Electrode Drying Layout for Uniform High-Speed Coating Drying
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Solution Overview
Problem
Existing electrode drying processes struggle to maintain drying quality when increasing drying speed, leading to potential deformation and inefficiencies in the production of electrodes for lithium secondary batteries.
Innovation Solution
An electrode drying device comprising a housing, an electrode transport unit, an air supply device, a light source, and a reflector system that includes a masking plate and exhaust ducts to control airflow and light distribution, ensuring uniform drying of coated and uncoated portions of the electrode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If drying speed is increased, then productivity is improved, but drying quality deteriorates and electrode deformation occurs
Solution Approach 1:
The drying system is segmented into multiple light source units arranged in the first direction, with each unit independently controlling light irradiation to different sections of the electrode. This segmentation allows differentiated drying control across the electrode surface, maintaining quality while increasing overall productivity.
Solution Approach 2:
The masking plate creates local quality differences by selectively blocking light to different portions of the electrode. The light transmitting portion allows drying of coated portions while the light blocking portion prevents drying of uncoated portions, ensuring each area receives appropriate drying treatment even at high speeds.
2Productivity
If light is applied directly to the electrode, then drying efficiency is improved, but uncoated portions deform due to excessive heat
Solution Approach 1:
The masking plate applies local quality control by creating distinct light transmitting and light blocking portions. This allows the coated portions to receive intensive light for efficient drying while uncoated portions are protected from excessive heat, preventing deformation.
Solution Approach 2:
The masking plate acts as an intermediary between the light source and the electrode, selectively mediating light transmission. It allows beneficial light to reach coated portions while blocking harmful light from reaching uncoated portions, resolving the contradiction between drying efficiency and deformation prevention.
3Productivity
If air supply is increased, then drying speed is improved, but uniformity of drying across electrode surfaces deteriorates
Solution Approach 1:
Multiple light source units are segmented and distributed in the first direction, with each unit providing localized drying control. This segmentation ensures uniform drying across the entire electrode surface while maintaining high overall drying speed through parallel processing of different sections.
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 device maintains drying quality and prevents deformation of uncoated electrode portions while enhancing productivity by efficiently drying electrodes at increased speeds.
Implementation Method 1
a light source unit (400) that emits light
Implementation Method 2
emit light toward the electrode... transmit light energy to the electrode
Implementation Method 3
a reflector configured to reflect light emitted from the light toward the electrode
Implementation Method 4
an air supply device provided with the housing unit to supply air into the housing
Implementation Method 5
an exhaust duct inside the housing to exhaust internal air from the housing
Data Source
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AI summary
The present disclosure relates to an electrode drying device including a housing, an electrode transport device configured to transport an electrode through the housing unit in a first direction. An air supply is provided with the housing unit to supply air into the housing unit. A light is disposed between the electrode and the air supply device.