Electrochemical battery test cell with reference electrode

Make the move to the PAT-Cell

Our new PAT series test cells offer many advantages over their ECC predecessors:

No more drying and cleaning of cell components

Superior half-cell impedance measurements due to the ring-shaped reference electrode

Easy-to-use cableless design prevents cable clutter and saves time and effort.  Just insert into a PAT docking station or PAT battery tester and start characterization.

Reworked cell design with improved sealings for much better long-term stability

Patented PAT-Core concept with ready-to-use cell components vastly reduces assembly times

Perfectly matched potentiostats from EL-CELL available for improved workflow and productivity

Learn more about the PAT-Cell

The ECC-Ref electrochemical cell is dedicated to the characterization of aprotic battery and capacitor systems in three-electrode configuration. A typical application is the characterization of a full lithium-ion battery (e.g. graphite anode and lithium metal oxide cathode) with a lithium metal reference. A re-fitting kit is available to use the ECC-Ref cell in two-electrode configuration, thus converting the ECC-Ref into the ECC-Std test cell.

Cell parts that come in contact with the electrolyte are made of stainless steel and PEEK and can thus withstand all common aprotic organic electrolytes used in lithium-ion battery and aprotic supercapacitor technology. Current collectors are also available in many other metals like 316L (1.4404), gold and tantalum.

ECC-Ref overview


High precision 18 mm diameter sandwich geometry with <0.1 mm electrode concentricity

Adjustable, reproducible and homogeneous mechanical pressure on electrodes

Reliable low leakage sealing with PE washers

Easy and reliable electrolyte filling during assembly

Fast assembly and dismantling and easy cleaning of cell components

Electrodes are easily accessible for post-mortem analysis

Reusable cell components except for PE sealing

Materials in media contact are stainless steel 1.4404 and PEEK (other materials on request)

Small and defined electrolyte volume down to 0.1 cm3 due to minimized dead volume

Materials in media contact are stainless steel and PEEK

Special materials/ solutions on request

Optionally available: Ref to Std downgrade kit

Delivery scope
Component Order no.
ECC-Ref test cell
PE-Seal (10 pcs.) ECC1-00-0053-A/X
Sleeve Removing Tool ECC1-00-0092-A
Glass fiber separator 18 mm x 1.55 mm (10 pcs.) ECC1-01-0012-C/X
Item nameOrder no.Webshop
Ferrule (plug), 50 pcsECC1-00-0029-D/LECC-StdBuy online
Ferrule1.0 mm, 50 pcsECC1-00-0029-B/LECC-RefBuy online
Separator (Celgard 2325) 18 x 0.025 mm, 50 pcsECC1-01-0022-C/LECC-Std
Separator (GF) 18 x 1.55 mm, 50 pcsECC1-01-0012-C/LBuy online
PE Seal, 50 pcsECC1-00-0053-A/LBuy online
PEEK Seal, 10 pcsECC1-00-0053-D/X
PTFE Seal (ECC Series), 10 pcsECC1-00-0053-B/XBuy online
Heat Resistance Set

The Heat Resistance Set increases the temperature range for testing with the ECC-Ref to 150 °C.

Package content
Heat Resistance Set (ECC-Series) ECC1-01-0040-A
ECC-Series Cell Cable Set HT ECE1-00-0037-B
HT Foot (heat resistant), (3 pcs) ECC1-00-0065-B
PTFE Seal (ECC Series), (10 pcs) ECC1-00-0053-B/X
Spare parts

Test cell

Reference electrode


Reference pin assembly


ECC-Ref wiring setup for testingECC-Ref wiring setup for testing
Schematic view of the ECC-Ref

Recommended tools


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

Product details


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

Product details


Ref loading tool – Useful tool for conveniently loading the Ref-sleeve

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Electrode alignment and assembly tool

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Related products


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Electrochemical test cell for two-electrode battery testing

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Electrochemical test cell applicable both as 2- and 3-electrode test cell

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