Published August 2, 2026
| Version v1
Dataset
Flow Battery Reproducibility Study – Participant 48 (Phase 2b)
Description
Submission from participant 48 as part of the Flow Battery Reproducibility Study, Phase 2b. Job role: Postgrad/PhD student. Experience: < 6 months.
Additional details
Domain Specific Metadata
| Property | Value |
|---|---|
| Fb Data Collection Phase | Phase 2b |
| Fb Job Role | Postgrad/PhD student |
| Fb Experience Flow Batteries | < 6 months |
| Fb Participant Identifier | 48 |
| Fb Number Of Repeats | 3 |
| Fb Electrode Pretreatment Type | Heat-treated |
| Fb Heat Treatment Furnace Type | Box |
| Fb Heat Treatment Atmosphere | Air |
| Fb Heat Treatment Ramp Rate | 3.33 |
| 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 | 24.0 |
| Fb Electrode Storage After Heat Treatment | Open to air |
| Fb Electrode Storage After Receipt | Open to air |
| Fb Membrane Storage Type | Wet |
| Fb Membrane Storage Liquid | deionised H2O |
| Fb Membrane Storage Details | Between consecutive runs, the membrane was removed only briefly during cell disassembly/reassembly. During this short interval it was kept fully submerged in deionized water, and then immediately reinstalled for the next experiment. No long-term storage was applied between these two runs. |
| Fb Membrane Pretreatment | No (used as received) |
| Fb Ferrocyanide Chemical Details | Potassium hexacyanoferrate(II) trihydrate, K4Fe(CN)6 · 3H2O |
| Fb Ferrocyanide Purity | 98.5 |
| Fb Ferrocyanide Supplier | Sigma Aldrich |
| 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 | Supelco |
| Fb Water Type | Deionised |
| Fb Water Purification System | Unknown |
| Fb Water Purification Details | Unknown |
| Fb Electrolyte Preparation Strategy | Multiple stock batches used across repeats |
| Fb Electrolyte Batch Size | 500.0 |
| Fb Electrolyte Storage Environment | Dark (cupboard/covered) |
| Fb Electrolyte Storage Duration | 168.0 |
| Fb Electrolyte Volume Measurement Method | Volumetric |
| Fb Reagent Purity Used | Yes |
| Fb Water Ph Measured | No |
| Fb Electrolyte Ph Measured | No |
| Fb Electrode Cutting Method | Freehand cutting using scissors |
| Fb Potentiostat Usage | Different instruments for some/all tests |
| Fb Potentiostat Manufacturer Cycling | Ivium | other (please specify) |
| Fb Potentiostat Model Cycling | LANDT G340A |
| Fb Potentiostat Manufacturer Polarisation | Other |
| Fb Potentiostat Model Polarisation | LANDT G340A |
| Fb Potentiostat Manufacturer Impedance | Biologic |
| Fb Potentiostat Model Impedance | SP-240 |
| Fb Potentiostat Calibration Frequency | Unknown |
| Fb Connection Method | Crocodile/alligator clips |
| Fb Electrical Connection Scheme | 2-point (4-wire) |
| Fb Potentiostat Cable Length | 2–3 m |
| Fb Potentiostat Cable Type | Manufacturer cable with third-party extension |
| Fb Potentiostat Cable Shielding | Mixed shielding |
| 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 | 200.0 |
| 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 | Not recorded |
| Fb Pump Flow Rate Calibrated | Yes |
| Fb Calibration With Cell | Yes |
| Fb Calibration Fluid | Water |
| Fb Pump Recalibrated | No |
| Fb Pump Calibration Method | Manual volumetric |
| Fb Leak Test Performed | Yes |
| Fb Break In Performed | Yes |
| Fb Break In Duration | 0.08 |
| Fb Break In Flow Rate | 25 |
| Fb Cell Assembly Issues | We were unable to reach the specified tightening torque (2 N·m). Despite multiple attempts, the cell consistently became fully tight at ~1.5 N·m and could not be tightened further. |
| 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 | No |
| Fb Electrolyte Sparging | No |
| Fb Polarisation Beyond Limits | No |
| Fb Impedance Control Mode | Potentiostatic (PEIS) |
| Fb Consent Public Display | Yes |