Quantifying SEI Reaction Rate in the Presence and Absence of Mn 2+
Abstract
In this work, a methodology utilizing potentiostatic holds is developed for measuring side-reaction rates at graphite (Gr) electrodes. The influence of Mn 2+ on parasitic reactions is evaluated in the presence of various preformed solid-electrolyte interphases (SEI). Gr SEI preformation was carried out using vinylene carbonate (VC) or lithium difluoro(oxalato)borate (LiDFOB) as an additive. In addition, a highly fluorinated electrolyte, free of traditional non-fluorinated organic carbonates, was used. Parasitic current increases were observed for all preformed Gr SEIs when Mn 2+ was present. Of the preforming electrolytes, the VC-derived SEI showed the lowest parasitic currents both with and without Mn 2+ .
Fields of Study & Subjects
Advancements in Battery Materials
Advanced Battery Materials and Technologies
Advanced Battery Technologies Research
Publication details
- Journal / source
- Journal of The Electrochemical Society
- Volume
- 173
- Issue
- 4
- Pages
- 040510–040510
- Publication date
- 12 February 2026
- Language
- EN