| 摘要 |
PURPOSE:To reduce the carbon powder amount of a conductive material necessary to give the electron conductivity to a positive electrode, to increase the filler active substance amount consequently, and to improve the utilization efficiency of the active substance, by using an active substance which is made by absorbing graphite over the surface of copper oxide and chalcopyrite. CONSTITUTION:An active substance is made by absorbing graphite powder to a copper oxide and chalcopyrite beforehand, and an organic electrolyte cell with a positive electrode 4 which consists of a conductive material of carbon powder and a binder, and a negative electrode 2 which consists of lithium or an alloy mainly of lithium is composed. By absorbing the graphite powder at the surface of the copper oxide and the chalcopyrite, the specific gravity of the cell itself is not almost changed, but the good adhesive property of the graphite powder at the surface and the graphite powder or the carbon black of the conductive material makes a uniform mixing even with a small amount of conductive material. Therefore, the active substance can be increased at the amount of reducing the carbon powder, resulting in an increase of the electric capacity of the cell. |
