| 摘要 |
PURPOSE:To provide an electrode for a secondary battery with good adhesion of the electrode to a current collector by constituting the electrode by stacking film-state electrode active material layers in multiple layers. CONSTITUTION:Two or more layers of film layers 4, 5 each containing an active material are stacked to constitute a secondary battery electrode. If the total film thickness is the same, a multilayer film has high adhesion to a current collector 3 compared with a single layer, and the secondary battery electrode with good adhesion of the electrode to the current collector 3 can be obtained. If the film layers 4, 5 are formed with the same composition, adhesion between layers is increased, and if they are formed with different composition, a different physical property is satisfied at the same time by each layer. At least one layer in the film layers is preferable to be formed with a layer in which at least one kind of particle-shaped electrochemical active material is dispersed in at least one kind of conductive polymer matrix showing an oxidation reduction property. |
