Pouch case, pouch type secondary battery and manufacturing method thereof
US-2021098753-A1 · Apr 1, 2021 · US
Pouch-type secondary battery and method for manufacturing the same
US12068490B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12068490-B2 |
| Application number | US-202217868603-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 19, 2022 |
| Priority date | Jul 19, 2021 |
| Publication date | Aug 20, 2024 |
| Grant date | Aug 20, 2024 |
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- Title
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- Abstract
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- Assignees and inventors
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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 pouch-type secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate; and a pouch film in which the electrode assembly is accommodated, wherein the pouch film includes a first side sealing portion from which a negative electrode lead connected to the electrode assembly protrudes, a second side sealing portion from which a positive electrode lead connected to the electrode assembly protrudes, and an upper sealing portion having both end portions connected to the first and second side sealing portions, and the pouch film includes a folded portion disposed on an end of the first side sealing portion and an end of the second side sealing portion, and folded toward a bottom portion of the pouch film, wherein the folded portion is folded in one direction.
First claim
Opening claim text (preview).
What is claimed is: 1. A pouch-type secondary battery comprising: an electrode assembly including a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate; and a pouch film structured to accommodate the electrode assembly and including a first side sealing portion, a second side sealing portion, an upper sealing portion including end portions connected to the first and second side sealing portions, and a folded portion disposed on an end of the first side sealing portion and an end of the second side sealing portion, wherein a negative electrode lead connected to the electrode assembly protrudes from the first side sealing portion, and a positive electrode lead connected to the electrode assembly protrudes from the second side sealing portion, and wherein the folded portion is folded in one direction toward a bottom portion of the pouch film, wherein the folded portion comprises a pressed portion including an end having a folded shape and connected to the bottom portion of the pouch film. 2. The pouch-type secondary battery of claim 1 , wherein the upper sealing portion, the first side sealing portion and the second side sealing portion of the pouch film are located on three sides of the pouch film. 3. The pouch-type secondary battery of claim 1 , wherein the folded portion includes a first portion to be folded, wherein the first portion has a straight shape. 4. The pouch-type secondary battery of claim 1 , wherein the pouch film is folded to overlap on both sides based on one side surface of the electrode assembly, and a portion of the pouch film in contact with the one side surface of the electrode assembly forms the bottom portion of the pouch film. 5. The pouch-type secondary battery of claim 1 , wherein the folded portion includes a first portion to be folded, wherein the first portion is disposed in a central portion of the bottom portion of the pouch film.
Assignees
Inventors
Classifications
Processes for forming or storing electrodes in the battery container · CPC title
Compression means other than compression means for stacks of electrodes and separators · CPC title
- H01M50/105Primary
Pouches or flexible bags · CPC title
for pouch or flexible bag cells · CPC title
Heating or cooling; Temperature control · CPC title
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Frequently asked questions
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- What does patent US12068490B2 cover?
- A pouch-type secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate; and a pouch film in which the electrode assembly is accommodated, wherein the pouch film includes a first side sealing portion from which a negative electrode lead connected to the electrode assembly protrudes, a second side sealing portion from which a pos…
- Who is the assignee on this patent?
- Sk On Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M50/105. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 20 2024 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).