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Improvement of Coulombic Efficiency and Sodium Storage Performance of SnO2/Reduced Graphene Oxide Anode Materials by Pitch Pyrocarbon Filling
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Wei DONG1, 2, Bing LIANG2, Ding SHEN1, Shaobin YANG1, Shibo FU1, Wenbo WANG1
Journal of the Chinese Ceramic Society | 2020, 48(4) : 543 - 550
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Journal of the Chinese Ceramic Society | 2020, 48(4): 543-550
Improvement of Coulombic Efficiency and Sodium Storage Performance of SnO2/Reduced Graphene Oxide Anode Materials by Pitch Pyrocarbon Filling
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Wei DONG1, 2, Bing LIANG2, Ding SHEN1, Shaobin YANG1, Shibo FU1, Wenbo WANG1
Affiliations
  • 1.College of Material Science and Engineering, Liaoning Technical University, Fuxin 123000, Liaoning, China
  • 2.School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, Liaoning, China

    • DONG Wei (1986-), male, Ph.D., Lecturer. E-mail:

About Author:

DONG Wei (1986-), male, Ph.D., Lecturer. E-mail:

Published: 2020-04-20 doi: 10.14062/j.issn.0454-5648.20190655
Outline
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Tin dioxide is a promising sodium storage material due to its great theoretical capacity of sodium storage. Graphene has good mechanical properties and electrical conductivity as an ideal conductive additive. However, SnO2/reduced graphene oxide (RGO) composite has a large specific surface area and its initial Coulombic efficiency is low, thus affecting the application. In this paper, SnO2/RGO composites were synthesized by a hydrothermal method, and C/SnO2/RGO composites were alos prepared via filling the pitch pyrocarbon. The results show that SnO2 in C/SnO2/RGO composite is uniformly distributed in RGO with the size of 6 nm. The initial Coulomic efficiency of C/SnO2/RGO nanocomposite with pitch pyrocarbon filling is improved, which is nearly 25% greater than that of SnO2/RGO composite. The specific capacities of SnO2/RGO and C/SnO2/RGO composites are 442.1 and 479.8 mA·h/g, respectively, after 100 cycles. The addition of pitch pyrocarbon results in an increase in cycle stability, and the material impedance is improved, thus increasing the electrons and ionic conductivity among SnO2 particles, RGO and pitch pyrocarbon.

sodium-ion battery  /  graphene  /  tin dioxide  /  anode material
董伟, 梁冰, 沈丁, 杨绍斌, 富世博, 王文博. 沥青炭填充提高SnO2/还原氧化石墨烯负极材料Coulomb效率及储钠性能. 硅酸盐学报, 2020 , 48 (4) : 543 -550 . DOI: 10.14062/j.issn.0454-5648.20190655
Wei DONG, Bing LIANG, Ding SHEN, Shaobin YANG, Shibo FU, Wenbo WANG. Improvement of Coulombic Efficiency and Sodium Storage Performance of SnO2/Reduced Graphene Oxide Anode Materials by Pitch Pyrocarbon Filling[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (4) : 543 -550 . DOI: 10.14062/j.issn.0454-5648.20190655
Appendix
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Year 2020 volume 48 Issue 4
33
7
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Article Info
doi: 10.14062/j.issn.0454-5648.20190655
  • Receive Date：2019-09-26
  • Online Date：2026-10-29
  • Published：2020-04-20
Article Data
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History
  • Received：2019-09-26
  • Revised：2019-11-18
Funding
Affiliations
    1.College of Material Science and Engineering, Liaoning Technical University, Fuxin 123000, Liaoning, China
    2.School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, Liaoning, China

Corresponding:

YANG Shaobin (1963-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
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Percentage of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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