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In-situ<p> growing polyaniline nano-spine array on FeVO4 nanobelts as high-performance rechargeable aluminum-ion battery cathode</p>

  • Wang, Yan
  • Cai, Junfei
  • Han, Tianli
  • Hu, Chaoquan
  • Zhu, Yajun
  • Li, Jinjin
  • Liu, Jinyun
Publication Date
Jul 30, 2022
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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High-performance rechargeable aluminum-ion (Al-ion) battery has received broad attention for ultrafast charging applications. Here, we develop a [email protected] (PANI) nanobelt composite composing of in-situ growing PANI nano-spine array on FeVO4 nanobelts, which display an excellent electrochemical performance as Al-ion battery cathode. After cycling 300 cycles at 0.3 A g(-1), the specific capacity of the [email protected] nanobelts remains 300 mAh g(-1). The rate-performance of the [email protected] nanobelts keeps stable after cycling three rounds. In addition, the [email protected] displays a Coulombic efficiency of 98.8% and a specific capacity of 268.6 mAh g(-1) after 200 cycles at a low temperature of-10 ?. In addition, galvanostatic intermittent titration technology (GITT) measurements and density function theory (DFT) calculations indicate the [email protected] composite exhibits improved transport dynamics of both ions and electrons, displaying its promising application for developing many other emerging energy-storage composites and systems.

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