Improving the stability of P2-type NaMn2/3Ni1/3O2 via phasic intergrowth induced by Li-ion substitution
|Corresponding Author||Chen，Zhenhua; Lu，Zhouguang; Deng，Jianqiu|
Layered transition metal oxides are attractive cathode materials for sodium-ion batteries but are largely hindered by the low capacity and poor cycling stability. Herein, Na is substituted by Li to enhance the capacity and stability of Na(1-x)LixMn(2/3)Ni(1/3)O(2). It is found that Li substitution can provide robust structure benefiting from contracted adjacent transition metal layers owing to strong bonding property of O-Li-O and incremental inactive Mn4+. So it follows that noxious Mn3+ Jahn-Teller distortion and slabs slipping are mitigated. Also, the presence of "Li pillar " disturbs the Na+/vacancies and transition metal ordering during Na extraction, preventing phase transformation during deep desodiation process. Consequently, the Na1-xLixMn2/Ni-3(1)/O-3(2) demonstrates high capacity, remarkable rate capability, and long-term cycling life. Among them, Na0.8Li0.2Mn2/Ni-3(1)/O-3(2) cathode delivers a discharge capacity of 115.3 mA h/g, with a capacity retention of 86.0% after 100 cycles. This simple strategy to stabilize the layered structure oxides is inspiring to design high-performance cathode materials for sodium-ion batteries. (c) 2022 Elsevier Ltd. All rights reserved.
Natural Science Foundation of Guangxi Province[2019GXNSFDA245014] ; National Natural Science Foundation of China ; Basic Research Project of the Science and Technology Innovation Com-mission of Shenzhen[JCYJ 20170817110251498] ; Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials[ZDSYS20200421111401738] ; Guangdong-Hong Kong-Macau Joint Laboratory[2019B121205001]
|WOS Research Area|
Chemistry ; Energy & Fuels ; Materials Science
Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
|WOS Accession No|
|EI Accession Number|
Lithium ; Lithium-ion batteries ; Metal ions ; Sodium-ion batteries ; Stability ; Transition metal oxides ; Transition metals
|ESI Classification Code|
Metallurgy and Metallography:531 ; Metallurgy:531.1 ; Lithium and Alloys:542.4 ; Alkali Metals:549.1 ; Secondary Batteries:702.1.2 ; Electronic Components and Tubes:714
Web of Science
Cited Times [WOS]:1
|Document Type||Journal Article|
|Department||Department of Materials Science and Engineering|
1.School of Materials Science and Engineering & Guangxi Key Laboratory of Information Materials,Guilin University of Electronic Technology,Guilin,Guangxi,541004,China
2.Department of Materials Science and Engineering,Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials,Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China
3.Shanghai Synchrotron Radiation Facility,Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai,201210,China
|Corresponding Author Affilication||Department of Materials Science and Engineering|
Huang，Fengbin,Ge，Yilin,Cheng，Hua,et al. Improving the stability of P2-type NaMn2/3Ni1/3O2 via phasic intergrowth induced by Li-ion substitution[J]. Materials Today Energy,2022,27.
Huang，Fengbin.,Ge，Yilin.,Cheng，Hua.,Wang，Feng.,Yao，Qingrong.,...&Deng，Jianqiu.(2022).Improving the stability of P2-type NaMn2/3Ni1/3O2 via phasic intergrowth induced by Li-ion substitution.Materials Today Energy,27.
Huang，Fengbin,et al."Improving the stability of P2-type NaMn2/3Ni1/3O2 via phasic intergrowth induced by Li-ion substitution".Materials Today Energy 27(2022).
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