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- Title
High Energy Density Primary Lithium Battery with Fluorinated S-Doped Graphene.
- Authors
Colin, Marie; Farhat, Hani; Chen, Sam; Petit, Elodie; Flahaut, Emmanuel; Guérin, Katia; Dubois, Marc
- Abstract
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.
- Subjects
LITHIUM cells; ENERGY density; GRAPHENE; DOPING agents (Chemistry); REDUCTION potential; ELECTRIC batteries
- Publication
C, 2024, Vol 10, Issue 1, p3
- ISSN
2311-5629
- Publication type
Article
- DOI
10.3390/c10010003