In situ observation of lithium deposition processes in solid polymer and gel electrolytes

Tetsuya Osaka*, Takayuki Homma, Toshiyuki Momma, Hideki Yarimizu

*この研究の対応する著者

研究成果: Article査読

59 被引用数 (Scopus)

抄録

Deposition processes of lithium in solid polymer [poly(ethylene oxide) (PEO)8 + LiClO4] and gel [PEO8 + propylene carbonate(PC) + LiClO4] electrolytes, as well as in the liquid (PC + LiClO4) one, were observed in situ using an optical microscope and their difference is discussed. It was confirmed that the dendritic growth of lithium, which appeared in the liquid electrolyte, is suppressed in the solid polymer due to the immobility of the electrolyte molecules, although non-uniform coverage of the cathode was observed because of its low conductivity. In contrast, the gel electrolyte possessed advantages of both the liquid and solid electrolytes, resulting in a smooth and uniform deposition in the current density region up to 2.0mAcm-2.

本文言語English
ページ(範囲)153-156
ページ数4
ジャーナルJournal of Electroanalytical Chemistry
421
1-2
DOI
出版ステータスPublished - 1997 1月 30

ASJC Scopus subject areas

  • 分析化学
  • 化学工学(全般)
  • 電気化学

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