In Situ Atomic Force Microscopic Studies of LiFSI-[Py1,4]FSI Interfacial Nanostructure on Au(111): Solid Electrolyte Interphase and Lithium Underpotential Deposition

2021 ◽  
Author(s):  
Shikun Liu ◽  
Tong Cui ◽  
Timo Carstens ◽  
Jiupeng Zhao ◽  
Natalia Borisenko ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Underpotential Deposition ◽  
Atomic Force ◽  
Microscopic Studies

In Situ Measurement of Solid Electrolyte Interphase Evolution on Silicon Anodes Using Atomic Force Microscopy

2016 ◽  
Vol 6 (12) ◽  
pp. 1600099 ◽  
Author(s):  
Insun Yoon ◽  
Daniel P. Abraham ◽  
Brett L. Lucht ◽  
Allan F. Bower ◽  
Pradeep R. Guduru
Keyword(s):  
Atomic Force Microscopy ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
In Situ Measurement ◽  
Force Microscopy ◽  
Silicon Anodes ◽  
Atomic Force

scholarly journals Solid-electrolyte interphase nucleation and growth on carbonaceous negative electrodes for Li-ion batteries visualized with in situ atomic force microscopy

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Sergey Yu. Luchkin ◽  
Svetlana A. Lipovskikh ◽  
Natalia S. Katorova ◽  
Aleksandra A. Savina ◽  
Artem M. Abakumov ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Nucleation And Growth ◽  
Li Ion Batteries ◽  
Force Microscopy ◽  
Electrode Potentials ◽  
Atomic Force ◽  
Li Ion

Abstract Li-ion battery performance and life cycle strongly depend on a passivation layer called solid-electrolyte interphase (SEI). Its structure and composition are studied in great details, while its formation process remains elusive due to difficulty of in situ measurements of battery electrodes. Here we provide a facile methodology for in situ atomic force microscopy (AFM) measurements of SEI formation on cross-sectioned composite battery electrodes allowing for direct observations of SEI formation on various types of carbonaceous negative electrode materials for Li-ion batteries. Using this approach, we observed SEI nucleation and growth on highly oriented pyrolytic graphite (HOPG), MesoCarbon MicroBeads (MCMB) graphite, and non-graphitizable amorphous carbon (hard carbon). Besides the details of the formation mechanism, the electrical and mechanical properties of the SEI layers were assessed. The comparative observations revealed that the electrode potentials for SEI formation differ depending on the nature of the electrode material, whereas the adhesion of SEI to the electrode surface clearly correlates with the surface roughness of the electrode. Finally, the same approach applied to a positive LiNi1/3Mn1/3Co1/3O2 electrode did not reveal any signature of cathodic SEI thus demonstrating fundamental differences in the stabilization mechanisms of the negative and positive electrodes in Li-ion batteries.

In situ atomic force microscope observing the effect of vinylene carbonate on the formation of solid-electrolyte interphase layer during the initial cycle

2017 ◽  
Vol 10 (05) ◽  
pp. 1750052 ◽  
Author(s):  
Lingpiao Lin ◽  
Kai Yang ◽  
Haibiao Chen ◽  
Feng Pan
Keyword(s):  
Solid Electrolyte ◽  
Atomic Force Microscope ◽  
Ethylene Carbonate ◽  
Solid Electrolyte Interphase ◽  
Lithium Intercalation ◽  
Vinylene Carbonate ◽  
Atomic Force ◽  
Sei Layer ◽  
Initial Cycle

We used in situ atomic force microscope to observe the evolution of the solid-electrolyte interphase (SEI) layer on the graphite surface during the initial lithium intercalation process. We found that 1% vinylene carbonate (VC) in the electrolyte can promote the formation of an initial SEI at a higher potential by VC reduction. VC also restrained the reduction of ethylene carbonate (EC) and as a consequence, it can affect the morphology of the SEI formed.

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