| 摘要 |
369,085. Depolarizing mix for dry batteries. BURGESS BATTERY CO., Madison, Wisconsin, U.S.A.-(Assignees of Henderson, J. M. ; Madison, Wisconsin, U.S.A.) June 4, 1931, No. 16388. Convention date, June 4, 1930. [Class 53.] Particles of resilient material, such as cork, birch-bark, porous or solid rubber, or rubber substitutes, e.g. polymerized corn or tung oil, are incorporated in the depolarizing mix, whereby the mix maintains a pressure against the electrodes, and facilitates the escape of gases. The mix should be firmly tamped into place, so that the resilient material is compressed. This compression persists during the life of the cell. In the cell illustrated in the drawing, 1 is a zinc electrode, 2 a carbon electrode, 3 a pitch seal, 4 an expansion space which may contain sand and sawdust, 6 the bibulous paper envelope, 7 the paper bottom and 5 the depolarizing mix of manganese dioxide, amorphous carbon, graphite and the electrolyte containing sal ammoniac and zinc chloride. Graphitic oxide may be used instead of manganese dioxide. |
