LITHIUM VANADATE (cas 15060-59-0) [email protected] graphene oxide nanocomposites on titanium foil with super high capacities for lithium-ion batteries

Add time:07/24/2019    Source:sciencedirect.com

With a theoretically high capacity and suitable discharge/charge plateaus, LITHIUM VANADATE (cas 15060-59-0)s (such as Li0.04V2O5) can be used as cathode material for lithium ion batteries. Herein, Li0.04V2O5 nanowires are densely anchored onto reduced graphene oxide (rGO) nanosheets to form a Li0.04V2O5@rGO nanocomposite by a hydrothermal method with subsequent thermal treatment. Due to this unique structure, the Li0.04V2O5@rGO exhibits remarkable rate performance and excellent cycling stability. Specifically, it delivers a reversible discharge capacity of 738.09 mA h g−1 at a current density of 100 mA g−1 in the voltage range of 2.0–4.0 V. After 500 cycles, it still maintains a high capacity of 731.70 mA h g−1, which represents 95.01% retention of the original reversible capacity. These results indicate that the Li0.04V2O5@rGO could be a promising candidate as cathode active material for long-term cycling performance in lithium-ion batteries.

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