, Volume 25, Issue 6, pp 2769–2779 | Cite as

Hydrothermal synthesis of Fe-based negative materials for asymmetric supercapacitors with enhanced performance

  • Cheng Shen
  • Rongzhen Li
  • Lijin Yan
  • Ruijuan Bai
  • Yuxin Shi
  • Huatong Guo
  • Can Li
  • Xinjuan Liu
  • Yinyan Gong
  • Lengyuan NiuEmail author
Original Paper


The development of hybrid supercapacitors is limited due to the low specific capacity of traditional carbon-negative materials. Herein, we synthesized two different Fe-based negative electrodes (FeOOH and Fe2O3), and the relationships between structures and capacitive properties of electrodes are systematically studied. Results demonstrate that the Fe2O3 material exhibits higher electrochemical activity than their FeOOH counterparts obtained under the same conditions. Then, a high energy density asymmetric supercapacitor is fabricated by using nanostructured NiCo2S4 and Fe2O3–RGO composite as the positive and negative electrodes, respectively. The assembled device with an extended operation voltage of 1.6 V achieves a maximum energy density of 53.0 Wh kg−1 at a power density of 716 W kg−1 and can still operate at a high power density of 11.5 KW kg−1 with an energy density of 14.2 Wh kg−1, thus holding great potentials for future energy storage devices.


Asymmetric supercapacitor Negative materials Iron oxide Nickel cobalt sulfide 


Funding information

This research was supported by the Zhejiang Provincial Natural Science Foundation of China under Grant No. LQ18E030005, the Opening Foundation of State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals (No. SKLAB02015001), and the Natural Science Foundation of Hainan Province (No. 517301).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Cheng Shen
    • 1
    • 2
  • Rongzhen Li
    • 1
    • 2
  • Lijin Yan
    • 1
    • 2
  • Ruijuan Bai
    • 3
  • Yuxin Shi
    • 1
    • 2
  • Huatong Guo
    • 1
    • 2
  • Can Li
    • 1
    • 2
  • Xinjuan Liu
    • 1
    • 2
  • Yinyan Gong
    • 1
    • 2
  • Lengyuan Niu
    • 1
    • 2
    • 4
    Email author
  1. 1.Institute of Coordination Bond Metrology and Engineering (CBME)China Jiliang UniversityHangzhouPeople’s Republic of China
  2. 2.College of Materials Science and EngineeringChina Jiliang UniversityHangzhouPeople’s Republic of China
  3. 3.Sanya Technology Institute for Quality and Technical Supervision of Hainan ProvinceSanyaPeople’s Republic of China
  4. 4.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous MetalsLanzhou University of TechnologyLanzhouPeople’s Republic of China

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