Why do lithium batteries explode? What can cause the battery to explode?

Why lithium batteries explode? The battery problem of branded mobile phones is relatively rare, and is more common in refurbished or second-hand mobile phones. 2. In order to save costs for mobile phones or refurbished phones, low cost-effective batteries are often used in mobile phone equipment. These batteries have low cost, too much impurities, poor planning process, and risk of self-destruction. Long-term overcharging of the battery: Long-term overcharging, overcharging and overcurrent will also lead to high temperature and high pressure, causing hidden dangers. Lithium batteries can instantly discharge and a large amount of current under special temperature, humidity and poor contact conditions, spontaneously ignite or explode. Battery short-circuit: When the mobile phone is in a high temperature state, or is subjected to conditions such as impact or metal conflict, the battery may short-circuit or burst. Charging will cause the battery to explode: playing with the phone while charging, and charging while playing will cause the charging time to become longer, and long-term charging will cause the temperature of the phone to rise, which is simpler. The charger and battery do not match: Generally, mobile phones have original chargers. The wrong charger will only cause a battery accident. IPhone only uses the original charger to charge, which greatly reduces the possibility of battery self-destruction. High temperature: High temperature refers to the battery's internal heat reaching the limit, long-term charging, high temperature irradiation, and baking are simply the formation of excessive battery temperature. In southern my country, ordinary households use electric stoves in winter. Many people like to keep warm in the electric stove while playing with their mobile phones, which is also very dangerous. Thermal runaway: Lithium batteries have the risk of explosion due to a reaction called thermal runaway that occurs inside the battery. Thermal runaway is a process of positive energy feedback: an increase in temperature causes the system to heat up, which in turn causes the system to heat up. The above-mentioned reasons, such as battery short circuit, high ambient temperature, frequent overcharging, unauthorized modification of the casing, etc., will cause thermal runaway of the lithium battery, which may eventually lead to fire or explosion. But don't worry too much, your device is not a time bomb. As long as there is a reasonable use in peacetime, the lithium battery will operate safely and reliably. You should charge it when it drops to 50%. Lithium ions have no memory effect, but too low voltage will seriously damage them. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Will the processing cost of lithium batteries drop in the future?