Method for Manufacturing Secondary Battery and Pouch for Secondary Battery
US-2024379990-A1 · Nov 14, 2024 · US
Battery case for secondary battery
US9716253B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9716253-B2 |
| Application number | US-201414315023-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 25, 2014 |
| Priority date | Mar 23, 2012 |
| Publication date | Jul 25, 2017 |
| Grant date | Jul 25, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Disclosed herein is a battery case including a receiving part having an electrode assembly mounted therein, wherein the receiving part, which is formed by deforming a sheet type base material, is configured to have a stair-like structure in which at least one corner and/or surface forming a shape of the receiving part is deformed.
First claim
Opening claim text (preview).
The invention claimed is: 1. A battery case comprising a receiving part having an electrode assembly mounted therein, wherein the receiving part, which is formed by deforming a sheet type base material, is configured to have a stair structure in which at least one corner or surface forming a shape of the receiving part is deformed, wherein the receiving part has a side wall configured to have the stair structure, the stair structure comprising two or more steps, the steps forming right angles in cross-section, and the steps have heights gradually decreased in a depth direction of the receiving part. 2. The battery case according to claim 1 , wherein the base material is formed of a laminate sheet comprising a resin layer and a metal layer. 3. The battery case according to claim 2 , wherein the base material comprises an upper layer of a first polymer resin, an intermediate layer of a blocking metal, and a lower layer of a second polymer resin. 4. The battery case according to claim 1 , wherein the base material has a thickness of 0.3 mm to 6 mm. 5. The battery case according to claim 1 , wherein, when the stair structure comprises n steps, an n-th step is located at a lowermost end of the stair structure in the depth direction of the receiving part, an (n−1)-th step is located at a top of the n-th step, and the n-th step has a smaller height than the (n−1)-th step. 6. The battery case according to claim 5 , wherein the height of the n-th step is equivalent to 50 to 90% of that of the (n−1)-th step. 7. The battery case according to claim 5 , wherein a thickness of the side wall of the receiving part at the n-th step is equivalent to 90 to 99% of that of the side wall of the receiving part at the (n−1)-th step.
Assignees
Inventors
Classifications
- H01M50/124Primary
having a layered structure · CPC title
Pouches or flexible bags · CPC title
comprising three or more layers · CPC title
Metals · CPC title
Organic material · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9716253B2 cover?
- Disclosed herein is a battery case including a receiving part having an electrode assembly mounted therein, wherein the receiving part, which is formed by deforming a sheet type base material, is configured to have a stair-like structure in which at least one corner and/or surface forming a shape of the receiving part is deformed.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M50/124. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 25 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).