| abstract |
For example, the high-branched polymer dispersant represented by the following formula has a high adhesion to the current collecting substrate, so that a conductive binder layer having a high concentration of carbon nanotubes can be formed, and the energy storage having the conductive binder layer is provided. By using a composite current collector for device electrodes, it is possible to produce an energy storage device having a long cycle life while releasing current without causing a voltage drop, particularly in an application requiring a large current, such as an electric vehicle. . |