Surface Modifications of Positive-Electrode Materials for Lithium Ion Batteries

Authors

  • Nam Hee Kwon Department of Chemistry, University of Fribourg, Chemin du Musee 9, CH-1700 Fribourg
  • Joanna Conder Department of Chemistry, University of Fribourg, Chemin du Musee 9, CH-1700 Fribourg
  • Mohammed Srout Department of Chemistry, University of Fribourg, Chemin du Musee 9, CH-1700 Fribourg; Cadi Ayyad University (Marrakech, Morocco)
  • Katharina M. Fromm Department of Chemistry, University of Fribourg, Chemin du Musee 9, CH-1700 Fribourg

DOI:

https://doi.org/10.2533/chimia.2019.880

Keywords:

Cycling stability, Li-ion batteries, Positive electrodes, Surface coating, Tailoring surface properties

Abstract

Lithium ion batteries are typically based on one of three positive-electrode materials, namely layered oxides, olivine- and spinel-type materials. The structure of any of them is 'resistant' to electrochemical cycling, and thus, often requires modification/post-treatment to improve a certain property, for example, structural stability, ionic and/or electronic conductivity. This review provides an overview of different examples of coatings and surface modifications used for the positive-electrode materials as well as various characterization techniques often chosen to confirm/detect the introduced changes. It also assesses the electrochemical success of the surface-modified positive-electrode materials, thereby highlighting remaining challenges and pitfalls.

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Published

2019-11-01

How to Cite

[1]
N. H. Kwon, J. Conder, M. Srout, K. M. Fromm, Chimia 2019, 73, 880, DOI: 10.2533/chimia.2019.880.