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All-vanadium flow energy storage electrolyte
Shandong Enersea New Materials Technology Co., Ltd. is a joint venture between ENERFLOW Technology Co., Ltd. and Shandong Haihua Co., Ltd. (000822. SZ)
Shandong Enersea New Materials Technology Co., Ltd. is a joint venture between ENERFLOW Technology Co., Ltd. and Shandong Haihua Co., Ltd. (000822. SZ)
Product description
Shandong Enersea New Materials Technology Co., Ltd. is a joint venture between ENERFLOW Technology Co., Ltd. and Shandong Haihua Co., Ltd. (000822. SZ), focusing on the research and development of electrolytes for liquid flow batteries and intelligent manufacturing. Enersea has established a complete intellectual property system, with a total of 20 authorized invention patents, 3 international patents, and 14 pending invention patents. The project covers an area of 156 acres and will be completed and put into operation in the first phase in 2024, achieving an annual production capacity of 60000 cubic meters of electrolyte.
As the only benchmark factory in China that enables free switching and large-scale manufacturing of hydrochloric acid based, mixed acid based, and sulfuric acid based electrolytes, we have built the industry's first continuous electrolyte production line. With the company's independently developed intelligent control system, we achieve batch production and modular control of electrolytes.
Parameters of Hydrochloric Acid-based / Mixed Acid-based / Sulfuric Acid-based Electrolyte for VRFB
| Electrolyte Type | Vanadium Concentration (mol/L) | Anion Concentration (mol/L) | Vanadium Valence | Density (g/mL) | Operating Temp. C | Energy Density (Wh/L) |
| Hydrochloric Acid-based | 1.7~3.5 | 5.0 ~ 9.0 | 3.5 | ≈ 1.3~1.4 | -35 ~ 65 | 15 ~ 45 |
| Mixed Acid-based | 2.0 ~ 4.0 | 3.0 ~ 10.0 | 3.5 | ≈ 1.5 | -5 ~ 50 | 10 ~ 50 |
| Sulfuric Acid-based | 1.6 ~ 1.8 | 3.0 ~ 5.0 | 3.5 | ≈ 1.3~1.4 | 0 ~ 45 | 10 ~ 25 |
Energy Density of Electrolyte for VRFB (Wh/kg of V)
| Hydrochloric Acid-based Electrolyte (2.0mol/L) | Mixed Acid-based Electrolyte (2.3mol/L) | Sulfuric Acid-based Electrolyte (1.7mol/L) | |
| Charging | 296.6 | 342.7 | 291 |
| Discharging | 245.6 | 277.4 | 231.5 |
Note: Non-standard unit for intuitive calculation of vanadium cost
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