Self-anchoring dendritic ternary vanadate compound on graphene nanoflake as high-performance conversion-type anode for lithium ion batteries

摘要: Abstract Development of three-dimensional ternary vanadate compounds with excellent structural stability on exfoliated graphene nanoflacks allows the first success conversion-type sodium anode candidate for high-rate and long-life lithium-ion batteries(LIBs). Corresponding additive-free self-anchoring behavior active vanadates material surface is representatively investigated, architecturing unique dendritic structure, a first-of-this-kind configuration, robust flexibility sufficient capability structure-preservation. The prepared nanocomposite provides high reversible capacity over 800 mA h g−1 ultrafast charging/discharging Li-ions via reaction. More remarkably, well-designed structure retains more than 96% initial respect to their ultralong cycling stability, demonstrating combined advantages facile hydrothermal protocol, loading architecture configuration high-performance storage. As consequence, this research reveals importance effectiveness self-assembling nanoflakes 3D hierarchial indicates significant potential developing as promising LIBs.