Electrode Assembly Gripper Layout to Protect Uncoated Edges
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Solution Overview
Problem
During the transfer of secondary battery electrode assemblies, the uncoated portions exposed to the outside are prone to damage or contamination, affecting the quality and integrity of the assembly.
Innovation Solution
A transfer apparatus with a gripper system that grips the electrode assembly perpendicularly to its long axis, using elastic members to maintain a constant center point and avoid contact with uncoated areas, allowing stable transfer without damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the transfer apparatus contacts the uncoated portion of the electrode assembly, then the transfer process can be simplified, but the uncoated portion may be damaged or contaminated, deteriorating the quality of the electrode assembly
Solution Approach 1:
The patent introduces a transfer member as an intermediary component that contacts only the coated outer surface of the electrode assembly, not the uncoated portion. This transfer member acts as a mediator between the transfer apparatus and the electrode assembly, enabling the transfer process while protecting the uncoated portion from damage or contamination. The transfer member is specifically designed to engage with the coated surface only, thus resolving the contradiction between simplified transfer and quality maintenance.
2Stability of the object's composition
If the gripper grips the electrode assembly at multiple points, then the transfer stability is improved, but the risk of contacting and damaging the uncoated portion increases
Solution Approach 1:
The patent applies local quality by designing the transfer member with differentiated contact characteristics - it is configured to contact only specific regions (the coated outer surface) while avoiding other regions (the uncoated portion). The transfer member's contact surface is specifically tailored to match the geometry and properties of the coated surface, enabling stable multi-point gripping without risking damage to the uncoated portion. This localized contact strategy resolves the contradiction between transfer stability and damage prevention.
3Device complexity
If the transfer apparatus uses a simple gripping mechanism, then the device complexity is reduced, but the precision of avoiding the uncoated portion deteriorates
Solution Approach 1:
The patent implements preliminary action by pre-configuring the transfer member's geometry and contact surface to match the electrode assembly's coated outer surface before the transfer process begins. The transfer member is designed in advance with specific dimensional parameters and surface characteristics that ensure it will contact only the coated portion and avoid the uncoated portion during transfer. This preliminary design and configuration eliminate the need for complex real-time adjustment mechanisms, thus reducing device complexity while maintaining high contact position precision.
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
The apparatus ensures the electrode assembly is transferred without damaging the uncoated portions, maintaining assembly quality and reducing space requirements.
Implementation Method 1
an elastic member positioned between the first gripper and the base and configured to enable the first gripper to apply a force to the first portion
Data Source
AI summary
An apparatus for transferring an electrode assembly includes a base, a support extending from the base, a gripper connected to the support, a driver configured to drive the gripper so that the gripper grips the electrode assembly, a transferer connected to the base and configured to move along a rail, and a controller configured to control the driver so that the gripper grips a side surface of the electrode assembly in a direction perpendicular to a long axis of the electrode assembly and to control the transferer so that the electrode assembly moves along the rail.


