| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery with a good discharging characteristic by forming the battery with a positive electrode having a positive electrode mix containing LiMn2 O4 and a conductive material, a negative electrode and a nonaqueous electrolyte containing alkaline metal ions, and using the carbon black having the specific iodine adsorption and dibutyl phthalate oil absorption for the conductive material of the positive electrode. SOLUTION: The carbon black having the iodine adsorption of 42 mg/g or below and the dibutyl phthalate oil absorption of 110 ml/100 g or above is used for the conductive material of a positive electrode. The carbon black is 2 wt.% or above of the whole positive electrode mix. Thermal decomposition carbons, coke graphites, glassy carbons, an organic polymer compound baked body, carbon fibers or activated carbon can be used for a carbon material. When the carbon material is used for a negative electrode material, a negative electrode mix mixed with the negative electrode material to a binder and a solvent is molded into an electrode shape, or the negative electrode mix is applied to a current collector and dried to manufacture a negative electrode. |
