Examining the Solid Electrolyte Interphase on Binder-Free Graphite Electrodes

By A. Xiao, Li Yang, B. Lucht, Sun‐Ho Kang, D. Abraham. 2009

157 citations recorded by the source corpus.

The solid electrode interphase (SEI) on graphite electrodes is important to the performance, calendar life, and safety characteristics of lithium-ion cells. This article examines the SEI formed on binder-free graphite electrodes prepared by electrophoretic deposition. X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis data were obtained on electrodes cycled in cells containing four electrolytes comprising ethylene carbonate: ethylmethyl carbonate (3:7 by weight) solvent and 1.2 M LiPF{sub 6}, 1 M LiF{sub 2}BC{sub 2}O{sub 4}, 1 M LiBF{sub 4}, or 0.7 M LiB(C{sub 2}O{sub 4}){sub 2} salt. Our observations suggest that, in addition to solvent reduction, the reduction of electrolyte salts plays an important role in SEI formation. Mechanisms to account for the formation of these SEI constituents are included in the article.

Subfields: Automotive Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/f75ae2062cc2fa2b45f53a0ec9be454de42e8dc5

Citations in the corpus

• Investigation of the Solid Electrolyte Interphase Formation at Graphite Anodes in Lithium-Ion Batteries with Electrochemical Impedance Spectroscopy (2017, unknown): “With help of the Arrhenius equation: ∙ ∆ (6)”