journal article·2022-04

Transferring Liquid Metal to form a Hybrid Solid Electrolyte via a Wettability‐Tuning Technology for Lithium‐Metal Anodes

Xin Jin, Ziqiang Cai, Xinrui Zhang, Jianming Yu, Qiya He, Zhenda Lu, Mouad Dahbi, Jones Alami, Jun Lu, Khalil Amine, Huigang Zhang

Advanced Materials· Volume 34· Issue 17
Publisher page

Abstract

Abstract Integrating solid‐state electrolyte (SSE) into Li‐metal anodes has demonstrated great promise to unleash the high energy density of rechargeable Li‐metal batteries. However, fabricating a highly cyclable SSE/Li‐metal anode remains a major challenge because the densification of the SSE is usually incompatible with the reactive Li metal. Here, a liquid‐metal‐derived hybrid solid electrolyte (HSE) is proposed, and a facile transfer technology to construct an artificial HSE on the Li metal is reported. By tuning the wettability of the transfer substrates, electron‐ and ion‐conductive liquid metal is sandwiched between electron‐insulating and ion‐conductive LiF and oxides to form the HSE. The transfer technology renders the HSE continuous, dense, and uniform. The HSE, having high ion transport, electron shut‐off, and mechanical strength, makes the composite anode deliver excellent cyclability for over 4000 h at 0.5 mA cm−2 and 1 mAh cm−2 in a symmetrical cell. When pairing with LiFePO4 and sulfur cathodes, the HSE‐coated Li metal dramatically enhances the performance of full cells. Therefore, this work demonstrates that tuning the interfacial wetting properties provides an alternate approach to build a robust solid electrolyte, which enables highly efficient Li‐metal anodes.
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Research context

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Advanced Battery Technologies Research

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

Affiliations

National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures and College of Engineering and Applied Sciences Nanjing University Jiangsu 210093 China

State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China

Key Laboratory for Macromolecular Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an Shaanxi 710062 China

Shaanxi Key Laboratory of Degradable Biomedical Materials Shaanxi R&D Center of Biomaterials and Fermentation Engineering School of Chemical Engineering Northwest University Taibai North Road 229 Xi'an Shaanxi 710069 China

Materials Science and Nano‐Engineering Department Mohammed VI Polytechnic University Ben Guerir Morocco

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

Department of Material Science and Engineering Stanford University Stanford CA 94305 USA

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · State Key Laboratory of Multi-phase Complex Systems

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