A Co- and Ni-Free P2/O3 Biphasic Lithium Stabilized Layered Oxide for Sodium-Ion Batteries and its Cycling Behavior

Liangtao Yang; Juan Miguel López del Amo; Zulipiya Shadike; Seong Min Bak; Francisco Bonilla; Montserrat Galceran; Prasant Kumar Nayak; Johannes Rolf Buchheim; Xiao Qing Yang; Teófilo Rojo; Philipp Adelhelm

doi:10.1002/adfm.202003364

A Co- and Ni-Free P2/O3 Biphasic Lithium Stabilized Layered Oxide for Sodium-Ion Batteries and its Cycling Behavior

Liangtao Yang, Juan Miguel López del Amo, Zulipiya Shadike, Seong Min Bak, Francisco Bonilla, Montserrat Galceran, Prasant Kumar Nayak, Johannes Rolf Buchheim, Xiao Qing Yang, Teófilo Rojo, Philipp Adelhelm

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Cobalt- and nickel-free cathode materials are desirable for developing low-cost sodium-ion batteries (SIBs). Compared to the single P-type and O-type structures, biphasic P/O structures become a topic of interest thanks to improved performance. However, the added complexity complicates the understanding of the storage mechanism and the phase behavior is still unclear, especially over consecutive cycling. Here, the properties of biphasic P2(34%)/O3(60%) Na_0.8Li_0.2Fe_0.2Mn_0.6O₂ and its behavior at different states of charge/discharge are reported on. The material is composed of single phase O3 and P2/O3 biphasic particles. Sodium occupies the alkali layers, whereas lithium predominantly (95%) is located in the transition metal layer. An initial reversible capacity of 174 mAh g^-1 is delivered with a retention of 82% dominated by Fe³⁺/Fe⁴⁺ along with contributions from oxygen and partial Mn^3+/4+ redox. Cycling leads to complex phase transitions and ion migration. The biphasic nature is nevertheless preserved, with lithium acting as the structure stabilizer.

Original language	English
Article number	2003364
Journal	Advanced Functional Materials
Volume	30
Issue number	42
DOIs	https://doi.org/10.1002/adfm.202003364
Publication status	Published - 2020 Oct 1

Bibliographical note

Funding Information:
P.A. and T.R. thank for support within the LIBRA project funded over the EIG Concert Japan program financed by BMBF (01DR18003), MINECO (PCI2018‐093068), and JST. L.Y. thanks the China Scholarship Council for funding. The authors acknowledge Ms. S. Stumpf for the SEM images from the SEM facilities of the Jena Center for Soft Matter (JCSM) established with a grant from the German Research Council (DFG) and the European Funds for Regional Development (EFRE). The support by R. Wagner and M. Schürmann for XPS from Chair of material science is also gratefully acknowledged. Z.S., S.‐M.B., and X.‐Q.Y. at Brookhaven National Laboratory were supported by the U.S. Department of Energy, the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies through Advanced Battery Material Research (BMR) program under Contract No. DE‐SC0012704. This research used resources at beamlines 7‐BM (QAS) and 23‐ID‐2 (IOS) of the National Synchrotron Light Source II, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE‐SC0012704.

Publisher Copyright:
© 2020 The Authors. Published by Wiley-VCH GmbH

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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@article{553626d5cf0541949e8791485359abfb,

title = "A Co- and Ni-Free P2/O3 Biphasic Lithium Stabilized Layered Oxide for Sodium-Ion Batteries and its Cycling Behavior",

abstract = "Cobalt- and nickel-free cathode materials are desirable for developing low-cost sodium-ion batteries (SIBs). Compared to the single P-type and O-type structures, biphasic P/O structures become a topic of interest thanks to improved performance. However, the added complexity complicates the understanding of the storage mechanism and the phase behavior is still unclear, especially over consecutive cycling. Here, the properties of biphasic P2(34%)/O3(60%) Na0.8Li0.2Fe0.2Mn0.6O2 and its behavior at different states of charge/discharge are reported on. The material is composed of single phase O3 and P2/O3 biphasic particles. Sodium occupies the alkali layers, whereas lithium predominantly (95%) is located in the transition metal layer. An initial reversible capacity of 174 mAh g-1 is delivered with a retention of 82% dominated by Fe3+/Fe4+ along with contributions from oxygen and partial Mn3+/4+ redox. Cycling leads to complex phase transitions and ion migration. The biphasic nature is nevertheless preserved, with lithium acting as the structure stabilizer.",

author = "Liangtao Yang and {del Amo}, {Juan Miguel L{\'o}pez} and Zulipiya Shadike and Bak, {Seong Min} and Francisco Bonilla and Montserrat Galceran and Nayak, {Prasant Kumar} and Buchheim, {Johannes Rolf} and Yang, {Xiao Qing} and Te{\'o}filo Rojo and Philipp Adelhelm",

