Battery Electrode Inspection via Diagonal X-ray Transmission
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Solution Overview
Problem
Conventional battery inspection methods using X-rays along lateral and longitudinal directions face challenges in obtaining accurate images due to excessive X-ray scattering, leading to unreliable results when the X-ray path exceeds a certain length.
Innovation Solution
An apparatus and method that radiates X-ray beams through the corners of the battery, calculating the step difference between anodes and cathodes by positioning the X-ray sources and detectors to capture images at specific angles, thereby shortening the X-ray transmission distance and improving inspection reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If X-rays are transmitted along the lateral and longitudinal directions of the battery, then the arrangement state of electrodes can be inspected, but the image accuracy deteriorates when the X-ray path exceeds a predetermined length due to frequency scattering
Solution Approach 1:
The patent changes the X-ray transmission direction from traditional lateral and longitudinal directions to diagonal directions (corner-to-corner through the battery). This dimensional change in the transmission path allows the X-rays to traverse shorter effective distances through the battery material, reducing scattering effects while still capturing the electrode arrangement information needed for inspection.
2Area of stationary object
If the X-ray transmission distance is increased to cover the entire battery, then complete inspection coverage is achieved, but the scattering of frequencies increases and accurate images cannot be obtained
Solution Approach 1:
By transmitting X-rays along diagonal paths from corner to corner rather than through the entire lateral or longitudinal length, the patent achieves complete inspection coverage while reducing the effective transmission distance through the material. This geometric approach allows the X-rays to pass through shorter paths that minimize scattering while still capturing the full electrode arrangement.
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 enables accurate and reliable inspection of battery electrode arrangements by reducing X-ray scattering, ensuring precise measurement of step differences and improving the overall reliability of the inspection process.
Implementation Method 1
a first X-ray source part for radiating a first X-ray beam onto the battery
Implementation Method 2
if the length for which the X-rays pass through the battery exceeds a predetermined length, accurate images cannot be obtained due to the scattering of frequencies
Implementation Method 3
a first detector for detecting the first X-ray beam having transmitted through the battery
Data Source
AI summary
The present invention relates to an apparatus and method for inspecting the electrodes of a battery, which inspects the arrangement state of anodes and cathodes in the battery in a non-destructive manner (using X-rays). The apparatus radiates X-ray beams onto a battery in which a plurality of plate-shaped anodes and a plurality of plate-shaped cathodes are alternately stacked and inspects an arrangement state of the anodes and the cathodes. The apparatus includes a first X-ray source part for radiating a first X-ray beam onto the battery. A first detector detects the first X-ray beam having transmitted through the battery. A control unit receives an image of the battery output from the first detector, calculates a step difference between each anode and each cathode, and then inspects an arrangement state of the anode and the cathode.