Lithium secondary battery

摘要

A lithium secondary battery having a life longer than conventional batteries at a high temperature for electric power storage systems, electric vehicles, elevator power source, electric tools, and the like, which require a high output and a high input characteristics, is realized. A material specified in Li/Mn atomic ratio, lattice constant, half value width, specific surface area, and average primary particle size is used as the positive electrode active material; and a material specified in negative electrode density, true density, and crystalline thickness is used as the negative electrode; in order to obtain a lithium secondary battery having a long life at a high temperature, a high output, and a high input characteristics.