The improved performance of lithium-ion batteries via the novel electron transport catalytic role of polyaniline (PANI) in PANI/Co3O4–CuO raspberry as new anode material


This paper presents a new and simple method for high-rate performance of PANI/Co3O4–CuO (PANI/MO–M′O′) raspberry via the sol–gel method and compares structural and electrochemical characteristics of both Co3O4–CuO (MO–M′O′) nanomatrix and PANI/MO–M′O′ raspberry nanoarray. Using the PANI/MO–M′O′ raspberry-inspired anode in lithium-ion batteries (LIBs) resulted in the improved electrochemical performances of cycling stability, discharge capacity, and rate capability compared with the MO–M′O′ nanomatrix. In addition, regarding anode material for LIBs, PANI/MO–M′O′ anode presented the specific capacity of 455.34 mAh g−1 at the current density of 1.0 A g−1 after 60 cycles. Further, the PANI/MO–M′O′ nanoarray produced a satisfied discharge capacity of 311.22 mAh g−1 at a density of 3.0 A g−1, as well as an appropriate cycle stability and rate capability. Finally, the improved electrochemical property of this unique organic–inorganic heterostructure (PANI/MO–M′O′ raspberry design) can be related to the avoid aggregation, an effective electric contact, improved electrochemical stability, and a lower charge-transfer resistance during cycling performance. These advantages are mainly because of the novel catalytic role of the PANI electron transfer in the PANI/MO–M′O′ raspberry as a new anode material.

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The authors acknowledge the financial support of the Graduate Council of the University of Sistan and Baluchestan and the National Nanotechnology Initiative funded by the Iranian government. The authors are also grateful to the Renewable Energy Research Center (RERC), Amirkabir University of Technology (Tehran, Iran), for the financial support of the present research.

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Correspondence to Navid Zamani or Ali Reza Modarresi-Alam.

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Zamani, N., Modarresi-Alam, A.R., Noroozifar, M. et al. The improved performance of lithium-ion batteries via the novel electron transport catalytic role of polyaniline (PANI) in PANI/Co3O4–CuO raspberry as new anode material. J Appl Electrochem 49, 327–340 (2019).

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  • Metal oxides
  • Polyaniline
  • Raspberry design
  • Nanocomposite
  • Lithium-ion batteries