Effect of vanillin to prevent the dendrite growth of Zn in zinc-based secondary batteries

Mukkannan Azhagurajan, Akiyoshi Nakata, Hajime Arai, Zempachi Ogumi, Tetsuya Kajita, Takashi Itoh, Kingo Itaya

研究成果: Article査読

22 被引用数 (Scopus)

抄録

Although considerable research efforts have been taken to minimize the dendrite growth of zinc in zinc-based secondary batteries, still dendrite growth is a severe issue, which needs further research in this field. In this paper, we have investigated that vanillin as an additive material either eliminates, or assist to minimize the formation of dendrite growth during the deposition of Zn. More than 300 cycles of charge-discharge curves are tested and even at relatively large current densities, dendrite-free zinc surfaces are observed with small amount of vanillin (0.5–5 mM). On the other hand, dendrite growth was observed in the vanillin-free solution. In order to observe the dynamic zinc deposition process on ultra-flat Au(111), we have used an advanced optical microscopy with differential interference microscopy which allowed us to follow the time dependent processes of deposition and dissolution of Zn at high speed accusation times (4~10 frames/sec even in large area of 100 × 100 μm). We also found that the formation of “black” films depends on the applied electrode potentials. It is anticipated that such insoluble films might be a key factor for the formation and growth of zinc dendrites in rechargeable zinc batteries.

本文言語English
ページ(範囲)A2407-A2417
ジャーナルJournal of the Electrochemical Society
164
12
DOI
出版ステータスPublished - 2017

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 表面、皮膜および薄膜
  • 電気化学
  • 材料化学

フィンガープリント

「Effect of vanillin to prevent the dendrite growth of Zn in zinc-based secondary batteries」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル