| 摘要 |
PURPOSE:To intend to improve the life time for cyclic operation of a secondary cell by constructing the said cell with a negative electrode of which active substance is made of alkali metals, a positive electrode of which conductive material is composed of a large amount of Ti metal powder and a small amount of carbon black, and nonaqueous electrolyte. CONSTITUTION:The Cr-V oxides, the conductive material composed of a large amount of Ti metal powder and a small amount of carbon black, and the binder such as polytetrafluoroethylene resin are mixed and formed to construct the positive electrode 1. Then the said electrode 1 is accommodated in the position pole case 2 and assembled with the separator 5, the negative electrode 4 enabled to charge and discharge reversively by occlusion of lithium in such as the Pb-Sn- Cd alloy, and the electrolytic solution 6of nonaqueous electrolyte to construct the nonaqueous electrolyte secondary cell. Therefore by using both the carbon black which contacts to the active substance to give and take electrons to and from it and the Ti powder which works as a bridge to lead out electrons, the discharge capacity can be increased and the life time for cyclic operation can be elongated. |
