Vision-Guided Electrode Cutting for Battery Cell Alignment
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Solution Overview
Problem
Existing electrode cutting devices struggle with precision and alignment during the cutting and matching processes of electrodes in secondary battery manufacturing, leading to inefficiencies and defects.
Innovation Solution
An electrode cutting device that includes a transfer unit, a vision unit to measure misaligned angles, a cutting unit with an adjustable cutter, and a control unit to adjust the cutting angle based on the measured misalignment, ensuring precise cutting and improved alignment of electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed cutting angle is used, then the device structure is simple, but the cutting precision deteriorates due to electrode misalignment
Solution Approach 1:
The cutting device transitions from a fixed cutting angle to a dynamic adjustable cutting angle. The cutter can be rotated around the transfer direction of the electrode by a predetermined angle to match the misalignment angle, enabling the cutting angle to adapt dynamically to different electrode positions and improve cutting precision.
Solution Approach 2:
The cutting angle parameter is made variable instead of fixed. By changing the cutting angle parameter according to the measured misalignment angle, the system optimizes cutting precision for each electrode while maintaining a relatively simple overall device structure through parameter adjustment rather than structural redesign.
2Productivity
If manual adjustment of cutting angle is used, then device complexity is low, but productivity decreases due to manual intervention
Solution Approach 1:
The system implements automatic feedback control where the misalignment angle is measured and the cutting angle is adjusted automatically based on this measurement. This feedback loop eliminates manual intervention, improves productivity, and the automation is achieved through integrated sensors and control systems rather than complex mechanical adjustments.
Solution Approach 2:
The cutting device performs self-adjustment of the cutting angle without external manual intervention. The system automatically measures the electrode position, calculates the required angle adjustment, and positions the cutter accordingly, enabling the device to serve itself and improve productivity while keeping the automation architecture relatively simple.
3Manufacturing precision
If fixed cutting position is used, then device structure is simple, but alignment precision deteriorates due to electrode misalignment
Solution Approach 1:
The cutting position transitions from fixed to dynamically adjustable. The cutter can change its cutting angle and position automatically based on the measured electrode misalignment, improving alignment precision while the adjustment mechanism remains integrated and relatively simple rather than requiring complex external positioning systems.
Data Source
AI summary
The present disclosure relates to an electrode cutting device, including: a transfer unit that transfers an electrode; a vision unit that measures a misaligned angle of the electrode; a cutting unit including a cutter that cuts the electrode; and a control unit that controls the cutter, wherein the control unit adjusts a cutting angle of the cutter based on the misaligned angle of the electrode measured by the vision unit, and the cutting angle of the cutter is an angle formed by a blade of the cutter and an imaginary line perpendicular to a transfer direction of the electrode on a plane, and a cell manufacturing device including the same.