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

作者：Veith Gabriel M^*; Baggetto Loic; Sacci Robert L; Unocic Raymond R; Tenhaeff Wyatt E; Browning James F

来源：Chemical communications, 2014, 50(23): 3081-3084.

DOI：10.1039/c3cc49269a

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 angstrom thick with a SLD of similar to 4 x 10(-6) angstrom(-2) and likely originates from the consumption of the silicon surface.

• 出版日期2014