journal article·2022-12-09

In Situ Growth of a Metal–Organic Framework-Based Solid Electrolyte Interphase for Highly Reversible Zn Anodes

Ziqi Wang, Huige Chen, Huashan Wang, Weiyuan Huang, Hongyan Li, Feng Pan

ACS Energy Letters· Volume 7· Issue 12
Publisher page

Abstract

Aqueous Zn ion batteries are receiving tremendous attention owing to their attractive features with respect to safety, cost, and scalability, yet their lifespan is severely limited by the poor reversibility of the Zn metal anode. Thereby, an artificial solid electrolyte interphase (ASEI) based on an anionic metal–organic framework (MOF) is in situ fabricated on the surface of Zn anodes. The robust ASEI protects the anode from side reactions and largely promotes its Coulombic efficiency during battery cycling. Owing to the high intrinsic Zn2+ conductivity and abundant zincophilic sites, it also facilitates enhanced Zn redox activities. More interestingly, the consecutive sulfonate groups in the MOF channels guide rapid and directional transport of Zn ions and thus endow a dendrite-free Zn plating/stripping lifespan of 5700 h at 2 mA cm–2. This work provides a fresh strategy to promote the performance of Zn and even other metallic anodes toward practical battery applications.
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Research context

OpenAlex topics: Advanced battery technologies research · Advanced Battery Materials and Technologies · Thermal Expansion and Ionic Conductivity

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

Affiliations

Department of Materials Science and Engineering, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China

Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, P. R. China

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

Funding

Guangdong Science and Technology Department · Central University Basic Research Fund of China · National Natural Science Foundation of China · Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University · Guangzhou Basic and Applied Basic Research Foundation

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