What are the common bad phenomena of batteries?

Before we use lithium as an energy source, there is still a lot to learn. Few types are more important than safety. No matter what kind of battery you have to be careful of, don’t you think? Start sharing your knowledge of lithium batteries before the formal test. What are the common bad phenomena of the battery? The positive and negative electrodes of the battery are in contact with the metal and the external short-circuit fire appearance is damaged (scissors , Perforation) battery hit (drop, drop) 1. Why the battery is swollen? Overcharge, overdischarge, use of electrical equipment problems storage time is too long (more than 15 days) long-term storage in a high temperature environment, the external short circuit protection plate self-discharge , Make the battery over-discharge, puncture, crush, use the kneading process, or the welding time is too long, etc. The working current exceeds the nominal value of the battery, resulting in overload, resulting in battery damage and swelling. 2. Under what circumstances is the battery pressure low or high pressure difference? Battery capacity, Internal resistance, voltage mismatch, welding short-circuit, ignition, leading to self-discharge large external damage: internal short-circuits such as knocking, deformation, etc., cause self-discharge large battery packs to be overcharged, over-discharged or over-discharged during use. Note: If all the monomers in the battery pack have low voltage or zero power at the same time, it is mostly a non-battery quality problem, such as high self-consumption of the protection board and excessive discharge of the battery pack during operation. 3. The battery is not charged or the charging time is too long. Welding and welding, the internal resistance protection plate is damaged. The voltage difference of a single battery in the battery pack is too large or the charger is defective or damaged. 4. How about the battery catching fire? Overcharging, overcharging Discharge external force causes battery damage (such as puncture, drop) External short circuit: short circuit of anode and cathode, short circuit of protection plate components, internal short circuit: dust, burr pierced the diaphragm, etc. Congratulations! If you have answered all the above five questions wrong, you Thousands of dollars may be lost! Of course, students with 0 points should not be discouraged. Hurry up to take out the notebook, listen carefully, and save the full text, saving more than 200 minutes! Disclaimer: Some pictures and content of articles published on this site are from On the Internet, if there is any infringement, please contact to delete the previous article: Do I need to use a high-power charger for a large-capacity lithium iron phosphate battery?