Integrated Electrode Lead Welding Jig for Close-Contact Positioning
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Solution Overview
Problem
Conventional electrode lead tack welding processes for battery cells require separate jigs for guiding and close contact, increasing manufacturing costs and time due to the need for multiple tools.
Innovation Solution
An integrated electrode lead tack welding jig that simultaneously performs positioning, close contact, and tack welding of electrode leads without bending, using a single device that includes a jig body and a close contact guide unit with guide members and knob bolts for laser welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate electrode lead guide jig and electrode lead close contact jig are used, then positioning and close contact functions are achieved, but manufacturing cost increases and manufacture time increases
Solution Approach 1:
The patent combines the electrode lead guide jig and electrode lead close contact jig into a single integrated jig. The guide members extend from the jig body to simultaneously perform positioning and close contact functions, eliminating the need for separate jigs and reducing manufacturing cost while maintaining functional effectiveness
Solution Approach 2:
The integrated jig performs multiple functions through its guide members: positioning electrode leads at predetermined points, bringing electrode leads into close contact, and guiding the welding process. This multi-functionality reduces the number of required tools and simplifies the manufacturing process
2Productivity
If separate electrode lead guide jig and electrode lead close contact jig are used, then positioning and close contact functions are achieved, but overall manufacture time increases
Solution Approach 1:
By merging positioning and close contact functions into a single jig operation, the patent eliminates the sequential time required to use separate jigs. The integrated design allows both functions to be performed in one setup, reducing overall manufacture time and improving process efficiency
Solution Approach 2:
The guide members are pre-configured on the jig body to perform positioning and close contact simultaneously during a single operation, eliminating the need for preliminary positioning followed by separate close contact operations, thereby reducing total process time
3Manufacturing precision
If multiple separate jigs are used, then specific functions are performed accurately, but device complexity and cost increase
Solution Approach 1:
The guide members of the integrated jig are designed to perform multiple functions with equal precision: positioning electrode leads at exact predetermined points, bringing them into close contact, and guiding welding. This maintains manufacturing precision while reducing device complexity through functional integration
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
Reduces manufacturing costs and time by eliminating the need for separate jigs, enhancing process efficiency through simultaneous multi-functionality in a single tool.
Implementation Method 1
the electrode leads in close contact are tack-welded using an ultrasonic welding machine or a laser welding machine
Implementation Method 2
the electrode leads in close contact are tack-welded using an ultrasonic welding machine or a laser welding machine
Data Source
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AI summary
Disclosed is an electrode lead tack welding jig for a battery cell, which includes a jig body configured to support at least two battery cells, and a close contact guide unit provided to both ends of the jig body to guide electrode leads of the at least two battery cells to come into close contact when tack welding is performed to the electrode leads by laser.