857 Redox Flow Cell Test System
Product Descriptions
The 857 is an Integrated Turn-Key Test System for Redox Flow Cell Research & Development. It boasts a 20 A current range as well as a multi-range potentiostat for high accuracy. Included with the system is the powerful, user friendly FlowCell™ software for system operation & experimentation.
• 0.07 A, .07 A, 7 A, 20 A current range
• High-current, multi-range potentiostat operates in current- or voltage-controlled operation
• ± 5 V operation for non-aqueous electrolytes
• Charge / discharge cycling & performance characterization
• Four reservoir sizes- 100 mL, 250 mL, 500 mL, and 1 L
• Whole and half-cell voltage, EIS and HFR measurement
• Impedance Analyzer for EIS and HFR measurements during charge, discharge and at OCV
• High-impedance V-sense inputs for whole and half-cell measurements including EIS & HFR
• State-of-charge (SOC) voltage inputs for DC SOC measurement when used with SOC cell
• All non-metallic electrolyte handling system: pumps, electrolyte reservoirs, drain and purge valves
• Cell and electrolyte temperature control up to 50°C
• Peristaltic pumps with variable flow control including forward and reverse
• Electrolyte shielding with inert gas purge blanket
• Electrolyte reservoir stirring
| Potentiostat: | |
| Current Ranges | 20 A, 7 A, 700 mA, 70 mA full scale (FS) |
| Current Resolution | 1.4 mA (20 A FS) to 4.88 µA (70 mA FS) |
| Current Accuracy | ± 1% of full scale current of selected range |
| Voltage Measurement and Data Acquisition: | |
| Set and Read Voltage vs. WE | ± 5.000 V |
| Cell Voltage Sense Leads | Differential with driven shields |
| Voltage Measurement Resolution | 152 µV |
| Sense Lead Input Resistance | 1 GΩ |
| Data Acquisition Rate | 10 points/second |
| Impedance Analyzer: | |
| Internal Impedance Analyzer Type | Single sine, one generator and two gain/phase measurement channels |
| Internal Analyzer Frequency Range | 1 mHz to 10 kHz |
| Electrolyte Fluid Handling System | Computer-controlled peristaltic pumps (2); <1 to 1,000 mL/min |
| All non-metallic flow path and reservoirs | |
| Independent drain & purge valves for positive & negative electrolytes | |
| Nitrogen purge and blanket; Electrolyte level monitoring | |
| Temperature Controllers: | |
| Three | Cell, anode electrolyte, cathode electrolyte |
| Set & Report Accuracy | ±0.25% of span, ±1 least significant digit |
| Sensor Type | Thermocouple, Type T |
| Environment: | |
| Operating Temperature | 5 to 35 °C |
| Power Source | 110-120 V, 50-60 Hz, 10 A (Export model 220-240 V, 50-60 Hz, 5 A) |
| Size and Weight | Electronic Control Unit: 48 W x 13 H x 53 D cm3 (19 x 5.25 x 21 in3); 9 kg (20 lb) |
| Fluid Control Unit | 50 W x 65 H x 65 D cm3 (20 x 25 x 25 in3); 16 kg (35 lb) |
