the electrolyte retention of the negative electrode and the separator can be improved and the cycle life of the battery can be prolonged.

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patent: 4977043 (1990-12-01), Kadouchi et al.
patent: 5008164 (1991-04-01), Furukawa et al.

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