Electrode and preparation method thereof, electrochemical apparatus, and electronic apparatus
US-2024297307-A1 · Sep 5, 2024 · US
Method for producing organo-sulfur electrode active material
US11223045B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11223045-B2 |
| Application number | US-201816756580-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 30, 2018 |
| Priority date | Oct 31, 2017 |
| Publication date | Jan 11, 2022 |
| Grant date | Jan 11, 2022 |
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- Title
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Abstract
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Disclosed is a sulfur-based electrode active material with which a nonaqueous electrolyte secondary battery that has a large capacity and exhibits less deterioration of the cycle characteristics can be obtained even when an electrode is employed in which the sulfur-based electrode active material is used as an electrode active material and an aluminum foil is used as a current collector. Also disclosed is a method for producing an organosulfur electrode active material, including a step of obtaining an organosulfur compound by heat-treating an organic compound and sulfur and a step of treating the organosulfur compound with a basic compound. The organosulfur compound is preferably sulfur-modified polyacrylonitrile, and the basic compound is preferably ammonia. The organosulfur compound may be treated with the basic compound after the organosulfur compound is ground, or may be ground in a medium that contains the basic compound.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing an organosulfur electrode active material, the method comprising: a step of obtaining an organosulfur compound by heat-treating an organic compound and sulfur; and a step of treating the organosulfur compound with a basic compound. 2. The method for producing an organosulfur electrode active material according to claim 1 , wherein the organosulfur compound is treated with the basic compound after the organosulfur compound is ground. 3. The method for producing an organosulfur electrode active material according to claim 1 , wherein the organosulfur compound is ground in a medium that contains the basic compound. 4. The method for producing an organosulfur electrode active material according to claim 1 , wherein the organosulfur compound is sulfur-modified polyacrylonitrile. 5. The method for producing an organosulfur electrode active material according to claim 1 , wherein the basic compound is ammonia. 6. A method for producing a secondary battery electrode, the method comprising the method for producing an organosulfur electrode active material according to claim 1 . 7. The method for producing a secondary battery electrode according to claim 6 , comprising: a step of applying the organosulfur electrode active material to a current collector formed of an aluminum foil. 8. An electrode comprising an organosulfur electrode active material that is produced using the method for producing an organosulfur electrode active material according to claim 1 . 9. The electrode according to claim 8 , comprising an aluminum foil as a current collector. 10. The method for producing an organosulfur electrode active material according to claim 2 , wherein the organosulfur compound is sulfur-modified polyacrylonitrile. 11. The method for producing an organosulfur electrode active material according to claim 3 , wherein the organosulfur compound is sulfur-modified polyacrylonitrile. 12. The method for producing an organosulfur electrode active material according to claim 2 , wherein the basic compound is ammonia. 13. The method for producing an organosulfur electrode active material according to claim 3 , wherein the basic compound is ammonia. 14. The method for producing an organosulfur electrode active material according to claim 4 , wherein the basic compound is ammonia. 15. A method for producing a secondary battery electrode, the method comprising the method for producing an organosulfur electrode active material according to claim 2 . 16. A method for producing a secondary battery electrode, the method comprising the method for producing an organosulfur electrode active material according to claim 3 . 17. A method for producing a secondary battery electrode, the method comprising the method for producing an organosulfur electrode active material according to claim 4 . 18. A method for producing a secondary battery electrode, the method comprising the method for producing an organosulfur electrode active material according to claim 5 . 19. An electrode comprising an organosulfur electrode active material that is produced using the method for producing an organosulfur electrode active material according to claim 2 . 20. An electrode comprising an organosulfur electrode active material that is produced using the method for producing an organosulfur electrode active material according to claim 3 .
Assignees
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Classifications
Energy storage using batteries · CPC title
of elements or alloys · CPC title
Electrodes based on electro-active polymers · CPC title
- H01M4/602Primary
Polymers · CPC title
- H01M4/0404Primary
by coating on electrode collectors · CPC title
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Frequently asked questions
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- What does patent US11223045B2 cover?
- Disclosed is a sulfur-based electrode active material with which a nonaqueous electrolyte secondary battery that has a large capacity and exhibits less deterioration of the cycle characteristics can be obtained even when an electrode is employed in which the sulfur-based electrode active material is used as an electrode active material and an aluminum foil is used as a current collector. Also d…
- Who is the assignee on this patent?
- Adeka Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M4/602. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 11 2022 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).