| 摘要 |
PURPOSE:To prevent increase in resistance and decrease in discharge voltage by stacking plural thin positive mix layers with a conductive layer interposed between two mix layers, and making the density of the whole stacked mix uniform. CONSTITUTION:A positive electrode 3 is arranged in a case 2, and a separator 4 impregnated with organic electrolyte and a negative electrode 5 are placed thereon. A sealing plate 6 is inserted inside the case 2 so as to cover the upper surface of the negative electrode 5. A gasket 7 is arranged in the fitting part of the case 1 and the sealing plate 6. The positive electrode 3 is formed by stacking plural layers of positive mixes 8, and each of conductive layers 9 mainly comprising carbon is arranged between the positive mix layers 8, 8. By forming the positive electrode 3 with plural thin positive mix layers 9 having uniform density, the density of the whole positive electrode is made uniform, and increase in internal resistance and decrease in discharge voltage are prevented. |
