Addressing voltage decay in Li-rich cathodes by broadening the gap between metallic and anionic bands

Jicheng Zhang; Qinghua Zhang; Deniz Wong; Nian Zhang; Guoxi Ren; Lin Gu; Christian Schulz; Lunhua He; Yang Yu; Xiangfeng Liu

doi:10.1038/s41467-021-23365-9

Nature Communications (May 2021)

Addressing voltage decay in Li-rich cathodes by broadening the gap between metallic and anionic bands

Jicheng Zhang,
Qinghua Zhang,
Deniz Wong,
Nian Zhang,
Guoxi Ren,
Lin Gu,
Christian Schulz,
Lunhua He,
Yang Yu,
Xiangfeng Liu

Affiliations

Jicheng Zhang: Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences
Qinghua Zhang: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science
Deniz Wong: Department of Dynamics and Transport in Quantum Materials, Helmholtz-Center Berlin for Materials and Energy, Hahn-Meitner-Platz 1
Nian Zhang: Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Guoxi Ren: Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Lin Gu: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science
Christian Schulz: Department of Dynamics and Transport in Quantum Materials, Helmholtz-Center Berlin for Materials and Energy, Hahn-Meitner-Platz 1
Lunhua He: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science
Yang Yu: Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences
Xiangfeng Liu: Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences

DOI: https://doi.org/10.1038/s41467-021-23365-9
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 10

Abstract

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Voltage fade is a critical issue for Li-rich transition metal oxide cathode. Here, the authors modulate the oxygen anionic redox chemistry and enlarges the gap between metallic and anionic states by constructing Li2ZrO3 slabs into Li2MnO3 domain in Li1.21Ni0.28Mn0.51O2 which fundamentally suppresses the voltage decay.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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