Science popularization of basic knowledge of mobile phone lithium battery

　　(1) The capacity of mobile phone lithium battery refers to the electric energy released by the active substance in the battery to participate in the electrochemical reaction. After using the lithium battery for a period of time, you will find that the discharge time of the battery is getting shorter and shorter. The reason for this may be that the battery is not filled, for example, the charging time is not good, and the charging power is low; The discharge current of the battery is too large, resulting in a decrease in the discharge power, so the discharge time is shortened; When the battery is discharged, the temperature is too low, resulting in a decrease in the discharge power of the battery.

　　(2) The lithium battery for mobile phone is divided into static resistance and dynamic resistance, which are equivalent to the internal resistance when the battery is discharged and the internal resistance when charging. Mobile phone lithium battery also has charging power and discharging power. Charging power refers to the measurement of the electrical energy consumed by the battery during the charging process, which is converted into chemical energy; Discharge power refers to the ratio of the actual quantity of electricity released by the voltage to the additional quantity of electricity under certain discharge conditions.

　　(3) The charging power of mobile phone lithium battery is mainly affected by the battery process, formula and working environment. Generally, the higher the temperature is, the lower the battery charging power is; The discharge power is mainly affected by factors such as discharge rate, environment and internal resistance. The higher the discharge rate, the lower the discharge power, and the lower the temperature, the lower the discharge power.

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