NONAQUEOUS ELECTROLYTE LITHIUM SECONDARY BATTERY

摘要

PURPOSE:To provide a nonaqueous electrolyte lithium secondary battery capable of lengthening charge/discharge cycle life. CONSTITUTION:A negative electrode material layer 2 is formed with carbon fibers made of graphite having crystal structure having the peak in (110) plane as determined by X-ray diffraction and in which lithium ions are doped. A positive electrode material layer 1 containing amorphous V2O5 as a positive active material is stacked with the negative electrode material layer 2 through an electrolyte layer 3 made of a nonaqueous electrolyte containing a lithium salt.