LiNi0.5Mn1.5O4 porous nanorods as high-rate and long-life cathodes for Li-ion batteries

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題名:	LiNi0.5Mn1.5O4 porous nanorods as high-rate and long-life cathodes for Li-ion batteries
作者:	鄭芳怡;Zhang, Xiaolong;Cheng, Fangyi;Yang, Jingang;Chen, Jun
貢獻者:	地球科學學院大氣科學學系
關鍵詞:	Applied sciences;Cross-disciplinary physics: materials science;rheology;Direct energy conversion and energy accumulation;Electrical engineering. Electrical power engineering;Electrical power engineering;Electrochemical conversion: primary and secondary batteries, fuel cells;Exact sciences and technology;Materials science;Methods of nanofabrication;Nanocrystalline materials;Nanoscale materials and structures: fabrication and characterization;Nanotubes;Physics
日期:	2013-06-12
上傳時間:	2026-04-21 13:39:56 (UTC+8)
出版者:	American Chemical Society;Washington, DC: American Chemical Society
摘要:	摘要： Spinel-type LiNi0.5Mn1.5O4 porous nanorods assembled with nanoparticles have been prepared and investigated as high-rate and long-life cathode materials for rechargeable lithium-ion batteries. One-dimensional porous nanostructures of LiNi0.5Mn1.5O4 with ordered P4332 phase were obtained through solid-state Li and Ni implantation of porous Mn2O3 nanorods that resulted from thermal decomposition of the chain-like MnC2O4 precursor. The fabricated LiNi0.5Mn1.5O4 delivered specific capacities of 140 and 109 mAh g–1 at 1 and 20 C rates, respectively. At a 5 C cycling rate, a capacity retention of 91% was sustained after 500 cycles, with extremely low capacity fade (<1%) during the initial 300 cycles. The remarkable performance was attributed to the porous 1D nanostructures that can accommodate strain relaxation by slippage at the subunits wall boundaries and provide short Li-ion diffusion distance along the confined dimension. 其他題名： Nano Lett 出版者： Washington, DC: American Chemical Society 出版日期： 2013-06-12 出處： Nano letters, 2013-06, Vol.13 (6), p.2822-2825 資源來源： American Chemical Society Journals 版權： Copyright © 2013 American Chemical Society 版權： 2014 INIST-CNRS 識別號： ISSN: 1530-6984 識別號： EISSN: 1530-6992 識別號： DOI: 10.1021/nl401072x
顯示於類別:	[大氣科學學系] 期刊論文

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