| 摘要 |
PURPOSE: To provide a lithium secondary battery having large capacity, the low degree of shelf deterioration, and high practicability. CONSTITUTION: This lithium secondary battery is composed of a positive electrode 3, a carbonaceous-material-made negative electrode 7 capable of storing and emitting a lithium ion, and a lithium ion conductive electrolyte. The electrode 7 made of a carbonaceous material is a heat-treated mesophase pitch carbon fiber. A second lithium secondary battery is composed of a positive electrode 3, the electrode 7 made of the carbonaceous material and capable of storing and releasing a lithium ion, and the lithium ion conductive electrolyte. The electrode 7 is heat-treated under an air atmosphere, and is the mesophase pitch carbon fiber having a specific surface of 5m<2> /g or less. |
