Zero Lithium Miscibility Gap Enables High-Rate Equimolar Li(Mn,Fe)PO4 Solid Solution

doi:10.1021/acs.nanolett.1c00957

IMR OpenIR

	Zero Lithium Miscibility Gap Enables High-Rate Equimolar Li(Mn,Fe)PO4 Solid Solution
	Yang, Jinxing 1,2; Li, Changji 1; Guang, Tianjia 1,2; Zhang, Hui 3; Li, Zhaojin 4; Fan, Bingbing 5; Ma, Yonghui 6; Zhu, Kongjun 7; Wang, Xiaohui 1
通讯作者	Wang, Xiaohui(wang@imr.ac.cn)
	2021-06-23
发表期刊	NANO LETTERS
ISSN	1530-6984
卷号	21 期号:12 页码:5091-5097
摘要	Forming 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.
关键词	LiMnxFe1-xPO4 nanocrystals Cathode materials Hydrothermal synthesis Operando XRD Full cell
资助者	Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
DOI	10.1021/acs.nanolett.1c00957
收录类别	SCI
语种	英语
资助项目	Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000668003400026
出版者	AMER CHEMICAL SOC
引用统计	被引频次：7[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/321006/159881
专题	中国科学院金属研究所
通讯作者	Wang, Xiaohui
作者单位	1.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
推荐引用方式 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.