Aqueous Electrolyte (2.0 M ZnBr2) for Zn-Br2 Redox Flow Battery, 500 mL/bottle, CZBRFBAE
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In a Zinc-Bromine (Zn-Br2) flow battery, the electrolyte plays a dual role: it acts as the source of active materials and the medium for energy storage. Unlike "all-liquid" systems like Vanadium, the Zn-Br2 battery is a hybrid flow battery because the zinc is stored as a solid metal on the electrode during charging. The electrolyte is typically a single aqueous solution shared by both the positive and negative loops. (1) Main Salt: 1.0 M to 3.0 M Zinc Bromide (ZnBr2) dissolved in water. (2) Supporting Salts: Potassium chloride (KCl) or sodium chloride (NaCl) are often added to improve the ionic conductivity of the solution. (3) Complexing Agents: Quaternary ammonium salts (e.g., MEP or MEM) are essential additives. They bind with the liquid bromine (Br2) produced during charging to form a dense, oily "polybromide" phase that sinks to the bottom of the tank, preventing self-discharge and reducing toxic bromine vapors.
| Part Number |
CZBRFBAE (C-ZBRFB-AE) |
| Appearance |
Black (or dark blue) solution |
| Density |
1.38 g/cm3 |
| Electrolyte Composition |
2.0 mol/L ZnBr2 (KCl as supporting component, and MEP complex agent) |
| Package Grade |
500 mL/bottle |
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