High-efficiency lithium battery cell lamination machine

Abstract

The invention discloses a high-efficiency lithium battery cell lamination machine which comprises a machine table, a plurality of groups of lamination mechanisms, a pole piece incoming material conveying device, a pole piece calibration device and a pole piece taking and carrying device, and each group of lamination mechanism comprises a lamination table and a diaphragm conveying and laying device; the supplied pole piece conveying device comprises a positive pole piece conveying line and a negative pole piece conveying line; the pole piece calibration device comprises a positive pole piece calibration table and a negative pole piece calibration table; the pole piece taking and carrying device comprises a plurality of groups of taking mechanisms and taking driving mechanisms; and the pole piece taking plates in each group of taking mechanism are arranged at equal intervals and are equal to the arrangement intervals of the positive pole piece conveying line, the positive pole piece calibration table, the stacking table, the negative pole piece calibration table and the negative pole piece conveying line. The lithium battery cell lamination machine is based on a plurality of groups of lamination mechanisms, and adopts a function module sharing arrangement mode, so that the production efficiency is improved, the equipment structure is simplified, the equipment size is reduced, and the cost performance of the lithium battery cell lamination machine is improved.

Description

technical field [0001] The invention relates to a lithium battery processing equipment, in particular to a high-efficiency lithium battery cell stacking machine. Background technique [0002] Lithium batteries are currently the most popular new energy devices, and in the battery assembly process, the assembly of lithium battery cells is one of the most important processes. Lithium battery cell assembly has three basic requirements: 1. The negative electrode completely wraps the positive electrode; 2. The separator completely wraps the pole piece coating; 3. The center of the positive and negative electrode pieces is aligned. Therefore, the lithium battery cell assembly technology is divided into two technical routes: winding and lamination. Among them, due to the small size of the lamination forming process, the high energy density, and the increasingly guaranteed safety and reliability, the lamination method is used in lithium battery cells. The production process of t Am...

AI Technical Summary

Problems solved by technology

However, the existing Z-shaped lamination methods all use a single stacking table with a single roll diaphragm conveying and laying device, so the production efficiency is not high, and it is not as good as the production speed of multiple stacking tables and thermal lamination process

If in order to increase the production speed, simply copy multiple sets of single-stacking tables with single-roll diaphragm conveying and laying devices, the production equipment will become particularly complicated, and the cost performance is not high, so this also restricts the use of multiple sets of single-stacking tables with single rolls The development of the process of diaphragm conveying and laying device

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