Discharge characteristics of graphite fluoride prepared via graphite oxide

✍ Scribed by T. Nakajima; R. Hagiwara; K. Moriya; N. Watanabe

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 380 KB
• Volume: 20
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(87)80096-4

✦ Synopsis

The discharge performance of graphite fluoride, prepared by fluorinating residual carbon from the thermal decomposition of graphite oxide, has been evaluated. In most cases, the graphite fluoride was (CF),. That prepared from flaky natural graphite gave a higher OCV and discharge potential than (C,F), prepared by direct fluorination; the overpotential was similar. The energy density increased by 20 -30%. In the case of (CF), prepared from graphitized petroleum coke, a large over-potential, which commonly appears at the beginning of discharge, was not observed, and the discharge potential gradually decreased with the progress of the discharge reaction.