Laminated Cell Separator Segmentation for Production Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The traditional preparation process of laminated-type lithium-ion batteries using a Z-shaped separator is complex and time-consuming, requiring frequent cutting of the separator, which reduces production efficiency and durability.
Innovation Solution
A method involving a laminated pack with multiple electrode plate assemblies and spacers positioned in a Z-shaped separator, where the separator is broken at the end of each spacer to separate the laminated groups, allowing for the efficient formation of multiple laminated cells with improved production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the traditional Z-shaped separator mode is used to prepare laminated cells, then each cell can be formed with proper separator structure, but the preparation process becomes complex and time-consuming due to frequent separator cutting
Solution Approach 1:
The separator is designed with pre-formed cutting lines that segment the separator into multiple sections. These cutting lines allow the separator to be easily divided into individual cell components without complex cutting operations, thus maintaining separator integrity while improving production efficiency
Solution Approach 2:
The cutting lines are pre-formed on the separator before assembly, allowing the separator to be prepared in advance with designated separation points. This preliminary action eliminates the need for complex real-time cutting operations during cell preparation, reducing auxiliary time and improving productivity
2Quantity of substance
If frequent separator cutting is performed to prepare individual cells, then multiple cells can be produced from one separator, but the auxiliary time increases and device complexity increases
Solution Approach 1:
The separator incorporates pre-formed cutting lines that divide it into multiple sections, allowing one separator to be easily divided into multiple cell components. This segmentation enables production of multiple cells while minimizing the time and complexity of the cutting process
Solution Approach 2:
The pre-formed cutting lines act as intermediaries that facilitate the separation of the separator into individual cell components. These cutting lines provide a simple mechanical separation mechanism that reduces auxiliary time and device complexity compared to traditional cutting methods
3Ease of operation
If traditional separator cutting methods are used, then individual cells can be separated, but the durability and performance of the cutting device deteriorate due to frequent use
Solution Approach 1:
The separator is pre-segmented with cutting lines that allow for easy mechanical separation without requiring durable, complex cutting devices. This segmentation enables simple cell separation while reducing wear and tear on cutting equipment, thereby improving device durability
Data Source
AI summary
The present disclosure provides a preparation method of a laminated cell comprising: providing a laminated pack: the laminated pack comprises n laminated groups, the each laminated group comprises m electrode plate assemblies, a spacer is provided between the adjacent laminated groups, the electrode plate assemblies of all the laminated groups of the laminated pack and the spacers between the adjacent laminated groups are orderly positioned in a Z-shaped separator in a laminating direction, an upper part and a lower part of the separator adjacent to the each spacer are separated by the each spacer; forming a laminated cell: the separator is broken at an end of the each spacer positioned in the separator to allow the each spacer and the each laminated group to separate from each other, so as to obtain the corresponding laminated cell formed by the electrode plate assembly of the each laminated group and the corresponding separator.