Battery short circuit: When the mobile phone is in a high temperature state, or by impact, metal friction and other circumstances, may cause a battery short circuit, explosion.
Charging leads to battery explosion: Playing with the phone while charging and charging while playing will lead to longer charging time. A long time of charging will lead to the temperature rise of the phone, making it more likely to explode.
Chargers and batteries do not match: the general mobile phone has the original charger. The wrong type of charger can easily cause battery accidents. Apple only accepts the original charger to charge the iPhone, which greatly reduces the chance of the battery bursting.
Excessive temperature: Excessive temperature means that the internal heat of the battery has reached its limit, which is easy to cause excessive temperature of the battery due to long-term charging, high temperature irradiation and baking. In the south of China, the general family will use the electric oven in winter, a lot of people like in the electric oven while the fire playing mobile phone, this is also very dangerous.
Runaway heat: Lithium-ion batteries are at risk of exploding because of a process called "runaway heat" that occurs in the reaction inside the battery. "Thermal runaway" is an energy positive feedback loop: higher temperatures cause the system to heat up, which in turn makes the system hotter. The above reasons, such as short circuit of the battery, excessive ambient temperature, frequent overcharging, unauthorized modification of the shell, etc., will cause the lithium ion battery to lose control of heat, which may eventually cause fire or explosion.
