Prospects for Using C60 and C70 in Lithium Batteries

Solid films of C60 and C70 fullerenes are evaluated in propylene carbonate/lithium perchlorate, an electrolyte commonly used in lithium batteries. Cyclic voltammetry, chronopotentiometry, and an effusion test, show that reduced C60 and C70 are soluble in the electrolyte tested, which, coupled with poor stability of the highly reduced material and poor electrochemical reversibility, would compromise the performance of secondary batteries based on these fullerenes.