In Operando XANES Imaging of High Capacity Intermetallic Anodes for Lithium Ion Batteries

Gonzalez Malabet, Hernando J.; Juarez Robles, Daniel; de Andrade, Vincent; Mukherjee, Partha P.; Nelson, George J.

doi:10.1149/1945-7111/ab78fb

Title: In Operando XANES Imaging of High Capacity Intermetallic Anodes for Lithium Ion Batteries

Abstract

In operando 2D X-ray absorption near edge structure (XANES) imaging was performed near the Cu K-edge during cycling of Cu₆Sn₅ composite anodes for lithium ion batteries. Galvanostatic lithiation and delithiation with intermittent constant voltage holds near reaction plateaus show evolution of absorption spectra for active material particles. XANES spectra obtained from images taken during cycling were compared to standard spectra for Cu, Cu₆Sn₅, and Li₂CuSn. Chemical composition was assessed for Cu-containing phases. Distinct Cu, Cu₆Sn₅, and Li₂CuSn regions were identified for each voltage plateau. Mechanical degradation, electrode particle fracture and expansion were observed during delithiation. Furthermore, movement of particles during cycling suggests that expansion also impacts the supporting secondary phases and the transport networks therein. These results demonstrate that spectroscopic X-ray imaging methods can clearly distinguish chemically distinct phases in alloy electrodes and have the versatility to observe the evolution of these phases during lithiation and delithiation.

Authors:

Gonzalez Malabet, Hernando J. ^[1]; Juarez Robles, Daniel ^[2]; de Andrade, Vincent ^[3];

^[2];

^[1]

Univ. of Alabama, Huntsville, AL (United States)
Purdue Univ., West Lafayette, IN (United States)
Argonne National Lab. (ANL), Lemont, IL (United States). Advanced Photon Source (APS)

Publication Date:: Wed Mar 04 00:00:00 EST 2020

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC); National Science Foundation (NSF)

OSTI Identifier:: 1658615

Grant/Contract Number:: AC02-06CH11357; CBET-1438683; CBET-1438431/1759651; CBET-1454437

Resource Type:: Accepted Manuscript

Journal Name:: Journal of the Electrochemical Society (Online)

Additional Journal Information:: Journal Name: Journal of the Electrochemical Society (Online); Journal Volume: 167; Journal Issue: 4; Journal ID: ISSN 1945-7111

Publisher:: IOP Publishing

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE; High capacity electrodes; In operando X-ray imaging; Lithium ion batteries; Tin alloys; X-ray absorption near edge structure

Citation Formats


                    Gonzalez Malabet, Hernando J., Juarez Robles, Daniel, de Andrade, Vincent, Mukherjee, Partha P., and Nelson, George J. In Operando XANES Imaging of High Capacity Intermetallic Anodes for Lithium Ion Batteries.  United States: N. p., 2020. 
Web.  doi:10.1149/1945-7111/ab78fb.

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                    Gonzalez Malabet, Hernando J., Juarez Robles, Daniel, de Andrade, Vincent, Mukherjee, Partha P., & Nelson, George J. In Operando XANES Imaging of High Capacity Intermetallic Anodes for Lithium Ion Batteries.  United States.  https://doi.org/10.1149/1945-7111/ab78fb

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                    Gonzalez Malabet, Hernando J., Juarez Robles, Daniel, de Andrade, Vincent, Mukherjee, Partha P., and Nelson, George J. Wed .  
"In Operando XANES Imaging of High Capacity Intermetallic Anodes for Lithium Ion Batteries".  United States.  https://doi.org/10.1149/1945-7111/ab78fb.  https://www.osti.gov/servlets/purl/1658615.

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@article{osti_1658615,

  title        = {In Operando XANES Imaging of High Capacity Intermetallic Anodes for Lithium Ion Batteries},

  author       = {Gonzalez Malabet, Hernando J. and Juarez Robles, Daniel and de Andrade, Vincent and Mukherjee, Partha P. and Nelson, George J.},

  abstractNote = {In operando 2D X-ray absorption near edge structure (XANES) imaging was performed near the Cu K-edge during cycling of Cu6Sn5 composite anodes for lithium ion batteries. Galvanostatic lithiation and delithiation with intermittent constant voltage holds near reaction plateaus show evolution of absorption spectra for active material particles. XANES spectra obtained from images taken during cycling were compared to standard spectra for Cu, Cu6Sn5, and Li2CuSn. Chemical composition was assessed for Cu-containing phases. Distinct Cu, Cu6Sn5, and Li2CuSn regions were identified for each voltage plateau. Mechanical degradation, electrode particle fracture and expansion were observed during delithiation. Furthermore, movement of particles during cycling suggests that expansion also impacts the supporting secondary phases and the transport networks therein. These results demonstrate that spectroscopic X-ray imaging methods can clearly distinguish chemically distinct phases in alloy electrodes and have the versatility to observe the evolution of these phases during lithiation and delithiation.},

  doi          = {10.1149/1945-7111/ab78fb},

  journal      = {Journal of the Electrochemical Society (Online)},

  number       = 4,

  volume       = 167,

  place        = {United States},

  year         = {Wed Mar 04 00:00:00 EST 2020},

  month        = {Wed Mar 04 00:00:00 EST 2020}

}

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Title: In Operando XANES Imaging of High Capacity Intermetallic Anodes for Lithium Ion Batteries

Abstract

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