Secondary-battery porous membrane composition, secondary-battery porous membrane and secondary battery
US-2016344007-A1 · Nov 24, 2016 · US
Composition for non-aqueous secondary battery functional layer, functional layer for non-aqueous secondary battery, and non-aqueous secondary battery
US10454084B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10454084-B2 |
| Application number | US-201615745831-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 21, 2016 |
| Priority date | Aug 11, 2015 |
| Publication date | Oct 22, 2019 |
| Grant date | Oct 22, 2019 |
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- Title
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Abstract
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Provided is a composition for a non-aqueous secondary battery functional layer that has excellent redispersibility of non-conductive particles and enables formation of a functional layer for a non-aqueous secondary battery having excellent flexibility. Also provided are a functional layer for a non-aqueous secondary battery formed using this composition for a non-aqueous secondary battery functional layer and a non-aqueous secondary battery including this functional layer for a non-aqueous secondary battery. The composition for a non-aqueous secondary battery functional layer contains non-conductive particles, a water-soluble polymer that includes a (meth)acrylamide monomer unit in a proportion of 40 mass % or more and has a weight average molecular weight of less than 3.0×10 5 , and a particulate polymer.
First claim
Opening claim text (preview).
The invention claimed is: 1. A composition for a non-aqueous secondary battery functional layer comprising: non-conductive particles; a water-soluble polymer including a (meth)acrylamide monomer unit in a proportion of 40 mass % or more and having a weight average molecular weight of 5.0×10 3 or more and less than 3.0×10 5 ; and a particulate polymer. 2. The composition for a non-aqueous secondary battery functional layer according to claim 1 , wherein the water-soluble polymer is contained in a proportion of at least 0.1 parts by mass and not more than 10 parts by mass per 100 parts by mass of the non-conductive particles. 3. A functional layer for a non-aqueous secondary battery formed using the composition for a non-aqueous secondary battery functional layer according to claim 1 . 4. A non-aqueous secondary battery comprising the functional layer for a non-aqueous secondary battery according to claim 3 . 5. A functional layer for a non-aqueous secondary battery formed using the composition for a non-aqueous secondary battery functional layer according to claim 2 . 6. A non-aqueous secondary battery comprising the functional layer for a non-aqueous secondary battery according to claim 5 . 7. The composition for a non-aqueous secondary battery functional layer according to claim 1 , wherein the water-soluble polymer includes the (meth)acrylamide monomer unit in a proportion of 40 mass % or more and 99 mass % or less.
Assignees
Inventors
Classifications
- H01M4/13Primary
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure · CPC title
Homopolymers or copolymers of acrylamide or methacrylamide · CPC title
Mixtures comprising a continuous polymer matrix in which are dispersed crosslinked particles of another polymer · CPC title
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- What does patent US10454084B2 cover?
- Provided is a composition for a non-aqueous secondary battery functional layer that has excellent redispersibility of non-conductive particles and enables formation of a functional layer for a non-aqueous secondary battery having excellent flexibility. Also provided are a functional layer for a non-aqueous secondary battery formed using this composition for a non-aqueous secondary battery funct…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M4/13. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 22 2019 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).