| 摘要 |
PURPOSE:To moderately suppress the growth of the oxide film on the contact surface so as to improve the conductivity between the positive electrode and the cell case to enable to obtain a high current by using a cell case of which surface to be contacted to the positive electrode active material mainly composed of oxides such as MnO2 is clad with aluminum. CONSTITUTION:A cell case 1, on the surface of which to be contacted to the positive electrode active material 2 mainly composed of oxides such as MnO2, aluminum on which the growth of oxide film is less than that on SUS materials is clad, is used for a cell. Therefore the closed-circuit voltages of the said cell at respective discharge depths are higher and less in dispersion than those of conventional cells using cell case made of SUS materials and conventional cells on the inner surface of the cell case of which electroconductive resin is coated. the closed-circuit voltages and the dispersion of which are nearly correspond to those of the said resin coated cell, and the same effect to the conductive resin can be obtained. Thereby a high current can be outputted without coating of conductive resin. |
