| Autor: |
Marie Colin, Hani Farhat, Sam Chen, Elodie Petit, Emmanuel Flahaut, Katia Guérin, Marc Dubois |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
C, Vol 10, Iss 1, p 3 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2311-5629 |
| DOI: |
10.3390/c10010003 |
| Popis: |
Sulphur-doped graphene was fluorinated using molecular fluorine (F2). First, the fluorination conditions were adapted in order to be mild enough to maintain S in the carbon lattice and form S-F bonds. An unusually weakened C-F bonding for an F/C ratio of 0.71 was then achieved, which allowed enhanced performances when used as a cathode in primary lithium batteries. The material prepared at a moderate fluorination temperature of 70 °C for a period of 60 min exhibits a high mid-discharge reduction potential of 3.11 V at 10 mA/g and a power density of 3605 W/kg at a discharge rate of 2C. These electrochemical properties make the fluorine/sulfur co-doped graphene a promising material. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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