Studies of the interface between lithium electrodes and polymeric electrolyte systems using in situ FTIR spectroscopy

O. Chusid, Y. Gofer, D. Aurbach, M. Watanabe, T. Momma, T. Osaka*

*この研究の対応する著者

研究成果: Conference article査読

35 被引用数 (Scopus)

抄録

This paper describes studies of the interface between lithium electrodes and solid electrolyte systems using in situ FTIR spectroscopy in a single internal reflectance mode. In this method, the masking effect of the electrolyte matrix components is largely avoided. We studied gel electrolytes based on polyvinylidene difluoride-hexafluoropropylene with cyclic alkyl carbonates as plasticizers, suitable for ambient temperatures, and a solvent free polymer, derivatives of polyethylene oxide (PEO) with a branched structure: poly[ethyleneoxide-2-(2-methoxyethoxy)ethyl glycidyl ether] at elevated temperatures. We found that the surface chemistry of Li electrodes in contact with the gel matrixes is dominated by alkyl carbonate solvent reduction to ROCO2Li surface species. In the case of the PEO-based polymer, the surface reactions of Li electrodes are dominated by salt and trace water reduction. The polymer itself seems to be stable with lithium even at 60°C.

本文言語English
ページ(範囲)632-636
ページ数5
ジャーナルJournal of Power Sources
97-98
DOI
出版ステータスPublished - 2001 7
イベント10th International Meeting on Lithium Batteries - Como, Italy
継続期間: 2001 5 282001 6 2

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 物理化学および理論化学
  • 電子工学および電気工学

フィンガープリント

「Studies of the interface between lithium electrodes and polymeric electrolyte systems using in situ FTIR spectroscopy」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