Battery Manufactory

There may be two basic reasons for the expansion of lithium-ion batteries. The first reason is the level of production technology of polymer lithium-ion batteries: the metal electrode coating is not uniform and the processing technology is relatively rough. Another reason may be the problem of overcharging and overdischarging. Li-ion battery bulge reasons: 1. Bulge caused by overcharge Overcharging will cause all the lithium atoms in the positive electrode material to run into the negative electrode material, causing the originally full grid of the positive electrode to deform and collapse, which is also an important reason for the decline in the power of the lithium-ion battery. In this process, there are more and more lithium ions in the negative electrode, and the excessive accumulation makes the lithium atoms grow out of the tree stump crystals, which makes the lithium ion battery swell. 2. Bulge caused by over discharge During the first charge and discharge of the...