Mobile phone battery is an energy storage tool to provide power for mobile phones, which consists of three parts: battery core, protection circuit and shell. Generally, mobile phone batteries are lithium batteries and nickel-hydrogen batteries. MAh is the unit of battery capacity, and its Chinese name is MAh.
Lithium batteries generally have safety protection circuits and various safety devices to ensure that the circuit will be automatically cut off when the battery is overcharged, discharged or short-circuited. Excessive internal pressure of the battery will also trigger the decompression of the exhaust device; If the battery temperature is too high, the hot-melt protection device will be triggered, thus stopping the electrochemical reaction of the battery. So unless there is a quality problem, the battery will not explode because of long-term charging.
If you don't unplug the power supply after fully charging, the battery will always be fully charged. Although it will not explode, it will accelerate the loss of battery capacity.
There are rumors that answering the phone while charging will cause an explosion. If this danger really exists, the product will be programmed to charge without connecting the mobile phone. However, from a health point of view, wires will limit the user's range of activities, and answering the phone while charging may make the user stay in one place for a long time, causing excessive muscle tension, so it is recommended to unplug the power before talking. Don't cover anything on the battery when charging, and don't put it on the bed to avoid fire.
reference data
Baidu encyclopedia. Baidu Encyclopedia [reference time 20 17- 12-25]