Investigating Li2NiO2–Li 2CuO2 Solid Solutions as High-Capacity Cathode Materials for Li-Ion Batteries

doi:10.1021/acs.jpcc.7b01799

Title: Investigating Li ₂NiO ₂–Li ₂CuO ₂ Solid Solutions as High-Capacity Cathode Materials for Li-Ion Batteries

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Li ₂Ni _1–xCu _xO ₂ solid solutions were prepared by a solid-state method to study the correlation between composition and electrochemical performance. Cu incorporation improved the phase purity of Li ₂Ni _1–xCu _xO ₂ with orthorhombic Immm structure, resulting in enhanced capacity. However, the electrochemical profiles suggested Cu incorporation did not prevent irreversible phase transformation during the electrochemical process, instead, it likely influenced the phase transformation upon lithium removal. By combining ex situ X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS), and differential electrochemical mass spectrometry (DEMS) measurements, this study elucidates the relevant phase transformation (e.g., crystal structure, local environment, and charge compensation) and participation of electrons from lattice oxygen during the first cycle in these complex oxides.

Authors:

Xu, Jing ^[1] ; Renfrew, Sara ^[2] ; Marcus, Matthew A. ^[1] ; Sun, Meiling ^[1] ; ;

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Univ. of California, Berkeley, CA (United States)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)

Publication Date:: 2017-05-11

Grant/Contract Number:: AC02-05CH11231

Type:: Accepted Manuscript

Journal Name:: Journal of Physical Chemistry. C

Additional Journal Information:: Journal Volume: 121; Journal Issue: 21; Journal ID: ISSN 1932-7447

Publisher:: American Chemical Society

Research Org:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

OSTI Identifier:: 1379866


                    Xu, Jing, Renfrew, Sara, Marcus, Matthew A., Sun, Meiling, McCloskey, Bryan D., and Tong, Wei. Investigating Li2NiO2–Li 2CuO2 Solid Solutions as High-Capacity Cathode Materials for Li-Ion Batteries.  United States: N. p.,  
        Web.  doi:10.1021/acs.jpcc.7b01799.

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                    Xu, Jing, Renfrew, Sara, Marcus, Matthew A., Sun, Meiling, McCloskey, Bryan D., & Tong, Wei. Investigating Li2NiO2–Li 2CuO2 Solid Solutions as High-Capacity Cathode Materials for Li-Ion Batteries.  United States.  doi:10.1021/acs.jpcc.7b01799.

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                    Xu, Jing, Renfrew, Sara, Marcus, Matthew A., Sun, Meiling, McCloskey, Bryan D., and Tong, Wei. 2017.  
        "Investigating Li2NiO2–Li 2CuO2 Solid Solutions as High-Capacity Cathode Materials for Li-Ion Batteries".  United States.  
        doi:10.1021/acs.jpcc.7b01799.  https://www.osti.gov/servlets/purl/1379866.

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@article{osti_1379866,

  title        = {Investigating Li2NiO2–Li 2CuO2 Solid Solutions as High-Capacity Cathode Materials for Li-Ion Batteries},

  author       = {Xu, Jing and Renfrew, Sara and Marcus, Matthew A. and Sun, Meiling and McCloskey, Bryan D. and Tong, Wei},

  abstractNote = {Li2Ni1–xCuxO2 solid solutions were prepared by a solid-state method to study the correlation between composition and electrochemical performance. Cu incorporation improved the phase purity of Li2Ni1–xCuxO2 with orthorhombic Immm structure, resulting in enhanced capacity. However, the electrochemical profiles suggested Cu incorporation did not prevent irreversible phase transformation during the electrochemical process, instead, it likely influenced the phase transformation upon lithium removal. By combining ex situ X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS), and differential electrochemical mass spectrometry (DEMS) measurements, this study elucidates the relevant phase transformation (e.g., crystal structure, local environment, and charge compensation) and participation of electrons from lattice oxygen during the first cycle in these complex oxides.},

  doi          = {10.1021/acs.jpcc.7b01799},

  journal      = {Journal of Physical Chemistry. C},

  number       = 21,

  volume       = 121,

  place        = {United States},

  year         = {2017},

  month        = {5}

}

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Publisher's Version of Record
10.1021/acs.jpcc.7b01799
https://doi.org/10.1021/acs.jpcc.7b01799

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Title: Investigating Li 2NiO 2–Li 2CuO 2 Solid Solutions as High-Capacity Cathode Materials for Li-Ion Batteries

Access journal articles and accepted manuscripts
resulting from DOE research funding

Title: Investigating Li ₂NiO ₂–Li ₂CuO ₂ Solid Solutions as High-Capacity Cathode Materials for Li-Ion Batteries