Soft package lithium cell turntable liquid injection device with liquid leakage prevention function

Abstract

The invention discloses a soft package lithium cell turntable liquid injection device with a liquid leakage prevention function, and particularly relates to the technical field of lithium battery processing, the soft package lithium cell turntable liquid injection device comprises a mounting base, the upper surface of the mounting base is fixedly connected with the bottom end of a support frame, and the top end of the support frame is fixedly connected with the lower surface of a top plate; the upper surface of the top plate is fixedly connected with the lower surface of a fixing frame, and the lower surface of the fixing frame is fixedly connected with a driving device. By arranging the tooth grooves, the tooth blocks, the elastic telescopic rods, the rotating disc and the guide rods and arranging the pulleys at the bottoms of the guide rods, it is guaranteed that the guide rods are not prone to hard friction with the rotating disc in the rotating process of the rotating disc, the stability of the rotating disc during operation is guaranteed, and meanwhile when a lithium battery cell is machined, the machining efficiency is improved. According to the liquid injection device for the lithium battery cell, bubbles in the lithium battery cell can be effectively eliminated, the lithium battery cell does not need to be subjected to standing treatment for a long time, the processing efficiency of the liquid injection device on the lithium battery cell is improved, and meanwhile, the effect of guaranteeing the processing quality of the lithium battery cell is achieved.

Description

technical field [0001] The invention relates to the technical field of lithium battery processing, and more particularly, the invention relates to a liquid injection device for a soft-pack lithium battery cell turntable with an anti-leakage function. Background technique [0002] The soft-pack lithium battery is just a liquid lithium ion battery covered with a layer of polymer shell, and the structure is packaged with aluminum-plastic film. In the event of a potential safety hazard, the soft-pack battery will only swell and crack at most. Because the soft-pack lithium battery has It has good safety performance and soft-packed batteries do not explode like steel-shelled aluminum-shelled batteries. At the same time, soft-packed batteries are 40% lighter than steel-shelled lithium batteries of the same capacity and 20% lighter than aluminum-shelled batteries. It is gradually playing an important role in the current processing and production. [0003] Chinese patent document (C...

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Problems solved by technology

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a soft-packed lithium battery turntable liquid injection device with the function of preventing liquid leakage. The technical problem to be solved by the present invention is: when processing the soft-packed lithium battery, use Liquid injection under normal pressure is easy to generate air bubbles in the battery cell, these bubbles will occupy the volume of the battery cell, so that the injection volume of the electrolyte is insufficient, if not removed, it will affect the capacity and electrical performance of the lithium battery, making the lithium battery The quality has declined. At present, the air bubbles in lithium battery cells are often treated by standing still. However, the standing time is generally longer, which limits the production efficiency of soft-pack lithium batteries, and it is difficult to guarantee the processing quality of soft-pack lithium batteries. , and when the liquid injection equipment processes the soft-packed lithium battery, the automatic liquid injection method is generally used. However, in the actual operation process, manual intervention is required in the processing process of the lithium battery through the production line, and it is difficult to achieve the effect of full-line automation. Not only is it not conducive to the automatic processing of lithium batteries, but the production process is complicated and cumbersome, which increases the cost of producing lithium batteries

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