| 摘要 |
779,033. Batteries. OY AIRAM AKTIEBOLAG. April 29, 1955 [April 30, 1954], No. 12478/55. Class 53. In order to prevent leakage of electrolyte in a number of superposed flat primary cells, each cell has an integument member substantially surrounding the cell electrolyte. The integument member is porous, e.g. porous paper capable of absorbing an insulating substance which is applied as a coating to the cell external surface. The insulating substance may be polythene or a mixture of polythene and paraffin or any other substance impervious to water but pervious to hydrogen. Fig. 5 shows an integument member V adapted to be placed in a battery between the electrolyte S and the zinc electrode Z as in Fig. 1. In Fig. 3 the battery has an insulating substance E which penetrates the porous integument member as shown at E<SP>1</SP>. |
