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Title: Graphene-modified nanostructured vanadium pentoxide hybrids with extraordinary electrochemical performance for Li-ion batteries

Abstract

The long-standing issues of low intrinsic electronic conductivity, slow lithium-ion diffusion and irreversible phase transitions on deep discharge prevent the high specific capacity/energy (443 mAh g -1 and 1,550 Wh kg -1) vanadium pentoxide from being used as the cathode material in practical battery applications. Here we develop a method to incorporate graphene sheets into vanadium pentoxide nanoribbons via the sol–gel process. The resulting graphene-modified nanostructured vanadium pentoxide hybrids contain only 2 wt. % graphene, yet exhibits extraordinary electrochemical performance: a specific capacity of 438 mAh g -1, approaching the theoretical value (443 mAh g -1), a long cyclability and significantly enhanced rate capability. Such performance is the result of the combined effects of the graphene on structural stability, electronic conduction, vanadium redox reaction and lithium-ion diffusion supported by various experimental studies. Finally, this method provides a new avenue to create nanostructured metal oxide/graphene materials for advanced battery applications.

Authors:
 [1];  [1];  [1];  [2];  [3];  [3];  [4];  [2];  [5];  [6];  [1]
  1. Indiana Univ.-Purdue Univ., Indianapolis, IN (United States). Purdue School of Engineering and Technology, Dept. of Mechanical Engineering
  2. Purdue Univ., West Lafayette, IN (United States). School of Materials Engineering
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS), X-ray Science Division
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Science and Engineering Division
  5. Purdue Univ., West Lafayette, IN (United States). School of Materials Engineering; Purdue Univ., West Lafayette, IN (United States). Weldon School of Biomedical Engineering
  6. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1396038
Grant/Contract Number:  
AC02-06CH11357; AC02-98CH10886
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Liu, Qi, Li, Zhe-Fei, Liu, Yadong, Zhang, Hangyu, Ren, Yang, Sun, Cheng-Jun, Lu, Wenquan, Zhou, Yun, Stanciu, Lia, Stach, Eric A., and Xie, Jian. Graphene-modified nanostructured vanadium pentoxide hybrids with extraordinary electrochemical performance for Li-ion batteries. United States: N. p., 2015. Web. doi:10.1038/ncomms7127.
Liu, Qi, Li, Zhe-Fei, Liu, Yadong, Zhang, Hangyu, Ren, Yang, Sun, Cheng-Jun, Lu, Wenquan, Zhou, Yun, Stanciu, Lia, Stach, Eric A., & Xie, Jian. Graphene-modified nanostructured vanadium pentoxide hybrids with extraordinary electrochemical performance for Li-ion batteries. United States. doi:10.1038/ncomms7127.
Liu, Qi, Li, Zhe-Fei, Liu, Yadong, Zhang, Hangyu, Ren, Yang, Sun, Cheng-Jun, Lu, Wenquan, Zhou, Yun, Stanciu, Lia, Stach, Eric A., and Xie, Jian. Tue . "Graphene-modified nanostructured vanadium pentoxide hybrids with extraordinary electrochemical performance for Li-ion batteries". United States. doi:10.1038/ncomms7127. https://www.osti.gov/servlets/purl/1396038.
@article{osti_1396038,
title = {Graphene-modified nanostructured vanadium pentoxide hybrids with extraordinary electrochemical performance for Li-ion batteries},
author = {Liu, Qi and Li, Zhe-Fei and Liu, Yadong and Zhang, Hangyu and Ren, Yang and Sun, Cheng-Jun and Lu, Wenquan and Zhou, Yun and Stanciu, Lia and Stach, Eric A. and Xie, Jian},
abstractNote = {The long-standing issues of low intrinsic electronic conductivity, slow lithium-ion diffusion and irreversible phase transitions on deep discharge prevent the high specific capacity/energy (443 mAh g-1 and 1,550 Wh kg-1) vanadium pentoxide from being used as the cathode material in practical battery applications. Here we develop a method to incorporate graphene sheets into vanadium pentoxide nanoribbons via the sol–gel process. The resulting graphene-modified nanostructured vanadium pentoxide hybrids contain only 2 wt. % graphene, yet exhibits extraordinary electrochemical performance: a specific capacity of 438 mAh g-1, approaching the theoretical value (443 mAh g-1), a long cyclability and significantly enhanced rate capability. Such performance is the result of the combined effects of the graphene on structural stability, electronic conduction, vanadium redox reaction and lithium-ion diffusion supported by various experimental studies. Finally, this method provides a new avenue to create nanostructured metal oxide/graphene materials for advanced battery applications.},
doi = {10.1038/ncomms7127},
journal = {Nature Communications},
number = ,
volume = 6,
place = {United States},
year = {Tue Jan 20 00:00:00 EST 2015},
month = {Tue Jan 20 00:00:00 EST 2015}
}

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Works referenced in this record:

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