| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrode manufacturing method which can charge macromolecules in an active material layer sufficiently deeply and uniformly while electron conductivity between active material particles of the electrode is maintained. SOLUTION: By using a battery electrode involving a porous active material layer, and the mixed liquid which includes a polymer and the liquid which is slightly soluble to the polymer, the mixed liquid is held in the pores of the active material layer. It is possible to charge a large amount of the polymer in the active material layer sufficiently deeply and uniformly while electron conductivity between active material particles of the electrode is maintained. In an active material layer where heat generation chain reaction is most likely to be started easily at the time of safety test for battery such as nail stinging in a lithium battery or the like, a suppressing effect to start the heat generation chain reaction can be obtained, thus it is possible to provide a battery more excellent in its safety. |
