Vacuum Electrode Fixture for Flat Battery Material Characterization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies face challenges in accurately and reliably measuring physical characteristics of battery electrodes, such as dimensions, surface roughness, and material density, due to difficulties in maintaining the electrodes in a flat and unwrinkled state during characterization.
Innovation Solution
A fixture assembly is developed, comprising a top plate with holes to create a low-pressure region, a baseplate with a vacuum chamber, and a support member to hold the assembly in place. This assembly is integrated with a characterization system that includes a vacuum pump and a network device to control the measurement process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional measurement methods are used without special fixtures, then the measurement process is simple, but the electrodes become wrinkled and measurement accuracy deteriorates
Solution Approach 1:
The fixture assembly is divided into distinct functional components: a baseplate with vacuum chamber, a top plate with measurement markings, and a clamping mechanism. This segmentation allows each component to perform its specific function while maintaining overall system manageability and measurement precision.
Solution Approach 2:
The fixture assembly acts as an intermediary device between the electrode and the measurement instrument. It provides a stable, flat platform that mediates the interaction between the flexible electrode and the rigid measurement equipment, ensuring accurate measurements without direct contact between the electrode and instrument.
2Reliability
If electrodes are handled freely during measurement, then operation is easy, but electrode flatness and reliability of measurement deteriorate
Solution Approach 1:
The fixture assembly provides self-service functionality through the vacuum chamber that automatically holds the electrode in place without requiring constant manual adjustment. The electrode itself is held by the vacuum force, eliminating the need for external clamping or continuous handling intervention while maintaining measurement reliability.
3Measurement precision
If electrodes are constrained tightly to ensure flatness, then measurement accuracy improves, but electrode damage risk increases
Solution Approach 1:
The fixture assembly uses vacuum pressure (pneumatics) to hold the electrode flat against the measurement surface. The vacuum chamber creates a pressure differential that gently constrains the electrode without mechanical contact or excessive force, ensuring flatness for accurate measurement while minimizing the risk of damaging the delicate electrode structure.
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 fixture assembly ensures accurate and reliable measurement of physical characteristics by maintaining the battery electrodes in a flat and unwrinkled state, reducing experimental and human errors, and enabling nondestructive testing for quality verification and material characterization.
Implementation Method 1
The baseplate includes a bottom plate and side walls. The side walls extend upward from the bottom plate and define a vacuum chamber with the top plate.
Implementation Method 2
The connector is attached to the baseplate and configured to be connected to a vacuum hose for drawing air from the vacuum chamber to pull the at least a portion of the battery electrode to the top plate.
Data Source
AI summary
A fixture assembly for testing or measuring a portion of a battery electrode includes a top plate, a baseplate, a connector and a support member. The top plate includes holes for creating a low-pressure region along a top surface of the top plate to hold the portion of the battery electrode to the top plate. The baseplate includes a bottom plate and side walls. The side walls extend upward from the bottom plate and define a vacuum chamber with the top plate. The connector is attached to the baseplate and configured to be connected to a vacuum hose for drawing air from the vacuum chamber to pull the portion of the battery electrode to the top plate. The support member is attached to the baseplate and configured to hold the fixture assembly in place relative to a measuring device that measures a physical characteristic of the battery electrode.