Die-cutting lamination system and method

A lamination and cutting technology, applied in electrochemical generators, electrical components, climate sustainability, etc., can solve the problem that the speed of lamination cannot be substantially improved, reduce the speed of manipulator feeding, maintenance costs, energy consumption, etc. Problems such as large consumption, to achieve the effect of reducing the risk of diaphragm folds and outer drain electrodes, small space occupancy, and breaking through the limitations of mechanical structures
CN110380128AActive Publication Date: 2019-10-25SVOLT ENERGY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SVOLT ENERGY TECHNOLOGY CO LTD
Publication Date
2019-10-25

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Abstract

The invention provides a die-cutting lamination system and method. The system comprises an unwinding mechanism, a pole roll cutting mechanism, a preheating rolling device, a detection device, a diaphragm cutting mechanism and a lamination device, and is characterized in that a negative pole cutting mechanism is matched with a negative pole unwinding mechanism and cuts a negative pole piece, a positive pole cutting mechanism is matched with a positive pole unwinding mechanism and cuts a positive pole piece, and the lamination of the negative pole piece and the positive pole piece on the upper and lower sides of a diaphragm is obtained; the preheating rolling device enables the positive pole piece and the negative pole piece of the lamination to be adhered to the diaphragm; the detection device detects whether the lamination has a defect or not; a first diaphragm cutting mechanism cuts and discharges defective lamination units in pairs, a second diaphragm cutting mechanism carries out diaphragm cutting on the last qualified lamination unit based on the number of layers of the lamination; and the lamination device enables the positive and negative pole lamination units and diaphragm lamination units to be alternately laminated. The system has the advantages of relatively simple structure, high lamination speed, low failure rate, small number of diaphragm cutting times of the system and low risk of exposing pole pieces by diaphragm folds.
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Description

technical field

[0001] The invention relates to the technical field of batteries, in particular to a die-cut lamination system and method. Background technique

[0002] In the environment of the automobile industry using traditional energy as power supply, the problem of environmental pollution has aroused people's attention to environmental protection and resource utilization. Actively developing new energy vehicles and realizing the electrification of the automobile industry is a strategic measure to achieve the goal of "overtaking on curves" in foreign automobile industries. Lithium-ion device technology is a key technology for the development of electric vehicles. The square lamination technology is one of the most advanced lithium-ion battery manufacturing technologies at present. Among them, the lamination speed directly determines the production capacity of the whole line and the manufacturing cost of the battery cell.

[0003] At present, most of them use the z-typ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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