Electrode assembly and electrochemical cell including the same
US-10763534-B2 · Sep 1, 2020 · US
Sealed battery
US8940422B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8940422-B2 |
| Application number | US-88525206-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 16, 2006 |
| Priority date | Mar 18, 2005 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A battery cell includes a battery housing case formed with a through hole communicating with an interior space, a hollow rivet, and a seal rubber. The hollow rivet has a seal surface annularly extending outside the battery housing case, and a hollow portion formed with an exhaust port continuous to the inner edge of the seal surface and positioned at the through hole to allow gas in the interior space to flow out through the exhaust port. The seal rubber has a contact unit extending annularly facing the seal surface to press the seal surface and is provided so as to close the exhaust port. The contact unit is formed to project toward the seal surface so as to contact the seal surface at a position away from the inner edge of the seal surface. Such an arrangement prevents an electrolyte leakage over a long period of time.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sealed battery comprising: a case body forming an interior space in which an electrolyte is arranged, the case body having a through-hole formed therein that communicates with the interior space, the case body forming a first terminal which is one of a negative terminal and a positive terminal of the sealed battery; a second terminal which is the other one of the negative terminal and the positive terminal of the sealed battery, the second terminal…
Assignees
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Classifications
- H01M10/281Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8940422B2 cover?
- A battery cell includes a battery housing case formed with a through hole communicating with an interior space, a hollow rivet, and a seal rubber. The hollow rivet has a seal surface annularly extending outside the battery housing case, and a hollow portion formed with an exhaust port continuous to the inner edge of the seal surface and positioned at the through hole to allow gas in the interio…
- Who is the assignee on this patent?
- Ito Masanori, Matsuura Tomohiro, Eto Toyohiko, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01M10/281. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 2015 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).