Soft pack battery module assembly method

Abstract

The invention provides a method for assembling a pouch battery module and relates to the technical field of batteries. It includes the following steps: S1, integrally forming a continuous reverse-S-shaped aluminum plate and a hollow aluminum shell frame with openings at both ends; S2, a group of soft-packed batteries, from the upper side, the lower side, the left gap, and the right side of the continuous reverse-S-shaped aluminum plate The gap is placed in the continuous reverse S-shaped aluminum plate, and the contact surface of the soft-packed battery cell and the continuous reverse-S-shaped aluminum plate is coated with a layer of liquid silica gel; the soft-packed battery cell is placed in the continuous reverse S-shaped aluminum plate and wrapped with tape; S3, Packing The final soft-pack battery is inserted into the aluminum shell frame as a whole. S4. Glue is poured into the internal gap of the aluminum shell frame. After the glue is poured, both ends of the module are fixed. After the module is cured, the integrated cover plate, insulating plate, insulating cover plate and fixed end plate are assembled. The assembly steps of the module are simple, and the batteries are integrally inserted into the outer frame of the aluminum shell, which reduces the operating procedures during battery installation, reduces the labor intensity of operators, improves work efficiency, and stabilizes product quality.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method for assembling a pouch battery module. Background technique [0002] With the rapid development of new energy vehicles, most of the new energy vehicles at this stage are pure electric vehicles or hybrid vehicles that use lithium-ion batteries as electric energy storage devices. Due to the characteristics of lithium-ion batteries, hard-shell batteries with steel shells, aluminum shells, and plastic shells generally have potential safety hazards of explosion. Due to the advantages of high safety, high energy density, and long life, soft-pack batteries have gradually replaced hard-shell batteries. [0003] There are generally two methods for grouping pouch batteries. One method is to alternately arrange the fixed bracket and the single cell, the frame of the fixed bracket is designed to fasten the force-bearing mechanism, a certain number of repeating units plus the hea...

AI Technical Summary

Problems solved by technology

[0004] However, the method of grouping pouch batteries in the prior art generally has many accessories in the grouping method, the volumetric energy density is low, the assembly and fixing of the module is cumbersome, and the fixing effect of the battery cells is not good enough to easily cause loosening and vibration damage.

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