The design of the S-cell stack is a result of almost 10 years of know-how in the field of flow battery test cells and maybe the only research stack product on the market. It was developed for testing/optimisation of components (electrode/membranes/bipolar plates), testing of stack properties, upscaling and demonstration. I can be tested with any number of cells between 1 and 9, electrodes must be at least 1 mm thick, but can be used for any type of electrode material. Different electrode compressions can be obtained by different spacer thicknesses. Stack is supplied with hard bipolar plate materials. Design has been with focus on trade-of between minimizing pressure inside cell and keeping shunt currents low.
Some of the unique features of the S-cell Stack are
- Any number of cells between 1 and 9
- Any electrode thickness > 1 mm
- Individual cell voltages can be measured on the bipolar plates
The electrolyte is only in contact with flow block (graphite), spacers (PTFE, Viton or EPDM), O-ring (Viton/EPDM), bipolar plate, electrode and membrane. The S-cell is intended for optimisation studies, but can also be used a normal flow battery test cell like the A-cell.
TECHNICAL SPECIFICATIONS:
- Active Area: 25cm2 (5 cm x 5 cm) – for other dimension, please make a request
- Only works with electrodes > 1 mm
- Body made out of Graphite – for Titanium or other materials, please make a request
- Stainless steel end plates
- Gold plated cobber current collectors
- Swagelok fittings for tight connecting to 1/8” tubing – for other tube dimensions, please make a request
- Gaskets: See materials variations and thicknesses at Gasket/Spacers
- Comes ready-to-use as on pictures but without membranes and electrodes
- Top-performance – With SGL carbon felt and FS950 membrane, polarisation curve gives ASR of 0.8 Ωcm2 per cell – performance is not limited by cell design but limited by electrodes/membranes
OTHER RESOURCES
