Electrode Plate Mass Detection with Adjustable Radiation Surfaces
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Solution Overview
Problem
The inaccuracy in determining the mass of electrode plates due to non-uniform surface density during the production of battery electrode plates, which affects the accuracy of net weight testing and coating mass, is a significant challenge.
Innovation Solution
A method and apparatus that adjust the shapes of radiation surfaces on the electrode plate using a collimator with a shield plate and driving mechanism to create different radiation surfaces, allowing for accurate surface density information and mass determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed radiation surface shape is used in the surface density gauge, then the device structure is simple, but the measurement precision deteriorates due to non-uniform surface density of the electrode plate
Solution Approach 1:
The patent applies the dynamics principle by making the radiation surface shape adjustable rather than fixed. The collimator includes a shield plate that can be moved to different positions to change the radiation surface shape dynamically, allowing the measurement system to adapt to different electrode plate regions with varying surface density characteristics.
Solution Approach 2:
The patent implements parameter changes by varying the shape parameters of the radiation surface through the adjustable shield plate. By changing the radiation surface shape parameter according to different measurement positions on the electrode plate, the system optimizes measurement precision for each region while managing device complexity.
2Measurement precision
If the radiation surface shape is adjusted to match different electrode plate regions, then the measurement precision improves, but the device complexity increases due to additional adjustment mechanisms
Solution Approach 1:
The patent applies segmentation by dividing the electrode plate into different measurement regions (such as wound portions and non-wound portions) and using different radiation surface shapes for each region. The shield plate is segmented into multiple positions that correspond to different electrode plate regions, allowing optimized measurement for each segment.
Solution Approach 2:
The patent uses the shield plate as an intermediary element between the radiation source and the electrode plate. The shield plate mediates the radiation by selectively blocking portions of the radiation beam to create different radiation surface shapes, simplifying the overall device structure compared to having multiple radiation sources.
3Measurement precision
If multiple radiation surface shapes are used for different electrode plate positions, then the coating mass measurement accuracy improves, but the detection time increases due to multiple measurement configurations
Solution Approach 1:
The patent implements periodic action by sequentially switching between different radiation surface shapes corresponding to different electrode plate regions. The shield plate moves periodically between predetermined positions to match the periodic structure of the electrode plate (wound and non-wound portions), enabling accurate measurement of each region in sequence.
Solution Approach 2:
The patent applies preliminary action by pre-positioning the shield plate at predetermined locations that correspond to different electrode plate regions. The shield plate is prepared in advance at specific positions, and the radiation surface shape is adjusted before each measurement, reducing the time required during actual measurement.
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 approach enhances the accuracy of mass determination by ensuring the radiation surfaces are tailored to the electrode plate's specific regions, improving the precision of mass calculations.
Implementation Method 1
When rays emitted by the radioactive source penetrate an object under test, the rays are reflected, scattered, and absorbed by the object under test, resulting in a certain attenuation of intensity of the transmitted rays detected by the detector
Data Source
AI summary
This application provides an electrode plate mass detection method, coating method, apparatus, device, system, and medium, pertaining to the field of battery technologies. The method includes: controlling a surface density gauge to create radiation surfaces of different shapes on an electrode plate; obtaining surface density information corresponding to the radiation surfaces; and determining mass information of the electrode plate based on the surface density information.