Electrode Drying Screen Layout for Uniform Widthwise Hot Air Flow
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Solution Overview
Problem
Conventional electrode substrate drying methods result in temperature differences between the center and side parts, leading to decreased adhesive force and surface cracks due to excessive drying of the side parts.
Innovation Solution
A drying equipment with a screen that divides hot air flow distribution, ensuring a higher opening ratio in the center part compared to the side parts, controlled through hole diameters and wind speeds to uniformly dry the electrode substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional drying method is used, then drying process is simple, but temperature difference between center and side parts causes adhesive force decrease and surface cracks
Solution Approach 1:
The screen is designed with different opening ratios for different regions: the center part has a first opening ratio while the side parts have a second opening ratio that is smaller than the first. This local differentiation of structural properties allows customized hot air flow distribution to different regions of the electrode substrate, achieving uniform drying without excessive complexity
Solution Approach 2:
The screen is divided into multiple regions (center part and side parts) with distinct opening ratios. This segmentation enables independent control of hot air flow to different areas, resolving the contradiction by creating a zone-based drying system that maintains simplicity while achieving precision
2Productivity
If hot air flow is increased to improve drying efficiency, then drying speed increases, but side parts dry excessively causing cracks
Solution Approach 1:
Different regions of the screen have different opening ratios to locally control hot air flow intensity. The center part allows higher flow while side parts restrict flow, enabling high productivity overall while maintaining reliability in critical surface areas
Solution Approach 2:
The screen acts as an intermediary device between the hot air source and the electrode substrate. It mediates the hot air flow by distributing it non-uniformly across different regions, achieving both high drying speed and surface integrity through controlled flow distribution
3Manufacturing precision
If uniform opening ratio is used across the screen, then equipment structure is simple, but temperature distribution becomes non-uniform
Solution Approach 1:
The screen employs local quality variation with different opening ratios in different regions. This creates a non-uniform structure that actually achieves uniform temperature distribution on the electrode substrate, resolving the contradiction between structural simplicity and temperature uniformity
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
Achieves uniform drying of the electrode substrate, maintaining adhesive force and preventing surface cracks by concentrating hot air flow in the center part while controlling wind speed and hole diameters.
Implementation Method 1
a screen which is positioned on a hot air discharge line of the hot air discharge unit and controls hot air discharged from the nozzle
Implementation Method 2
a hot air discharge unit which discharges hot air through a nozzle positioned on an upper portion of the drying furnace
Data Source
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AI summary
The present technology relate to an equipment and method for drying an electrode substrate including a screen for distributing the flow of hot air, and according to the present technology, it is possible to uniformly dry the electrode substrate in the width direction.