Chip form ultracapacitor
US-12165808-B2 · Dec 10, 2024 · US
Energy storage device and manufacturing method of the same
US9614195B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9614195-B2 |
| Application number | US-201514673134-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 30, 2015 |
| Priority date | Mar 31, 2014 |
| Publication date | Apr 4, 2017 |
| Grant date | Apr 4, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An energy storage device including: a cylindrical case having at least one end closed; and an electrode assembly housed in the case. A reduced-diameter portion, at which an outer diameter of the case is reduced, is formed at the closed end of the case.
First claim
Opening claim text (preview).
What is claimed is: 1. An energy storage device comprising: a cylindrical case having at least one end closed; and an electrode assembly housed in the case, wherein a reduced-diameter portion, at which an outer diameter of the case is reduced, is formed at the closed end of the case, a step is formed between an outer surface of the case and the reduced-diameter portion, and a thickness of a portion at which the step is formed is more than a thickness of a side wall portion of the case. 2. The energy storage device according to claim 1 , wherein a dimension of the reduced-diameter portion in an axial direction of the case is equal to or more than a thickness of a portion forming the closed end. 3. The energy storage device according to claim 2 , wherein the case comprises a thick portion whose wall thickness increases toward the closed end, and the step is formed at an outer surface of the thick portion. 4. The energy storage device according to claim 1 , wherein the case comprises a thick portion whose wall thickness increases toward the closed end, and the step is formed at an outer surface of the thick portion. 5. A manufacturing method of an energy storage device provided with a cylindrical case having at least one end closed, the manufacturing method comprising: forming a reduced-diameter portion, at which an outer diameter of the case is reduced, at the closed end of the case; forming a step between an outer surface of the case and the reduced-diameter portion; and reducing the outer diameter of the case having the reduced-diameter portion formed thereat and housing an electrode assembly therein, wherein a thickness of a portion at which the step is formed is more than a thickness of a side wall portion of the case.
Assignees
Inventors
Classifications
- H01G11/78Primary
Cases; Housings; Encapsulations; Mountings · CPC title
having curved cross-section, e.g. round or elliptic (H01M50/103, H01M50/109, H01M50/11 take precedence) · CPC title
Electricity · mapped topic
Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations · CPC title
Energy storage using capacitors · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9614195B2 cover?
- An energy storage device including: a cylindrical case having at least one end closed; and an electrode assembly housed in the case. A reduced-diameter portion, at which an outer diameter of the case is reduced, is formed at the closed end of the case.
- Who is the assignee on this patent?
- Gs Yuasa Int Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01G11/78. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 04 2017 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).