The electrolyte used in a lithium battery is an organic system. As an organic liquid, like a grease, it becomes viscous or even condensed at a low temperature. At this time, the activity of the conductive lithium salt is greatly limited, so that the charging efficiency is low. Therefore, the lithium battery is charged slowly at a low temperature, and the charge is not full, and the discharge is also the same. As a lithium battery, the state of charge and discharge is not only a change in the direction of current flow, but also some changes in the shape of the internal positive and negative materials. These changes are crystal changes caused by different lithium insertion, if not fully charged (or discharge), then the electrode material will swing in a different range of different shapes to affect the stability of the material itself? In this regard, is it the same as high temperature? The low temperature performance of the minimum lithium manganate battery is caused by the precipitation of manganese ions in the high temperature state of the lithium manganate battery, resulting in defects in the crystal of the positive electrode material.