In Situ AFM Imaging of Solid Electrolyte Interfaces on HOPG with Ethylene Carbonate and Fluoroethylene Carbonate-Based Electrolytes

Cai Shen, Shuwei Wang, Yan Jin, Wei Qiang Han

Research output: Journal PublicationArticlepeer-review

101 Citations (Scopus)

Abstract

Chemical and morphological structure of solid electrolyte interphase (SEI) plays a vital role in lithium-ion battery (LIB), especially for its cyclability and safety. To date, research on SEI is quite limited because of the complexity of SEI and lack of effective in situ characterization techniques. Here, we present real-time views of SEI morphological evolution using electrochemical atomic force microscopy (EC-AFM). Complemented by an ex situ XPS analysis, fundamental differences of SEI formation from ethylene carbonate (EC) and fluoroethylene carbonate (FEC)-based electrolytes during first lithiation/delithiation cycle on HOPG electrode surface were revealed.

Original languageEnglish
Pages (from-to)25441-25447
Number of pages7
JournalACS applied materials & interfaces
Volume7
Issue number45
DOIs
Publication statusPublished - 26 Oct 2015
Externally publishedYes

Keywords

  • atomic force microscopy
  • electrochemistry
  • electrolyte
  • lithium-ion battery
  • solid electrolyte interfaces

ASJC Scopus subject areas

  • Materials Science (all)

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