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Rational selection of amorphous or crystalline V2O5 cathode for sodium-ion batteries.
Phys Chem Chem Phys. 2016 Sep 14; 18(36):25645-25654.PC

Abstract

Vanadium oxide (V2O5), as a potential positive electrode for sodium ion batteries (SIBs), has attracted considerable attention from researchers. Herein, amorphous and crystalline V2O5 cathodes on a graphite paper without a binder and conductive additives have been synthesized via facile anodic electrochemical deposition following different heat treatments. Both the amorphous V2O5 (a-V2O5) cathode and crystalline V2O5 (c-V2O5) cathode show good rate cycling performance and long cycling life. After five rate cycles, the reversible capacities of both the cathodes were almost unchanged at different current densities from 40 to 5120 mA g-1. Long cycling tests with 10 000 cycles were carried out and the two cathodes exhibit excellent cycling stability. The c-V2O5 cathode retains a high specific capacity of 54 mA h g-1 after 10 000 cycles at 2560 mA g-1 and can be charged within 80 s. Interestingly, the a-V2O5 cathode possesses higher reversible capacities than the c-V2O5 cathode at low current densities, whereas it is inversed at high current densities. The c-V2O5 cathode shows faster capacity recovery from 5120 to 40 mA g-1 than the a-V2O5 cathode. When discharged at 80 mA g-1 (long discharge time of 140 min) and charged at 640 mA g-1 (short charge time of 17 min), the a-V2O5 cathode shows a higher discharge capacity than its c-V2O5 counterpart. The different electrochemical performance of a-V2O5 and c-V2O5 cathodes during various electrochemical processes can provide a rational selection of amorphous or crystalline V2O5 cathode materials for SIBs in their practical applications to meet the variable requirements.

Authors+Show Affiliations

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China. jpzhao@hit.edu.cn liu88062321@163.com.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, PR China. yaoli@hit.edu.cn.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China. jpzhao@hit.edu.cn liu88062321@163.com.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China. jpzhao@hit.edu.cn liu88062321@163.com.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China. jpzhao@hit.edu.cn liu88062321@163.com.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China. jpzhao@hit.edu.cn liu88062321@163.com.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China. jpzhao@hit.edu.cn liu88062321@163.com.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China. jpzhao@hit.edu.cn liu88062321@163.com.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, PR China. jpzhao@hit.edu.cn liu88062321@163.com and Heilongjiang University of Science and Technology, Harbin 150022, PR China.Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, PR China. yaoli@hit.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27711585

Citation

Liu, Shikun, et al. "Rational Selection of Amorphous or Crystalline V2O5 Cathode for Sodium-ion Batteries." Physical Chemistry Chemical Physics : PCCP, vol. 18, no. 36, 2016, pp. 25645-25654.
Liu S, Tong Z, Zhao J, et al. Rational selection of amorphous or crystalline V2O5 cathode for sodium-ion batteries. Phys Chem Chem Phys. 2016;18(36):25645-25654.
Liu, S., Tong, Z., Zhao, J., Liu, X., Wang, J., Ma, X., Chi, C., Yang, Y., Liu, X., & Li, Y. (2016). Rational selection of amorphous or crystalline V2O5 cathode for sodium-ion batteries. Physical Chemistry Chemical Physics : PCCP, 18(36), 25645-25654.
Liu S, et al. Rational Selection of Amorphous or Crystalline V2O5 Cathode for Sodium-ion Batteries. Phys Chem Chem Phys. 2016 Sep 14;18(36):25645-25654. PubMed PMID: 27711585.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rational selection of amorphous or crystalline V2O5 cathode for sodium-ion batteries. AU - Liu,Shikun, AU - Tong,Zhongqiu, AU - Zhao,Jiupeng, AU - Liu,Xusong, AU - Wang,Jing, AU - Ma,Xiaoxuan, AU - Chi,Caixia, AU - Yang,Yu, AU - Liu,Xiaoxu, AU - Li,Yao, PY - 2016/10/7/entrez PY - 2016/10/7/pubmed PY - 2016/10/7/medline SP - 25645 EP - 25654 JF - Physical chemistry chemical physics : PCCP JO - Phys Chem Chem Phys VL - 18 IS - 36 N2 - Vanadium oxide (V2O5), as a potential positive electrode for sodium ion batteries (SIBs), has attracted considerable attention from researchers. Herein, amorphous and crystalline V2O5 cathodes on a graphite paper without a binder and conductive additives have been synthesized via facile anodic electrochemical deposition following different heat treatments. Both the amorphous V2O5 (a-V2O5) cathode and crystalline V2O5 (c-V2O5) cathode show good rate cycling performance and long cycling life. After five rate cycles, the reversible capacities of both the cathodes were almost unchanged at different current densities from 40 to 5120 mA g-1. Long cycling tests with 10 000 cycles were carried out and the two cathodes exhibit excellent cycling stability. The c-V2O5 cathode retains a high specific capacity of 54 mA h g-1 after 10 000 cycles at 2560 mA g-1 and can be charged within 80 s. Interestingly, the a-V2O5 cathode possesses higher reversible capacities than the c-V2O5 cathode at low current densities, whereas it is inversed at high current densities. The c-V2O5 cathode shows faster capacity recovery from 5120 to 40 mA g-1 than the a-V2O5 cathode. When discharged at 80 mA g-1 (long discharge time of 140 min) and charged at 640 mA g-1 (short charge time of 17 min), the a-V2O5 cathode shows a higher discharge capacity than its c-V2O5 counterpart. The different electrochemical performance of a-V2O5 and c-V2O5 cathodes during various electrochemical processes can provide a rational selection of amorphous or crystalline V2O5 cathode materials for SIBs in their practical applications to meet the variable requirements. SN - 1463-9084 UR - https://www.unboundmedicine.com/medline/citation/27711585/Rational_selection_of_amorphous_or_crystalline_V2O5_cathode_for_sodium_ion_batteries_ L2 - https://doi.org/10.1039/c6cp04064k DB - PRIME DP - Unbound Medicine ER -
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