journal article·2019-09-23

Quasi-Isolated Au Particles as Heterogeneous Seeds To Guide Uniform Zn Deposition for Aqueous Zinc-Ion Batteries

Mangwei Cui, Yan Xiao, Litao Kang, Wei Du, Yanfeng Gao, Xueqin Sun, Yanli Zhou, Xiangming Li, Hongfei Li, Fuyi Jiang, Chunyi Zhi

ACS Applied Energy Materials· Volume 2· Issue 9
Publisher page

Abstract

As a promising anode for aqueous batteries, Zn metal shows a number of attractive advantages such as low cost, low redox potential, high capacity, and environmental benignity. Nevertheless, the quick growth of dendrites/protrusions on the “hostless” Zn anodes not only enlarges batteries’ internal resistance but also causes sudden shorting failure by piercing separators. Herein, we report a novel heterogeneous seed method to guide the morphology evolution of plated Zn. The heterogeneous seeds are sputtering-deposited quasi-isolated nano-Au particles (Au-NPs) that enable a uniform and stable Zn-plating/stripping process on the anodes. Tested on Zn|Zn symmetric cells, the Au-nanoparticle (NP) decorated Zn anodes (NA-Zn) demonstrate much better cycling stability than the bare ones (92 vs 2000 h). In NA-Zn|CNT/MnO2 batteries, this heterogeneous seed prolongs the lifetime of the device from ∼480 cycles up to 2000 cycles. This work offers a facile and promising Zn dendrite/protrusion suppressing route for the achievement of long-life Zn-ion batteries.
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Research context

OpenAlex topics: Advanced battery technologies research · Advanced Battery Materials and Technologies · Electrocatalysts for Energy Conversion

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

Affiliations

College of Environment and Materials Engineering, Yantai University, Yantai 264005, China

Songshan Lake Laboratory of Materials Science, Dongguan, Guangdong 523808, China

College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China

Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, China

Funding

National Natural Science Foundation of China · Doctor Foundation of Shandong Province · Outstanding Academic Leaders program of Shanghai Municipal Science and Technology Commission · State Outstanding Young Scholars · Major Basic Research Projects of Shandong Natural Science Foundation · Yantai Science and Technology Plan Projects · Early Career Scheme of the Research Grants Council of Hong Kong SAR · Changjiang Scholars Programmes

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