Liquid injection device and processing equipment

The invention discloses a liquid injection device and processing equipment. The liquid injection device comprises a liquid storage container, a first liquid injection mechanism and a second liquid injection mechanism. The liquid storage container is used for storing an electrolyte. The first liquid injection mechanism is connected with the liquid storage container, and is used for injecting the electrolyte in the liquid storage container into a core package. The second liquid injection mechanism is connected with the liquid storage container, and is used for injecting the electrolyte in the liquid storage container into a containing cavity of a shell, so that when the core package is impregnated when contained in the containing cavity. Compared with manual impregnation or impregnation on an impregnation machine in the prior art, the mode in which the first liquid injection mechanism and the second liquid injection mechanism inject electrolyte into the core package and the containing cavity of the shell is rap