Lithium battery PACK factory explains the matters needing attention when assembling lithium batteries

Lithium battery pack factory explains the matters needing attention when assembling lithium batteries. Whether it is 18650, 21700 cylindrical lithium battery packs, polymer soft pack lithium batteries, lithium iron phosphate lithium battery packs, there are standard operating procedures and standards. , To ensure safe production, the lithium battery itself is the energy body, the lithium battery manufacturers of a large number of lithium batteries in Juji must strictly follow the safety standard operating procedures. Only then can production safety and product safety be guaranteed. Now lithium battery PACK manufacturers explain the things that need to be paid attention to when assembling lithium batteries. 1. Lithium battery PACK needs attention 1. Screening of lithium batteries. Use internal resistance meter and capacity testing equipment to screen the batteries to be combined, according to internal resistance and Similar capacity parameters are used in groups. 2. Pay attention to the protection of the outer packaging of the soft-packed lithium battery, and keep it away from sharp objects to avoid puncture damage. Wear gloves and cut your fingernails. 3. It is forbidden to bend the top and side sealing edges, and take reliable insulation and isolation measures to avoid the butt short circuit between the negative electrode and the aluminum-plastic composite film. 4. It is forbidden to bend the pole handle, and avoid the pole handle and the aluminum-plastic composite film during the production process. Contact and strictly isolate with ferrule film. 5. Separate the tabs with PC film or silica gel to insulate them, and fix them with striped glue. 6. Avoid mechanical impact, such as falling, hitting, bending the battery cell and trampling on the battery. 7. It is forbidden to short-circuit the positive and negative poles of lithium batteries with metal objects. 8. According to the operation requirements, do a good job of waterproof and sealing protection. 9. The battery pack needs to be protected against shock and buffer to prevent the Ni-MH welding of the lithium battery from falling off due to vibration. Or other damage. 10. Do a good job of heat dissipation of the battery and BMS, and prevent the occurrence of heat accumulation effect. 11. The anti-corrosion of the battery needs to be considered when designing the structure. 2. Other matters needing attention for lithium battery PACK 1. Shell design: (1) Adequate mechanical strength to avoid mechanical damage to the battery cell by external forces. (2) There should be no sharp corners inside. (3) Reserve space is required, and the inner wall of the shell should not be in direct contact with the battery core, so as to avoid the friction between the battery core and the shell causing damage to the battery core and short circuit. 2. Reasonable BMS setting and matching 3. Welding must be firm. 4. Reliable positioning of the battery cell. After assembly, the battery cell should be fastened firmly in the shell without loosening at will, so that the entire lithium battery structure is in a consolidated state. 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: Why is the lithium battery of drones more expensive than conventional lithium batteries?