Polyimide-based binder for power storage device, electrode mixture paste, negative electrode active material layer, negative electrode sheet for power storage device, and power storage device
US-12176543-B2 · Dec 24, 2024 · US
Cathode of all-solid-state lithium ion battery and all-solid-state lithium ion battery including the same
US10290872B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10290872-B2 |
| Application number | US-201514957517-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2015 |
| Priority date | Apr 30, 2015 |
| Publication date | May 14, 2019 |
| Grant date | May 14, 2019 |
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- Title
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Abstract
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A cathode of an all-solid-state lithium ion battery is prepared by applying a slurry, in which an active material, a conductive material, a sulfide-based solid electrolyte, and a binder are mixed, to a substrate. The binder is a hydrogenated nitrile butadiene rubber (HNBR) having a residual double bond, an amount thereof is more than 0% and equal to or less than 5.5%.
First claim
Opening claim text (preview).
What is claimed is: 1. A cathode of an all-solid-state lithium ion battery prepared by applying a slurry, in which an active material, a conductive material, a sulfide-based solid electrolyte, and a binder are mixed, to a substrate, wherein the binder is a hydrogenated nitrile butadiene rubber (HNBR) having a residual double bond, an amount thereof is more than 0% and equal to or less than 5.5% based on a total amount of the HNBR. 2. The cathode of claim 1 , wherein the amount of the residual double bond is more than 0% and equal to or less than 0.9%. 3. The cathode of claim 1 , wherein the slurry further comprises a solvent which dissolves the binder, and the solvent includes a mixture of cyclopentyl methyl ether (CPME) and a ketone-based solvent. 4. The cathode of claim 3 , wherein the ketone-based solvent is acetone or methyl ethyl ketone (MEK). 5. The cathode of claim 3 , wherein the CPME and the ketone-based solvent are mixed at a weight ratio of 9:1 to 8:2. 6. The cathode of claim 3 , wherein the HNBR has a nitrile content of 20 mol % to 30 mol % based on the total amount of the HNBR. 7. The cathode of claim 6 , wherein an amount of the residual double bond is 5.5% and the nitrile content is 20%. 8. The cathode of claim 6 , wherein the amount of the residual double bond is 0.9% and the nitrile content is 20%. 9. The cathode of claim 1 , wherein the slurry further comprises a solvent which dissolves the binder, and the solvent includes a mixture of xylene and a ketone-based solvent. 10. The cathode of claim 1 , wherein the slurry further comprises a solvent which dissolves the binder, and the solvent includes a mixture of heptane and a ketone-based solvent. 11. An all-solid-state lithium ion battery comprising a cathode, wherein the cathode is prepared by applying a slurry, in which an active material, a conductive material, a sulfide-based solid electrolyte, and a binder are mixed, to a substrate, and wherein the binder is a hydrogenated nitrile butadiene rubber (HNBR) having a residual double bond, an amount thereof is more than 0% and equal to or less than 5.5% based on a total amount of the HNBR.
Assignees
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Classifications
Carbon or graphite · CPC title
Li-accumulators · CPC title
Cross-Sectional Technologies · mapped topic
Batteries in motive systems, e.g. vehicle, ship, plane · CPC title
of elements or alloys · CPC title
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Frequently asked questions
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- What does patent US10290872B2 cover?
- A cathode of an all-solid-state lithium ion battery is prepared by applying a slurry, in which an active material, a conductive material, a sulfide-based solid electrolyte, and a binder are mixed, to a substrate. The binder is a hydrogenated nitrile butadiene rubber (HNBR) having a residual double bond, an amount thereof is more than 0% and equal to or less than 5.5%.
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd
- 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 May 14 2019 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).