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 language | English |
---|---|
Pages (from-to) | 25441-25447 |
Number of pages | 7 |
Journal | ACS Applied Materials and Interfaces |
Volume | 7 |
Issue number | 45 |
DOIs | |
Publication status | Published - 26 Oct 2015 |
Externally published | Yes |
Keywords
- atomic force microscopy
- electrochemistry
- electrolyte
- lithium-ion battery
- solid electrolyte interfaces
ASJC Scopus subject areas
- General Materials Science