Alkaline batteries are the most successful high-capacity dry batteries

Alkaline battery is the most successful high-capacity dry battery, and it is also one of the batteries with the most performance price ratio at present. The alkaline battery uses manganese dioxide as the positive electrode, zinc as the negative electrode and potassium hydroxide as the electrolyte. Compared with carbon battery, it has excellent characteristics and large capacitance. The chemical formula is: Zn + MnO2 + H2O → Mn (OH) 2 + ZnO structure
In terms of structure, the alkaline battery adopts the electrode structure opposite to that of the ordinary battery, which increases the relative area between the positive and negative electrodes. In addition, ammonium chloride and zinc chloride solutions are replaced by potassium hydroxide solution with high conductivity. The negative zinc is also changed from flake to granular, which increases the reaction area of the negative electrode. In addition, the high-performance electrolytic manganese powder is adopted, so the electrical performance is greatly improved. Generally, The capacity and discharge time of alkaline batteries of the same model are 3-7 times that of ordinary batteries, and there is a greater gap between the two in low-temperature performance. Alkaline batteries are more suitable for high current continuous discharge and electric field combination requiring high working voltage, especially for cameras, flash lamps, razors, electric toys, CD players, high-power remote controls, wireless mice, keyboards, etc.




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