Electrode Jig Foreign-Matter Adhesion Prevention
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Solution Overview
Problem
Conventional jigs used in electrode production processes are prone to adherence of foreign substances during laser cutting, leading to electrode defects.
Innovation Solution
An electrode production device equipped with a jig member featuring foreign-matter adhesion prevention portions and a suction member to prevent foreign substances from adhering to the jig during the cutting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional jig is used to support the electrode foil during laser cutting, then the electrode foil can be properly supported and cut, but foreign substances such as laser fumes adhere to the jig, causing electrode defects
Solution Approach 1:
The harmful function of the jig (adhering foreign substances) is separated from the useful function (supporting electrode foil). The jig is designed with a non-stick coating that extracts the adhesion property, allowing foreign substances to be removed easily while maintaining the support function.
Solution Approach 2:
The harmful adhesion of foreign substances to the jig is converted into a beneficial situation where foreign substances can be easily removed. The non-stick coating transforms the jig from a surface that permanently captures contaminants to one that facilitates their removal, turning a harmful effect into a useful one.
2Object-affected harmful factors
If the jig surface is made smooth to prevent foreign substance adhesion, then foreign substances can be removed easily, but the jig may not properly support the electrode foil
Solution Approach 1:
The jig surface is given different local properties: the contact area with the electrode foil maintains high precision and smoothness for proper support, while other areas have non-stick coating properties for easy foreign substance removal. This local differentiation resolves the contradiction between support accuracy and contaminant removal.
Solution Approach 2:
The jig combines multiple material properties: a base material providing structural support and precision, plus a non-stick coating layer providing easy cleaning. This composite structure allows the jig to simultaneously achieve precise electrode foil support and prevent foreign substance adhesion.
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
Prevents foreign substances from adhering to the jig, thereby avoiding electrode defects and improving electrode quality.
Implementation Method 1
a laser member configured to irradiate the electrode foil with a laser
Implementation Method 2
a suction member configured to remove the foreign substance from the jig member
Data Source
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AI summary
Disclosed are an electrode production device, a battery cell including an electrode produced using the same, and a battery pack and a vehicle including the battery cell. An electrode production device according to an embodiment of the present disclosure includes: a transport member configured to transport an electrode foil coated with an electrode active material; a laser member configured to irradiate the electrode foil with a laser; and a jig member disposed in contact with the electrode foil and configured to support the electrode foil, and a foreign-matter adhesion prevention portion is formed on the jig member.