Nitrile group-containing highly saturated copolymer rubber composition and cross-linked rubber
US-2016297955-A1 · Oct 13, 2016 · US
Binder composition for secondary battery electrode, slurry composition for secondary battery electrode, electrode for secondary battery, and secondary battery
US10964947B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10964947-B2 |
| Application number | US-201615736045-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 28, 2016 |
| Priority date | Jun 29, 2015 |
| Publication date | Mar 30, 2021 |
| Grant date | Mar 30, 2021 |
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- Title
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Abstract
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Provided is a binder composition for a secondary battery electrode that, when used in production of a slurry composition for a secondary battery electrode, enables favorable dispersion of an electrode active material and a conductive material in high concentration while ensuring coatability. The binder composition for a secondary battery electrode contains a binder. The binder includes a copolymer that includes an alkylene structural unit and a nitrile group-containing monomer unit, and that has a Mooney viscosity (ML 1+4 , 100° C.) of at least 50 and not more than 200.
First claim
Opening claim text (preview).
The invention claimed is: 1. A binder composition for a secondary battery electrode comprising a binder and an organic solvent, wherein the binder includes a copolymer in a proportion of 60 mass % or more, the copolymer includes an alkylene structural unit and a nitrile group-containing monomer unit, and the copolymer has a Mooney viscosity ML 1+4 of at least 110 and not more than 200 as measured in accordance with JIS K 6300-1 at a temperature of 100° C. 2. The binder composition for a secondary battery electrode according to claim 1 , wherein the copolymer includes the alkylene structural unit in a proportion of at least 40 mass % and not more than 80 mass %. 3. The binder composition for a secondary battery electrode according to claim 1 , wherein the copolymer includes the nitrile group-containing monomer unit in a proportion of at least 10 mass % and not more than 55 mass %. 4. The binder composition for a secondary battery electrode according to claim 1 , wherein a proportion constituted by a hydrophilic group-containing monomer unit among all repeating units in the copolymer is 0 mass % or more and less than 0.05 mass %. 5. A slurry composition for a secondary battery electrode comprising: an electrode active material; a conductive material; and the binder composition for a secondary battery electrode according to claim 1 . 6. The slurry composition for a secondary battery electrode according to claim 5 , wherein the electrode active material includes a Ni-containing active material. 7. An electrode for a secondary battery comprising an electrode mixed material layer formed using the slurry composition for a secondary battery electrode according to claim 5 . 8. A secondary battery comprising the electrode for a secondary battery according to claim 7 . 9. The binder composition for a secondary battery electrode according to claim 1 , wherein the copolymer does not include a (meth)acrylic acid ester monomer unit and a hydrophilic group-containing monomer unit.
Assignees
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Classifications
Reduction, e.g. hydrogenation · CPC title
Nitriles · CPC title
Homopolymers or copolymers of nitriles · CPC title
Use of inorganic substances as compounding ingredients · CPC title
of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
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- What does patent US10964947B2 cover?
- Provided is a binder composition for a secondary battery electrode that, when used in production of a slurry composition for a secondary battery electrode, enables favorable dispersion of an electrode active material and a conductive material in high concentration while ensuring coatability. The binder composition for a secondary battery electrode contains a binder. The binder includes a copoly…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M4/622. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 30 2021 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).