能源化学(英文版) ›› 2020, Vol. 44 ›› Issue (5): 61-67.DOI: 10.1016/j.jechem.2019.09.004

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Biomass-derived nitrogen-doped hierarchical porous carbon as efficient sulfur host for lithium-sulfur batteries

Qinghuiqiang Xiaoa, Gaoran Lib, Minjie Lia, Ruiping Liua, Haibo Lic, Pengfei Rena, Yue Donga, Ming Fengc, Zhongwei Chenb   

  1. a Department of Materials Science and Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China;
    b Department of Chemical Engineering, University of Waterloo, Waterloo N2L3G1, Ontario, Canada;
    c Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, Jilin, China
  • 收稿日期:2019-07-24 修回日期:2019-07-24 出版日期:2020-05-15 发布日期:2020-12-18
  • 基金资助:
    This work is financially supported by the Natural Science Foundation of Beijing (No. L182062), the Beijing Nova program (Z171100001117077), the Yue Qi Young Scholar Project of China University of Mining & Technology (Beijing) (No. 2017QN17), the Fundamental Research Funds for the Central Universities (No.2014QJ02), the program for the Development of Science and Technology of Jilin Province (Nos. 20190201309JC and 20190101009JH) and the Project of Development and Reform Commission of Jilin Province (No. 2019C042-1). The authors also acknowledge the support from Natural Sciences and Engineering Research Council of Canada (NSERC) and the University of Waterloo.

Biomass-derived nitrogen-doped hierarchical porous carbon as efficient sulfur host for lithium-sulfur batteries

Qinghuiqiang Xiaoa, Gaoran Lib, Minjie Lia, Ruiping Liua, Haibo Lic, Pengfei Rena, Yue Donga, Ming Fengc, Zhongwei Chenb   

  1. a Department of Materials Science and Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China;
    b Department of Chemical Engineering, University of Waterloo, Waterloo N2L3G1, Ontario, Canada;
    c Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, Jilin, China
  • Received:2019-07-24 Revised:2019-07-24 Online:2020-05-15 Published:2020-12-18
  • Contact: Ruiping Liu, Ming Feng, Zhongwei Chen
  • Supported by:
    This work is financially supported by the Natural Science Foundation of Beijing (No. L182062), the Beijing Nova program (Z171100001117077), the Yue Qi Young Scholar Project of China University of Mining & Technology (Beijing) (No. 2017QN17), the Fundamental Research Funds for the Central Universities (No.2014QJ02), the program for the Development of Science and Technology of Jilin Province (Nos. 20190201309JC and 20190101009JH) and the Project of Development and Reform Commission of Jilin Province (No. 2019C042-1). The authors also acknowledge the support from Natural Sciences and Engineering Research Council of Canada (NSERC) and the University of Waterloo.

摘要: Lithium-sulfur (Li-S) battery is a potential energy storage technology with high energy density and low cost. However, the gap between theoretical expectation and practical performance limits its wide implementation. Herein, we report a nitrogen-doped porous carbon derived from biomass pomelo peel as sulfur host material for Li-S batteries. The hierarchical porous architecture and the polar surface introduced by N-doping render a favorable combination of physical and chemical sulfur confinements as well as an expedite electron/ion transfer, thus contributing to a facilitated and stabilized sulfur electrochemistry. As a result, the corresponding sulfur composite electrodes exhibit an ultrahigh initial capacity of 1534.6 mAh g-1, high coulombic efficiency over 98% upon 300 cycles, and decent rate capability up to 2 C. This work provides an economical and effective strategy for the fabrication of advanced carbonaceous sulfur host material as well as the significant improvement of Li-S battery performance.

关键词: Biomass-derived material, Porous carbon, Lithium sulfur batteries, Electrochemical performance

Abstract: Lithium-sulfur (Li-S) battery is a potential energy storage technology with high energy density and low cost. However, the gap between theoretical expectation and practical performance limits its wide implementation. Herein, we report a nitrogen-doped porous carbon derived from biomass pomelo peel as sulfur host material for Li-S batteries. The hierarchical porous architecture and the polar surface introduced by N-doping render a favorable combination of physical and chemical sulfur confinements as well as an expedite electron/ion transfer, thus contributing to a facilitated and stabilized sulfur electrochemistry. As a result, the corresponding sulfur composite electrodes exhibit an ultrahigh initial capacity of 1534.6 mAh g-1, high coulombic efficiency over 98% upon 300 cycles, and decent rate capability up to 2 C. This work provides an economical and effective strategy for the fabrication of advanced carbonaceous sulfur host material as well as the significant improvement of Li-S battery performance.

Key words: Biomass-derived material, Porous carbon, Lithium sulfur batteries, Electrochemical performance