Sulfur-carbon composite manufacturing method, sulfur-carbon composite manufactured thereby, cathode comprising same sulfur-carbon composite, and lithium secondary battery comprising same cathode
US11362325B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2019 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Sep 17, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Discussed is a method for preparing a sulfur-carbon composite including the steps of: (a) mixing a carbon-based material with sulfur or a sulfur compound to prepare a sulfur-carbon mixture; (b) placing the sulfur-carbon mixture mixed in step (a) and a liquid which is vaporizable into a sealable container; and (c) heating the sealed container to a temperature of 120 to 200° C. to vaporize the liquid and prepare the sulfur-carbon composite. Also discussed is a positive electrode for a lithium secondary battery including the sulfur-carbon composite prepared by the above method, and a lithium secondary battery including the above positive electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.