3D Hierarchical Flower-Like Cobalt Ferrite Nanoclusters-Decorated Cotton Carbon Fiber anode with Improved Lithium Storage Performance

The inverse spinel Cobalt ferrite (CoFe2O4, CFO) is considered to be a promising alternative commercial graphite anodes for lithium ion batteries (LIBs). However, the further development of CFO limited by its unstable structure during battery cycling and low electrical conductivity. In an effort address challenge, we construct three-dimensional hierarchical flower-like nanoclusters (CFO NCs)-decorated carbonized cotton carbon fiber NCs/CCF) composite. This consisted microfibers nanoflower cluster composited nanoparticle, in which CCF can used as long-range conductive matrix, while NCs provide abundant active sites, large electrode/electrolyte interface, short diffusion path, alleviated structural stress. As anode materials LIBs, NCs/CCF exhibits excellent electrochemical performance. After 100 cycles at current density 0.3 A g−1, delivers discharge/charge capacity 1008/990 mAh g−1. Even high 15 it still maintains charge/discharge 362/361 Keywords: Ferrite Nanoflowers, Biomass Derived Carbon, Anode, Lithium Ion Batteries