Battery tabs:It is a very important part of the battery. Do you know the precautions for spot welding tabs and connecting pieces of 18650 lithium batteries?

1. The specifications of the tabs must comply with the material BOM specifications.

2. The welds must not have issues such as missing welds, cold welds, sparks, or obvious burrs.

3. Each lead-out/connector should have no fewer than 6 solder points.

4. When working, the surface pad must not come off. If it does, it must be reattached before continuing work.

5. When the tip of the copper needle on the spot welding machine turns black, use a file knife to remove the black spots from the copper needle and then reperform the spot welding operation.

6. If the instrument emits smoke, makes abnormal noises, or other abnormalities, immediately turn off the power switch, stop the instrument's operation, and report to the supervisor.

In fact, spot welding the tabs of 18650 lithium batteries is not much different from other types of spot welding. Some polymer lithium batteries also require spot welding to connect the tabs. The principle of spot welding is largely the same, but here at China Battery Network, all issues are standardized, and the methods and precautions are very thorough.

The above content was compiled and released for you by the editor of Yixing Xinda Technology. Yixing Xindake New Energy Technology Co., Ltd. is located by the beautiful Taihu Lake, with convenient transportation and relatively favorable prices for stamping parts processing. It is a professional copper busbar manufacturer producing copper foil flexible connectors, stamping parts, and other high and low voltage accessories.