Summary of the invention
The object of the present invention is to provide lithium battery priming device and technology thereof, can effectively solve existing battery liquid-filling and need take a long time the problem that production efficiency is low.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: lithium battery priming device, comprise vacuum (-tight) housing, base, closely be set together by dense block between described vacuum (-tight) housing and the base, described vacuum (-tight) housing is provided with vacuum tube and normal pressure siphunculus, be connected with vacuum meter on the vacuum tube, also be provided with first electromagnetically operated valve between vacuum meter and the vacuum tube, described normal pressure siphunculus is provided with second battery valve, also be provided with high-voltage tube on the described vacuum (-tight) housing, described high-voltage tube is provided with the 3rd electromagnetically operated valve, is provided with Pressure gauge between the 3rd electromagnetically operated valve and the vacuum (-tight) housing on the described high-voltage tube.
Preferably, also be provided with the vacuum barrier valve on the described vacuum tube, described vacuum meter is arranged between vacuum barrier valve and the vacuum (-tight) housing; Better keep internal vacuum
Preferably, described vacuum (-tight) housing bottom is provided with annular ledge, and described dense block comprises that at least one is arranged on the mount pad on the base, and described mount pad is provided with movable plug, and described plug one end is buckled on the lug; The simple hermetically-sealed construction that uses.
Preferably, the other end of described plug is connected with cylinder; Promote plug by cylinder, safe and reliable.
Preferably, be provided with sealing ring between described vacuum (-tight) housing and the base; Further strengthen overall tightness.
Adopt the lithium battery liquid injection process of above-mentioned lithium battery priming device, may further comprise the steps successively:
A. the lithium battery that will put into electrolyte is placed on vacuum (-tight) housing, closes dense block;
B. will be evacuated down to-0.05 MPa in the vacuum (-tight) housing, and kept 8 seconds to 12 seconds to-0.07 MPa;
C. make to return to normal atmosphere (An) in the vacuum (-tight) housing, close first electromagnetically operated valve;
D. in vacuum (-tight) housing, inject the nitrogen of 0.3 MPa to 0.5 MPa, and kept 1 minute to 2 minutes;
E. make and return to normal atmosphere (An) in the vacuum (-tight) housing, will be evacuated down to-0.01 MPa in the vacuum (-tight) housing again to-0.03 MPa;
F. make return to normal atmosphere (An) in the vacuum (-tight) housing after, open dense block, lithium battery is taken out after rising vacuum (-tight) housing.
Preferably, will be evacuated down to-0.06 MPa in the vacuum (-tight) housing among the described step B, and kept 10 seconds; In vacuum (-tight) housing, inject the nitrogen of 0.4 MPa among the described step D;-0.02 MPa will be evacuated down in the described step e in the vacuum (-tight) housing; The parameter that electrolyte is absorbed by battery preferably.
Compared with prior art, advantage of the present invention is: add high pressure, high-purity nitrogen, quicken the battery Electolyte-absorptive, the whole fluid injection time only needs a few minutes, has improved efficient greatly.
Embodiment
Consult the embodiment of Fig. 1 for lithium battery priming device of the present invention, comprise vacuum (-tight) housing 1, base 2, closely be set together by dense block between described vacuum (-tight) housing 1 and the base 2, described vacuum (-tight) housing 1 is provided with vacuum tube 3 and normal pressure siphunculus 4, be connected with vacuum meter 5 on the vacuum tube 3, also be provided with first electromagnetically operated valve 6 between vacuum meter 5 and the vacuum tube 3, described normal pressure siphunculus 4 is provided with second battery valve 7, also be provided with high-voltage tube 8 on the described vacuum (-tight) housing 1, described high-voltage tube 8 is provided with the 3rd electromagnetically operated valve 9, be provided with Pressure gauge 10 between the 3rd electromagnetically operated valve 9 and the vacuum (-tight) housing 1 on the described high-voltage tube 8, also be provided with vacuum barrier valve 11 on the described vacuum tube 3, described vacuum meter 5 is arranged between vacuum barrier valve 11 and the vacuum (-tight) housing 1, described vacuum (-tight) housing 1 bottom is provided with annular ledge 12, described dense block comprises that at least one is arranged on the mount pad 13 on the base 2, described mount pad 13 is provided with movable plug 14, described plug 14 1 ends are buckled on the lug 12, the other end of described plug 14 is connected with cylinder 15, is provided with sealing ring 16 between described vacuum (-tight) housing 1 and the base 2.
Adopt the lithium battery liquid injection process of above-mentioned lithium battery priming device, may further comprise the steps successively: the lithium battery that A. will put into electrolyte is placed on vacuum (-tight) housing 1, closes dense block; B. will be evacuated down to-0.06 MPa in the vacuum (-tight) housing 1, and kept 10 seconds; C. make in the vacuum (-tight) housing 1 and return to normal atmosphere (An), close first electromagnetically operated valve 6; D. in vacuum (-tight) housing 1, inject the nitrogen of 0.4 MPa, and kept 1 minute to 2 minutes; E. make in the vacuum (-tight) housing 1 and return to normal atmosphere (An), will be evacuated down to-0.02 MPa in the vacuum (-tight) housing 1 again; F. make return to normal atmosphere (An) in the vacuum (-tight) housing 1 after, open dense block, lithium battery is taken out after rising vacuum (-tight) housing 1.
The above only is specific embodiments of the invention, but technical characterictic of the present invention is not limited thereto, and any those skilled in the art is in the field of the invention, and the variation of being done or modify all is encompassed among the claim of the present invention.