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Binder composition for electrochemical device electrode, slurry composition for electrochemical device electrode, electrochemical device electrode, and electrochemical device
US11046797B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11046797-B2 |
| Application number | US-201716082677-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 24, 2017 |
| Priority date | Mar 28, 2016 |
| Publication date | Jun 29, 2021 |
| Grant date | Jun 29, 2021 |
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- Title
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Abstract
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A disclosed binder composition comprises a copolymer which comprises a nitrile group-containing monomer unit, an acidic group-containing monomer unit and a basic group-containing monomer unit, wherein the proportion of the nitrile group-containing monomer unit in the copolymer is 70.0 mol % or more and 99.0 mol % or less, and wherein the total proportion of the acidic group-containing monomer unit and the basic group-containing monomer unit in the copolymer is 0.8 mol % or more and 10.0 mol % or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A binder composition for electrochemical device electrode comprising a copolymer, wherein the copolymer comprises a nitrile group-containing monomer unit, an acidic group-containing monomer unit, a basic group-containing monomer unit and a monofunctional ethylenically unsaturated carboxylic acid ester monomer unit, wherein the proportion of the nitrile group-containing monomer unit in the copolymer is 70.0 mol % or more and 99.0 mol % or less, and wherein the total proportion of the acidic group-containing monomer unit and the basic group-containing monomer unit in the copolymer is 0.8 mol % or more and 10.0 mol % or less, the basic group-containing monomer unit is at least one of an amino group-containing monomer unit and an amide group-containing monomer unit, the ratio by mole of the proportion of the basic group-containing monomer unit to the proportion of the acidic group-containing monomer unit in the copolymer is 0.1 or more and 2.0 or less, and the proportion of the monofunctional ethylenically unsaturated carboxylic acid ester monomer unit in the copolymer is 0.2 mol % or more and 20.0 mol % or less. 2. The binder composition for electrochemical device electrode according to claim 1 , wherein the acidic group-containing monomer unit is at least one monomer unit selected from the group consisting of a carboxylic acid group-containing monomer unit, a sulfonate group-containing monomer unit, and a phosphate group-containing monomer unit. 3. A slurry composition for electrochemical device electrode comprising the binder composition for electrochemical device electrode according to claim 1 , and an electrode active material. 4. An electrochemical device electrode comprising an electrode mixed material layer formed using the slurry composition for electrochemical device electrode according to claim 3 . 5. An electrochemical device comprising the electrochemical device electrode according to claim 4 .
Assignees
Inventors
Classifications
Acrylonitrile · CPC title
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title
- H01M4/139Primary
Processes of manufacture · CPC title
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title
- H01M4/622Primary
being polymers · CPC title
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- What does patent US11046797B2 cover?
- A disclosed binder composition comprises a copolymer which comprises a nitrile group-containing monomer unit, an acidic group-containing monomer unit and a basic group-containing monomer unit, wherein the proportion of the nitrile group-containing monomer unit in the copolymer is 70.0 mol % or more and 99.0 mol % or less, and wherein the total proportion of the acidic group-containing monomer u…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M4/139. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 29 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).