Button-type alkaline battery and method of manufacturing the...

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...

Reexamination Certificate

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Details

C429S171000, C429S175000, C429S344000, C429S229000

Reexamination Certificate

active

08003247

ABSTRACT:
A button-type alkaline battery in which an anode3containing an anode active material and an alkaline electrolyte is disposed in a sealed space formed by sealing a cathode housing4with an anode sealing member5, with a gasket6being interposed between the cathode housing4and the anode sealing member5. The anode active material includes mercury-free zinc or a mercury-free zinc alloy. The button-type alkaline battery includes a metal layer7that is disposed between and in contact with the anode sealing member5and the anode3. The metal layer7includes a base material containing zinc, and at least one metal M selected from the group consisting of indium, bismuth, and tin, with the metal M having segregated in the base material.

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