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Fibrous separation membrane for secondary battery and manufacturing method thereof
US8968909B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8968909-B2 |
| Application number | US-201113160849-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 15, 2011 |
| Priority date | Mar 28, 2011 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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Disclosed herein is a fibrous separation membrane for secondary batteries, comprising: a polymer layer which partially melts and blocks pores thereof thus cutting off electric current when a temperature of a secondary battery is increased; and heat-resistant resin layers applied on both sides of the polymer layer.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of manufacturing a fibrous separation membrane for secondary batteries, comprising: applying a low-melting polymer solution to a first barrel of an electrospinning apparatus including a first barrel for storing the low-melting polymer solution composing the polymer layer, a second barrel for storing a heat-resistant resin solution, a proportioning pump for discharging the low-melting polymer solution or heat-resistant resin solution, and a spinning…
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Electricity · 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 US8968909B2 cover?
- Disclosed herein is a fibrous separation membrane for secondary batteries, comprising: a polymer layer which partially melts and blocks pores thereof thus cutting off electric current when a temperature of a secondary battery is increased; and heat-resistant resin layers applied on both sides of the polymer layer.
- Who is the assignee on this patent?
- Kim Sun Ok, Yoo Young Seuck, Na Jin Wook, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01M50/414. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 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).