Negative electrode and non-aqueous electrolyte secondary battery including the same
US-2019115592-A1 · Apr 18, 2019 · US
Secondary battery
US2019198827A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019198827-A1 |
| Application number | US-201816188818-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 13, 2018 |
| Priority date | Dec 21, 2017 |
| Publication date | Jun 27, 2019 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A secondary battery is provided. The secondary battery includes an electrode assembly, a case that accommodates the electrode assembly, and a protection member disposed within the case. The protection member includes a curing promoter, an adhesive, and a protective film that separates the curing promoter and the adhesive.
First claim
Opening claim text (preview).
What is claimed is: 1 . A secondary battery comprising: an electrode assembly; a case that accommodates the electrode assembly; and a protecting member disposed within the case, wherein the protecting member comprises: a curing promoter; an adhesive; and a protective film that separates the curing promoter and the adhesive. 2 . The secondary battery of claim 1 , wherein the protective film is configured to be destroyed when pressure is equal to or greater than a predetermined pressure. 3 . The secondary batter of claim 2 , wherein the predetermined pressure is about 0.5 MPa. 4 . The secondary battery of claim 2 , wherein the curing promoter and the adhesive are configured to contact and react with each other when the protective film is destroyed. 5 . The secondary battery of claim 4 , wherein a curing layer is configured to be formed inside the case when the curing promoter and the adhesive are reacted. 6 . The secondary battery of claim 2 , wherein the protective film includes one or more materials selected from the group consisting of low density polyethylene (LDPE), high density polyethylene (HDPE), oriented polypropylene (OPP), casting polypropylene (CPP), oriented nylon (ON), casting nylon (CN), and polyethylene terephthalate (PET). 7 . The secondary battery of claim 2 , wherein the protective film has a thickness of about 10 μm to 50 μm. 8 . The secondary battery of claim 1 , wherein the curing promoter includes one or more materials selected from the group consisting of a polyol, a polyether polyol, and a polyester polyol. 9 . The secondary battery of claim 1 , wherein the adhesive includes one or more materials selected from the group consisting of toluene diisocyanate (TDI), methylene diphenyl diisocyanate (MDI), hexamethylene diisocyanate (HDI), and isophorone diisocyanate (IPDI). 10 . The secondary battery of claim 1 , wherein a content ratio between the curing promoter and the adhesive is between about 30:70 and about 70:30. 11 . The secondary battery of claim 1 , wherein the protective film includes a preliminary breakage part having a thickness less than thicknesses of other portions of the protective film. 12 . The secondary battery of claim 11 , wherein the preliminary breakage part includes a line form or a dotted line form. 13 . The secondary battery of claim 1 , wherein the protective film includes a tube including a cross-linking agent therein.
Assignees
Inventors
Classifications
Fireproof; Explosion-proof · CPC title
Batteries in portable systems, e.g. mobile phone, laptop · CPC title
Pressure-sensitive devices · CPC title
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2019198827A1 cover?
- A secondary battery is provided. The secondary battery includes an electrode assembly, a case that accommodates the electrode assembly, and a protection member disposed within the case. The protection member includes a curing promoter, an adhesive, and a protective film that separates the curing promoter and the adhesive.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M2/0292. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jun 27 2019 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).