The invention relates to the technical field of power
supply energy storage, in particular to a protective shell for a
lithium battery cell and a use method thereof. The invention aims to solve the technical problems of general protection capability, small application range and inconvenient replacement of a
battery cell. In order to solve the technical problems, the protective shell for the
lithium battery cell and the using method of the protective shell are provided, the protective shell is composed of a base, a limiting mechanism and a fixing mechanism, after a first fixing base is sleeved with the protective shell, the battery
cell can eject a second fixing base upwards, under the action of a second spring, a second fixing base can press the battery
cell, therefore, fixation is performed; the protective shell is ingenious in structure, a baffle is installed on the protective shell, then a fixing strip slides downwards, then the baffle is fixed through a positioning bolt on a fixing plate and a positioning pin on a limiting plate, when the battery
cell needs to be replaced, the baffle is detached, then a fixing bolt on an auxiliary fixing frame is unscrewed, then the auxiliary fixing frame slides, and then the battery cell is taken down for replacement.