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Three dimensional nano-LiMn_(0.6)Fe_(0.4)PO_4@C/CNT as cathode materials for high-rate lithium-ion batteries 被引量:2
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作者 Huan Zhang Zhikai Wei +5 位作者 Jinjin Jiang Lei Wang Qi Wan Tao Chen Meizhen Qu Mianzhong Chen 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2018年第2期544-551,共8页
Three dimensional(3D) nano-LiMn0.6Fe0.4PO4@C/CNT composite was successfully synthesized by an oleylamine-assisted solvothermal method. The prepared composite showed excellent electrochemical performance, especially ... Three dimensional(3D) nano-LiMn0.6Fe0.4PO4@C/CNT composite was successfully synthesized by an oleylamine-assisted solvothermal method. The prepared composite showed excellent electrochemical performance, especially superior high rate capability. It could deliver a specific discharge capacity of103.1 mAh/g, even at 80 C. The superior high rate performance of the as-prepared LiMn0.6Fe0.4PO4@C/CNT electrode is attributed to its unique 3D conducting network:(1) the prepared LiMn0.6Fe0.4PO4@C active particles were in nano-scale with a size of 30-50 nm;(2) LiMn0.6Fe0.4PO4 nanoparticles were uniformly coated by amorphous carbon with a thickness of 3 nm;(3) the graphitized conductive CNTs were dispersed homogenously among the LiMn0.6Fe0.4PO4@C active particles. The synergistic effect of the nanoscale amorphous carbon coated LiMn0.6Fe0.4PO4@C active particles and the graphitized CNTs reduces the diffusion path of the lithium ions and benefits the transference ability of electron. 展开更多
关键词 LiMn0.6 Fe0.4 PO4 Carbon nanotubes Nanoparticles oleylamine-assisted
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