Energy storage device and method of manufacturing energy storage device
US-2015357670-A1 · Dec 10, 2015 · US
Secondary battery
US2017194621A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017194621-A1 |
| Application number | US-201615335253-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 26, 2016 |
| Priority date | Jan 4, 2016 |
| Publication date | Jul 6, 2017 |
| Grant date | — |
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- Title
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- Abstract
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
A secondary battery includes an electrode assembly; a case accommodating the electrode assembly; a cap plate sealing the case; an injection opening in the cap plate; and an exhaustion opening in the cap plate and being spaced from the injection opening.
First claim
Opening claim text (preview).
What is claimed is: 1 . A secondary battery comprising: an electrode assembly; a case accommodating the electrode assembly; a cap plate sealing the case; an injection opening in the cap plate; and an exhaustion opening in the cap plate and being spaced from the injection opening. 2 . The secondary battery of claim 1 , wherein the injection opening is no smaller than the exhaustion opening. 3 . The secondary battery of claim 1 , wherein the electrode assembly is a negative electrode plate, a positive electrode plate, and a separator wound together and defining a winding axis. 4 . The secondary battery of claim 3 , wherein the winding axis of the electrode assembly extends perpendicular to a direction in which the injection opening and the exhaustion opening are defined in the cap plate. 5 . The secondary battery of claim 3 , wherein the winding axis of the electrode assembly extends parallel to a direction in which the injection opening and the exhaustion opening are defined in the cap plate. 6 . The secondary battery of claim 1 , wherein the exhaustion opening has a membrane formed therein. 7 . The secondary battery of claim 6 , wherein the membrane is configured to allow only a gas-phase material to pass therethrough. 8 . The secondary battery of claim 1 , the cap plate further comprising an inversion plate, wherein, when the internal pressure of the case exceeds a first pressure, the inversion plate is configured to invert to thereby generate a short-circuit. 9 . The secondary battery of claim 8 , wherein when an electrolyte is injected into the case through the injection opening, a second pressure is generated in the case and wherein the second pressure is lower than the first pressure. 10 . A secondary battery comprising: an electrode assembly; a case accommodating the electrode assembly; a cap plate sealing the case; an injection opening in the cap plate; and an exhaustion opening in the case. 11 . The secondary battery of claim 10 , wherein the injection opening is no smaller than the exhaustion opening. 12 . The secondary battery of claim 10 , wherein the electrode assembly is a negative electrode plate, a positive electrode plate, and a separator wound together and defining a winding axis. 13 . The secondary battery of claim 12 , wherein a direction in which the exhaustion opening is defined in the case and a direction in which the injection opening is defined in the cap plate are parallel to each other. 14 . The secondary battery of claim 13 , wherein the winding axis of the electrode assembly is parallel to the direction in which the injection opening and the exhaustion opening extend. 15 . The secondary battery of claim 10 , wherein the exhaustion opening has a membrane formed therein. 16 . The secondary battery of claim 15 , wherein the membrane is configured to allow only a gas-phase material to pass therethrough.
Assignees
Inventors
Classifications
- H01M10/0431Primary
Cells with wound or folded electrodes (H01M10/045 takes precedence) · CPC title
Details (of electrodes H01M4/00; of non-active parts H01M50/00) · CPC title
Filling ports · CPC title
Electricity · mapped topic
- H01M2/36Primary
Electricity · mapped topic
Patent family
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2017194621A1 cover?
- A secondary battery includes an electrode assembly; a case accommodating the electrode assembly; a cap plate sealing the case; an injection opening in the cap plate; and an exhaustion opening in the cap plate and being spaced from the injection opening.
- Who is the assignee on this patent?
- Samsung Sdi Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0431. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jul 06 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).