Improvement of electrochemical performance of Mn-Fe based

doi:10.1016/j.jallcom.2021.160427

IMR OpenIR

	Improvement of electrochemical performance of Mn-Fe based
	Su, Chang 1; Liu, Guoqiang 1,2; Gao, Yibo 1; Zhang, Yixuan 1; Wen, Lei 3
通讯作者	Liu, Guoqiang(liugq@smm.neu.edu.cn) ; Wen, Lei(leiwen@imr.ac.cn)
	2021-10-15
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	878 页码:12
摘要	This work focused on the improvement on the electrochemical properties of the Mn-Fe based layered oxide materials as cathode for sodium ion batteries. The strategy of substituting Mn by cheap Mg element is studied in detail. The influences of Mg content on the crystal structure and electrochemical properties are investigated by XRD and charge-discharge tests, respectively. The composition with the most optimum Mg content is determined as Na0.69Mn0.82Fe0.08Mg0.1O2. It exhibits improved performance compared with previously reported literature. Its initial discharge capacity reached 175.8 mAh g-1 at a current density of 20 mA g-1. Meanwhile, it displays much better rate capabilities with a capacity retention as high as 71.6% after 100 cycles at a higher current rate of 100 mA g-1. More significantly, it can deliver high discharge capacities of 121, 102, and 91 mAh g & minus;1 at high current densities of 400, 1000, and 2000 mA g-1, respectively. (c) 2021 Elsevier B.V. All rights reserved.
关键词	Sodium ion batteries Cathode materials Mn-Fe based layered oxide Mg doping Electrochemical properties
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jallcom.2021.160427
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51574081]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000660477400006
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/160657
专题	中国科学院金属研究所
通讯作者	Liu, Guoqiang; Wen, Lei
作者单位	1.Northeastern Univ, Sch Met, Minist Educ, Key Lab Ecol Met Multimetall Mineral, Shenyang 110819, Liaoning, Peoples R China 2.Nankai Univ, Coll Chem, Key Lab Adv Energy Mat Chem, Minist Educ, Tianjin 300071, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Su, Chang,Liu, Guoqiang,Gao, Yibo,et al. Improvement of electrochemical performance of Mn-Fe based[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,878:12.
APA	Su, Chang,Liu, Guoqiang,Gao, Yibo,Zhang, Yixuan,&Wen, Lei.(2021).Improvement of electrochemical performance of Mn-Fe based.JOURNAL OF ALLOYS AND COMPOUNDS,878,12.
MLA	Su, Chang,et al."Improvement of electrochemical performance of Mn-Fe based".JOURNAL OF ALLOYS AND COMPOUNDS 878(2021):12.