Liquid Electrolyte Composition, and Electrochemical Cell Comprising Said Electrolyte Composition
US-2024347772-A1 · Oct 17, 2024 · US
Lithium ion battery of crimping shape of increased safety
US9130203B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130203-B2 |
| Application number | US-51856107-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 7, 2007 |
| Priority date | Dec 11, 2006 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A cylindrical battery has a crimp region is formed at the upper end of the container. The upper end of the crimp region is gently bent to surround a gasket located at the inside of the crimp region. A bent front end is continuously bent twice to press the gasket, while the bent front end extends inward, such that a radius of curvature (R1) of the first bent area is less than a radius of curvature (R2) of the second bent area. The upper end of the crimp region of the cylindrical container is continuously bent twice in a predetermined condition. Consequently, when external physical impacts are applied to the battery, and when the internal pressure of the battery increases, the sealed portions are restrained from being separated from each other, thereby preventing the leakage of an electrolyte and thus greatly improving the safety of the battery.
First claim
Opening claim text (preview).
What is claimed is: 1. A cylindrical battery, comprising: a cylindrical container having an open upper end, the upper end forming a crimp region; an outer surface of the cylindrical container; an insulative film covering the outer surface of the cylindrical container, excluding electrode terminals, the insulative film made of polymer resin exhibiting an impact absorptivity; an electrode assembly mounted in the cylindrical container; a cap assembly mounted to the upper end…
Assignees
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Classifications
- H01M10/0525Primary
Electricity · mapped topic
- H01M50/167Primary
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 US9130203B2 cover?
- A cylindrical battery has a crimp region is formed at the upper end of the container. The upper end of the crimp region is gently bent to surround a gasket located at the inside of the crimp region. A bent front end is continuously bent twice to press the gasket, while the bent front end extends inward, such that a radius of curvature (R1) of the first bent area is less than a radius of curvatu…
- Who is the assignee on this patent?
- Kim Sungjong, Jung Jaehan, Kim Bongtae, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 08 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).