Electrochemical Dilatometer

Download Brochure The Optimal Test Cells for the measurements of height changes in aprotic as well as aqueous electrolytes. The ECD-4-nano is a high-resolution electrochemical dilatometer. The most powerful version offers a capacitive parallel plate sensor system with a resolution of better than 5 nanometers. This makes the ECD-4-nano the perfect instrument for detecting thickness changes of the individual electrode or the full cell stack during the electrochemical cycle. The ECD-4-nano‘s completely redesigned test cell features a corrosion-resistant cell bottom and a new One-Seal concept that significantly improves tightness over previous ECD-3 models. This enables stable long-term operation as well as the use of a wide range of electrolytes. To further improve workflow and handling, we have now integrated the ECD-4-nano into the PAT system. The dilatometer can be inserted directly into a PAT-Tester-x or a docking station such as the PAT-Clamp-1. This allows a space-saving and fast setup of the instrument. Needless to say, the integrated PAT-Button also ensures automatic recognition of the test cell in our EL-Software measurement software. Working principle (3-electrode setup) The working electrode (WE) and the counter electrode (CE) are separated by a stiff glass frit soaked with electrolyte. The WE is sealed by meansof a flexible metal membrane, through which any charge-induced thickness change is transmitted towards the sensor/load unit attached on top. The fixation of the glass frit ensures that only the thickness change of the WE is being detected without interference from the CE.         Specifications     Length 64 mm Width 67 mm Height 149 mm Weight 2 kg Sample diameter 10 mm Glass T-Frit (Separator) 12.5/10 x 3.5 mm Separator diameter (full cell mode) max. 10 mm Working (upper) electrode diameter max. 10 mm Counter (lower) electrode diameter max. 12 mm Gas pressure sensor: 0 to 3 bar abs. Temperature sensor -20 to 80° C Chemical compatibility Aprotic organic electrolytes Cell electrolyte volume approx. 0.2 ml Operational temperature range (cell and sensor) -20 to 80° C Operational temperature range (conditioning electronics and data logger) 0 to 40 °C Load on test specimen approx. 1 Newton Displacement sensor type: Capacitive Displacement range: 250 μm Displacement resolution: ≤ 5 nm