Patent ID: 8232007

Claim:
A subfluorinated graphite material having an average chemical composition CFx in which 0.63≦x≦0.95, and comprising i) carbon strongly bound to fluorine and carbon weakly bound to fluorine or ii) carbon strongly bound to fluorine, carbon weakly bound to fluorine and unfluorinated carbon, wherein the relative amount of unfluorinated carbon and carbon weakly bound to fluorine is greater than or equal to 5% and less than 37% and 13 C nuclear magnetic resonance spectroscopy analysis of the subfluorinated graphite material provides a spectrum comprising a chemical shift peak centered from 130 to 150 ppm relative to TMS, a chemical shift peak centered at 84 to 89 ppm relative to TMS, and a chemical shift peak centered at 43 to 49 ppm relative to TMS.