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Micronanostructured Design of Dendrite-Free Zinc Anodes and Their Applications in Aqueous Zinc-Based Rechargeable Batteries

期刊

SMALL STRUCTURES
卷 2, 期 6, 页码 -

出版社

WILEY
DOI: 10.1002/sstr.202000128

关键词

dendrite suppression; micronanostructures; zinc-based rechargeable batteries; Zn anodes; Zn dendrites

资金

  1. National Natural Science Foundation of China [51972224, U1601216]
  2. Young Elite Scientists Sponsorship Program by CAST [2018QNRC001]

向作者/读者索取更多资源

Aqueous zinc-based rechargeable batteries are promising due to their low cost, high safety, environmental friendliness, and high energy density, but the formation of zinc dendrites poses serious problems. Understanding the growth process of dendrites and suppressing their formation through strategies like micronanostructured design can help advance the development of high-performance dendrite-free zinc anodes.
Aqueous zinc-based rechargeable batteries are considered to be one of the most promising new energy storage systems due to their unique advantages (e.g., low cost, high safety, environmental friendliness, and high energy density). However, the formation of zinc dendrites at the anode during the operation can puncture the separator and even cause short circuit of batteries, which is one of the serious problems in Zn-based batteries. Therefore, understanding the growth process of dendrites and suppressing the formation of zinc dendrites are necessary for the further development and large-scale applications of Zn-based batteries. Herein, the growth mechanism and the influence factors of zinc dendrites are first introduced in detail by combining the experimental and theoretical results. Moreover, the effective strategies for suppressing dendrites through micronanostructured design are summarized, including surface modification, alloying, and substrate selection/porous structure engineering. In the end, the challenges in the further development of high-performance dendrite-free zinc anode are discussed, and the research frontiers trends are prospected as well. It is aimed to shed light on the rational design and structure tuning of high-performance zinc electrode materials for advanced zinc-based secondary batteries for clean energy storage technologies.

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