| 摘要 |
766,589. Batteries. ACCUMULATORENFABRIK AKT.-GES. July 8, 1954 [July 10, 1953], No. 20071/54. Drawings to Specification. Class 53. To avoid the presence of foreign metals in the cadmium mass with which a sintered electrode is impregnated the cadmium is introduced by means of a solution of a cadmium salt which is itself free from iron, copper, bismuth, nickel and other foreign metals, the active mass being deposited by subjecting the electrode to cathodic polarization in an alkaline solution. |
