Alkaline dry batteries

US11322737B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11322737-B2
Application numberUS-201816979398-A
CountryUS
Kind codeB2
Filing dateOct 11, 2018
Priority dateMar 23, 2018
Publication dateMay 3, 2022
Grant dateMay 3, 2022

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

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.

First claim

Opening claim text (preview).

The invention claimed is: 1. 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, and an additive, the additive comprises maleic anhydride, and 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. 2. The alkaline dry battery according to claim 1 , wherein the positive electrode comprises the additive.

Assignees

Inventors

Classifications

  • Alkaline electrolytes · CPC title

  • Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid · CPC title

  • of manganese · CPC title

  • Negative electrodes · CPC title

  • Energy storage using batteries · CPC title

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Frequently asked questions

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What does patent US11322737B2 cover?
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…
Who is the assignee on this patent?
Panasonic Ip Man Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01M4/244. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue May 03 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).