Process for preparing cadmium hydroxide, and alkaline secondary

Details Process for preparing cadmium hydroxide, and alkaline secondary Process for preparing cadmium hydroxide, and alkaline secondary

1989-11-15

1991-12-10

Kalafut, Stephen J.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429222, 423104, H01M 426

Patent

active

050717227

ABSTRACT:
The present invention provides a process for easily preparing .gamma.-Cd(OH).sub.2. The present invention facilitates improvement in the charge/discharge performance and energy density of an alkaline secondary battery having a cadmium electrode including .gamma.-Cd(OH).sub.2. The present invention provides superrapid-chargeable batteries, such as a nickel-cadmium alkaline secondary battery having a cadmium electrode including .gamma.-Cd(OH).sub.2 in which the weight of cadmium hydroxide contained in the negative electrode is 0.95 times as much as the weight of nickel hydroxide contained in the positive electrode, a manganese dioxide-cadmium alkaline secondary battery in which the weight of cadmium hydroxide contained in the negative electrode is not more than 0.84 times as much as the weight of manganese dioxide contained in the positive electrode, and a silver oxide-cadmium alkaline secondary battery in which the weight of cadmium hydroxide contained in the negative electrode is not more than 1.36 times as much as the weight of silver contained in the positive electrode.

REFERENCES:
patent: 4172184 (1979-10-01), Bloom et al.
patent: 4275127 (1981-06-01), Ritterman et al.
patent: 4614696 (1986-09-01), Ito et al.
patent: 4713126 (1987-12-01), Wolpt et al.
patent: 4906539 (1990-03-01), Teresaka

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