Button Cell Battery Plays an Important Role in Life

Brief introduction of button cell battery

In general, the power capacity is smaller than the normal dry cell, which is used in some small portable device that is not convenient to connect with outer power supply, such as computer, watch, electronic clinical thermometer and so on. In addition, it is also used as backup battery in computer devices, in order to keep the clock and memory without electricity power. According to the material, it can be divided into lithium button cell, alkaline battery, silver oxide cell and zinc air battery. Except the lithium battery with the beginning of BR, CR, other button cell still consists of a little mercury. So, the used button cell should be put in the authorized places instead of throwing them in to litter as one pleases.

Methods to indentify button cell

With popularizing of electronic watch, lighter, camera, button is widely used in the modern world. Various forged and fake button cells are produced in the market. At present, there are three main kinds of button cells: 1. Domestic regular enterprise. 2. Imported button cell. 3. Fake and forged button cell whose material is alkaline battery manufacturer and its property is worse than silver oxide. We can judge the fake button cell from the following aspects: 1. Indentify from the logo. The fake cell has no trade mark, producing area, producing date or inspection certificate. 2. Judging from the appearance. Negative electrode side of fake cells is plated in yellow, and positive pole will be full of rust spots. 3. Judging from the performance of cell. A large number of alkaline own low battery volume with short working life, and it is bad in loading.

Classification of button cell

Button cell can be divided into chemical battery and physical energy. And the chemical battery is used in wide range which consists of positive pole, negative pole and electric contact liquid. 1. Silver oxide cell owns the character of long working life and huge volume, and it is widely used in all industries. Its positive pole is silver oxide, its negative pole is zinc powder, and its electrolyte is sodium hydroxide or potassium hydroxide. 2. Silver peroxide button cell has the same structure with silver oxide cell, the difference is that its positive pole is silver peroxide. 3. Mercury button battery can be used under high temperature, and it can used to store. Its positive pole is mercury, and its negative pole is zinc. 4. Alkaline manganese button cell has large volume, excellent low temperature performance, cheap material and low price.

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