journal article·2022-01-14

Preferred Orientation of TiN Coatings Enables Stable Zinc Anodes

Jiaxian Zheng, Zhen Cao, Fangwang Ming, Hanfeng Liang, Zhengbing Qi, Wanqiang Liu, Chuan Xia, Cuixue Chen, Luigi Cavallo, Zhoucheng Wang, Husam N. Alshareef

ACS Energy Letters· Volume 7· Issue 1
Publisher page

Abstract

Metallic Zn is considered as an ideal anode while its widespread use in rechargeable aqueous batteries still faces many challenges, mostly associated with the dendritic growth and corrosion of Zn and the side reactions. In this work, we demonstrate that a TiN protective coating layer with the preferential (200) orientation can effectively suppress both the Zn dendritic growth and side reactions; more interestingly, it can regulate the growth pattern of the byproduct (zinc hydroxide sulfate or ZHS) by inducing a lateral growth. As a result, reversible Zn plating/stripping over 2300 h at a practical current density of 1 mA cm–2 is achieved along with a nearly 100% Coulombic efficiency. This work not only establishes TiN (200) coatings as an effective Zn anode protective layer but also provides insights into the role of ZHS byproduct as well as strategies to inhibit side reaction and to regulate the growth pattern of ZHS.
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Research context

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

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

Affiliations

State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China

KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia

Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia

Key Laboratory of Functional Materials and Applications of Fujian Province, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China

School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China

Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, Zhejiang, China

School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China

Funding

National Natural Science Foundation of China

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