Description
Thickness Sensor Module for Battery Swelling Measurements
The Thickness Sensor Module is a precision measurement attachment designed to complement our Pouch Cell Holder, offering unprecedented accuracy in tracking battery cell volume changes during electrochemical testing. The module delivers ultra-precise displacement measurements with a resolution of 0.1 μm and an accuracy of 1 μm across a 5 mm measurement range. This level of precision allows getting insights into single-layer prototypes, and up to multilayer commercial cells.
Smart assembly of the module enables detaching the sensor during measurement and re-attaching it later, without losing thickness measurement accuracy (error < 2 μm). This function enables using one Thickness Sensor Module for several holders and is particularly useful in long-term cycling, such as ageing tests.
Battery dilatation monitoring is crucial for understanding complex phenomena such as electrode expansion, gas generation, gel- or solid-electrolyte deformation, Lithium (or Sodium) metal plating and mechanical deformation during battery charge and discharge processes. It can also be applied in the investigation of cell swelling in prolonged ageing tests.
Its USB-PC connection provides streamlined data acquisition, allowing researchers to log and analyse thickness data in real-time. The provided software allows logging data from thickness probe and from Force Sensor Module into one file with standardised format, making it extra easy to integrate with electrochemical data for analysis and presentation.
Specification
- Measurement range: 5 mm
- Resolution: 0.1 μm
- Accuracy: 1 μm
- Operating temperature: 0 to +50 °C (no condensation)
- Storage temperature: -20 to +60 °C (90 %RH or less)
- Output: USB-PC connection