Scanning Electrochemical Microscopy Applied to the Investigation of Lithium (De-)Insertion in TiO2

作者：Zampardi Giorgia; Ventosa Edgar; La Mantia Fabio^*; Schuhmann Wolfgang

来源：Electroanalysis, 2015, 27(4): 1017-1025.

DOI：10.1002/elan.201400613

• Feedback mode
• Lithium-ion batteries
• SECM
• SEI formation

The electrochemical insertion of lithium ions in anatase TiO2 nanoparticles was investigated by scanning electrochemical microscopy in the feedback mode of operation using ferrocene as reporting redox couple at different potentials in presence and absence of lithium ions. By fixing the position of the tip while performing cyclic voltammetry at the TiO2 paste electrode, the formation of the solid electrolyte interphase (SEI) on the surface of titania was followed in situ. Different scan rates have been used to study the kinetics of SEI formation.

• 出版日期2015-4