CompreDrive
Electrochemical laboratory-press designed for Solid State Electrochemistry
New experimental horizons in solid-state-battery and solid electrolyte research
The CompreDrive is an electrochemical laboratory-press designed for solid state electrochemistry research under active force and temperature control.
With the CompreDrive, uniaxial forces up to 75 kN (e.g. 663 MPa @ 12 mm, 1.7 GPa @ 6 mm) can be applied and kept constant on the sample with unprecedented accuracy by the active force regulation system.
Unlike typical active presses the CompreDrive uses an ultra-high resolution servo drive for force regulation instead of a hydraulic system. This allows for high positioning speeds with a minimum step width of <10 nm.
The sample is placed inside a fully sealable, specialized measuring cell (CompreCell), which enables the handling of air-sensitive samples. Temperature control is achieved by different types of mantles, which are supplied based on your requirements. The CompreDrive hardware supports a temperature range of -40 to +250 °C.
The included software CompreDriveControl allows an interconnection of thermocontroller/analyzer software/CompreDrive, which enables individual, automated procedures.
Specifications and content
The CompreCell 12-DP is the ideal solution for the layer-by-layer assembly of solid-state batteries and allows for studying them in a 2- or 3-electrode configuration at different stack pressures and temperatures:
- Cycling of solid-state batteries under active stack pressure and temperature control
- Pressure- and temperature-dependent investigation of a solid-state electrolyte’s conductivity
- Stripping-plating experiments under actively controlled stack pressure
Measuring Solid-State Battery Electrode Expansion in situ with the CompreDrive
In–Li Counter Electrodes in Solid-State Batteries – A Comparative Approach on Kinetics, Microstructure, and Chemomechanics
A recent publication by Alt et al. in Advanced Energy Materials describes an investigation by the Janek research group into the usage of InLi as a counter electrode in solid-state battery (SSB) research. They studied the impact of the preparation method on the potential stability, rate capabilities, and microstructure of the electrode. Furthermore, they used the CompreDrive to quantify the cell height changes as an effect of lithium insertion and extraction during cycling.
Three-Electrode All-Solid-State Battery Cycling
Why include a reference electrode in battery testing?
A reference electrode makes it possible to distinguish between cathode and anode processes that otherwise overlap in a two-electrode measurement. In this application note, the separate potentials of the NMC cathode and the graphite anode could be monitored during cycling, and impedance spectra could be recorded simultaneously for both electrodes, as a function of temperature.
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