Published August 2, 2026
| Version v1
Dataset
Flow Battery Reproducibility Study – Participant 29 (Phase 2b)
Description
Submission from participant 29 as part of the Flow Battery Reproducibility Study, Phase 2b. Job role: Staff (Postdoc, technical, academic). Experience: 2–5 years.
Additional details
Domain Specific Metadata
| Property | Value |
|---|---|
| Fb Data Collection Phase | Phase 2b |
| Fb Job Role | Staff (Postdoc, technical, academic) |
| Fb Experience Flow Batteries | 2–5 years |
| Fb Participant Identifier | 29 |
| Fb Number Of Repeats | 3 |
| Fb Electrode Pretreatment Type | Heat-treated |
| Fb Heat Treatment Furnace Type | Muffle |
| Fb Heat Treatment Atmosphere | Air |
| Fb Heat Treatment Ramp Rate | 100.0 |
| Fb Heat Treatment Dwell Temperature | 400.0 |
| Fb Heat Treatment Dwell Time | 24.0 |
| Fb Heat Treatment Cooling Method | Passive |
| Fb Heat Treatment Batching | Single batch |
| Fb Time Between Heat Treatment And Use | 1.0 |
| Fb Electrode Storage After Heat Treatment | Open to air |
| Fb Electrode Storage After Receipt | Enclosed (non-inert) |
| Fb Membrane Storage Type | Wet |
| Fb Membrane Storage Liquid | deionised H2O |
| Fb Membrane Storage Details | Stored in container included with test kit, used fresh MilliQ water between repeats |
| 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 | Thermo Scientific |
| Fb Ferricyanide Chemical Identity | Potassium ferricyanide(III), K3Fe(CN)6 |
| Fb Ferricyanide Purity | 99.0 |
| Fb Ferricyanide Supplier | Thermo Scientific |
| Fb Supporting Electrolyte Identity | Potassium chloride, KCl |
| Fb Potassium Chloride Purity | 99.9 |
| Fb Potassium Chloride Supplier | Fisher Scientific |
| Fb Water Type | Deionised |
| Fb Water Purification System | Milli-Q (Merck) |
| Fb Water Purification Details | EQ7000 |
| Fb Water Resistivity | 18.2 |
| Fb Electrolyte Preparation Strategy | Single stock batch used across repeats |
| Fb Electrolyte Batch Size | 1000.0 |
| Fb Electrolyte Storage Environment | Dark (cupboard/covered) |
| Fb Electrolyte Storage Duration | 1.0 |
| 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 | Manual cutting using ruler and razor/scalpel |
| Fb Potentiostat Usage | Single instrument for all tests |
| Fb Potentiostat Manufacturer Cycling | Biologic |
| Fb Potentiostat Model Cycling | SP150e |
| Fb Potentiostat Manufacturer Polarisation | Biologic |
| Fb Potentiostat Model Polarisation | SP150e |
| Fb Potentiostat Manufacturer Impedance | Biologic |
| Fb Potentiostat Model Impedance | SP150e |
| Fb Potentiostat Calibration Frequency | Calibrated only when issues arise |
| Fb Potentiostat Calibration Method | Dummy cell (manufacturer supplied) |
| Fb Connection Method | Crocodile/alligator clips |
| Fb Electrical Connection Scheme | 2-point (4-wire) |
| Fb Potentiostat Cable Length | 1–2 m |
| Fb Potentiostat Cable Type | Manufacturer cable – standard length |
| Fb Potentiostat Cable Shielding | Shielded |
| Fb Number Of Pumps | Single (including dual head) |
| Fb Pump Type | Peristaltic |
| Fb Pump Manufacturer | Watson-Marlow |
| Fb Pump Model | Watson-Marlow 323 |
| Fb Reservoir Material | Glass (borosilicate) |
| Fb Reservoir Type | Duran/Schott bottle (GL bottle) |
| Fb Reservoir Volume | 100.0 |
| Fb Electrolyte Volume Used | 100 |
| Fb Impedance Reservoir Config | Single 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 | Yes |
| Fb Calibration Fluid | Water |
| Fb Pump Recalibrated | Yes |
| Fb Pump Calibration Method | Manual volumetric |
| Fb Leak Test Performed | No |
| Fb Break In Performed | Yes |
| Fb Break In Duration | 12.0 |
| Fb Break In Flow Rate | 25 |
| Fb Cell Assembly Issues | The Cu current collectors had some patina upon arrival. I cleaned that off with dilute HCl and water. |
| Fb Additional Experiments | No |
| Fb Electrolyte Leakage Reported | No |
| Fb Typical Group Practice Leaks | Discard data if any leak occurs | Case-by-case decision | other (please specify) |
| Fb Electrolyte Stirring | Yes |
| Fb Reservoir Stirring Method | Magnetic stir bar |
| Fb Stirring Rate | 200–400 RPM |
| Fb Electrolyte Sparging | Yes |
| Fb Sparging Gas | Argon |
| Fb Gas Humidification | Humidified |
| Fb Sparging Application | Pre-sparge only |
| Fb Sparging Gas Flow Rate | Not recorded |
| Fb Polarisation Beyond Limits | Yes |
| Fb Impedance Control Mode | Potentiostatic (PEIS) |
| Fb Consent Public Display | Yes |