Liquid Electrolyte Composition, and Electrochemical Cell Comprising Said Electrolyte Composition
US-2024347772-A1 · Oct 17, 2024 · US
Binder composition for non-aqueous secondary battery electrode, slurry composition for non-aqueous secondary battery electrode, electrode for non-aqueous secondary battery, and non-aqueous secondary battery
US2020235398A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020235398-A1 |
| Application number | US-201816634858-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 9, 2018 |
| Priority date | Aug 29, 2017 |
| Publication date | Jul 23, 2020 |
| Grant date | — |
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Abstract
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A binder composition for a non-aqueous secondary battery electrode contains an organic solvent and a binder that includes a polymer A including an ethylenically unsaturated acid monomer unit in a proportion of not less than 1.00 mass % and not more than 10.00 mass %. The polymer A has a viscosity of 10,000 mPa·s or less at a shear rate of 0.1 s−1 when mixed with the organic solvent in a concentration of 8 mass % to obtain a mixture.
First claim
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1 . A binder composition for a non-aqueous secondary battery electrode comprising a binder and an organic solvent, wherein the binder includes a polymer A, the polymer A includes an ethylenically unsaturated acid monomer unit in a proportion of not less than 1.00 mass % and not more than 10.00 mass %, and the polymer A has a viscosity of 10,000 mPa·s or less at a shear rate of 0.1 s −1 when mixed with the organic solvent in a concentration of 8 mass % to obtain a mixture. 2 . The binder composition for a non-aqueous secondary battery electrode according to claim 1 , wherein the polymer A includes a cross-linkable monomer unit in a proportion of not less than 0.01 mass % and not more than 5.00 mass %. 3 . The binder composition for a non-aqueous secondary battery electrode according to claim 1 , wherein the polymer A includes a (meth)acrylic acid ester monomer unit in a proportion of not less than 30.00 mass % and not more than 98.00 mass %. 4 . The binder composition for a non-aqueous secondary battery electrode according to claim 1 , wherein insoluble content of the polymer A when the polymer A is mixed with N-methyl-2-pyrrolidone in a concentration of 8 mass % is not less than 70 mass % and not more than 100 mass %. 5 . The binder composition for a non-aqueous secondary battery electrode according to claim 1 , wherein the polymer A has a volume-average particle diameter of not less than 100 nm and not more than 1,000 nm. 6 . The binder composition for a non-aqueous secondary battery electrode according to claim 1 , wherein the binder further includes a polymer B, and the polymer B has a viscosity of not less than 10 mPa·s and not more than 10,000 mPa·s at a shear rate of 10 s −1 when dissolved in the organic solvent in a concentration of 8 mass % to obtain a solution. 7 . The binder composition for a non-aqueous secondary battery electrode according to claim 6 , wherein insoluble content of the polymer B when the polymer B is mixed with N-methyl-2-pyrrolidone in a concentration of 8 mass % is 50 mass % or less. 8 . A slurry composition for a non-aqueous secondary battery electrode comprising an electrode active material and the binder composition for a non-aqueous secondary battery electrode according to claim 1 . 9 . An electrode for a non-aqueous secondary battery comprising an electrode mixed material layer formed using the slurry composition for a non-aqueous secondary battery electrode according to claim 8 . 10 . A non-aqueous secondary battery comprising the electrode for a non-aqueous secondary battery according to claim 9 .
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Classifications
Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy · CPC title
characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity (liquid crystal materials or compositions C09K19/00) · CPC title
Acrylonitrile · CPC title
Energy storage using batteries · CPC title
of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title
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- What does patent US2020235398A1 cover?
- A binder composition for a non-aqueous secondary battery electrode contains an organic solvent and a binder that includes a polymer A including an ethylenically unsaturated acid monomer unit in a proportion of not less than 1.00 mass % and not more than 10.00 mass %. The polymer A has a viscosity of 10,000 mPa·s or less at a shear rate of 0.1 s−1 when mixed with the organic solvent in a concent…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jul 23 2020 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).