journal article·2024-09-09Open access

Titanium Nitride–Cellulose Nanofiber Composite Separator for Zn Anode Stability in Aqueous Batteries

Jingjing Niu, Jin Cao, Xueqing Zhang, Dongdong Zhang, Chengwu Yang, Kittima Lolupiman, Zhiyuan Zeng, Xinyu Zhang, Jiaqian Qin

ACS Applied Energy Materials· Volume 7· Issue 17

Abstract

High Resolution Image Download MS PowerPoint Slide Aqueous zinc-ion batteries (ZIBs) face significant challenges of Zn dendrite formation, electrode passivation, and corrosion. Herein, we introduce a composite separator composed of titanium nitride (TiN) and cellulose nanofiber (CNF), termed TN5, designed to enhance the performance of ZIBs. The TN5 separator, with a thickness of approximately 45 μm, combines low cost, high thermal stability, and flexibility. Experimental and theoretical analyses demonstrate that the TN5 separator improves Zn 2+ ion diffusion and ensures uniform Zn plating, effectively mitigating dendrite and side reactions. Zn//Zn symmetric cells using the TN5 separator achieve exceptional cycling life spans of 2500 h at 0.5 mA cm –2 and 1000 h at 5 mA cm –2, significantly outperforming cells with CNF separators. Additionally, Zn//NVO full batteries with TN5 separators exhibit a superior discharge capacity and cycling stability. The enhanced performance is attributed to improved wettability, reduced concentration polarization, and the promotion of Zn (002) plane deposition. This study provides a comprehensive approach to developing high-performance, cost-effective separators for ZIBs, offering insights into the stabilization of Zn anodes and the advancement of aqueous zinc-ion battery technology.
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Research context

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

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

Affiliations

International Graduate Program of Nanoscience & Technology, Chulalongkorn University, Bangkok 10330, Thailand

Center of Excellence on Advanced Materials for Energy Storage, Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok 10330, Thailand

College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, Hubei 443002, China

State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China

Department of Materials Science and Engineering and State Key Laboratory of Marine Pollution, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, China

Funding

Thailand Science Research and Innovation · National Key Research and Development Program of China · National Research Council of Thailand · State Key Laboratory of Metastable Materials Science and Technology · Natural Science Foundation of Hubei Province · National Natural Science Foundation of China · Chulalongkorn University

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