Liquid chromatography-quadruple time of flight mass spectrometry analysis of products in degraded lithium-ion batteries

Misako Tochihara, Hiroki Nara, Daikichi Mukoyama, Tokihiko Yokoshima, Toshiyuki Momma, Tetsuya Osaka

研究成果: Article査読

27 被引用数 (Scopus)

抄録

The electrode surfaces of degraded lithium-ion batteries (LIB) were analyzed by liquid chromatography-quadrupole time of flight mass spectrometry (LC-QTOF/MS). The solid-electrolyte interphase (SEI) layer influences the performance of LIBs. Therefore, we conducted a study aimed at clarifying the deterioration mechanism of LIBs by examining the components in the SEI before and after degradation due to cycling.We believe that the change in the mass transfer characteristics at the electrode interface influenced by SEI deterioration can be clarified via LC-QTOF/MS, which would allow elucidation of the deterioration mechanism. The analysis results showed that the degradation products contain multiple components, including polymers of carbonate compounds and phosphate esters, which are formed via electrochemical and chemical reactions, resulting in remarkably reduced capacity. The results suggest that LC-QTOF/MS is a valuable technique for the degradation analysis of LIBs.

本文言語English
ページ(範囲)A2008-A2015
ジャーナルJournal of the Electrochemical Society
162
10
DOI
出版ステータスPublished - 2015

ASJC Scopus subject areas

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

フィンガープリント

「Liquid chromatography-quadruple time of flight mass spectrometry analysis of products in degraded lithium-ion 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