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US-12140831-B2 · Nov 12, 2024 · US
Polyolefin microporous membrane and method of producing the same, separator for non-aqueous secondary battery and non-aqueous secondary battery
US9178202B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9178202-B2 |
| Application number | US-201514680652-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 7, 2015 |
| Priority date | Mar 24, 2010 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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- Title
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Abstract
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The present invention provides a polyolefin microporous membrane in which a degree of crystallinity is from 60 to 85%, and a tie molecular volume fraction is from 0.7 to 1.7%.
First claim
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What is claimed is: 1. A separator for a non-aqueous secondary battery, the separator comprising: a polyolefin microporous membrane. wherein a degree of crystallinity is from 60 to 85%, and a tie molecular volume fraction is from 0.7 to 1.7%; and an adhesive porous layer containing vinylidene fluoride resin provided on one side or both sides of the polyolefin microporous membrane. 2. The separator for a non-aqueous secondary battery according to claim 1 ,…
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- B32B27/34Primary
Operations & Transport · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9178202B2 cover?
- The present invention provides a polyolefin microporous membrane in which a degree of crystallinity is from 60 to 85%, and a tie molecular volume fraction is from 0.7 to 1.7%.
- Who is the assignee on this patent?
- Teijin Ltd
- What technology area does this patent fall under?
- Primary CPC classification B32B27/34. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 03 2015 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).