| 摘要 |
An electrode group is configured in such a manner that the exposed portion of positive electrode collector is arranged on one end side and the exposed portion of negative electrode collector is arranged on the other end side. The exposed portions of the positive electrode collector and the negative electrode collector are connected with positive electrode collector terminal plate and negative electrode collector terminal plate, respectively. An electrically conductive dish spring is compressed and arranged between the positive collector terminal plate and an aperture-sealing plate. The dish spring has a dead band where elastic force remains unchanged in accordance with a deformed amount and biases the negative collector terminal plate to the bottom of a battery case by a fixed elastic force. |
