Why do alkaline batteries last?

Alkaline batteries, also known as alkaline zinc manganese dry cells, and ordinary dry cells (that is, carbon batteries) , with a durable, high current, long storage life, the case is not easy to corrosion and so on. Alkaline batteries are structured using the opposite electrode structure from conventional batteries, increasing the relative area between the positive and negative electrodes, and replacing ammonium chloride and zinc chloride solutions with highly conductive potassium hydroxide solutions, the negative electrode zinc also changed from flake to granular, increased the reaction area of the negative electrode, and used high-performance electrolytic manganese powder, so the electrical performance was greatly improved, alkaline batteries of the same model have a capacity and discharge time 3 to 7 times that of conventional batteries. In addition, alkaline battery discharge, the internal will not produce gas, and ordinary dry battery discharge will produce some gas, so the alkaline battery voltage is relatively stable. Alkaline batteries have fewer fillers that are not involved in chemical reactions, so they can be made smaller. In this way, the same volume of alkaline batteries and ordinary dry cells, alkaline batteries appear to be particularly durable. Alkaline batteries are suitable for high current discharge and high voltage applications, especially for electric toys, cameras, flash lamps, razors, high-power remote control, etc. .