Alkaline dry battery and method for evaluating separator for...

Details Alkaline dry battery and method for evaluating separator for... Alkaline dry battery and method for evaluating separator for...

2005-06-28

2009-06-09

Kalafut, Stephen J. (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

C429S249000, C073S838000

Reexamination Certificate

active

07544444

ABSTRACT:
An alkaline dry battery having high reliability is provided by using a separator that has excellent drop impact resistance when impregnated with an alkaline electrolyte. In the alkaline dry battery according to the present invention, an electrolyte solution is an alkaline aqueous solution containing 30 to 40% by weight of potassium hydroxide, and a separator impregnated with the alkaline aqueous solution has a burst index within a range of 2 to 10 kPa/(g/m2).

REFERENCES:
patent: 4288503 (1981-09-01), Goldberg
patent: 4812145 (1989-03-01), LaBonte
patent: 5202178 (1993-04-01), Turner
patent: 2002/0160259 (2002-10-01), Kinn et al.
patent: 06-231746 (1994-08-01), None
patent: 2000-090939 (2000-03-01), None
Japanese Office Action issued in Japanese Patent Application No. JP 2004-194395 dated Jan. 29, 2009.

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