Direct measurement of the chemical reactivity of silicon electrodes with LiPF6-based battery electrolytes

Gabriel M. Veith, Loïc Baggetto, Robert L. Sacci, Raymond R. Unocic, Wyatt E. Tenhaeff, James F. Browning

Research output: Contribution to journalArticlepeer-review

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Abstract

We report the first direct measurement of the extent of the spontaneous non-electrochemically driven reaction between a lithium ion battery electrode surface (Si) and a liquid electrolyte (1.2 M LiPF6-3:7 wt% ethylene carbonate:dimethyl carbonate). This layer is estimated to be 35 Å thick with a SLD of ∼ 4 × 10−6 Å−2 and likely originates from the consumption of the silicon surface.

Original languageEnglish
Pages (from-to)3081-3084
Number of pages4
JournalChemical Communications
Volume50
Issue number23
DOIs
StatePublished - Feb 20 2014

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