| 摘要 |
PURPOSE:To provide possibility of electric discharge to a battery voltage of 0V by incorporating such a construction that the dischargeable electric capacity of Li in pressure contact with an alloy neg. pole goes out while the dischargeable capacity of No.2 active substance of positive pole consisting of specific No.1, No.2 active substances is maintained. CONSTITUTION:No.1 active substance selected from MnO2, chromium oxide, and vanadium oxide is mixed with No.2 active substance such as MoO2, MoO3, MoS2, MoS3, and thereto carbon black and binder are added followed by pressure molding to accomplish a positive pole 5. An alloy neg. pole 2 is spot welded to the inner surface of a mouth sealing plate 1 consisting of Ni-plated stainless steel, and thereto Li 3 is attached by pressure. The neg. pole 2 consists of alloy prepared through melting of Pb, In, Cd in a proportion 75:6:20 by weight. Electrolyte (Li perchlorate) is impregnated in a propylene separator 4. Current collector 7 of Ti is spot welded to a case 6, and the positive pole 5 is attached by pressure. At the time of electric discharge, No.1 active substance of the positive pole 5 makes discharge for a specified period of time, and the Li capacity of the neg. pole 2 goes out while No.2 active substance makes discharge, and the battery voltage becomes 0V. |
