An assembly device and assembly method suitable for assembling a square lithium battery pole group

Abstract

The invention discloses an assembly device and an assembly method suitable for a square lithium battery pole group. The assembly device includes a cover plate, an insulating stop frame, and a protective film, and the battery core inside is fixed through a "trinity" rational assembly, and can prevent Positive and negative electrodes, positive electrode and casing, and negative electrode and casing are short-circuited inside. The main body of the protective film is made of PE material to protect the surface of the electrode group. On the other hand, it isolates the electrode group and the casing to prevent the casing from being charged. Insulation effect. There are small holes on both sides of the upper part of the protective film, and the insulating stop frame passes through the hole, so that the insulating stop frame and the protective film are integrated. The insulating stop frame is divided into two parts, left and right, connected with the protective film, and the left and right The connection adopts the method of "slot extrusion and insertion" to simplify the assembly process. There is a fixed slot at the bottom of the cover plate, and the insulating stop frame is designed to pass through the slot to realize the "trinity" of the cover plate, protective film, and insulating stop frame.

Description

technical field [0001] The invention relates to the field of lithium ion batteries, in particular to an assembly device and an assembly method suitable for assembling square lithium battery pole groups. Background technique [0002] At present, new energy vehicles are developing at full speed. For the main components of new energy vehicles, lithium batteries, all automobile manufacturers have put forward strict requirements, both in terms of quality and quantity. The manufacturing process of lithium batteries is also becoming more and more simplified and automated, and the assembly in the manufacturing process has always been less automated due to its many operating steps, many and small internal structural parts, and high requirements. More human resources are required. Therefore, improving the efficiency of the assembly process has become an important means to increase the production capacity of the lithium battery industry. [0003] Square lithium batteries have the cha...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an assembly device and an assembly method for solving the vibration problem of the internal winding core of a lithium-ion power battery during operation

Images