Positive active material for rechargeable lithium-sulfur batteries and method of preparing same
US6818349B2 · kind B2 · utility
4Cited by
7References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2002 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Apr 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive active material for a rechargeable lithium-sulfur battery includes a core of a sulfur compound and a surface-passivation layer formed on the core. The surface-passivation layer is made of a coating-element-included compound selected from the group consisting of a coating-element-included hydroxide, a coating-element-included oxyhydroxide, a coating-element-included oxycarbonate, a coating-element-included hydroxycarbonate, a mixture thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.