Vacuum Electrode Plate Feeding for Flat Winding Alignment
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Solution Overview
Problem
In battery manufacturing, the production efficiency of cells is hindered by issues with the flatness and alignment of electrode plates during the winding process, leading to potential short circuits due to misalignment of positive and negative electrode plate edges.
Innovation Solution
A cell electrode plate feeding device is introduced, featuring a conveying device with a vacuum suction system that attaches the electrode plate to a conveying surface, ensuring it reaches the feeding position with improved flatness and alignment, and a blowing device to maintain the feeding angle, preventing edge overlap and enhancing feeding accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the electrode plate is conveyed without vacuum suction, then the conveying process is simple, but the electrode plate head swings freely causing poor flatness and alignment
Solution Approach 1:
The patent employs a vacuum suction device that creates negative pressure to吸附 the electrode plate surface, preventing head swing and improving flatness and alignment during conveying. The vacuum system is integrated with the conveying body through communicating portions, allowing effective suction without complex additional mechanisms.
2Reliability
If the vacuum suction device sucks the entire electrode plate, then the electrode plate is firmly fixed, but the edge of the electrode plate curls
Solution Approach 1:
The vacuum suction device is designed to suction only a specific region of the electrode plate rather than the entire surface. This localized suction approach firmly fixes the electrode plate while avoiding excessive force on the edges that would cause curling, thus maintaining both fixing stability and edge flatness.
3Reliability
If the electrode plate is conveyed without alignment control, then the conveying process is fast, but edges of positive and negative electrode plates overlap causing short circuits
Solution Approach 1:
The vacuum suction device provides real-time alignment control by maintaining consistent contact between the suction region and the electrode plate. This feedback mechanism ensures that the electrode plate remains properly positioned during conveying, preventing edge overlap between positive and negative plates while maintaining efficient conveying speed.
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 solution significantly increases cell yield, reduces rejection rates, and improves overall production efficiency by ensuring precise alignment and flatness of electrode plates during the manufacturing process.
Implementation Method 1
The vacuum suction device is in communication with the accommodating cavity, and the vacuum suction device is configured to suck air between a conveying surface of the conveying body and the electrode plate, so as to enable the electrode plate to be attached to the conveying surface of the conveying body.
Data Source
AI summary
A cell electrode plate feeding device includes a conveying device and a vacuum suction device. The conveying device is configured to convey an electrode plate to be wound and comprises a support base and a conveying body, the support base comprising an accommodating cavity, the conveying body being mounted on the support base, and the conveying body being provided with a communicating portion, by means of which a space of the conveying body on a side away from the accommodating cavity is in communication with the accommodating cavity. The vacuum suction device is in communication with the accommodating cavity, and the vacuum suction device is configured to suck air between a conveying surface of the conveying body and the electrode plate, so as to enable the electrode plate to be attached to the conveying surface of the conveying body.