Case including insulating layer for secondary batteries and lithium secondary battery including the same
US-2017155102-A1 · Jun 1, 2017 · US
Secondary battery having a case including a liquid-phase short-circuit prevention layer
US11024909B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11024909-B2 |
| Application number | US-201715750665-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 22, 2017 |
| Priority date | Sep 13, 2016 |
| Publication date | Jun 1, 2021 |
| Grant date | Jun 1, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Also, the secondary battery includes a case accommodating an electrolyte and an electrode assembly therein, and the case includes an external layer exposed to the outside, an internal layer disposed in the case, and a short-circuit prevention layer provided in a liquid phase between the external layer and the internal layer.
First claim
Opening claim text (preview).
The invention claimed is: 1. A secondary battery comprising: a case accommodating an electrolyte and an electrode assembly therein, wherein the case comprises: an external layer exposed to the outside and made of polyethylene terephthalate (PET); an internal layer disposed in the case and made of polypropylene (PP); an oil layer containing an oil provided in a liquid phase between the external layer and the internal layer; an aluminum layer disposed between the external layer and the oil layer; and an adhesion layer disposed between the aluminum layer and the external layer and provided as an adhesion member that allows the aluminum layer to adhere to the external layer, wherein the oil directly contacts the internal layer and the aluminum layer. 2. The secondary battery of claim 1 , wherein the oil comprises an insulation oil.
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Classifications
Composite material consisting of a mixture of organic and inorganic materials · CPC title
Metals · CPC title
Organic material · CPC title
- H01M50/124Primary
having a layered structure · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
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Frequently asked questions
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- What does patent US11024909B2 cover?
- Also, the secondary battery includes a case accommodating an electrolyte and an electrode assembly therein, and the case includes an external layer exposed to the outside, an internal layer disposed in the case, and a short-circuit prevention layer provided in a liquid phase between the external layer and the internal layer.
- 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 Jun 01 2021 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).