| 摘要 |
PROBLEM TO BE SOLVED: To improve conductivity between electrode active material fine particles and between the electrode active material fine particles and a collector by forming an electrode active material layer by adding at least polyacetylene and/or polyaniline to the electrode active material of a battery using an internal electrode body composed by winding or laminating a positive electrode plate and a negative electrode plate interposing a separator and an organic electrolyte. SOLUTION: A lithium transition metal composite oxide such as cobalt acid lithium, nickel acid lithium, or manganese acid lithium is used as a positive electrode active material. In order to prepare positive electrode paste using the positive electrode active material, firstly, a solution is prepared by adding and dissolving polyacetylene and/or polyaniline as a binder into an organic solvent. Each polymerization degree of the polyacetylene and/or polyaniline used in this case is preferably 50,000 to 500,000 from the view point of solubility to the organic solvent and conductivity, and methylpyrrolidone is designated as the organic solvent used. |
