Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1992-10-09
1995-08-29
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
429245, H01M 466
Patent
active
054459087
ABSTRACT:
The present invention provides an alkaline dry cell which has a negative electrode comprising zinc alloy powders free of mercury as a negative electrode active material and provided in the center portion of the cell, a positive electrode provided around the outer surface of the negative electrode with a separator provided therebetween and a current collector comprising copper or a copper alloy and inserted in the negative electrode and which is inhibited from generation of hydrogen gas and from leakage of liquid. This alkaline dry cell is characterized in that the surface of the current collector is plated with a metal of high hydrogen overvoltage such as tin, lead, copper, zinc or an alloy of two or more of these metals.
REFERENCES:
patent: 4992343 (1991-02-01), Nordi
patent: 5112705 (1992-05-01), Hunter et al.
Inoue Koichi
Kitagawa Kohei
Okubo Kazutoshi
Tanaka Keisuke
Watanabe Tomoya
Kalafut Stephen
Matsushita Electric - Industrial Co., Ltd.
Nuzzolillo M.
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