Decomposition Reactions of Anode Solid Electrolyte Interphase (SEI) Components with LiPF6
| Autor: | Rahul Suryakant Kadam, Brett L. Lucht, Alex D. MacIntosh, Bharathy S. Parimalam |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
020209 energy
Lithium carbonate Inorganic chemistry chemistry.chemical_element Infrared spectroscopy 02 engineering and technology Electrolyte 021001 nanoscience & nanotechnology Lithium-ion battery Surfaces Coatings and Films Electronic Optical and Magnetic Materials Anode chemistry.chemical_compound General Energy chemistry 0202 electrical engineering electronic engineering information engineering Lithium Dicarbonate Physical and Theoretical Chemistry Dimethyl carbonate 0210 nano-technology |
| Zdroj: | The Journal of Physical Chemistry C. 121:22733-22738 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.7b08433 |
| Popis: | The anode solid electrolyte interface (SEI) on the anode of lithium ion batteries contains lithium carbonate (Li2CO3), lithium methyl carbonate (LMC), and lithium ethylene dicarbonate (LEDC). The development of a strong physical understanding of the properties of the SEI requires a strong understanding of the evolution of the SEI composition over extended timeframes. The thermal stability of Li2CO3, LMC, and LEDC in the presence of LiPF6 in dimethyl carbonate (DMC), a common salt and solvent, respectively, in lithium ion battery electrolytes, has been investigated to afford a better understanding of the evolution of the SEI. The residual solids from the reaction mixtures have been characterized by a combination of X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy with attenuated total reflectance (IR-ATR), while the solution and evolved gases have been investigated by nuclear magnetic resonance (NMR) spectroscopy and gas chromatography with mass selective detection (GC-MS). The thermal deco... |
| Databáze: | OpenAIRE |
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