Tunnel-structured Na0.66[Mn0.66Ti0.34]O2-xFx(x <0.1) cathode for high performance sodium-ion batteries

Wang, Qin-Chao; Qiu, Qi-Qi; Xiao, Na; Fu, Zheng-Wen; Wu, Xiao-Jing; Yang, Xiao-Qing; Zhou, Yong-Ning

doi:10.1016/j.ensm.2018.03.007

Title: Tunnel-structured Na_0.66[Mn_0.66Ti_0.34]O_2-xF_x(x <0.1) cathode for high performance sodium-ion batteries

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Abstract

Sodium-ion batteries (SIBs) are attracting significant research attentions for large-scale energy storage applications. Cathode material is the vital part of SIBs to determine the capacity and cycle performance. Here, a series of F-doped Na_0.66[Mn_0.66Ti_0.34]O_2-xF_x (x < 0.1) cathodes with tunnel structure are designed and synthesized aiming to enlarge the sodium diffusion paths. The lattice parameters of unit cell are tuned successfully by adjusting F doping amount. Na_0.66[Mn_0.66Ti_0.34]O_1.94F_0.06 with the optimized stoichiometry exhibits a reversible capacity of 97 mAh g^-1 and promising cycle performance (85 mAh g^-1 is maintained at 2C after 1000 cycles) with extremely low voltage polarization. More significantly, Na_0.66[Mn_0.66Ti_0.34]O_1.94F_0.06 exhibits superior low temperature performance, owing to the much enhanced thermodynamics and kinetics benefited from F doping. In conclusion, this strategy may open new opportunities to design advanced intercalation-type cathode materials for sodium ion batteries, especially for low-temperature applications.

Authors:

Wang, Qin-Chao ^[1]; Qiu, Qi-Qi ^[1]; Xiao, Na ^[1]; Fu, Zheng-Wen ^[2]; Wu, Xiao-Jing ^[1]; Yang, Xiao-Qing ^[3]; Zhou, Yong-Ning ^[1]

Fudan Univ., Shanghai (China). Dept. of Materials Science
Fudan Univ., Shanghai (China). Shanghai Key Lab. of Molecular Catalysts and Innovative Materials, Dept. of Chemistry
Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Division

Publication Date:: Tue Mar 13 00:00:00 EDT 2018

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

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

OSTI Identifier:: 1434003

Report Number(s):: BNL-203519-2018-JAAM
Journal ID: ISSN 2405-8297

Grant/Contract Number:: SC0012704; AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Energy Storage Materials

Additional Journal Information:: Journal Volume: 15; Journal Issue: C; Journal ID: ISSN 2405-8297

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE; Sodium batteries; Cathode materials; Tunnel structure; Anion doping; X-ray Absorption spectroscopy

Citation Formats


                    Wang, Qin-Chao, Qiu, Qi-Qi, Xiao, Na, Fu, Zheng-Wen, Wu, Xiao-Jing, Yang, Xiao-Qing, and Zhou, Yong-Ning. Tunnel-structured Na0.66[Mn0.66Ti0.34]O2-xFx(x <0.1) cathode for high performance sodium-ion batteries.  United States: N. p., 2018. 
Web.  doi:10.1016/j.ensm.2018.03.007.

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                    Wang, Qin-Chao, Qiu, Qi-Qi, Xiao, Na, Fu, Zheng-Wen, Wu, Xiao-Jing, Yang, Xiao-Qing, & Zhou, Yong-Ning. Tunnel-structured Na0.66[Mn0.66Ti0.34]O2-xFx(x <0.1) cathode for high performance sodium-ion batteries.  United States.  https://doi.org/10.1016/j.ensm.2018.03.007

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                    Wang, Qin-Chao, Qiu, Qi-Qi, Xiao, Na, Fu, Zheng-Wen, Wu, Xiao-Jing, Yang, Xiao-Qing, and Zhou, Yong-Ning. Tue .  
"Tunnel-structured Na0.66[Mn0.66Ti0.34]O2-xFx(x <0.1) cathode for high performance sodium-ion batteries".  United States.  https://doi.org/10.1016/j.ensm.2018.03.007.  https://www.osti.gov/servlets/purl/1434003.

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@article{osti_1434003,

  title        = {Tunnel-structured Na0.66[Mn0.66Ti0.34]O2-xFx(x <0.1) cathode for high performance sodium-ion batteries},

  author       = {Wang, Qin-Chao and Qiu, Qi-Qi and Xiao, Na and Fu, Zheng-Wen and Wu, Xiao-Jing and Yang, Xiao-Qing and Zhou, Yong-Ning},

  abstractNote = {Sodium-ion batteries (SIBs) are attracting significant research attentions for large-scale energy storage applications. Cathode material is the vital part of SIBs to determine the capacity and cycle performance. Here, a series of F-doped Na0.66[Mn0.66Ti0.34]O2-xFx (x < 0.1) cathodes with tunnel structure are designed and synthesized aiming to enlarge the sodium diffusion paths. The lattice parameters of unit cell are tuned successfully by adjusting F doping amount. Na0.66[Mn0.66Ti0.34]O1.94F0.06 with the optimized stoichiometry exhibits a reversible capacity of 97 mAh g-1 and promising cycle performance (85 mAh g-1 is maintained at 2C after 1000 cycles) with extremely low voltage polarization. More significantly, Na0.66[Mn0.66Ti0.34]O1.94F0.06 exhibits superior low temperature performance, owing to the much enhanced thermodynamics and kinetics benefited from F doping. In conclusion, this strategy may open new opportunities to design advanced intercalation-type cathode materials for sodium ion batteries, especially for low-temperature applications.},

  doi          = {10.1016/j.ensm.2018.03.007},

  journal      = {Energy Storage Materials},

  number       = C,

  volume       = 15,

  place        = {United States},

  year         = {Tue Mar 13 00:00:00 EDT 2018},

  month        = {Tue Mar 13 00:00:00 EDT 2018}

}

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Title: Tunnel-structured Na0.66[Mn0.66Ti0.34]O2-xFx(x <0.1) cathode for high performance sodium-ion batteries

Abstract

Citation Formats

Title: Tunnel-structured Na_0.66[Mn_0.66Ti_0.34]O_2-xF_x(x <0.1) cathode for high performance sodium-ion batteries