LITHIUM SECONDARY BATTERY BASED ON INTERCALATION IN CARBON-FIBERS AS NEGATIVE ELECTRODE

Lithium secondary batteries using carbon as negative electrode with in tercalated Li have been developed. Various kinds of carbon fibers with different crystallographic and macroscopic structure are applied as a negative electrode for the lithium secondary batteries with 1 mol LiC lO4/propylene carbonate electrolyte. The battery performances of the f ibrous electrode are evaluated as a function of the structure of the c arbon fibers. Not only the crystallographic structures but also the mo rphology of the fibers affect the battery performances. It was shown t hat Li is stored to form electrochemically the Ist stage compounds in well-ordered and even in disordered carbon fiber electrodes.