Inhibition of oxygen dimerization by local symmetry tuning in Li-rich layered oxides for improved stability

Fanghua Ning; Biao Li; Jin Song; Yuxuan Zuo; Huaifang Shang; Zimeng Zhao; Zhen Yu; Wangsheng Chu; Kun Zhang; Guang Feng; Xiayan Wang; Dingguo Xia

doi:10.1038/s41467-020-18423-7

Nature Communications (Oct 2020)

Inhibition of oxygen dimerization by local symmetry tuning in Li-rich layered oxides for improved stability

Fanghua Ning,
Biao Li,
Jin Song,
Yuxuan Zuo,
Huaifang Shang,
Zimeng Zhao,
Zhen Yu,
Wangsheng Chu,
Kun Zhang,
Guang Feng,
Xiayan Wang,
Dingguo Xia

Affiliations

Fanghua Ning: Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, College of Engineering, Peking University
Biao Li: Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, College of Engineering, Peking University
Jin Song: Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, College of Engineering, Peking University
Yuxuan Zuo: Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, College of Engineering, Peking University
Huaifang Shang: Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, College of Engineering, Peking University
Zimeng Zhao: Department of Chemistry and Chemical Engineering, Beijing University of Technology
Zhen Yu: National Synchrotron Radiation Laboratory, University of Science and Technology of China
Wangsheng Chu: National Synchrotron Radiation Laboratory, University of Science and Technology of China
Kun Zhang: Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, College of Engineering, Peking University
Guang Feng: Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, College of Engineering, Peking University
Xiayan Wang: Department of Chemistry and Chemical Engineering, Beijing University of Technology
Dingguo Xia: Beijing Key Laboratory of Theory and Technology for Advanced Batteries Materials, College of Engineering, Peking University

DOI: https://doi.org/10.1038/s41467-020-18423-7
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 12

Abstract

Read online

Li-rich layered oxide cathodes show high capacities in Li-ion batteries but suffer from structural degradation via O–O dimerization. Here, the authors present local-symmetry-tuned Li2RuO3 with oxygen redox involving a telescopic O–Ru–O configuration avoiding O2 release, enhancing cycling stability.

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/

About the journal