Science China Chemistry

, Volume 62, Issue 1, pp 118–125 | Cite as

High performance TiP2O7 nanoporous microsphere as anode material for aqueous lithium-ion batteries

  • Yunping Wen
  • Yao Liu
  • Duan Bin
  • Zhuo Wang
  • Congxiao Wang
  • Yuliang Cao
  • Xinping Ai
  • Yongyao XiaEmail author


This work developed a facile way to mass-produce a carbon-coated TiP2O7 nanoporous microsphere (TPO-NMS) as anode material for aqueous lithium-ion batteries via solid-phase synthesis combined with spray drying method. TiP2O7 shows great prospect as anode for aqueous rechargeable lithium-ion batteries (ALIBs) in view of its appropriate intercalation potential of −0.6 V (vs. SCE) before hydrogen evolution in aqueous electrolytes. The resulting sample presents the morphology of secondary microspheres (ca. 20 μm) aggregated by carbon-coated primary nanoparticles (100 nm), in which the primary nanoparticles with uniform carbon coating and sophisticated pore structure greatly improve its electrochemical performance. Consequently, TPONMS delivers a reversible capacity of 90 mA h/g at 0.1 A/g, and displays enhanced rate performance and good cycling stability with capacity retention of 90% after 500 cycles at 0.2 A/g. A full cell containing TPO-NMS anode and LiMn2O4 cathode delivers a specific energy density of 63 W h/kg calculated on the total mass of anode and cathode. It also shows good rate capacity with 56% capacity maintained at 10 A/g rate (vs. 0.1 A/g), as well as long cycle life with the capacity retention of 82% after 1000 cycles at 0.5 A/g.


aqueous lithium-ion batteries H2 evolution reaction anode TiP2O7 spray drying 



This work was supported by the National Natural Science Foundation of China (21333002), and the National Key Research and Development Plan (2016YFB0901500).


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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Yunping Wen
    • 1
  • Yao Liu
    • 1
  • Duan Bin
    • 1
  • Zhuo Wang
    • 1
  • Congxiao Wang
    • 1
  • Yuliang Cao
    • 2
  • Xinping Ai
    • 2
  • Yongyao Xia
    • 1
    Email author
  1. 1.Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New EnergyFudan UniversityShanghaiChina
  2. 2.Hubei Key Laboratory Electrochem Power Sources, College of Chemistry and Molecular ScienceWuhan UniversityWuhanChina

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