| 摘要 |
Provided is a battery cell on which positive electrodes, negative electrodes, layered unit cells, and an electrode assembly are installed in a storage part on a battery case. According to the present invention, in terms of the positive electrodes and the negative electrodes, electrode active materials are applied on one or both sides of a current collector. In addition, the layered unit cells are made of a separation membrane interposed between the positive electrode and the negative electrode, and the electrode assembly includes a separation film which consecutively winds up the unit cells. Furthermore, the positive electrode, the negative electrode, the separation membrane, and the separation film in the electrode assembly include at least one through-hole which is communicated on a position corresponding to each other. |
