Stamp Oil Applicator for Targeted Electrode Plate Notching
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Solution Overview
Problem
The existing manufacturing process for electrode plates in secondary batteries faces issues such as excessive operating costs due to unnecessary application of punching oil, long drying times, and clogging of scrap discharge pipes caused by excessive punching oil application.
Innovation Solution
A method and apparatus for applying punching oil to specific regions of the electrode plate using a stamp block with a pad, allowing precise application of the oil only where needed, thereby optimizing the amount used and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If punching oil is sprayed onto the entire uncoated portion, then adhesion prevention during mold notching is improved, but operating costs increase due to excessive oil application
Solution Approach 1:
The patent applies punching oil only to specific regions where adhesion prevention is needed (cutting section and boundary regions) rather than the entire uncoated portion. The stamp block is designed with oil application sections that correspond precisely to the cutting section and electrode section boundary regions, leaving the non-electrode section without oil application. This localized approach maintains adhesion prevention where required while eliminating waste in areas where the mold cannot reach.
2Reliability
If punching oil is applied to the entire uncoated portion, then adhesion prevention is improved, but drying time increases
Solution Approach 1:
The patent reduces drying time by applying punching oil only to the cutting section and boundary regions where adhesion prevention is necessary, rather than coating the entire uncoated portion. The non-electrode section is deliberately left without oil application, significantly reducing the total oil volume that needs to evaporate and thus shortening the drying time while maintaining effective adhesion prevention in critical areas.
3Reliability
If punching oil is applied to the entire uncoated portion, then adhesion prevention is improved, but scrap discharge pipe clogging increases
Solution Approach 1:
The patent minimizes punching oil application to only the cutting section and boundary regions, deliberately excluding the non-electrode section from oil coating. This localized application strategy dramatically reduces the amount of punching oil that ends up on the scrap material, thereby preventing clogging of the scrap discharge pipe while still ensuring adequate adhesion prevention during the notching process.
4Reliability
If punching oil is applied to regions not reachable by mold, then adhesion prevention is improved, but oil waste increases
Solution Approach 1:
The patent precisely targets punching oil application to only those regions where the mold actually contacts the material during notching (the cutting section and boundary regions). The non-electrode section, which the mold cannot reach, is intentionally left without oil application. This approach ensures adhesion prevention is applied only where mechanically necessary, eliminating waste in inaccessible regions.
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
This approach reduces operating costs by minimizing the amount of punching oil used, shortening drying times, and preventing pipe clogging, while maintaining the quality of the electrode plates.
Implementation Method 1
a pad made of a porous material and connected to the pump to absorb the punching oil
Data Source
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AI summary
A method for manufacturing electrode plate for secondary battery includes feeding an electrode plate including an active material layer and an uncoated portion to a stamp block on which a pad is formed, applying a punching oil absorbed by the pad to a partial region of the uncoated portion, and notching the electrode plate along the partial region where the punching oil is applied.