Battery module
US-2024363944-A1 · Oct 31, 2024 · US
Secondary battery
US2017294635A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017294635-A1 |
| Application number | US-201715446308-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 1, 2017 |
| Priority date | Apr 11, 2016 |
| Publication date | Oct 12, 2017 |
| Grant date | — |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A secondary battery includes a cylindrical can; an electrode assembly accommodated in the cylindrical can with an electrolyte; a cap assembly sealing the cylindrical can, a top-end height of the cap assembly being equal to or less than a top-end height of the cylindrical can; and an insulation layer on a surface of the cap assembly that is exposed to the outside of the cylindrical can.
First claim
Opening claim text (preview).
What is claimed is: 1 . A secondary battery comprising: a cylindrical can; an electrode assembly accommodated in the cylindrical can; a cap assembly sealing the cylindrical can, a top-end height of the cap assembly being equal to or less than a top-end height of the cylindrical can; and an insulation layer on a surface of the cap assembly that is exposed to the outside of the cylindrical can. 2 . The secondary battery of claim 1 , wherein the insulation layer comprises a polyimide film or a hot melt block. 3 . The secondary battery of claim 1 , wherein the cap assembly comprises a cap-up comprising: a terminal portion; a bent portion downwardly bent from the terminal portion; and an extending portion outwardly extending from the bent portion, and wherein the insulation layer is on the extending portion of the cap-up. 4 . The secondary battery of claim 3 , wherein a thickness of the insulation layer is less than a height of the bent portion. 5 . The secondary battery of claim 3 , wherein a thickness of the insulation layer is equal to or less than a height of the bent portion. 6 . The secondary battery of claim 3 , wherein the cap assembly further comprises a safety plate comprising: a main body under the cap-up; a main-body bent portion upwardly extending from a periphery of the main body; and a main-body extending portion inwardly extending from the main-body bent portion and covering a top surface of the cap-up, and wherein the insulation layer is on the main-body extending portion of the safety plate. 7 . The secondary battery of claim 6 , wherein the insulation layer on the cap-up and the insulation layer on the safety plate are connected to each other. 8 . The secondary battery of claim 1 , further comprising a gasket between the cylindrical can and the cap assembly, wherein the insulation layer is between the gasket and the cap assembly. 9 . The secondary battery of claim 1 , further comprising a lead tab connected to a top end of the cylindrical can. 10 . The secondary battery of claim 9 , wherein the insulation layer is between the lead tab and the cap assembly.
Assignees
Inventors
Classifications
Spacers; Insulating plates · CPC title
by crimping · CPC title
characterised by the material · CPC title
- H01M50/572Primary
Means for preventing undesired use or discharge · CPC title
Electrode connections inside a battery casing · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2017294635A1 cover?
- A secondary battery includes a cylindrical can; an electrode assembly accommodated in the cylindrical can with an electrolyte; a cap assembly sealing the cylindrical can, a top-end height of the cap assembly being equal to or less than a top-end height of the cylindrical can; and an insulation layer on a surface of the cap assembly that is exposed to the outside of the cylindrical can.
- Who is the assignee on this patent?
- Samsung Sdi Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M50/572. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 12 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).