Solutions and Products for solid-state & pouch-cell research > CompreDrive

CompreDrive

Automated test station for studying solid-state electrolytes and solid-state batteries under active pressure and temperature control

Benefit from this unprecedented setup to operate test cells in solid-state-battery and solid-electrolyte research.

High-precision pressure and temperature control
Broad accessible range of stack-pressure and temperature
Innovative test cell design with coin-cell sized samples up to small pouch cell formats
On-demand: dilatation measurement, e.g. during cycling of pouch cells
Powerful, trend-setting control software ensuring fully automated test procedure

Typical applications

The CompreDrive can be used to operate the test cells CompreCell 6/12, CompreCell 6/12-DP, and CompreCell Pouch. Therefore, a broad range of different applications is accessible:

Cycling of solid-state batteries under active stack pressure and temperature control
Cycling of pouch cell formats with lithium-ion battery or solid-state battery chemistry 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
Dilatation monitoring during cycling of pouch cells

Selected views and impressions

Detailed Description

For years, solid-state electrochemistry has been plagued with inconsistent pressure control. Today, this is finally over! Introducing: The CompreDrive – the first actively pressure and temperature controlled electrochemical measuring system.

To overcome the common drawbacks of standard test equipment, our team has developed the CompreDrive to test the performance of solid and polymeric electrolytes as well as (all-)solid-state batteries while precisely monitoring and actively adjusting both the mechanical pressure and temperature applied to the sample stack!

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 (663 MPa @ 12 mm, 1.7 GPa @ 6 mm piston diameter) 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 or CompreCell DP), which enables the handling of air-sensitive samples. Also, small pouch cells can be handled by using our CompreCell Pouch fixture.
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 powerful software CompreDriveControl allows an interconnection of thermocontroller/analyzer software/CompreDrive, which enables individual, automated procedures.

Technical Details

Mains voltage:

U_{ac, rms} = 100 … 230 V 50 … 60 Hz

Mains max. current

10 A

Maximum applicable force onto measuring cells:

F_max = 75 kN*

Maximum pressure depends on sample area:

p_max = 663 MPa with 12 mm pistons and 1.7 GPa with 6 mm pistons in CompreCell 12/6 or CompreCell 12DP/6DP*

p_max = f(pouch cell area) in CompreCell Pouch

Minimum measurable force:

0.03 kN or 0.15% of force sensor full scale range (whichever is higher)

Sensor accuracy:

0.1% of full scale in all cases

Available force sensors:

100 kN, 10 kN, 2 kN maximum force (0.1% linearity)

Accessible temperature range during operation (measuring cell):

CompreCell 6/12 or CompreCell 6DP/12DP:

T_{operation/cell} = -40 °C to +250 °C** with HC option and RT to +250 °C with H option

CompreCell Pouch:

T_{operation/cell} = 0 °C to +100 °C with HC option

Temperature range during operation (ambient):

T_{operation/ambient} = +10 °C to +40 °C

Temperature range for storage:

T_storage = +10 °C to +30 °C

Relative humidity range during operation and storage:

0 to 80% (non-condensing)

Atmosphere during storage:

non-corrosive

Rated dimension:

0.6 m x 0.81 m x 1.7 m (L x W x H)

Required space (only CompreDrive excl. of thermostat):

1.1 m x 1 m x 1.7 m (L x W x H)

Total weight:

approx. 180 kg

Control software:

CompreDriveControl

*The max. force might be limited by the selected force sensor and the chosen test cell.

**The accessible range is limited by the coupled thermostat and insulation sleeve type (PEEK: T_max = +150 °C, PEI: T_max = +200 °C, AlO_x: T_max = +250 °C)

Key Data

Art. No.:

840104 (no temperature control option),
840105 (heating option),
840106 (heating and cooling option; external circulating thermostat is required)

Essential features at a glance:

High-quality setup for solid-state research
Compatibility with all test cells with prefix CompreCell
Airtight measuring cells allow for the handling of sensitive samples outside of a glovebox
Large range of applicable force up to 75 kN
Large range of sample temperature from -40 °C up to 250 °C
Universal compatibility with all potentiostats/galvanostats
Various capabilities for inter-device communication in hard- and software for automated electrochemical routines with most potentiostat/galvanostat manufacturers
Various safety features in hard- and software providing maximum safety for both the user and the setup