The safety of lithium batteries has always been the focus of consumers' concerns, especially after experiencing the impact of safety reports like Tesla's electric car on fire.

　　So how to improve the safety of lithium batteries?

　　Suitable cathode material

　　The surface coating of the positive electrode material with metal oxide can inhibit the phase change of the positive electrode material, improve its structural stability, and reduce the heat generation of side reactions.

　　Thermal stability of anode material

　　The anode material is the most prone to thermochemical decomposition and exothermic part of the lithium-ion battery. Therefore, improving the thermal stability of the SEI film is a key method to improve the safety of the anode material.

　　Improve the safety of electrolyte

　　There is a high reaction activity between the electrolyte and the positive and negative electrodes, especially at high temperatures. The potential safety hazards of electrolyte can be effectively solved by adding functional additives.

　　Selection of PCM/BMS

　　PCM/BMS are the peripheral safety performance defense lines of lithium batteries, and also the last line of defense. Therefore, qualified BMS/PCM products must be selected according to the actual use of lithium batteries.

　　In addition, lithium battery packs can also use safety valves, thermal fuses, components with positive temperature coefficients in series, and load dedicated protection circuit systems to improve safety performance.

　　Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect substitute for lead-acid batteries and are the first choice in the energy storage industry.