In-situ optical microscope morphology observation of lithium electrodeposited in room temperature ionic liquids containing aliphatic quaternary ammonium cation

Hikaru Sano, Hikari Sakaebe, Hajime Matsumoto

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The behavior of lithium (Li) electrodeposition in room temperature ionic liquids (RTILs) containing aliphatic quaternary ammonium cation was investigated by in-situ optical microscope observation. As a result, round shape Li deposits were obtained after deposition in all cases with vinylene carbonate (VC) as an additive, while most deposits were dendritic without VC. AC impedance spectroscopic measurements indicated that the dendrite growth was suppressed when a surface film with large resistance was generated. The dendrite suppression effect by VC addition was confirmed in the Pyl4[TFSA]-based and TMHA[TFSA]-based electrolytes as well as in the PP13[TFSA]-based electrolyte.

Original languageEnglish
Pages (from-to)777-779
Number of pages3
JournalElectrochemistry
Volume80
Issue number10
DOIs
Publication statusPublished - Oct 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electrochemistry

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