What does the safety of lithium iron phosphate battery pack depend on?

Is the lithium iron phosphate battery pack safe? The safety of the lithium iron phosphate battery pack depends on the basic electrochemical system and the internal factors such as the structure, design and processing technology of the electrode/cell, and the electrochemical system used by the cell is the most fundamental factor in determining the safety of the battery. factor. Needle stick, short circuit, squeeze When the lithium battery pack has a short circuit, needle stick or squeeze, it will cause the internal diaphragm to rupture, which will cause a sudden explosion in temperature, and eventually an explosion, especially for lithium batteries with poor safety performance. , This time will be even shorter, generally it will explode in about 5 seconds. Thermal shock The so-called thermal shock is a phenomenon where the ambient temperature suddenly rises. If the temperature is high, it will cause the SEI film on the negative electrode surface of the lithium battery pack to decompose, which will cause an exothermic reaction. If the battery heat dissipation is not good, the internal temperature will be It rises rapidly, resulting in a deflagration phenomenon. Overcharge If the lithium battery is overcharged, the excess electric energy will be converted into heat energy, which will cause damage to the temperature of the battery body. Often this problem will appear in some chargers or electronic products that do not have overcharge protection. 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 article: What are the storage requirements for ternary lithium battery electrolyte?