Binder composition for all-solid-state battery, slurry composition for all-solid-state battery, electrode for all-solid-state battery, and all-solid-state battery
US-2019229339-A1 · Jul 25, 2019 · US
Binder composition for all-solid-state secondary battery, slurry composition for all-solid-state secondary battery electrode mixed material layer, slurry composition for all-solid-state secondary battery solid electrolyte layer, and all-solid-state secondary battery
US11967719B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11967719-B2 |
| Application number | US-201917268957-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 22, 2019 |
| Priority date | Aug 31, 2018 |
| Publication date | Apr 23, 2024 |
| Grant date | Apr 23, 2024 |
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Abstract
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Provided is a binder composition for an all-solid-state secondary battery with which it is possible to form a solid electrolyte-containing layer that can cause an all-solid-state secondary battery to display excellent output characteristics and high-temperature cycle characteristics. The binder composition contains a polymer A that includes a nitrile group-containing monomer unit and an aliphatic conjugated diene monomer unit. The proportional content of the nitrile group-containing monomer unit in the polymer A is not less than 5 mass % and not more than 30 mass %, and the proportional content of the aliphatic conjugated diene monomer unit in the polymer A is not less than 40 mass % and not more than 95 mass %. The polymer A has a Mooney viscosity (ML1+4, 100° C.) of 65 or more.
First claim
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The invention claimed is: 1. A binder composition for an all-solid-state secondary battery comprising a polymer A, wherein the polymer A includes a nitrile group-containing monomer unit and an aliphatic conjugated diene monomer unit, with proportional content of the nitrile group-containing monomer unit in the polymer A being not less than 5 mass % and not more than 30 mass %, and proportional content of the aliphatic conjugated diene monomer unit in the polymer A being not less than 40 mass % and not more than 95 mass %, the polymer A has an iodine value of 250 mg/100 mg or more, and the polymer A has a Mooney viscosity (ML 1+4 , 100° C.) of 65 or more. 2. The binder composition for an all-solid-state secondary battery according to claim 1 , wherein proportional content of an ethylenically unsaturated carboxylic acid ester monomer unit in the polymer A is not less than 0 mass % and not more than 50 mass %. 3. The binder composition for an all-solid-state secondary battery according to claim 1 , further comprising a solvent, wherein the solvent includes either or both of xylene and butyl butyrate. 4. A slurry composition for an all-solid-state secondary battery electrode mixed material layer comprising: a solid electrolyte; an electrode active material; and the binder composition for an all-solid-state secondary battery according to claim 1 . 5. The slurry composition for an all-solid-state secondary battery electrode mixed material layer according to claim 4 , wherein the solid electrolyte is an amorphous sulfide containing Li and P. 6. The slurry composition for an all-solid-state secondary battery electrode mixed material layer according to claim 4 , wherein the solid electrolyte is sulfide glass formed of Li 2 S and P 2 S 5 . 7. A slurry composition for an all-solid-state secondary battery solid electrolyte layer comprising: a solid electrolyte; and the binder composition for an all-solid-state secondary battery according to claim 1 . 8. The slurry composition for an all-solid-state secondary battery solid electrolyte layer according to claim 7 , wherein the solid electrolyte is an amorphous sulfide containing Li and P. 9. The slurry composition for an all-solid-state secondary battery solid electrolyte layer according to claim 7 , wherein the solid electrolyte is sulfide glass formed of Li 2 S and P 2 S 5 . 10. An all-solid-state secondary battery comprising an electrode including an electrode mixed material layer formed using the slurry composition for an all-solid-state secondary battery electrode mixed material layer according to claim 4 . 11. An all-solid-state secondary battery comprising a solid electrolyte layer formed using the slurry composition for an all-solid-state secondary battery solid electrolyte layer according to claim 7 .
Assignees
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Classifications
Energy storage using batteries · CPC title
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title
Li-accumulators · CPC title
- H01M4/622Primary
being polymers · CPC title
Solid materials · CPC title
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- What does patent US11967719B2 cover?
- Provided is a binder composition for an all-solid-state secondary battery with which it is possible to form a solid electrolyte-containing layer that can cause an all-solid-state secondary battery to display excellent output characteristics and high-temperature cycle characteristics. The binder composition contains a polymer A that includes a nitrile group-containing monomer unit and an aliphat…
- 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 Apr 23 2024 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).