Laminated Cell Zigzag Folding for High-Speed Electrode Stacking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional methods for preparing laminated cells are complicated and have low production efficiency, making them unsuitable for mass production.
Innovation Solution
A method involving laying out electrodes and separators to form a composite lamination, pressing to create a staggered lamination, and folding in a zigzag manner to simplify the process, eliminating the need for cutting and trimming operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional cutting and stacking method is used to prepare laminated cell, then the cell structure can be formed, but the preparation process becomes complicated and production efficiency decreases
Solution Approach 1:
The patent combines multiple preparation steps (cutting, stacking, aligning) into a single continuous laying process where electrodes and separators are laid out simultaneously in a staggered pattern, eliminating the need for separate cutting and stacking operations and significantly simplifying the manufacturing process
Solution Approach 2:
The patent performs preliminary arrangement of electrodes and separators in a specific staggered pattern before final assembly, with the laying process pre-positioning all components in their final configurations, thereby eliminating subsequent complex adjustment and stacking operations
2Productivity
If traditional cutting and stacking method is used, then the laminated cell can be assembled, but the preparation time increases and mass production becomes difficult
Solution Approach 1:
The patent implements a continuous laying process where electrodes and separators are continuously fed and positioned without interruption, eliminating the stop-start nature of traditional cutting and stacking methods, thereby enabling sustained high-speed production suitable for mass manufacturing
Solution Approach 2:
The patent divides the laying process into distinct functional zones (feeding zone, positioning zone, pressing zone) that operate simultaneously and continuously, allowing different stages of preparation to occur in parallel and significantly reducing total preparation time
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method significantly improves production efficiency, allowing for rapid and cost-effective mass production of laminated cells with enhanced compactness and quality.
Implementation Method 1
heating the composite lamination, such that a hot-melt adhesive adhered to the separator melts
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
The present disclosure provides a method of preparing a laminated cell, a laminated cell, a laminating device and system, and relates to the technical field of battery cell preparation. The method of preparing a laminated cell provided in an embodiment of the present disclosure comprises: laying out a plurality of first electrodes successively and intervally between two separators along a first direction, such that the plurality of first electrodes and the two separators form together an internal layer; laying out a plurality of second electrodes successively on two surface sides of the internal layer along the first direction with the second electrodes on one surface side and the second electrodes on the other surface side placed alternately, such that the plurality of second electrodes and the internal layer form together a composite lamination, wherein each of the second electrodes is parallel to a respective first electrode; pressing the composite lamination, hereby forming a staggered lamination; and folding the staggered lamination in a zigzag manner. The method of preparing a laminated cell provided in the embodiment of the present disclosure simplifies the preparation process of laminated cells, significantly improves the production efficiency, and is suitable for mass production.