Battery Cell Jig Spacer With Slit for Accurate Volume Measurement
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Solution Overview
Problem
Conventional methods for measuring battery cell volume change using Archimedes principle face inaccuracies due to water stagnation between the battery cell jig and spacer, leading to corrosion and biased pressure application.
Innovation Solution
A battery cell jig with a spacer featuring a longitudinal slit to prevent water stagnation, maintaining consistent spacing and using Archimedes principle for accurate volume measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a battery cell is measured using a conventional jig without a spacer, then the measurement process is simple, but the battery cell tilts during measurement leading to inaccurate volume measurements
Solution Approach 1:
A spacer is introduced as an intermediary component between the battery cell and the jig body. The spacer acts as a mediator that provides precise positioning and support for the battery cell, preventing tilting during measurement. The spacer includes positioning protrusions that fit into corresponding recesses and support surfaces that maintain the battery cell at the correct height, thereby ensuring accurate volume measurements without requiring complex adjustment mechanisms.
2Adaptability or versatility
If the jig is designed to accommodate various battery cell types, then versatility is improved, but the device complexity increases
Solution Approach 1:
The jig is designed with universal features that allow it to accommodate various battery cell types. The spacer can be exchanged or adjusted to fit different battery cell dimensions, and the jig body includes standardized measurement chambers and positioning features that work with multiple battery formats. This multi-functionality approach allows a single jig design to handle different battery types without requiring completely separate measurement systems for each cell type.
3Measurement precision
If the spacer is made with high precision positioning features, then measurement accuracy is improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The positioning system is segmented into modular components: the spacer as a separate element with integrated positioning protrusions, and corresponding recesses in the jig body. This segmentation allows the spacer to be manufactured as a standardized component with precise features that can be produced using conventional manufacturing methods. The modular design enables the spacer to be replaced or adjusted without modifying the entire jig, simplifying manufacturing while maintaining positioning accuracy.
Data Source
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AI summary
The technology relates to a battery cell jig including a spacer, a battery cell volume measuring apparatus including the battery cell jig, and a battery cell volume measuring method performed by using the apparatus. According to the present invention, it is possible to preventing stagnation of water at a space between the battery cell jig and the spacer when measuring the volume change of the battery cell using the principle of Archimedes by including a slit opened along a longitudinal direction in the spacer.