| abstract |
The invention discloses a bio-based liquid flow battery electrolyte material and a preparation method thereof, belonging to the technical field of battery energy storage. In the invention, the lignin is degraded by catalytic oxidation of the heteropolyacid, then the vanillin in the lignin is extracted and purified, and then deformylation is realized by means of hydrogen peroxide in an alkaline environment to obtain 2-methoxyhydroquinone. 2-Methoxyhydroquinone is a quinone compound, which can realize energy storage through the redox reaction between quinone and hydroquinone, and improve the electrochemical activity. Compared with traditional metal electrolytes, 2-methoxyhydroquinone is used as anode electrolyte material for aqueous flow batteries. Compared with traditional metal electrolytes, it has rich sources, is environmentally friendly, has high electric capacity, avoids the crossover of metal ions, and has a long service life. Applied to large-scale energy storage technology. |