Battery Cell Test Fixture with Multi-Parameter Sensor Connectors
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Solution Overview
Problem
Current test fixtures for battery cell chemistry testing are limited in their ability to monitor and sample parameters such as cell temperature, cell pressure, and gas production, which are crucial for evaluating energy storage, charging speed, and discharging depth.
Innovation Solution
A test fixture with a housing containing a battery cell chamber, equipped with electric terminals for connection to the battery cell, and a plurality of sensor connectors for gas sampling, pressure sensing, and valve control, allowing for the monitoring and sampling of additional parameters beyond voltage response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a simple test fixture is used for battery cell testing, then the device complexity is low, but the measurement capability is limited to only voltage response
Solution Approach 1:
The test fixture is designed with multiple sensor connectors that enable various measurement functions including voltage monitoring, gas sampling, pressure sensing, and temperature measurement. This multi-functional approach allows a single device to perform comprehensive battery cell chemistry testing across multiple parameters simultaneously, resolving the contradiction between measurement capability and device complexity.
2Adaptability or versatility
If multiple sensor connectors are added to the test fixture, then the adaptability for monitoring multiple parameters is improved, but the device complexity increases
Solution Approach 1:
The test fixture incorporates distinct, modular sensor connectors for different measurement functions (voltage terminals, gas sampling connector, pressure sensor connector, temperature sensor connector). Each connector is independently designed and positioned on the housing, allowing for targeted attachment of specific sensors based on testing requirements. This segmentation enables high adaptability while maintaining manageable device complexity through modular architecture.
3Loss of information
If gas sampling and pressure sensing capabilities are added, then the information about battery chemistry is improved, but the loss of time for setup and configuration increases
Solution Approach 1:
The test fixture is pre-configured with all necessary sensor connectors (gas sampling, pressure sensing, temperature monitoring) and fluid passages integrated into the housing structure before testing begins. This preliminary preparation of the testing infrastructure eliminates the need for time-consuming assembly or reconfiguration during actual battery cell chemistry tests, allowing researchers to quickly attach sensors and begin data collection across multiple parameters simultaneously.
Data Source
AI summary
A battery cell chemistry test fixture includes a housing including a battery cell chamber. A first electric terminal is electrically connectable to a battery cell in the battery cell chamber. A second electric terminal is electrically connectable to the battery cell in the battery cell chamber. A plurality of sensor connectors is mounted to the housing. The plurality of sensor connectors include at least a gas sampling connector, a pressure sensor connector, and a valve connector, each of the gas sampling connector, the pressure sensor connector, and the valve connector being fluidically connected with the battery cell chamber.