Pole piece splicing mechanism and pole piece splicing method

Abstract

The invention relates to the technical field of lithium battery production related equipment, in particular to a pole piece splicing mechanism and a pole piece splicing method. The pole piece splicingmechanism comprises a splicing platform, a first passing roller, a second passing roller, a first pressing roller, a second pressing roller and a control circuit, and the control circuit comprises afirst pressing roller driving circuit, a second pressing roller driving circuit, a passing roller driving circuit and a main circuit. According to the pole piece splicing mechanism and the pole piecesplicing method, pole roll tailings are driven to be discharged on the splicing platform in such way that the first pressing roller and the first passing roller are used for clamping and then drivingis performed, so that equipment tension is consistent, and the scrapped length of the pole roll tailings is effectively reduced, the pair of passing rollers are symmetrically arranged on the splicingplatform left and right, the first passing roller at the left end and the first pressing roller above clamp an old pole piece, and the second passing roller at the right end and the second pressing roller above clamp a new pole piece, so that pole piece position adjustment is facilitated during slicing, and it is guaranteed that during changing and splicing of the pole rolls of the pole pieces, the pole pieces are not wrinkled and broken and do not seriously deviate, and the scrap amount of the tailings is low.

Description

technical field [0001] The invention relates to the technical field of equipment related to lithium battery production, in particular to a pole piece connecting mechanism and a pole piece connecting method. Background technique [0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. Lithium batteries generally need to be used together with electrode sheets, and the electrode sheets must go through the process of changing the pole roll and connecting the tape during production and processing. At present, most of the institutions that perform this process on the market are ordinary splicing platforms. Common splicing platforms are prone to wrinkling of the pole pieces, broken strips, serious deviation, and scrapped tailings when the electrode rolls are reloaded and spliced. High amount of defects. And above-mentioned various deficiencies, also just the problem to be...

AI Technical Summary

Problems solved by technology

At present, most of the institutions that perform this process on the market are ordinary splicing platforms. Common splicing platforms are prone to wrinkling of the pole pieces, broken strips, serious deviations, and scrapped tailings when the electrode rolls are reloaded and spliced. high amount of defects

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