Abstract
This article probes one of the key fundamental factors that determines the safety and life of Lithium-ion batteries known as “solid electrolyte interphase” (SEI). In this work, we provided a mechanistic picture on how the SEI evolves with battery cycling by investigating the SEI chemical composition and topography by using state-of-the-art tip-enhanced Raman spectroscopy (TERS).
Original language | English |
---|---|
Pages (from-to) | 2001-2019 |
Number of pages | 19 |
Journal | Joule |
Volume | 3 |
Issue number | 8 |
DOIs | |
State | Published - Aug 21 2019 |
Funding
This work is supported by the U.S. Department of Energy's Vehicle Technologies Office under the Silicon Electrolyte Interface Stabilization (SEISta) Consortium directed by Brian Cunningham and managed by Anthony Burrell. We thank Drs. Ilia N. Ivanov, Sergei V Kalinin, and Vera Bocharova for the fruitful discussion. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). J.N. conceived the original idea. J.N. and G.Y. organized the project. G.Y. and J.N. drafted the manuscript. D.N.V. A.S. and G.Y. designed and performed the TERS experiments. G.Y. conducted the electrochemical and AFM, SEM measurements on a-Si anodes, and FDTD simulations. G.Y. and X.L. conducted PCA-MCR analysis. T.H. and K.P. conducted the M.D. simulation and DFT calculations. R.E.R. M.N. and G.M.V. assisted with the electrochemical measurements and data analysis a-Si thin film anode preparation. All authors contributed to the editing of the manuscript. The authors declare no competing interest. This work is supported by the U.S. Department of Energy's Vehicle Technologies Office under the Silicon Electrolyte Interface Stabilization (SEISta) Consortium directed by Brian Cunningham and managed by Anthony Burrell. We thank Drs. Ilia N. Ivanov, Sergei V Kalinin, and Vera Bocharova for the fruitful discussion. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).
Keywords
- FDTD simulation
- SEI
- TERS mapping
- amorphous silicon anode
- batteries
- nanomosaic-multilayer model
- nanoscale heterogeneity
- non-gap mode TERS
- solid electrolyte interphase
- tip-enhanced Raman spectroscopy