Typical applications
Thickness changes of pouch cells can be monitored. Either pressure, temperature or SOC induced.
Monitoring of “breathing” of pouch cells during cycling
Thickness creeping versus time, pressure, temperature
Selected views and impressions
Detailed Description
The Distance Add-on is used to allow the most precise monitoring of thickness changes of pouch cells.
It is attached directly to the ground solid metal plates of the CompreCell Pouch cell holders. The cell holders offer metric M5 female threads at the plates, where the sensor mount and mirror mount are attached. By doing so, only minimal influences of the mainframe are included in the signal and only the displacement of the pouch itself is measured.
To reach highest precision, an optical confocal sensor is used. It offers a resolution of 40 nm and a full-range linearity of 1 µm. Hence, also single-layer solid-state cells can be monitored during cycling. In contrast to mechanical displacement sensors, the optical ones are usually much less prone to malfunctions.
The system includes the optical sensor and the controller with ethernet connection. It is fully integrated into the CompreDrive hard- and software. We provide a special software that allows the optimal alignment of the sensor and the transfer of raw and tare data (initial thickness of the bag cell can be specified).
The total measuring range of 2 mm of the sensor also allows the investigation of commercial multilayer Li-Ion pouches.
Technical Details
- Short description:
Optical confocal sample displacement measuring system compatible with CompreCell Pouch, fully implemented into CompreDriveControl software.
- Connections and interfaces:
Confocal controller with ethernet data connection, pre-configured to be used with CompreDriveControl.
- Power supply:
Power supply from CompreDrive main unit (if used stand-alone or with CompreFrame, a 24 V DC power supply will be provided).
- Sensor specifications:
Confocal sensor (14 mm minimum distance, 2 mm
measuring range, 40 nm resolution, 1 μm linearity full
range).
- Scope of delivery:
All necessary tools and accessories, incl. adjustable sensor mount for measuring cell as well as mirror mount and software plugin for CompreDriveControl.
Key Data
- Art. No.:
84011001
- Essential features at a glance:
- Resolution 40 nm, full range linearity 1 µm, full range 2 mm
- Raw and tare displacement values of pouch cells
- Fast and comfortable assembly and handling
- Fully integrated into CompreDriveControl software
