Battery terminal and method for manufacturing battery
US-2017054131-A1 · Feb 23, 2017 · US
Electric storage device
US2023268626A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023268626-A1 |
| Application number | US-202118010114-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 15, 2021 |
| Priority date | Jun 16, 2020 |
| Publication date | Aug 24, 2023 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
This embodiment includes an electrode assembly; a case for housing the electrode assembly; and an external terminal made of a metal and disposed on the case, in which the external terminal includes: a flange extending along an outer surface of the case; and a shaft extending from the flange to pass through the case and be conductive with the electrode assembly, the flange is made of a clad material having a plurality of metal layers layered in a passing direction of the shaft, each adjacent ones of the plurality of metal layers are made of different metals in kind, and one of the plurality of metal layers of the flange at one end in the passing direction is made of the same metal in kind as the metal of the shaft, and is welded to the shaft.
First claim
Opening claim text (preview).
1 . An electric storage device comprising: an electrode assembly; a case for housing the electrode assembly; and an external terminal made of a metal and disposed on the case, wherein the external terminal comprises: a flange extending along an outer surface of the case; and a shaft extending from the flange to pass through the case in a passing direction and be conductive with the electrode assembly, the flange is made of a clad material having a plurality of metal layers layered in the passing direction of the shaft, each adjacent ones of the plurality of metal layers are made of different metals in kind, and one of the plurality of metal layers of the flange at one end in the passing direction is made of the same metal in kind as the metal of the shaft, and is welded to the shaft. 2 . The electric storage device according to claim 1 , wherein the flange and the shaft are connected to each other with the shaft being swaged, and a weld zone between the one of the plurality of metal layers at the one end and the shaft is set to have a such a size as to cause no change in resistance of the electric storage device before and after the swaged portion of the shaft is damaged if such damage occurs. 3 . The electric storage device according to claim 1 , wherein the flange and the shaft are connected to each other with the shaft being swaged, a contact area between the flange and the swaged portion of the shaft is 46 mm 2 or more and 75 mm 2 or less, the flange has a dimension in the passing direction that is 0.9 mm or more and 1.1 mm or less, and the one of the plurality of metal layers welded to the shaft has a dimension in the passing direction that is 0.4 mm or more and 0.6 mm or less.
Assignees
Inventors
Classifications
- H01M50/553Primary
Terminals adapted for prismatic, pouch or rectangular cells · CPC title
characterised by the material · CPC title
by welding, soldering or brazing · CPC title
- H01G11/74Primary
Terminals, e.g. extensions of current collectors · CPC title
Energy storage using batteries · CPC title
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Frequently asked questions
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- What does patent US2023268626A1 cover?
- This embodiment includes an electrode assembly; a case for housing the electrode assembly; and an external terminal made of a metal and disposed on the case, in which the external terminal includes: a flange extending along an outer surface of the case; and a shaft extending from the flange to pass through the case and be conductive with the electrode assembly, the flange is made of a clad mate…
- Who is the assignee on this patent?
- Gs Yuasa Int Ltd, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M50/553. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 24 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).