DataVXAdvanced Functional MaterialsPaper
journal article·2025-05Open access

Highly‐Entangled Hydrogel Electrolyte for Fast Charging/Discharging Properties in Aqueous Zinc Ion Batteries

Zhaoxi Shen, Yu Liu, Zhongheng Li, Ziqing Tang, Jun Pu, Lei Luo, Yu Ji, Junpeng Xie, Zheng Shu, Yagang Yao, Ning Zhang, Guo Hong

Advanced Functional Materials· Volume 35· Issue 21
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Source abstract

Abstract

Abstract Aqueous zinc ion batteries coupling with conventional hydrogel electrolyte have the advantages of high safety, low cost, and simple manufacturing process while they are difficult for fast charging/discharging application scenarios due to the sluggish kinetics. Herein, a new strategy is developed for synthesizing a highly‐entangled polyacrylamide (HE‐PAM) hydrogel electrolyte to dramatically enhance the ion transportation and mechanical stability. The developed hydrogel electrolyte has lower ionic resistance and a strong elastic modulus. After being assembled into Zn/MnO2 batteries, the HE‐PAM hydrogel electrolyte exhibits excellent cycling stability and high‐rate capability under high current densities. Specifically, the Zn//HE‐PAM//MnO2 battery can resist the highest current of 35 A g−1, which outperforms previously reported works. Moreover, the HE‐PAM hydrogel electrolyte can also support the fast charging/discharging in proton ion batteries with a high capacity retention rate of 50% under 50 A g−1. This progress on hydrogel electrolytes can boost the development of quasi‐solid‐state batteries in the fast charging/discharging aspect.
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Research context

Energy storagePolymers

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

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

Affiliations

College of Chemistry and Materials Science Key Laboratory of Analytical Science and Technology of Hebei Province Institute of Life Science and Green Development Hebei University Baoding 071002 P. R. China

Institute of Applied Physics and Materials Engineering University of Macau Avenida da Universidade Taipa Macau 999078 P. R. China

Wenzhou Institute University of Chinese Academy of Sciences Wenzhou 352001 P. R. China

National Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 P. R. China

Department of Materials Science and Engineering & Centre of Super‐Diamond and Advanced Films (COSDAF) City University of Hong Kong Kowloon Hong Kong 999077 P. R. China

Funding

City University of Hong Kong · National Key Research and Development Program of China · National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province

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