Nanosheet composite for cathode of lithium-sulfur battery, preparation method thereof and electrode and battery comprising the same
US11335900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2018 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Jun 19, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composite nanosheet for the cathode of a lithium-sulfur battery, a preparation method thereof, and an electrode and a battery having the same. The composite nanosheet includes carbon nanotubes which are closely accumulated in a two-dimensional plane and are combined together by carbon derived from nanocellulose. Transition metal compound nanoparticles which are uniformly distributed in the nanosheet composite and are fixed by the carbon derived from nanocellulose. Sulfur adsorbed on the surface of the transition metal compound nanoparticles. The composite organically combines and exerts the respective advantages of porous carbon, carbon nanotubes and nano metal oxides/sulfide by designing and constructing the structure of the cathode material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.