Alkaline dry batteries
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYasuyuki Kusumoto, Yasufumi Takahashi, Atsushi Fukui
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Abstract
An alkaline dry battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an alkaline electrolytic solution contained in the positive electrode, the negative electrode and the separator. The negative electrode includes a negative electrode active material including zinc, and an additive. The additive includes at least one selected from the group consisting of maleic acid, maleic anhydride and maleate salts.
Claims2
An alkaline dry battery comprising a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an alkaline electrolytic solution contained in the positive electrode, the negative electrode and the separator, wherein
- the negative electrode comprises a negative electrode active material comprising zinc,
- the alkaline electrolytic solution contained in the negative electrode comprises an additive, and
- the additive comprises maleic acid,
- wherein the amount of the additive contained in the negative electrode is not less than 0.2 parts by mass and not more than 4 parts by mass per 100 parts by mass of the electrolytic solution contained in the negative electrode.
Dependencies are inferred from the claim text.