journal article·2025-08

Minimizing Inter‐Lattice Strain to Stabilize Li‐Rich Cathode by Order–Disorder Control

Shenyang Xu, Zhihai Gao, Hao Chen, Liang Chang, Nian Zhang, Dong Zhou, Tianyi Li, Tony Wang, Cong Lin, Haoyu Xue, Qinghao Lai, Weiyuan Huang, Luyi Yang, Jiajie Liu, Tongchao Liu, Lunhua He, Mingjian Zhang, Zhengyan Lun, Feng Pan

Advanced Materials· Volume 37· Issue 32
Publisher page

Abstract

Abstract Li‐rich Mn‐based layered (LMR) cathodes with anionic redox chemistry show great potential for next‐generation sustainable Li‐ion battery (LIB) applications due to the low cost and high energy density. However, the asynchronous structural evolutions with cycling in the heterogeneous composite structure of LMR lead to serious lattice strain and thus fast electrochemical decay, which hinders the commercialization of LMR cathodes. Here, an order–disorder coherent LMR cathode is demonstrated that exhibits a higher average voltage (by 0.25 V), negligible voltage decay (97.6% voltage retention after 100 cycles at 100 mA g−1), and enhanced cycling stability (98% capacity retention after 200 cycles at 100 mA g−1) compared to its layered oxide counterparts. It is proposed that this order–disorder coherent structure design can promote a more synchronous and homogeneous structure evolution during charge and discharge, thus minimizing lattice strain, which significantly prevents layer collapse and collective degradation at high voltage, improving the electrochemical stability. The study displays the feasibility of optimizing the performance of Li‐rich cathode materials through a dedicated order–disorder structure control for sustainable energy storage.
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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Advanced Materials Shenzhen Graduate School Peking University Shenzhen 518055 China

School of Chemical Sciences University of Chinese Academy of Sciences Beijing China

Institute of Materials Research Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 China

China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201204 China

Institute of Advanced Science Facilities Shenzhen 518107 China

X‐Ray Science Division Argonne National Laboratory Lemont IL 60439 USA

Central Analytical Research Facility Institute for Future Environments Queensland University of Technology 2 George Str. Brisbane Queensland 4000 Australia

Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Kowloon Hong Kong SAR 999077 China

Chemical Sciences and Engineering Division Argonne National Laboratory Lemont IL 60439 USA

China Spallation Neutron Source Dongguan 523803 China

School of Science and Engineering The Chinese University of Hong Kong Shenzhen Guangdong 518172 China

Funding

National Natural Science Foundation of China · Basic and Applied Basic Research Foundation of Guangdong Province · Soft Science Research Project of Guangdong Province

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