note = "Funding Information: P.A. and T.R. thank for support within the LIBRA project funded over the EIG Concert Japan program financed by BMBF (01DR18003), MINECO (PCI2018‐093068), and JST. L.Y. thanks the China Scholarship Council for funding. The authors acknowledge Ms. S. Stumpf for the SEM images from the SEM facilities of the Jena Center for Soft Matter (JCSM) established with a grant from the German Research Council (DFG) and the European Funds for Regional Development (EFRE). The support by R. Wagner and M. Sch{\"u}rmann for XPS from Chair of material science is also gratefully acknowledged. Z.S., S.‐M.B., and X.‐Q.Y. at Brookhaven National Laboratory were supported by the U.S. Department of Energy, the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies through Advanced Battery Material Research (BMR) program under Contract No. DE‐SC0012704. This research used resources at beamlines 7‐BM (QAS) and 23‐ID‐2 (IOS) of the National Synchrotron Light Source II, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE‐SC0012704. Publisher Copyright: {\textcopyright} 2020 The Authors. Published by Wiley-VCH GmbH",

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doi = "10.1002/adfm.202003364",

language = "English",

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AU - Yang, Liangtao

AU - del Amo, Juan Miguel López

AU - Shadike, Zulipiya

AU - Bak, Seong Min

AU - Bonilla, Francisco

AU - Galceran, Montserrat

AU - Nayak, Prasant Kumar

AU - Buchheim, Johannes Rolf

AU - Yang, Xiao Qing

AU - Rojo, Teófilo

AU - Adelhelm, Philipp

N1 - Funding Information: P.A. and T.R. thank for support within the LIBRA project funded over the EIG Concert Japan program financed by BMBF (01DR18003), MINECO (PCI2018‐093068), and JST. L.Y. thanks the China Scholarship Council for funding. The authors acknowledge Ms. S. Stumpf for the SEM images from the SEM facilities of the Jena Center for Soft Matter (JCSM) established with a grant from the German Research Council (DFG) and the European Funds for Regional Development (EFRE). The support by R. Wagner and M. Schürmann for XPS from Chair of material science is also gratefully acknowledged. Z.S., S.‐M.B., and X.‐Q.Y. at Brookhaven National Laboratory were supported by the U.S. Department of Energy, the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies through Advanced Battery Material Research (BMR) program under Contract No. DE‐SC0012704. This research used resources at beamlines 7‐BM (QAS) and 23‐ID‐2 (IOS) of the National Synchrotron Light Source II, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE‐SC0012704. Publisher Copyright: © 2020 The Authors. Published by Wiley-VCH GmbH

PY - 2020/10/1

Y1 - 2020/10/1

N2 - Cobalt- and nickel-free cathode materials are desirable for developing low-cost sodium-ion batteries (SIBs). Compared to the single P-type and O-type structures, biphasic P/O structures become a topic of interest thanks to improved performance. However, the added complexity complicates the understanding of the storage mechanism and the phase behavior is still unclear, especially over consecutive cycling. Here, the properties of biphasic P2(34%)/O3(60%) Na0.8Li0.2Fe0.2Mn0.6O2 and its behavior at different states of charge/discharge are reported on. The material is composed of single phase O3 and P2/O3 biphasic particles. Sodium occupies the alkali layers, whereas lithium predominantly (95%) is located in the transition metal layer. An initial reversible capacity of 174 mAh g-1 is delivered with a retention of 82% dominated by Fe3+/Fe4+ along with contributions from oxygen and partial Mn3+/4+ redox. Cycling leads to complex phase transitions and ion migration. The biphasic nature is nevertheless preserved, with lithium acting as the structure stabilizer.

AB - Cobalt- and nickel-free cathode materials are desirable for developing low-cost sodium-ion batteries (SIBs). Compared to the single P-type and O-type structures, biphasic P/O structures become a topic of interest thanks to improved performance. However, the added complexity complicates the understanding of the storage mechanism and the phase behavior is still unclear, especially over consecutive cycling. Here, the properties of biphasic P2(34%)/O3(60%) Na0.8Li0.2Fe0.2Mn0.6O2 and its behavior at different states of charge/discharge are reported on. The material is composed of single phase O3 and P2/O3 biphasic particles. Sodium occupies the alkali layers, whereas lithium predominantly (95%) is located in the transition metal layer. An initial reversible capacity of 174 mAh g-1 is delivered with a retention of 82% dominated by Fe3+/Fe4+ along with contributions from oxygen and partial Mn3+/4+ redox. Cycling leads to complex phase transitions and ion migration. The biphasic nature is nevertheless preserved, with lithium acting as the structure stabilizer.

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A Co- and Ni-Free P2/O3 Biphasic Lithium Stabilized Layered Oxide for Sodium-Ion Batteries and its Cycling Behavior

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