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Battery Grade Vanadium Pentoxide has a high specific capacity and energy (443 mAh g-1 and 1,550 Wh kg-1), but it cannot be used as the cathode material in practical battery applications due to long-standing problems with low intrinsic electronic conductivity, slow lithium-ion diffusion, and irreversible phase transitions on deep discharge.
Here, we create a technique for adding graphene sheets via the sol-gel process to vanadium pentoxide nanoribbons. The resulting graphene-modified nanostructured Battery Grade Vanadium Pentoxide hybrids have a specific capacity of 438 mAh g-1, which is close to the theoretical value (443 mAh g-1), a long cyclability, and significantly improved rate capability.
Despite having only 2 weight percent graphene, these hybrids have exceptional electrochemical performance. The combined effects of graphene’s effects on structural stability, electronic conduction, vanadium redox.
The Global Battery Grade Vanadium Pentoxide market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
High-purity Battery Grade Vanadium Pentoxide manufacturing is the subject of the innovation. A technical vanadium-containing leaching product is produced in step A by adding a vanadium-containing leaching product produced by calcining roasting vanadium slag and acid leaching to a mixture of carbonate ions, ammonium ions, and aqueous ammonia solution, mixing to form a precipitate, and separating liquid from solid material.
Ammonium ions are supplied with ammonium sulphate, ammonium carbonate, or ammonium bicarbonate, while sodium carbonate or sodium bicarbonate are used to supply carbonate ions.
To achieve purified technical vanadium-containing leaching product, stage B involves washing technical vanadium-containing leaching product in hot water. Stage C entails adjusting the pH of the purified leaching product containing vanadium to a range of 1.5 to 2.5 before introducing the leaching product.
Adding the aforementioned leaching product to an ammonium sulphate solution with a pH range of 1.5 to 2.5 and a boiling point of 90 °C, maintaining the temperature while stirring continuously to produce a precipitate, and then separating the liquid from the solid to obtain extremely pure ammonium polyvanadate.
After that, high-purity vanadium pentoxide is produced by washing, drying, and firing ammonium polyvanadate.EFFECT: producing highly pure vanadium oxide that satisfies the specifications for raw materials for batteries.8 cl, 3 ex
