Alkaline zinc manganese dry battery electrode reaction:
The cylinder made of metal zinc skin, which is the negative electrode, is the electrolytic reaction of ammonia chloride and zinc. The discharged charge is transferred from the graphite to the positive carbon rod. The electrolytic reaction of zinc will release hydrogen gas. This gas will increase. The internal resistance of the battery, and manganese dioxide mixed with graphite is used to absorb hydrogen
However, if the battery is continuously operated or used for too long, the manganese dioxide is too late or nearly saturated to reabsorb, and the battery will lose its effect because the internal resistance is too large and the output current is too small.
However, if the battery is heated or left for a while, the accumulated hydrogen inside it will be released by heat or slowly released. Manganese dioxide is also restored and restored
The dry battery is a primary battery in a chemical power source and is a disposable battery
Because the chemical power source of this chemical power device is a non-flowable paste, it is called a dry cell, which is relative to a battery with a mobile electrolyte.
Dry batteries are not only suitable for flashlights, semi-conductor radios, tape recorders, cameras, electronic clocks, toys, etc., but also for national defense, scientific research, telecommunications, navigation, aviation, medicine, and other areas of the national economy, very easy to use.