Pole piece coating and diaphragm compounding all-in-one machine and method

Through the high-precision control and direct connection process of the integrated machine of the electrode sheet coating and diaphragm, the problems of tension fluctuations and alignment deviations in the traditional process are solved, the composite consistency between the electrode sheet and diaphragm and the battery performance are improved, and the production cost is reduced.

CN120473541APending Publication Date: 2025-08-12国兴(东莞)新能源科技有限公司
0 Cites 1 Cited by

Patent Information

Application Number
CN202510441051.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

There are problems in the traditional electrode sheet and diaphragm composite process that lacks adhesive force, tension deformation and insufficient alignment accuracy caused by fluctuations in tension, which affects battery performance and production efficiency.

Method used

The integrated machine design is adopted, including diaphragm unwinding, deviation correction, tension control, coating, curing, alignment detection and thermal composite mechanism. Through high-precision control and optimization of interface composite technology, the efficient direct connection between the pole sheet and the diaphragm is achieved to avoid tension fluctuations and alignment deviations.

Benefits of technology

It significantly improves the consistency and reliability of composite electrode sheets, improves battery performance, reduces the impact of winding and expansion processes on the performance of coated electrode sheets, and reduces material transport costs.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to the technical field of pole piece manufacturing, in particular to a pole piece coating and diaphragm compounding all-in-one machine which comprises a first diaphragm unreeling mechanism, a second diaphragm unreeling mechanism and a coating mechanism, the first diaphragm correcting mechanism is used for correcting the unwound first diaphragm coiled material; the first diaphragm tension control mechanism is used for monitoring and controlling the tension of the unwound first diaphragm coiled material; a pole piece unwinding mechanism; a pole piece coating mechanism; a pole piece curing mechanism; the pole piece tension control mechanism is used for monitoring and controlling the tension of the coated pole piece coiled material; the layering guide mechanism is used for guiding and layering the unreeled first diaphragm coiled material and the coated pole piece coiled material; the alignment detection mechanism is used for detecting the vertical alignment degree; the thermal compounding mechanism is used for carrying out thermal compounding operation on the layered material to form a composite pole piece; and the winding mechanism is used for winding the composite pole piece. The device has the effects that the consistency and reliability of the composite pole piece are improved, and meanwhile, the influence of winding and stentering procedures on the performance of the coated pole piece is reduced.
Need to check novelty before this filing date? Find Prior Art