Development of lithium ion battery using fiber-type lithium-rich cathode and carbon anode materials

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Title:	Development of lithium ion battery using fiber-type lithium-rich cathode and carbon anode materials
Authors:	劉奕宏;Liu, Yi-Hung;Takasaki, Tomoaki;Nishimura, Kazuya;Yanagida, Masahiro;Sakai, Tetsuo
Contributors:	工學院化學工程與材料工程學系
Keywords:	Carbon fiber;Li-rich manganese oxides;Lithium ion battery
Date:	2015-09-01
Issue Date:	2026-04-21 14:38:42 (UTC+8)
Publisher:	Elsevier;Elsevier B.V
Abstract:	摘要： A lithium ion battery is developed using fiber-type Li-rich cathode and carbon anode materials. The cathode material is synthesized onto the carbon fiber by a two-step reaction process, namely, the electrodeposition for forming the precursor and the hydrothermal treatment for synthesizing the active material. The active material layer is composed of nanoparticles, which can be identified as a 94.8 wt.% primary Li2MnO3 phase together with a 5.2 wt.% minor Li4Mn5O12 phase based on a synchrotron X-ray diffraction analysis. This cathode possesses a typical irreversible capacity during the first charge/discharge cycle, which can be utilized to compensate for the anode one, enabling the full cell to work without an initial predoping. In addition, the cell exhibits a rapid activation, favorable coulomb efficiency and high-rate performance, suggesting that the fiber-type electrodes are structurally beneficial for the electrical conduction and ion diffusion. On the other hand, its discharge capacity fades with cycling, which can be attributed to the phase transformation from the layered Li2MnO3 to the spinel LiMn2O4. •A Li2MnO3\|C lithium ion battery using fiber-type electrodes is developed.•Li2MnO3 is hydrothermally synthesized onto the carbon fiber at 110 °C.•Fiber-type electrodes are structurally beneficial for ion insertion/extraction.•A full cell consisted of fiber-type electrodes shows a good high-rate performance. 出版者： Elsevier B.V 出版日期： 2015-09-01 出處： Journal of Power Sources, 2015-09, Vol.290, p.153-158 資源來源： Elsevier ScienceDirect Journals Complete - Autoholdings 版權： 2015 Elsevier B.V. 識別號： ISSN: 0378-7753 識別號： EISSN: 1873-2755 識別號： DOI: 10.1016/j.jpowsour.2015.04.180
Appears in Collections:	[Department of Chemical and Materials Engineering] journal & Dissertation

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