A nanorod-like Ni-rich layered cathode with enhanced Lidiffusion pathways for high-performance lithium-ion batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

6 Scopus Citations
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Author(s)

  • Fangkun Li
  • Zhengbo Liu
  • Jiadong Shen
  • Xijun Xu
  • Liyan Zeng
  • He Zhu
  • Jun Liu
  • Min Zhu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)2830-2839
Journal / PublicationJournal of Materials Chemistry A
Volume9
Issue number5
Online published18 Dec 2020
Publication statusPublished - 7 Feb 2021

Abstract

Ni-rich LiNixCoyMn1−x−yO(x≥ 0.6) layered oxide cathodes are among the most promising cathode materials for lithium-ion batteries (LIBs) owing to their superior capacity, prominent energy density and low cost. However, the large volume change caused by phase transition and poor diffusion kinetics limits their application. Herein, a nanorod-like Ni-rich layered LiNi0.6Co0.2Mn0.2Ocathode is synthesized via a facile surfactant-free co-precipitation route. Due to the unique nanorod morphology, more {010} electrochemically active planes are exposed. As a result, structural stability and diffusion kinetics are greatly improved. In terms of performance, it exhibits outstanding structural stability (the volume change is as small as 2.12% in the processes of charging and discharging) and rate performance (achieving a high discharge capacity of 152.2 mA h g−1at 5C). Such rationally designed cathode could meet the high high-energy requirements of next generation LIBs.

Citation Format(s)

A nanorod-like Ni-rich layered cathode with enhanced Lidiffusion pathways for high-performance lithium-ion batteries. / Li, Fangkun; Liu, Zhengbo; Shen, Jiadong; Xu, Xijun; Zeng, Liyan; Zhang, Binghao; Zhu, He; Liu, Qi; Liu, Jun; Zhu, Min.

In: Journal of Materials Chemistry A, Vol. 9, No. 5, 07.02.2021, p. 2830-2839.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review