The ideal test cell for high-throughput battery testing.

Our electrochemical standard test cell for two and three-electrode testing.

The PAT-Cell is the test cell for high-throughput testing of battery materials. The PAT-Cell has no sockets for direct cable connections. It must therefore be used with a docking station such as the PAT-Stand-1 or PAT-Stand-16. This enables parallel battery tests to generate more reliable test results with less effort and in a shorter period of time.

The PAT-Cell and the PAT-Stand-16 are a solution for medium and large battery test laboratories with more than 10 test cells running in parallel. Moreover, the PAT-Cell increases the testing productivity through easy handling and it saves space in the lab.

PAT-Cell overview


Long term tests

The PAT-Core enables battery tests with a three-electrode setup of a duration of 1000 hours and more. The reason for this advantage is the new ring-shaped Li-reference electrode, which is far more time stable than point-type reference electrodes.

This makes the PAT-Core the perfect test system for aging studies.


Less cross contamination

The single-use concept of the PAT series helps to reduce cross-contamination between subsequent tests and corrosion issues. The PAT-Core consists of three single-use parts: insulation sleeve (PP), upper plunger (Cu as standard) and lower plunger (Al as standard). All these parts are assembled, packed and sealed under controlled atmosphere at the EL-CELL® factory. Moreover, it is not required to clean and dry the single-use parts, which avoids the risk of contamination with water and reduces effort in the lab.

Please note that upper and lower plungers are also available as reusable versions in stainless steel.


Half-cell impedance spectra

The results of half-cell impedance spectroscopy reach a new level with the new PAT-Cell. The ring-shaped Li-reference electrode allows half-cell impedance tests with minimal artifacts, due to the well-defined geometry of the insulation sleeve.


Easy electrolyte filling

The PAT-Cell can be filled easily with electrolyte during the assembly procedure. The user needs only an usual micro pipette for this purpose to drip a defined amount of electrolyte onto the separator, which is factory preinstalled in the insulation sleeve of the PAT-Core.

The amount of the electrolyte used is typically between 50 and 200 μL, depending on the thickness and porosity of the electrodes and separator used.


Tight test cells

The PAT-Cell is completely airtight. This is ensured by the special PE-Seal clamped between the double cutting rings of the cell lid and cell body. This sealing concept guarantees ultra-low leakage and enables the operation of the PAT-Cell outside of the glovebox.


Increased productivity

The new PAT series improves the productivity of battery testing. The single-use concept avoids effort for cleaning and disassembling the PAT-Cores. When used with a PAT-Stand-16, it saves time for connecting the test cells with the potentiostat for every new battery test. Moreover, the PAT-Stand-16 saves space in the lab through the compact design for up to 16 PAT-Cells. All these features increase the battery testing productivity and facilitate high-throughput testing.


Diameter 49.5 mm
Height 61 mm
Weight 0.4 kg
Electrode diameter 18 mm
Temperature resistance -20 to 70° C

Compatible PAT docking stations

Application note
Application Note: PAT-Cell in PAT-Stand-1 with BioLogic VSP Potentiostat
Release 2.11
Type PDF
Size 0.7 MB

Please note that not all combinations may be well suited for your testing setup. As a guide you can use our sample setups that cover the most common applications.

Spare parts

Spare parts

Screw cap


Cell base

Recommended PAT-Core configurations

This information can be used as a guide for building the PAT-Cell. More PAT-Core setups can be found here.

3-electrode testing with aprotic LiPF6 based electrolytes

2-electrode testing with aprotic LiPF6 based electrolytes

3-electrode testing with aprotic supercap electrolytes

*x = Height number (50 to 800). Use our configurator to determine the proper lower plunger.

**AC = Activated carbon


Sample test results

Monitoring of half cell voltages during the initial cycles of NCA vs. GraphiteMonitoring of half cell voltages during the initial cycles of NCA vs. Graphite
Full and half cell impedance spectra of NCA vs. Graphite at a full cell voltage of 3.8VFull and half cell impedance spectra of NCA vs. Graphite at a full cell voltage of 3.8V
Long-term cycling test of NCM vs. GraphiteLong-term cycling test of NCM vs. Graphite


Introduction PAT-Series Part 1

This video introduces the EL-CELL PAT series and shows the core features and benefits.

Introduction PAT-Series Part 2
The PAT-Core

Learn more about the funcionality and benefits of the PAT-Core, the essential part of every PAT-Cell, as well as assembly procedures.

Introduction PAT-Series Part 3
The PAT-Cell

Here we explain the different parts of the PAT-Cell and show how to replace them easily

Introduction PAT-Series Part 4
PAT-Cell assembly in the glove box

See the assembly procedures of the PAT-Core and PAT-Cell in a glovebox environment.

Watch and download more of our videos on our video page.

Recommended tools


High precision cutting pliers to eliminate torn and chipped electrode edges. Recommended diameter size for use with the PAT-Cell is 18 mm.

Product details


Punching tool for lithium foil. The recommended size for use with the PAT-Cell is 18 mm.

Product details

Related products


The PAT-Tester-i-16 integrates a temperature controlled cell chamber and docking station with a potentiostat/galvanostat into one single instrument.

Product details


Temperature-controlled docking station for PAT series test cells

Product details

PAT Stand-16

High-througput docking station for up to 16 PAT-Cells

Product details


The PAT series test cell for two- and three-electrode testing with aqueous electrolytes

Product details

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