What factors affect the safety of lithium batteries

Lithium batteries have become the standard power source for portable mobile devices and are developing rapidly in the electric vehicle and energy storage markets. The requirements for battery safety, energy density, power density, reliability and cycle life are also increasing, and the performance of lithium batteries is affected by many factors, even a small amount of impurities will cause the cycle stability and safety of lithium batteries Negative Effects. Therefore, we must attach great importance to the processing process and strictly control the quality. Factors that affect the safety of lithium batteries 1. Severe impact or puncture will immediately cause fire; 2. Poor circuit insulation and water ingress, causing a short circuit; 3. Overcharging will easily cause the electrolyte in the lithium battery to release gas. , Which will cause the battery to swell and swell, and in severe cases, it will even emit smoke and fire; over-discharging will cause damage to the molecular structure of the positive electrode material in the battery, resulting in failure to charge in; 4. Temperature will directly affect the activity and the electrode material in the battery The electrical conductivity, the insertion and extraction of lithium ions on the electrode, and the lithium ion permeability of the separator affect the electrochemical reactions inside the battery. The temperature sensitivity of lithium batteries is mainly due to the temperature sensitivity of their materials. 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: Which is the higher energy density of ternary lithium battery and lithium iron phosphate battery pack