| abstract |
PROBLEM TO BE SOLVED: To provide a manufacturing method capable of easily obtaining a safe and excellent charge / discharge efficiency lithium ion battery having a low fluidity or a gelled electrolytic solution. SOLUTION: A paste-like active material mixture prepared by mixing an active material powder and a fine powder of a polymer dissolved in a non-aqueous electrolyte is applied to, for example, current collectors 1c and 2c to a uniform thickness. To form a positive electrode 1 and a negative electrode 2 containing the active material powder and the polymer fine powder. After assembling the battery structure using these two electrodes, the above-mentioned electrolyte is injected into the battery structure. |