| 摘要 |
Instead of the standard formation, which comprises a cyclic treatment in excess hydroxide solution, freshly produced negative cadmium electrodes for alkaline storage batteries are cleaned and activated by a heat treatment lasting approximately 1/2 hour at approximately 240 DEG C. The process, which can be referred to as "thermal formation", brings about a partial conversion of the poorly conducting Cd(OH)2 into conductive CdO and a decomposition of undesirable impurities such as carbonates, or nitrates entrained from the impregnating process. Ni/Cd cells containing negative electrodes pretreated in this way have a substantially lower self-discharge and good high-current-carrying capacity. |
