Preparation method of graphene flower and use of graphene flower in lithium sulfur battery
US11380897B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2017 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Jan 17, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed in the present disclosure is a preparation method of a graphene flower, mainly lying in spray-drying graphene oxide solution to obtain a graphene oxide flower and then performing reduction on the same to obtain a graphene flower. Also disclosed in the present disclosure is use of the graphene flower in a lithium sulfur battery. The present disclosure is easy to operate, low cost, and suitable for scaled production, can improve the rate capability of a lithium sulfur battery while ensuring the high energy ratio of the lithium sulfur battery, thus greatly improving the energy density thereof, and can be applied in the field of high energy storage material and devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.