Published August 2, 2026
| Version v1
Dataset
Flow Battery Reproducibility Study – Participant 14 (Phase 2b)
Description
Submission from participant 14 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 | 14 |
| 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 | 0.0 |
| 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 | 120.0 |
| Fb Electrode Storage After Heat Treatment | Enclosed (non-inert) |
| 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 |
| 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 | Acros Organics |
| 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 | 99.5 |
| Fb Potassium Chloride Supplier | Sigma Aldrich |
| Fb Water Type | Deionised |
| Fb Water Purification System | Avidity Duo II I |
| Fb Water Purification Details | Avidity Duo II I |
| 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 | 142.0 |
| 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 | SP-300 |
| Fb Potentiostat Manufacturer Polarisation | Biologic |
| Fb Potentiostat Model Polarisation | SP-300 |
| Fb Potentiostat Manufacturer Impedance | Biologic |
| Fb Potentiostat Model Impedance | SP-300 |
| Fb Potentiostat Calibration Frequency | Not calibrated |
| Fb Connection Method | Banana plug connection |
| 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 | Masterflex (Cole-Parmer/Avantor) |
| Fb Pump Model | Masterflex L/S Digital Drive |
| 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 | Single 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 | Yes |
| Fb Break In Duration | 24.0 |
| Fb Break In Flow Rate | 25 |
| Fb Cell Assembly Issues | Bolts would often not latch onto the nut while in jig, so would often have to remove cell from jig to screw the last few bolts into the nuts. On one occasion, a nut got stuck on a bolt which required destructive removal. Nut and bolt was replaced with a locally sourced equivalent for the following repeat. |
| Fb Additional Experiments | Yes |
| Fb Repeat Method | Full cell disassembly and rebuild, fresh electrolyte |
| Fb Electrolyte Leakage Reported | No |
| Fb Typical Group Practice Leaks | If experiment is investigating capacity utilisation in any way, then experiment is generally stopped and data discarded. However, for experiments where capacity utilisation is not a metric of significant interest i.e. tracking electrolyte compositional changes with operando techniques as a function of material addition to flow-path, leakages are documented but data is kept. |
| Fb Electrolyte Stirring | No |
| Fb Electrolyte Sparging | Yes |
| Fb Sparging Gas | Nitrogen |
| Fb Gas Humidification | Humidified |
| Fb Sparging Application | Continuous sparging |
| Fb Sparging Gas Flow Rate | Not recorded |
| Fb Polarisation Beyond Limits | No |
| Fb Impedance Control Mode | Potentiostatic (PEIS) |
| Fb Consent Public Display | Yes |