Cell is a very important instrument affecting the effect of electrochemical experiment. In order to simplify experiment preparation and enhance experiment effect, salt circuit cell is designed and the principle of the salt circuit and cell is explained, comparing with salt bridge cell. Salt circuit cell can be used in some experiments in which concentration, acidity may have influence on potential and acidity may have influence on reaction. The result shows that salt circuit cell is simple in structure, convenient in use and saving. It has low resistance, high power, stable current, and good teaching effect. Salt circuit can not only completely replace salt bridge but also has a better performance. Salt circuit cell is a new kind of cell. It is a new practical chemical experiment instrument both at home and abroad.%电化学实验中,原电池装置是影响实验效果的重要因素.为了进一步简化实验准备工作量,提高电化学实验效果,研制了盐通式原电池,阐述了盐通的功能和盐通式原电池的工作原理,并与盐桥式原电池进行了比较分析.盐通式原电池可应用于浓度、酸度对电极电位的影响;酸度对氧化还原反应方向的影响等实验.结果表明,盐通式原电池结构简单、使用方便、宜于保存,内阻低、功率高、电流平稳,实验效果好.盐通不但完全能够取代传统盐桥,而且性能大大优于盐桥.盐通式原电池是一种新的原电池,经过文献检索,国内外目前尚无同类装置,属于一种实用新型电化学实验装置.
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