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1Three-dimensional interconnected cobalt oxide-carbon hollow spheres arrays as cathode materials for hybrid batteries显示文摘Hierarchical porous metal oxides arrays is critical for development of advanced energy storage devices.Herein, we report a facile template-assisted electro-deposition plus glucose decomposition method for synthesis of multilayer CoO/C hollow spheres arrays. The CoO/C arrays consist of multilayer interconnected hollow composite spheres with diameters of ~350 nm as well as thin walls of ~20 nm.Hierarchical hollow spheres architecture with 3D porous networks are achieved. As cathode of high-rate hybrid batteries, the multilayer CoO/C hollow sphere arrays exhibit impressive enhanced performances with a high capacity(73.5 m Ahg^(-1)at 2 Ag^(-1)), and stable high-rate cycling life(70 m Ahg^(-1)after12,500 cycles at 2 Ag^(-1)). The improved electrochemical performance is owing to the composite hollowsphere architecture with high contact area between the active materials and electrolyte as well as fast ion/electron transportation path.Jiye Zhan Xinhui Xia Yu Zhong Xiuli Wang Jiangping Tu 2016Progress in Natural Science:Materials International2016,26,3:0
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