Improvement of electrochemical performance of Mn-Fe based
Su, Chang1; Liu, Guoqiang1,2; Gao, Yibo1; Zhang, Yixuan1; Wen, Lei3
Corresponding AuthorLiu, Guoqiang( ; Wen, Lei(
AbstractThis 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.
KeywordSodium ion batteries Cathode materials Mn-Fe based layered oxide Mg doping Electrochemical properties
Funding OrganizationNational Natural Science Foundation of China
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[51574081]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000660477400006
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Document Type期刊论文
Corresponding AuthorLiu, Guoqiang; Wen, Lei
Affiliation1.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
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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.
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