Journal of the Korean Electrochemical Society (전기화학회지)

The Korean Electrochemical Society (한국전기화학회)
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New Design of Li[Ni0.8Co0.15Al0.05]O2 Nano-bush Structure as Cathode Material through Electrospinning

  • Nam, Yun-Chae (Department of Nano-Polymer Science & Engineering Korea National University of Transportation) ;
  • Lee, Seon-Jin (Department of Nano-Polymer Science & Engineering Korea National University of Transportation) ;
  • Kim, Hae-In (Department of Nano-Polymer Science & Engineering Korea National University of Transportation) ;
  • Son, Jong-Tae (Department of Nano-Polymer Science & Engineering Korea National University of Transportation)
  • Received : 2020.09.01
  • Accepted : 2021.02.06
  • Published : 2021.02.28
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Abstract

In this study, new morphology of NCA cathode material for lithium ion batteries was obtained through the electrospinning method. The prepared NCA nanofibers formed a nano-bush structure, and the primary particles were formed on the surface of the nanofibers. The embossing primary particles increased the surface area thus increasing the reactivity of lithium ions. The nano-bush structure could shorten the Li+ diffusion path and improve the Li+ diffusion coefficient. Scanning electron microscopy (SEM) revealed that the synthesized material consisted of nanofibers. The surface area of the nanofibers increased by primary particles was measured using atomic force microscopy (AFM). X-ray diffraction (XRD) analysis was carried out to determine the structure of the NCA nanofibers.

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References

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