title: Direct visualization of initial SEI morphology and growth kinetics during lithium deposition by in situ electrochemical transmission electron microscopy.
abstract: 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.
authors.affiliation: Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. saccirl@ornl.gov.
authors.forename: Robert L
authors.initials: RL
authors.lastname: Sacci
authors.forename: Nancy J
authors.initials: NJ
authors.lastname: Dudney
authors.forename: Karren L
authors.initials: KL
authors.lastname: More
authors.forename: Lucas R
authors.initials: LR
authors.lastname: Parent
authors.forename: Ilke
authors.initials: I
authors.lastname: Arslan
authors.forename: Nigel D
authors.initials: ND
authors.lastname: Browning
authors.forename: Raymond R
authors.initials: RR
authors.lastname: Unocic