What is the working principle of dry batteries?

Dry battery working principle Dry battery is a primary battery in chemical power supply. It is a kind of disposable battery. Its carbon rod is used as the positive electrode and the zinc cylinder is used as the negative electrode, which converts chemical energy into electrical energy to supply external circuits. In the chemical reaction, because zinc is more active than manganese, zinc loses electrons and is oxidized, while manganese gets electrons and is reduced. The important working principle of dry battery is that the redox reaction is realized in a closed loop! Ordinary dry batteries are mostly manganese-zinc batteries, with a positive carbon rod in the middle, a mixture of graphite and manganese dioxide outside, and a layer of fiber mesh outside. The net is coated with a thick electrolyte paste composed of ammonia chloride solution and starch, and a small amount of preservatives. The electrode reaction formula of alkaline zinc-manganese dry battery is: Zn+2MnO2+2NH4Clu003dZnCl2++Mn2O3+2NH3+H2O dry battery belongs to the primary battery in chemical power supply and is a kind of disposable battery. Because the electrolyte of this kind of chemical power supply device is a kind of non-flowable paste, it is called dry battery, which is related to the battery with flowable electrolyte. Dry batteries are not only suitable for flashlights, semiconductor radios, tape recorders, cameras, electronic clocks, toys, etc., but also for various fields in the national economy such as national defense, scientific research, telecommunications, navigation, aviation, and medicine. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What should I pay attention to when using dry batteries?