Solid-state electrolytes for rechargeable lithium batteries
US-9209487-B2 · Dec 8, 2015 · US
Method for manufacturing positive active material for all-solid lithium-sulfur battery
US2016268600A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016268600-A1 |
| Application number | US-201514966624-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 11, 2015 |
| Priority date | Mar 13, 2015 |
| Publication date | Sep 15, 2016 |
| Grant date | — |
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Abstract
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A method for manufacturing a positive active material for an all-solid Lithium-Sulfur battery includes preparing a lithium sulfide solution by dissolving lithium sulfide in anhydrous ethanol. A mixture is prepared by mixing a carbon fiber to the lithium sulfide solution. A lithium sulfide-carbon fiber composite is prepared by drying the mixture of the carbon fiber and the lithium sulfide solution to deposit the lithium sulfide on a surface of the carbon fiber. The lithium sulfide-carbon fiber composite is heated at 400 to 600° C.
First claim
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What is claimed is: 1 . A method for manufacturing a positive active material for an all-solid Lithium-Sulfur battery, the method comprising steps of: (1) preparing a lithium sulfide (Li 2 S) solution by dissolving lithium sulfide in anhydrous ethanol; (2) preparing a mixture by mixing a carbon fiber to the lithium sulfide solution; (3) preparing a lithium sulfide-carbon fiber composite by drying the mixture of the carbon fiber and the lithium sulfide solution to deposit the lithium sulfide on a surface of the carbon fiber; and (4) heating the lithium sulfide-carbon fiber composite at 400 to 600° C. 2 . The method of claim 1 , wherein the heating in step (4) is conducted at 500° C. 3 . The method of claim 1 , wherein a size of the lithium sulfide in the lithium sulfide-carbon fiber composite after step (4) is 70 to 100 nm. 4 . The method of claim 1 , wherein the drying in step (3) is conducted in a vacuum. 5 . The method of claim 1 , further comprising a step of (5) mixing a conductive material to the lithium sulfide-carbon fiber composite. 6 . The method of claim 5 , wherein a mixing ratio of the lithium sulfide:the carbon fiber:the conductive material is 1:0.2:0.2. 7 . The method of claim 5 , wherein the conductive material includes Ketjen black, Acetylene black, Super P, and the like. 8 . The method of claim 1 , wherein the carbon fiber includes a vapor-grown carbon fiber (VGCF), a carbon nanotube (CNT), and the like.
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- What does patent US2016268600A1 cover?
- A method for manufacturing a positive active material for an all-solid Lithium-Sulfur battery includes preparing a lithium sulfide solution by dissolving lithium sulfide in anhydrous ethanol. A mixture is prepared by mixing a carbon fiber to the lithium sulfide solution. A lithium sulfide-carbon fiber composite is prepared by drying the mixture of the carbon fiber and the lithium sulfide soluti…
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Industry-Univ Coop Found Hanyang Univ
- What technology area does this patent fall under?
- Primary CPC classification H01M4/405. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Sep 15 2016 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).