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Binder composition for non-aqueous secondary battery, composition for non-aqueous secondary battery functional layer, functional layer for non-aqueous secondary battery, and non-aqueous secondary battery
US2018233728A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018233728-A1 |
| Application number | US-201615750949-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 18, 2016 |
| Priority date | Aug 20, 2015 |
| Publication date | Aug 16, 2018 |
| Grant date | — |
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Abstract
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Provided is a binder composition for a non-aqueous secondary battery that enables formation of a functional layer and an electrode mixed material layer having high transition metal capturing ability. The binder composition for a non-aqueous secondary battery contains a water-soluble polymer and water. The water-soluble polymer includes a sulfonate group-containing monomer unit in a proportion of at least 10 mass % and not more than 50 mass % and a (meth)acrylonitrile monomer unit in a proportion of 20 mass % or more.
First claim
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1 . A binder composition for a non-aqueous secondary battery comprising a water-soluble polymer and water, wherein the water-soluble polymer includes a sulfonate group-containing monomer unit in a proportion of at least 10 mass % and not more than 50 mass % and a (meth)acrylonitrile monomer unit in a proportion of 20 mass % or more. 2 . The binder composition for a non-aqueous secondary battery according to claim 1 , wherein the water-soluble polymer has a degree of swelling in non-aqueous electrolysis solution of at least a factor of 2 and not more than a factor of 5. 3 . The binder composition for a non-aqueous secondary battery according to claim 1 , further comprising a particulate polymer. 4 . A composition for a non-aqueous secondary battery functional layer comprising: the binder composition for a non-aqueous secondary battery according to claim 1 ; and non-conductive particles. 5 . The composition for a non-aqueous secondary battery functional layer according to claim 4 , wherein the water-soluble polymer is contained in a proportion of at least 1 part by mass and not more than 10 parts by mass per 100 parts by mass of the non-conductive particles. 6 . A functional layer for a non-aqueous secondary battery formed using the composition for a non-aqueous secondary battery functional layer according to claim 5 . 7 . A non-aqueous secondary battery comprising the functional layer for a non-aqueous secondary battery according to claim 6 .
Assignees
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Classifications
- C08F228/02Primary
by a bond to sulfur · CPC title
- H01M4/622Primary
being polymers · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a bond to sulfur or by a heterocyclic ring containing sulfur; Compositions of derivatives of such polymers · 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
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- What does patent US2018233728A1 cover?
- Provided is a binder composition for a non-aqueous secondary battery that enables formation of a functional layer and an electrode mixed material layer having high transition metal capturing ability. The binder composition for a non-aqueous secondary battery contains a water-soluble polymer and water. The water-soluble polymer includes a sulfonate group-containing monomer unit in a proportion o…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08F228/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Aug 16 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).