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    • 2. 发明专利
    • BATTERY
    • JPH06314564A
    • 1994-11-08
    • JP11373994
    • 1994-04-27
    • SIEMENS AG
    • UERUNAA HARUBAUERUMACHIASU RUURANTOHORUGAA YANSEN
    • H01M2/40H01M12/08
    • PURPOSE: To prevent any leakage of electrolyte in the case of accidental collision in a zinc/boron battery for an electric automobile by filling sponge substance capable of absorbing the electrolyte inside a reservoir container for the electrolyte, and covering the leaked electrolyte with a protecting coating containing substances which can be combined with each other by a chemical reaction. CONSTITUTION: Protecting coatings 1.2, 2.2 made of a binder composed of sodium thiosulfate or sodium zincate are air-tightly covered with other coatings 1.3, 2.3 each made of a foil which is advantageously difficult to be peeled off and is elastic. In order to inhibit any leakage of an electrolyte or reduce a leakage quantity to a minimum level free from a danger in the case where a reservoir container 1 or 2 is broken due to collision, the reservoir containers 1, 2 are filled with sponge fillers 1.1, 2.1 capable of absorbing the electrolyte, so that the electrolyte is made to flow inside circulating conduits 7, 8 under low pressure by the effect of pumps 7.1, 8.1. Consequently, it is possible to eliminate any danger caused by an accidental collision and non-air-tightness of the containers 1, 2 generated in association with the accidental collision.