- Jan 05, 2018-
Protective measures, lithium battery core overcharge to the voltage above 4.2V, will begin to produce side effects. The higher the charge pressure, the higher the risk. Lithium battery core voltage is higher than 4.2V, the cathode material left in the number of lithium atoms less than half, at this time the storage lattice often collapse, so that the capacity of the cell to produce a permanent decline. If it continues to recharge, the lithium metal will accumulate on the surface of the anode material as the cathode's cell is filled with lithium atoms. These lithium atoms grow dendritic crystals in the direction of lithium ions from the surface of the cathode.