![]() Although the fundamentals of the electrochemical discharging process are known, the structure of the CF x cathode during the discharge and the mechanism of the defluorination process at the molecular level that might be responsible for the electrochemical differences are not known. At the same time LiF is formed and precipitates out of the structure during the course of discharge.Įlectrochemical studies have shown significant differences between each type of CF x: prepared from carbon with a fiber morphology, hereafter referred to CF x - F or F-type prepared from petroleum coke, hereafter referred to as CF x – C or C-type and prepared from graphite, hereafter referred to as CF x – G, or G-type. The CF x is converted into elemental carbon which is more conductive than CF x thereby lowering the internal impedance, improving the voltage regulation and the efficiency. NLi + (CF x) n → nLiF + nC(Overall reaction)
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