Vertical packaging machine for soft package battery

Abstract

The invention discloses a vertical packaging machine for a soft package battery. The vertical packaging machine comprises a loading and unloading mechanism, a packaging mechanism, a gas-liquid separation system and an electric control device, wherein the loading and unloading mechanism is used for carrying out vertical clamping and transporting on the soft package battery which is processed through a pre-sealing procedure; the packaging mechanism is arranged at the upper part of the loading and unloading mechanism for carrying out secondary packaging on the soft package battery; the gas-liquid separation system communicates with the packaging mechanism; and the electric control device controls the mechanisms and the system to achieve the packaging process. The vertical packaging machine for the soft package battery is ingenious in design, is more reasonable in control principle, structure configuration and operation mode, and is high in automatic degree; the problems of waste of an electrolyte in the past and incomplete air extraction since an air bag of a battery cell cannot be effectively punctured are solved; and guarantee of the quality of the battery cell is facilitated. When the vertical packaging machine works, the electrolyte mixed into the extracted gas can be separated and recycled; and the corrosion condition since the electrolyte enters a vacuum generator is avoided. The vertical packaging machine is rapid in action, high in efficiency and simple and convenient to operate; and the production efficiency of the soft package battery is improved.

Description

technical field [0001] The invention relates to a lithium battery production equipment. Background technique [0002] Among the three important configurations of soft pack batteries (soft pack batteries), the square stacked type (commonly known as "soft pack") has better heat dissipation performance and uniform current density distribution on the plate than the cylindrical winding type and square winding type. Excellent performance and light weight, so it has a wider range of applications. [0003] In the production process of soft-pack batteries, it is necessary to inject electrolyte into the cell air bag, and then seal the opening of the cell air bag after the injection (pre-sealing process); in the second sealing process, in the past, the Manually lay the cell air bag flat for vacuuming operation. At this time, a considerable part of the electrolyte in the cell air bag will be pumped out, which will directly affect the quality of the finished battery and cause production...

AI Technical Summary

Problems solved by technology

[0003] In the production process of soft-pack batteries, it is necessary to inject electrolyte into the cell air bag, and then seal the opening of the cell air bag after the injection (pre-sealing process); in the second sealing process, in the past, the Manually lay the cell air bag flat for vacuuming operation. At this time, a considerable part of the electrolyte in the cell air bag will be pumped out, which will directly affect the quality of the finished battery and cause production yield problems.

Moreover, since the electrolyte remains in the packaging position of the secondary packaging, poor packaging is prone to occur

[0004] In the packaging equipment of the prior art, the cell air bag after liquid injection is often placed flat in the fixture for packaging. Under this working condition, electrolyte leakage is prone to occur. While affecting the quality of the battery product, the leaked electrolyte The liquid will corrode the equipment and damage the parts

It is difficult to guarantee the post-production service life and reliability of poorly packaged pouch batteries

Images