How to deal with the safety problem of power lithium-ion battery system

①The safety of the power lithium-ion battery system must be handled by the battery cell. To ensure the safety of the battery cell, it must use more stable materials and safer design. ② Improve by adding additives to the electrolyte to reduce its flammability, improve the temperature resistance of the separator, or improve the stability of the positive electrode material; in terms of module design, it is improved by enhancing the temperature control design, BMS charging management or changing the monomer connection method. Safety: The battery level can be placed on the vehicle level to better dissipate heat, and the charging method can be improved to reduce potential safety hazards due to improper charging. ③The current test standards cannot completely eliminate the safety problems of power lithium-ion batteries. Power lithium-ion batteries are flammable and have high energy density. They have positive and negative electrodes. The heat generated during use will cause thermal runaway problems. At present, we have strengthened technological research from the battery body technology, and the safety of power lithium-ion batteries can be guaranteed in about 5-10 years. ④The safety of power lithium-ion batteries is closely related to the management level and manufacturing level of the battery factory. To improve the safety and reliability of the battery, it is necessary to gradually improve in all aspects and run through all links of processing management. The reasons for the inconsistency of power lithium-ion battery performance are mainly related to two aspects: the absolute inconsistency in the manufacturing process of the battery cell and the relative inconsistency in the assembly and use process of the battery pack. At present, domestic battery equipment manufacturers need to use segmented automation equipment to improve the performance inconsistency in cell processing and manufacturing, and they still need to use semi-automatic methods such as manual clamping, single machine sampling, and manual sorting in cell formation and capacity classification. , Ignoring the relative consistency of battery packaging. 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: How to prepare lead-acid battery electrolyte?