Insights into the enhanced cycling stability of cobalt-free single-crystal layered oxide cathodes at elevated voltage

Author:

Liu Tiancheng1ORCID,Fan Ke1ORCID,Chen Changsheng1,Dong Mingxia2,Zhu Yanping1ORCID,Chen Gao1ORCID,Li Jiangtong1ORCID,Lin Zezhou1ORCID,Li Liuqing1,Zhu Ye1,Li Huangxu1,Huang Haitao1ORCID

Affiliation:

1. Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong SAR, China

2. BASF Shanshan Battery Materials Co., Ltd, China

Abstract

The single-crystal LiNi0.6Mn0.4O2 (NM64, at 4.6 V) demonstrates better structural and thermal stability than LiNi0.8Mn0.2O2 (NM82, at 4.5 V) with smaller c-axis lattice contraction.

Funder

Research Grants Council, University Grants Committee

Innovation and Technology Commission – Hong Kong

Hong Kong Polytechnic University

Publisher

Royal Society of Chemistry (RSC)

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