Copolymerization- Assisted Preparation of Porous LiMn2O4 Hollow Microspheres as High Power Cathode of Lithium-ion Batteries

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	Copolymerization- Assisted Preparation of Porous LiMn2O4 Hollow Microspheres as High Power Cathode of Lithium-ion Batteries
	Zou, Zhimin; Li, Zhaojin; Zhang, Hui; Wang, Xiaohui; Jiang, Chunhai; Jiang, CH (reprint author), Xiamen Univ Technol, Inst Adv Energy Mat, Sch Mat Sci & Engn, Fujian Prov Key Lab Funct Mat & Applicat, Xiamen 361024, Peoples R China.; Wang, XH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
刊名	JOURNAL MATER SCI TECHNOL
	2017-08-01
卷号	33 期号:8 页码:781-787
关键词	Li-ion Batteries Cathode Limn2o4 Hollow Spheres Rate Capability
ISSN号	1005-0302
英文摘要	Porous LiMn2O4 hollow microspheres were facilely prepared by incorporation of Li and Mn elements into a spherical polymeric precursor through copolymerization of lithium and manganese acetates with resorcinol and hexamethylenetetramine and then burning off the organic matrix at appropriate temperatures in air. The LiMn2O4 inherited the spherical morphology of the polymeric precursor but showed hollow porous structure assembled by nanocrystals of about 50-100 nm in size. When tested as cathode of Li-ion batteries, the LiMn2O4 hollow spheres exhibited excellent rate capability and cycle stability. A discharge capacity of above 90 mAh g(-1) was maintained at 10 C (1 C = 120 mAg(-1)), and the cells can still deliver a discharge capacity over 100 mAh g(-1) after another 115 cycles at 0.5 C. With such excellent electrochemical properties, the prepared LiMn2O4 hollow microspheres could be promising cathode of Li-ion batteries for long term and high power applications. (C) 2016 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.; Porous LiMn2O4 hollow microspheres were facilely prepared by incorporation of Li and Mn elements into a spherical polymeric precursor through copolymerization of lithium and manganese acetates with resorcinol and hexamethylenetetramine and then burning off the organic matrix at appropriate temperatures in air. The LiMn2O4 inherited the spherical morphology of the polymeric precursor but showed hollow porous structure assembled by nanocrystals of about 50-100 nm in size. When tested as cathode of Li-ion batteries, the LiMn2O4 hollow spheres exhibited excellent rate capability and cycle stability. A discharge capacity of above 90 mAh g(-1) was maintained at 10 C (1 C = 120 mAg(-1)), and the cells can still deliver a discharge capacity over 100 mAh g(-1) after another 115 cycles at 0.5 C. With such excellent electrochemical properties, the prepared LiMn2O4 hollow microspheres could be promising cathode of Li-ion batteries for long term and high power applications. (C) 2016 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	Natural Science Foundation of Fujian Province [2016J01746, 2016H0038]; "Minjiang Scholarship" program [60815002]; XMUT [E2015027, E2016005]
公开日期	2018-01-10
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79159]
专题	金属研究所_中国科学院金属研究所
通讯作者	Jiang, CH (reprint author), Xiamen Univ Technol, Inst Adv Energy Mat, Sch Mat Sci & Engn, Fujian Prov Key Lab Funct Mat & Applicat, Xiamen 361024, Peoples R China.; Wang, XH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Zou, Zhimin,Li, Zhaojin,Zhang, Hui,et al. Copolymerization- Assisted Preparation of Porous LiMn2O4 Hollow Microspheres as High Power Cathode of Lithium-ion Batteries[J]. JOURNAL MATER SCI TECHNOL,2017,33(8):781-787.
APA	Zou, Zhimin.,Li, Zhaojin.,Zhang, Hui.,Wang, Xiaohui.,Jiang, Chunhai.,...&Wang, XH .(2017).Copolymerization- Assisted Preparation of Porous LiMn2O4 Hollow Microspheres as High Power Cathode of Lithium-ion Batteries.JOURNAL MATER SCI TECHNOL,33(8),781-787.
MLA	Zou, Zhimin,et al."Copolymerization- Assisted Preparation of Porous LiMn2O4 Hollow Microspheres as High Power Cathode of Lithium-ion Batteries".JOURNAL MATER SCI TECHNOL 33.8(2017):781-787.