| 摘要 |
1,253,443. Dry cell. MITSUI MINING & SMELTING CO. Ltd. 14 Feb., 1969 [17 Aug., 1968], No. 8228/69. Heading H1B. In an alkaline dry battery which comprises a MnO 2 cathode and a zinc powder anode, the MnO 2 includes a carbamate, for example, ammonium-, sodium-, or potassium carbamate, or chemically related substances containing a carbamate, such as ammonium carbonate which contains ammonium carbamate. The carbamate can be added in powder form or as an aqueous or alkaline solution. The other cathodic components may include acetylene black, graphite and zinc chloride. |
