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Zero Lithium Miscibility Gap Enables High-Rate Equimolar Li(Mn,Fe)PO4 Solid Solution
Yang, Jinxing1,2; Li, Changji1; Guang, Tianjia1,2; Zhang, Hui3; Li, Zhaojin4; Fan, Bingbing5; Ma, Yonghui6; Zhu, Kongjun7; Wang, Xiaohui1
Corresponding AuthorWang, Xiaohui(wang@imr.ac.cn)
2021-06-23
Source PublicationNANO LETTERS
ISSN1530-6984
Volume21Issue:12Pages:5091-5097
AbstractForming olivine-structured Li(Mn,Fe)PO4 solid solution is theoretically a feasible way to improve the energy density of the solid solutions for lithium ion batteries. However, the Jahn-Teller active Mn3+ in the solid solution restricts their energy density and rate performance. Here, as demonstrated by operando X-ray diffraction, we show that equimolar LiMn0.5Fe0.5PO4 solid solution nanocrystals undergo a single-phase transition during the whole (de)lithiation process, with a feature of zero lithium miscibility gap, which endows the nanocrystals with excellent electrochemical properties. Specifically, the energy density of LiMn0.5Fe0.5PO4 reaches 625 Wh kg(-1), which is 16% higher than that of LiFePO4. Moreover, the high-performance LiMn0.5Fe0.5PO4 nanocrystals are prepared by a microwave-assisted hydrothermal synthesis in pure water.
KeywordLiMnxFe1-xPO4 nanocrystals Cathode materials Hydrothermal synthesis Operando XRD Full cell
Funding OrganizationShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
DOI10.1021/acs.nanolett.1c00957
Indexed BySCI
Languageen
Funding ProjectShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000668003400026
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159881
Collection中国科学院金属研究所
Corresponding AuthorWang, Xiaohui
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Lawrence Berkeley Natl Lab, Energy Geosci Div, Berkeley, CA 94720 USA
4.Hebei Univ Sci & Technol, Hebei Key Lab Flexible Funct Mat, Sch Mat Sci & Engn, Shijiazhuang 050000, Hebei, Peoples R China
5.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
6.Chinese Acad Sci, Struct Anal Div, Inst Met Res, Testing Ctr, Shenyang 110016, Peoples R China
7.Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Peoples R China
Recommended Citation
GB/T 7714
Yang, Jinxing,Li, Changji,Guang, Tianjia,et al. Zero Lithium Miscibility Gap Enables High-Rate Equimolar Li(Mn,Fe)PO4 Solid Solution[J]. NANO LETTERS,2021,21(12):5091-5097.
APA Yang, Jinxing.,Li, Changji.,Guang, Tianjia.,Zhang, Hui.,Li, Zhaojin.,...&Wang, Xiaohui.(2021).Zero Lithium Miscibility Gap Enables High-Rate Equimolar Li(Mn,Fe)PO4 Solid Solution.NANO LETTERS,21(12),5091-5097.
MLA Yang, Jinxing,et al."Zero Lithium Miscibility Gap Enables High-Rate Equimolar Li(Mn,Fe)PO4 Solid Solution".NANO LETTERS 21.12(2021):5091-5097.
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