What to pay attention to when producing lithium battery PACK

1. Beware of the short circuit of lithium battery cells. Do not place the cells next to conductive materials or conductive tools. Beware of the positive and negative interlacing and superimposition of the cells. 2. Protection of the positive aluminum tape. Since the tensile force of the aluminum sheet itself is 1KG, the aluminum sheet is produced. Generally, it is not allowed to bear excessive tension alone; when aluminum is connected to nickel, be wary of excessive welding or false welding, so as to prevent the aluminum strip from being welded to the nickel strip to reach the tensile force it should bear; considering the aluminum sheet is soft, thin, and easy to break In order to ensure the quality of the product, the positive aluminum tape is generally produced by back-folding and in-folding when the aluminum sheet is connected to the nickel tape, and double-sided tape is attached to protect the tabs from external tension; 3. Fold the positive and negative poles Always pay attention to the length. When welding the nickel strip with the inner folding process, the length of the bend aluminum sheet or nickel strip should not exceed the length of the cell groove, so as to avoid excessively long and pressure piercing the insulating glue and cell packaging film, which will cause the cell to leak. . 4. For protection of the outer packaging film of lithium battery cells, it is strictly forbidden to scratch the surface with sharp objects. Work with finger cots and beware of scratching the battery. Avoid contact with sharp tools such as spare tweezers on the surface of the cell, and be wary of piercing the cell package and causing leakage. 5. Anti-impact protection of the battery cell must be very careful during transportation, storage, use, etc. The battery cell cannot be squeezed or hit by heavy objects; when assembling the battery, the battery should be knocked on the periphery of the battery cell and the internal diaphragm of the battery cell should be guarded. Fragmentation causes short and even short circuits. 6. Pay attention to the cleanliness of the battery cell assembly environment. Keep the work surface clean. Beware of nickel tape, tin slag and other foreign objects piercing the cell. 7. The protective tab welding or tin immersion time during the welding of lithium battery tabs should be as short as possible, generally within 3 seconds at 360°C. The welding time should not be too long to avoid scalding the lugs and causing liquid leakage. It is not advisable to bring dressing items such as rings on your hands. So as not to scratch the battery core. 8 is to protect the tabs, so tin can be immersed before soldering. Holding the battery core immersed in tin is likely to cause a short circuit, and the aluminum and nickel tapes are separately immersed in tin. 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: What are the advantages of lithium batteries that are sought after by people?