| 摘要 |
PROBLEM TO BE SOLVED: To solve such problems that a conventional current collector for each electrode plate causes battery capacity loss equivalent to the volume of the current collector which does not theoretically contribute to charge discharge capacity, the development of a very thin current collector for the electrode plate is desired in order to make up the capacity loss, but since the very thin current collector for the electrode plate, which satisfies both of the strength and thickness, is not yet developed at present, the capacity increase has reached the limits at present in battery development.SOLUTION: An electrode plate for a battery uses a carbon nanotube sheet 2 in the current collector of the electrode plate. By this constitution, since the carbon nanotube sheet 2 contributes to the charge-discharge capacity of the battery, the contribution of the current collector to charge-discharge, which was impossible in the conventional technology, is made possible, and the capacity of the battery can furthermore be increased. |
