部编高二化学课本P32—44,分别讲述了原电池、电解池和电镀池的原理,而电镀不过是电解原理的一个应用,因此,关于三池的判别实际上只归结为原电池和电解池的判别。大家知道,原电池和电解池是化学能与电能相互转换的装置。应该说,在这二池里的电解质溶液发生电化学反应的共同本质虽然都是氧化—还原反应,但也有区别。对于原电池说来,是先有反应(氧—还反应)才有电(电子的定向移动);对于电解池说来,则先有电然后才有 The Department of Chemistry textbooks, grades P32-44, describe the principles of primary batteries, electrolytic cells and electroplating baths, respectively, and electroplating is not an application of the principle of electrolysis. Therefore, the distinction between the three cells actually only comes down to primary cells and electrolytic cells. Discrimination. As we all know, primary batteries and electrolytic cells are devices that convert chemical energy and electricity. It should be said that the common nature of the electrochemical reactions in the electrolyte solution in these two pools are all oxidation-reduction reactions, but there are differences. For the primary battery, it is the first reaction (oxygen-reaction) that has electricity (the directional movement of the electrons); for the electrolytic cell, there is electricity first and then