Jump to main content
Jump to site search

Issue 6, 2018
Previous Article Next Article

A highly stabilized nickel-rich cathode material by nanoscale epitaxy control for high-energy lithium-ion batteries

Author affiliations

Abstract

Advanced surface engineering of nickel-rich cathode materials greatly enhances their structural/thermal stability. However, their application into lithium-ion full-cells still faces challenges, such as the unstable solid electrolyte interphase (SEI) layer on the anode. Herein, we reveal that the degradation of battery cycle life is caused by the release of divalent nickel ions from the LiNi0.8Co0.1Mn0.1O2 cathode and the formation of nickel metal particles on the graphite anode surface, deteriorating the anode SEI layer and its structural integrity. On the basis of this finding, we demonstrate a stable lithium-ion battery by modifying the cathode surface by creating a nanostructured stabilizer with an epitaxial structure that enhances the morphological robustness. During cycling, the nickel defects in the cathode are significantly suppressed, preventing nickel ion crossover. In particular, the anode SEI layer maintains a uniform and dense structure, leading to outstanding cycling stability in the full-cell with a capacity retention of ∼86% after 400 cycles at 25 °C.

Graphical abstract: A highly stabilized nickel-rich cathode material by nanoscale epitaxy control for high-energy lithium-ion batteries

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Jan 2018, accepted on 10 Apr 2018 and first published on 10 Apr 2018


Article type: Communication
DOI: 10.1039/C8EE00155C
Citation: Energy Environ. Sci., 2018,11, 1449-1459
  •   Request permissions

    A highly stabilized nickel-rich cathode material by nanoscale epitaxy control for high-energy lithium-ion batteries

    J. Kim, H. Ma, H. Cha, H. Lee, J. Sung, M. Seo, P. Oh, M. Park and J. Cho, Energy Environ. Sci., 2018, 11, 1449
    DOI: 10.1039/C8EE00155C

Search articles by author

Spotlight

Advertisements