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1799年,意大利物理学家伏打使用多组不同的金属片中间夹以湿纸组成的第一个化学电源即“伏打堆”。其化学原理是:由于不同的金属化学活动性不同,活动性强的金属失去电子被氧化;其失去的电子经导线传输到另一活动性弱的金属,湿纸包含的水溶剂里含有的电解质电离生成的阳离子获得电子被还原。这是人类第一次获得了可供实用的持续电流电源,是化学电源最原始的装置。在伏打电池的基础上,戴维组装了一个特别大的电堆用于实
In 1799, the Italian physicist Vodafone used several different sets of metal sheets, the first of which was composed of wet paper, called “Volt Stack”. The chemical principle is: Due to different metal chemical activity, active metal loss of electrons is oxidized; the lost electrons are transmitted through the wire to another activity of weak metal, wet paper contains water solution containing electrolyte The ion-generated cation-obtained electrons are reduced. This is the first time human beings have obtained a practical continuous current power supply, is the most primitive device of chemical power. Based on the volt battery, David assembled a particularly large stack for real applications