Lead material for battery

US10270079B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10270079-B2
Application numberUS-201615248428-A
CountryUS
Kind codeB2
Filing dateAug 26, 2016
Priority dateSep 11, 2015
Publication dateApr 23, 2019
Grant dateApr 23, 2019

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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

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A lead material for a battery includes a metal plate made of single metal, in which the hardness of a central portion is lower than the hardness of a surface layer portion.

First claim

Opening claim text (preview).

What is claimed is: 1. A lead material for a battery, comprising a metal plate made of single metal, in which a hardness of a central portion is lower than a hardness of a surface layer portion. 2. The lead material for a battery according to claim 1 , wherein the hardness of the central portion of the metal plate is not more than 95% of the hardness of the surface layer portion of the metal plate. 3. The lead material for a battery according to claim 2 , wherein the hardness of the central portion of the metal plate is not more than 90% of the hardness of the surface layer portion of the metal plate. 4. The lead material for a battery according to claim 1 , wherein the metal plate is made of pure Ni or a Ni-based alloy. 5. The lead material for a battery according to claim 1 , further comprising a dissimilar metal layer stacked on the metal plate and made of metal that is different in component from the metal plate. 6. The lead material for a battery according to claim 5 , wherein the metal plate is held between dissimilar metal layers. 7. A lead material for a battery, including a composite metal plate comprising: a metal plate made of single metal; and a dissimilar metal layer made of metal that is different in component from the metal plate, wherein a hardness of a central portion of the composite metal plate is lower than a hardness of a surface layer portion of the composite metal plate. 8. The lead material for a battery according to claim 7 , wherein a thickness of the dissimilar metal layer is not more than a thickness of the metal plate, and the hardness of the central portion of the composite metal plate is lower than the hardness of the surface layer portion, closer to the metal plate, of the composite metal plate.

Assignees

Inventors

Classifications

  • characterised by the shape of the leads or tabs · CPC title

  • characterised by the material of the leads or tabs · CPC title

  • Electricity · mapped topic

  • H01M2/26Primary

    Electricity · mapped topic

  • Connection of several leads or tabs of wound or folded electrode stacks · CPC title

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Frequently asked questions

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What does patent US10270079B2 cover?
A lead material for a battery includes a metal plate made of single metal, in which the hardness of a central portion is lower than the hardness of a surface layer portion.
Who is the assignee on this patent?
Hitachi Metals Neomaterial Ltd, Hitachi Metals Ltd
What technology area does this patent fall under?
Primary CPC classification H01M2/26. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Apr 23 2019 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).