Synthesis of Ni-Rich Layered-Oxide Nanomaterials with Enhanced Li-Ion Diffusion Pathways as High-Rate Cathodes for Li-Ion Batteries

Ming Jiang, Qian Zhang (Corresponding author), Xiaochao Wu, Zhiqiang Chen, Dmitri L. Danilov, Rüdiger A. Eichel, Peter H.L. Notten (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Ni-rich LiNi0.6Co0.2Mn0.2O2 nanomaterials with a high percentage of exposed {010} facets have been prepared by surfactant-assisted hydrothermal synthesis followed by solid-state reaction. Characterization by X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) confirmed that the particles have enhanced the growth of nanocrystal planes in favor of Li-ion diffusion. Electrochemical tests show these cathode materials endow a large Li-ion diffusion coefficient, which leads to a superior rate capability and cyclability, suggesting these cathode materials are highly beneficial for practical application in Li-ion batteries.

Original languageEnglish
Pages (from-to)6583-6590
Number of pages8
JournalACS Applied Energy Materials
Volume3
Issue number7
DOIs
Publication statusPublished - 27 Jul 2020

Keywords

  • active facets
  • high rate
  • lithium-ion batteries
  • nanobrick structure
  • Ni-rich cathodes

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