Self-assembled hydrated copper coordination compounds as ionic conductors for room temperature solid-state batteries

Xiao Zhan; Miao Li; Xiaolin Zhao; Yaning Wang; Sha Li; Weiwei Wang; Jiande Lin; Zi-Ang Nan; Jiawei Yan; Zhefei Sun; Haodong Liu; Fei Wang; Jiayu Wan; Jianjun Liu; Qiaobao Zhang; Li Zhang

doi:10.1038/s41467-024-45372-2

Nature Communications (Feb 2024)

Self-assembled hydrated copper coordination compounds as ionic conductors for room temperature solid-state batteries

Xiao Zhan,
Miao Li,
Xiaolin Zhao,
Yaning Wang,
Sha Li,
Weiwei Wang,
Jiande Lin,
Zi-Ang Nan,
Jiawei Yan,
Zhefei Sun,
Haodong Liu,
Fei Wang,
Jiayu Wan,
Jianjun Liu,
Qiaobao Zhang,
Li Zhang

Affiliations

Xiao Zhan: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Tan Kah Kee Innovation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen
Miao Li: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Tan Kah Kee Innovation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen
Xiaolin Zhao: State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences
Yaning Wang: State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences
Sha Li: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Tan Kah Kee Innovation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen
Weiwei Wang: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Tan Kah Kee Innovation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen
Jiande Lin: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Tan Kah Kee Innovation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen
Zi-Ang Nan: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Tan Kah Kee Innovation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen
Jiawei Yan: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Tan Kah Kee Innovation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen
Zhefei Sun: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Tan Kah Kee Innovation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen
Haodong Liu: Chemical Engineering, UC San Diego
Fei Wang: Department of Materials Science, Fudan University
Jiayu Wan: Future Battery Research Center, Global Institute of Future Technology, Shanghai Jiaotong University
Jianjun Liu: State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences
Qiaobao Zhang: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Tan Kah Kee Innovation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen
Li Zhang: State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Tan Kah Kee Innovation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen

DOI: https://doi.org/10.1038/s41467-024-45372-2
Journal volume & issue: Vol. 15, no. 1
pp. 1 – 14

Abstract

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Abstract As the core component of solid-state batteries, neither current inorganic solid-state electrolytes nor solid polymer electrolytes can simultaneously possess satisfactory ionic conductivity, electrode compatibility and processability. By incorporating efficient Li+ diffusion channels found in inorganic solid-state electrolytes and polar functional groups present in solid polymer electrolytes, it is conceivable to design inorganic-organic hybrid solid-state electrolytes to achieve true fusion and synergy in performance. Herein, we demonstrate that traditional metal coordination compounds can serve as exceptional Li+ ion conductors at room temperature through rational structural design. Specifically, we synthesize copper maleate hydrate nanoflakes via bottom-up self-assembly featuring highly-ordered 1D channels that are interconnected by Cu2+/Cu+ nodes and maleic acid ligands, alongside rich COO− groups and structural water within the channels. Benefiting from the combination of ion-hopping and coupling-dissociation mechanisms, Li+ ions can preferably transport through these channels rapidly. Thus, the Li+-implanted copper maleate hydrate solid-state electrolytes shows remarkable ionic conductivity (1.17 × 10−4 S cm−1 at room temperature), high Li+ transference number (0.77), and a 4.7 V-wide operating window. More impressively, Li+-implanted copper maleate hydrate solid-state electrolytes are demonstrated to have exceptional compatibility with both cathode and Li anode, enabling long-term stability of more than 800 cycles. This work brings new insight on exploring superior room-temperature ionic conductors based on metal coordination compounds.

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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