journal article·2022-12Open access

Latticed‐Confined Conversion Chemistry of Battery Electrode

Libin Fang, Haosheng Li, Ben Bin Xu, Jie Ma, Hongge Pan, Qinggang He, Tianlong Zheng, Wenbin Ni, Yue Lin, Yangmu Li, Yue Cao, Chengjun Sun, Mi Yan, Wenping Sun, Yinzhu Jiang

Small· Volume 18· Issue 48

Abstract

Abstract The electrochemical conversion reaction, usually featured by multiple redox processes and high specific capacity, holds great promise in developing high‐energy rechargeable battery technologies. However, the complete structural change accompanied by spontaneous atomic migration and volume variation during the charge/discharge cycle leads to electrode disintegration and performance degradation, therefore severely restricting the application of conventional conversion‐type electrodes. Herein, latticed‐confined conversion chemistry is proposed, where the “intercalation‐like” redox behavior is realized on the electrode with a “conversion‐like” high capacity. By delicately formulating the high‐entropy compounds, the pristine crystal structure can be preserved by the inert lattice framework, thus enabling an ultra‐high initial Coulombic efficiency of 92.5% and a long cycling lifespan over a thousand cycles after the quasistatic charge–discharge cycle. This lattice‐confined conversion chemistry unfolds a ubiquitous insight into the localized redox reaction and sheds light on developing high‐performance electrodes toward next‐generation high‐energy rechargeable batteries.
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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced battery technologies research · Advanced Battery Materials and Technologies

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

Affiliations

School of Materials Science and Engineering ZJU‐Hangzhou Global Scientific and Technological Innovation Centre Hangzhou Zhejiang 310027 P. R. China

Mechanical and Construction Engineering Faculty of Engineering and Environment Northumbria University Newcastle upon Tyne NE1 8ST UK

Key Laboratory of Artificial Structures and Quantum Control School of Physics and Astronomy Shanghai Jiao Tong University Shanghai 200240 P. R. China

Institute of Science and Technology for New Energy Xi'an Technological University Xi'an 710021 P. R. China

School of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 P. R. China

Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 P. R. China

Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 P. R. China

Argonne National Laboratory Lemont IL 60439 USA

Pritzker School of Molecular Engineering University of Chicago Chicago IL 60637 USA

State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization Baotou Research Institute of Rare Earths Baotou 014030 P. R. China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province · Fundamental Research Funds for the Central Universities · U.S. Department of Energy · Office of Science · Basic Energy Sciences

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