Some lithium batteries may bulge during use, what is the reason and how should we deal with it?

　　The specific reasons for the bulging of lithium batteries are as follows:

　　(1) The opening pressure of the safety valve of the lithium battery is too high, or the safety valve is blocked. When the internal pressure increases to a certain level, the safety valve cannot be opened normally, which will inevitably cause the lithium battery to bulge and deform.

　　(2) The floating charge voltage of the lithium battery is set too high and the charging current is large, which causes the precipitation of O2 on the positive electrode to accelerate, and it is too late to recombine on the negative electrode. The temperature in the battery rises quickly. If the lithium battery is not exhausted in time at this time, when the internal pressure reaches a certain level, the lithium battery will bulge and deform.

　　(3) When lithium batteries are overcharged, and the quality of lithium batteries is not good, often there will be excessive internal gas and other phenomena, resulting in bulging.

　　What should I do after the lithium battery is swollen?

　　The bulging lithium battery is best to give up directly, after all, the battery capacity has been affected. At the same time, there will be problems inside the lithium battery, and there is a high probability that it will be dangerous if it continues to be used.

　　The swollen lithium battery packs need to be discarded to the recycling bins of the relevant classification. Do not discard them in the wild at will to prevent danger.