DataVXAdvanced Energy MaterialsPaper
journal article·2023-08

Breaking Consecutive Hydrogen‐Bond Network Toward High‐Rate Hydrous Organic Zinc Batteries

Changjun Cui, Daliang Han, Haotian Lu, Zhiguo Li, Kangyu Zhang, Bo Zhang, Xiaoxia Guo, Rui Sun, Xiaolin Ye, Jiachen Gao, Yingxin Liu, Yong Guo, Rongwei Meng, Chunguang Wei, Lichang Yin, Feiyu Kang, Zhe Weng, Quan‐Hong Yang

Advanced Energy Materials· Volume 13· Issue 31
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Source abstract

Abstract

Abstract Zinc batteries hold great potential for stationary energy storage but suffer from severe dendrite growth, corrosion, and hydrogen evolution troubles in aqueous electrolytes. Despite the impressive efficacy of non‐flammable hydrous organic electrolytes in addressing these problems, the insufficient ionic conductivity hinders the rate capability and practicability of hydrous organic Zn batteries. Here, methanol is proposed as a co‐solvent for ethylene glycol (EG)‐based hydrous organic electrolytes, where its methyl terminal group can interrupt the continuous intermolecular hydrogen bond network among EG. The new hydrous organic electrolyte exhibits a doubled ionic conductivity without sacrificing the exceptional nonflammability. As a result, the Zn anode exhibits a long‐term cycling stability over 4000 h at 0.5 mA cm−2, a high Coulombic efficiency of 99.5%, high‐rate capability up to 20 mA cm‒2, and impressive low‐temperature tolerance of ‒60 °C. The Zn||V2O5 pouch cell with the electrolyte is capable of operating under extreme operation conditions involving needling, package breakage, and even exposure to fire. This work paves an avenue toward electrolyte design for high‐rate practical Zn batteries and beyond.
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Research context

Energy storageMetals & alloys

OpenAlex topics: Advanced battery technologies research · Perovskite Materials and Applications · Advanced Battery Materials and Technologies

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

Affiliations

Nanoyang Group Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage School of Chemical Engineering and Technology and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin University Tianjin 300072 China

National Industry‐Education Integration Platform of Energy Storage Tianjin University Tianjin 300072 China

Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192 China

Department of Chemistry National University of Singapore Singapore 117543 Singapore

Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China

Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road Shenyang 110016 China

Shenzhen Cubic Science Co., Ltd. Shenzhen 518055 China

Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · China Postdoctoral Science Foundation · Natural Science Foundation of Tianjin City · Fundamental Research Funds for the Central Universities

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