Lithium battery high-speed stacking method

Abstract

The invention discloses a lithium battery high-speed stacking method, comprising: a diaphragm unwinding mechanism, a rotating stacking mechanism, a feeding mechanism and a stacking table mechanism, wherein the diaphragm unwinding mechanism performs deviation correction, tension adjustment and quantitative unwinding of the diaphragm , through the feeding mechanism, the pole piece is accurately conveyed to the transfer adsorption roller of the rotating lamination mechanism, and the positive and negative electrode piece transfer adsorption rollers are again conveyed to the pole piece bonding adsorption roller through vacuum adsorption, and the pole piece bonding adsorption roller is set There are pole piece diaphragm grippers, and the pole piece is attached to the adsorption roller to drive the pole piece to rotate to a position tangent to the diaphragm. The pole piece diaphragm gripper on the roller will continue to rotate after clamping the pole piece and the diaphragm. The lamination table mechanism presses and fixes the diaphragm and the pole piece after folding, and completes a pole piece folding and fixing process; the lamination process of the present invention is a continuous rotational movement, which greatly improves the effectiveness of the product efficiency.

Description

technical field [0001] The invention relates to the field of lithium battery processing equipment, in particular to a high-speed lamination method for lithium batteries. Background technique [0002] With the rapid development of society, due to the disadvantages of light weight, high energy storage density, long service life, low self-discharge and environmental protection, lithium batteries are used in many digital products such as electric bicycles and notebook computers; [0003] As we all know, the manufacturing process of lithium batteries includes the lamination process of battery pole pieces. Lithium battery lamination technology is to use separators to separate the positive and negative electrode sheets, and sequentially stack them to make lithium battery cells. Technology; its basic principle and working process are: use the diaphragm assembly to pull out the rolled diaphragm, and fold the diaphragm into a Z shape through the reciprocating motion of the stacking ta...

AI Technical Summary

Problems solved by technology

[0003] As we all know, the manufacturing process of lithium batteries includes the lamination process of battery pole pieces. Lithium battery lamination technology is to use separators to separate the positive and negative electrode sheets, and sequentially stack them to make lithium battery cells. Technology; its basic principle and working process are: use the diaphragm assembly to pull out the rolled diaphragm, and fold the diaphragm into a Z shape through the reciprocating motion of the stacking table or diaphragm assembly. The sheets are alternately placed between the folded diaphragms, and the positive and negative electrode sheets are separated by the diaphragm; the above process is repeated repeatedly, and finally a lithium battery cell with a certain thickness is formed; in the actual working process, first use the pick-and-place The suction cup of the mechanism sucks the battery pole piece from the material box, and then transports it to the corresponding positioning platform. When the pole piece needs to be stacked, use the pick-and-place mechanism to suck the pole piece from the positioning platform again, and transport it to the stacking platform. Unloading; in the prior art, the above operations need to be completed on one workbench, the waiting time is long, and the servo operation is complicated, which is not conducive to improving the efficiency of lamination processing

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