Alkaline battery

An alkaline battery and alkaline technology, applied in dry batteries, battery electrodes, active material electrodes, etc., can solve the problems of poor discharge characteristics under heavy load, large self-discharge, and poor storage performance
CN1322383AInactive Publication Date: 2001-11-14PANASONIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANASONIC CORP
Publication Date
2001-11-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides an alkaline battery having good heavy-loading discharge characteristics even after long-term storage at high temperatures. The alkaline battery of the present invention comprises a positive electrode containing manganese dioxide and nickel oxyhydroxide as an active material, a negative electrode containing zinc as an active material, and an alkaline electrolyte. The positive electrode further contains at least one compound selected from the group consisting of an oxygen-containing zinc compound, an oxygen-containing calcium compound, an oxygen-containing yttrium compound, and an oxygen-containing titanium compound.
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Description

technical field

[0001] This invention relates to improved alkaline cells utilizing manganese dioxide and nickel oxyhydroxide as the anode active materials. technical background

[0002] Alkaline batteries such as alkaline dry batteries have a structure in which a cylindrical anode is tightly packed into an anode casing which also functions as an anode terminal, and a gel cathode is arranged at the center of the cylindrical anode by a separator.

[0003] Appliances using these batteries have increased loads, and therefore, batteries having excellent large-load discharge characteristics are required.

[0004] One technique proposed is to mix nickel oxyhydroxide and an anode material mixture constituting the anode to provide a battery having excellent large-load discharge characteristics (for example, Japanese Laid-Open Patent Publication Sho 57-7226m6).

[0005] The proposed alkaline battery containing manganese dioxide and nickel oxyhydroxide as the anode active material has...

Claims

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