Direct visualization of initial SEI morphology and growth kinetics during lithium deposition by in situ electrochemical transmission electron microscopy.

نویسندگان

  • Robert L Sacci
  • Nancy J Dudney
  • Karren L More
  • Lucas R Parent
  • Ilke Arslan
  • Nigel D Browning
  • Raymond R Unocic
چکیده

Deposition of Li is a major safety concern existing in Li-ion secondary batteries. Here we perform the first in situ high spatial resolution measurement coupled with real-time quantitative electrochemistry to characterize SEI formation on gold using a standard battery electrolyte. We demonstrate that a dendritic SEI forms prior to Li deposition and that it remains on the surface after Li electrodissolution.

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عنوان ژورنال:
  • Chemical communications

دوره 50 17  شماره 

صفحات  -

تاریخ انتشار 2014