Published August 2, 2026
| Version v1
Dataset
Flow Battery Reproducibility Study – Participant 09 (Phase 2b)
Description
Submission from participant 09 as part of the Flow Battery Reproducibility Study, Phase 2b. Job role: Postgrad/PhD student. Experience: 2–5 years.
Additional details
Domain Specific Metadata
| Property | Value |
|---|---|
| Fb Data Collection Phase | Phase 2b |
| Fb Job Role | Postgrad/PhD student |
| Fb Experience Flow Batteries | 2–5 years |
| Fb Participant Identifier | 09 |
| Fb Number Of Repeats | 1 |
| Fb Electrode Pretreatment Type | None |
| Fb Electrode Storage After Receipt | Enclosed (non-inert) |
| Fb Membrane Storage Type | Wet |
| Fb Membrane Storage Liquid | deionised H2O |
| Fb Membrane Pretreatment | No (used as received) |
| Fb Ferrocyanide Chemical Details | Potassium hexacyanoferrate(II) trihydrate, K4Fe(CN)6 · 3H2O |
| Fb Ferrocyanide Purity | 99.0 |
| Fb Ferrocyanide Supplier | Roth |
| Fb Ferricyanide Chemical Identity | Potassium ferricyanide(III), K3Fe(CN)6 |
| Fb Ferricyanide Purity | 99.0 |
| Fb Ferricyanide Supplier | Merck |
| Fb Supporting Electrolyte Identity | Potassium chloride, KCl |
| Fb Potassium Chloride Purity | 99.5 |
| Fb Potassium Chloride Supplier | Roth |
| Fb Water Type | Deionised |
| Fb Water Purification System | Unknown |
| Fb Water Purification Details | Unknown |
| Fb Electrolyte Preparation Strategy | Single stock batch used across repeats |
| Fb Electrolyte Batch Size | 1000.0 |
| Fb Electrolyte Storage Environment | Ambient lab light |
| Fb Electrolyte Storage Duration | 48.0 |
| Fb Electrolyte Volume Measurement Method | Volumetric |
| Fb Reagent Purity Used | No |
| Fb Water Ph Measured | No |
| Fb Electrolyte Ph Measured | No |
| Fb Electrode Cutting Method | Freehand manual cutting (approximate fit), razor/scalpel |
| Fb Potentiostat Usage | Single instrument for all tests |
| Fb Potentiostat Manufacturer Cycling | Gamry |
| Fb Potentiostat Model Cycling | Reference 3000 |
| Fb Potentiostat Manufacturer Polarisation | Gamry |
| Fb Potentiostat Model Polarisation | Reference 3000 |
| Fb Potentiostat Manufacturer Impedance | Gamry |
| Fb Potentiostat Model Impedance | Reference 3000 |
| Fb Potentiostat Calibration Frequency | Calibrated only when issues arise |
| Fb Potentiostat Calibration Method | Dummy cell (manufacturer supplied) |
| Fb Connection Method | Bolted/screw connection |
| Fb Electrical Connection Scheme | 2-point (4-wire) |
| Fb Potentiostat Cable Length | 1–2 m |
| Fb Potentiostat Cable Type | Manufacturer cable – extended length |
| Fb Potentiostat Cable Shielding | Shielded |
| Fb Number Of Pumps | Two separate pump |
| Fb Pump Type | Diaphragm |
| Fb Pump Manufacturer | ProMinent |
| Fb Pump Model | ProMinent Delta OptoDrive |
| Fb Reservoir Material | Glass (borosilicate) |
| Fb Reservoir Type | Duran/Schott bottle (GL bottle) |
| Fb Reservoir Volume | 250.0 |
| Fb Impedance Reservoir Config | Double reservoir |
| Fb Polarisation Reservoir Config | Double reservoir |
| Fb Temperature Control | Ambient (not controlled) |
| Fb Laboratory Temperature | 20–22 °C |
| Fb Pump Flow Rate Calibrated | Yes |
| Fb Calibration With Cell | No |
| Fb Calibration Fluid | Water |
| Fb Pump Recalibrated | No |
| Fb Pump Calibration Method | Calibration curve (RPM vs. flow rate) |
| Fb Leak Test Performed | No |
| Fb Break In Performed | No |
| Fb Cell Assembly Issues | Assembly would in general be easier with an assembly rack. Cutting of the felts is a bit complicated due to the rounded edges. Positioning of membrane is a bit inconvenient - probably easier with a membrane cut to the dimensions of the gaskets with holes for the bolts. |
| Fb Additional Experiments | No |
| Fb Electrolyte Leakage Reported | Yes |
| Fb Typical Group Practice Leaks | Tolerate minor leaks but document/report |
| Fb Electrolyte Stirring | Yes |
| Fb Reservoir Stirring Method | Magnetic stir bar |
| Fb Stirring Rate | Not recorded |
| Fb Electrolyte Sparging | No |
| Fb Polarisation Beyond Limits | No |
| Fb Impedance Control Mode | Potentiostatic (PEIS) |
| Fb Consent Public Display | Yes |