Electrode Magazine Separation Using Recyclable Prevention Sheets
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Solution Overview
Problem
Existing methods of manufacturing secondary batteries fail to properly separate electrodes during the manufacturing process, leading to defects in the final product.
Innovation Solution
An electrode supply device and method are used to separate electrodes by using a first and second electrode supply device, including a stuck-electrodes prevention sheet, to prevent electrode separation during the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a plurality of single sheet-type electrodes are stacked in a magazine during the manufacturing process, then the manufacturing efficiency is improved, but the electrodes are not properly separated leading to defects
Solution Approach 1:
A separation sheet is introduced as an intermediary element between stacked electrodes in the magazine. This thin sheet prevents direct contact between electrode surfaces, eliminating the sticking problem while allowing electrodes to be stored and supplied in bulk, thus maintaining high manufacturing efficiency without compromising electrode separation reliability.
Solution Approach 2:
The magazine storage system is segmented into individual electrode positions with separation sheets between each electrode. This segmentation allows each electrode to be independently identified and supplied, preventing mass sticking while enabling efficient batch storage and sequential retrieval of electrodes during manufacturing.
2Device complexity
If electrodes are stacked closely in the magazine to save space, then the device complexity is reduced, but electrode separation becomes difficult causing manufacturing defects
Solution Approach 1:
Separation sheets serve as simple intermediary elements that can be easily integrated into the existing magazine structure without adding complex mechanisms. These sheets maintain adequate spacing between electrodes while using minimal space, achieving both compact magazine design and reliable electrode separation for precise manufacturing.
3Ease of manufacture
If electrodes are supplied without separation sheets, then the manufacturing process is simpler, but electrode sticking occurs causing defects
Solution Approach 1:
The separation sheets are designed to be automatically supplied and positioned between electrodes during the normal manufacturing process. This self-service mechanism eliminates the need for additional manual intervention or complex separation systems, maintaining process simplicity while ensuring reliable electrode separation through the automatic action of separation sheets.
Data Source
AI summary
A manufacture of an electrode assembly in which first electrodes and second electrodes are alternately arranged between folded separators is described. The electrodes are stacked and stored in a magazine unit, and the plurality of electrodes are stored in a stacked manner. By disposing a stuck-electrodes prevention sheet between electrodes, the electrodes can be easily separated without sticking, and the stuck-electrodes prevention sheet removed after the electrodes are separated can be recycled.