What is an alkaline battery


Alkaline batteries are also known as alkaline dry batte […]

Alkaline batteries are also known as alkaline dry batteries, alkaline zinc-manganese batteries, and alkaline manganese batteries. They are the best-performing varieties of zinc-manganese batteries. Suitable for large discharge and long-term use. The internal resistance of the battery is low, so the current generated is larger than that of ordinary manganese batteries, and the environmentally friendly mercury content is only 0.025%, which does not require recycling.
Alkaline batteries are the most successful high-capacity dry batteries and one of the most cost-effective batteries at present. Alkaline batteries use manganese dioxide as the positive electrode, zinc as the negative electrode, and potassium hydroxide as the electrolyte. Its characteristics are superior to carbon batteries, and its capacitance is large. The chemical formula is: Zn + MnO2 + H2O → Mn (OH) 2 + ZnO structure
Alkaline batteries use the opposite electrode structure of ordinary batteries in structure, which increases the relative area between positive and negative electrodes, and replaces ammonium chloride and zinc chloride solutions with highly conductive potassium hydroxide solutions. Change from sheet to granular, increase the reaction area of ​​the negative electrode, and use high-performance electrolytic manganese powder, so the electrical performance is greatly improved. Generally, the alkaline battery of the same type is the capacity and discharge time of the ordinary battery 3-7 times of the low temperature performance, the gap between the two is larger. Alkaline batteries are more suitable for high-current continuous discharge and power applications requiring high working voltage, especially for cameras, flashes, shavers, electric toys, CDs Machine, high-power remote control, wireless mouse, keyboard, etc.