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DOE OSTI · 3012820

Role of electrolyte in silicon electrolyte interface stabilization

Lucht, Brett [Univ. of Rhode Island, Kingston, RI (United States)]
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Abstract

Transition metal ion dissolution was long thought to be the reason for poor cycling performance in Lithium ion batteries cycled to a high voltage, but since the anode SEI is electrochemically insulating, the mechanism for transition metal mediated SEI decomposition in unclear. Our results show that acidic species such as F 2 PO 2 H generation on the cathode side and their subsequent crossover reactions with the SEI components damaging it could more likely be a major factor to capacity fade.

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Lucht, Brett [Univ. of Rhode Island, Kingston, RI (United States)]. 2026-01-13. Role of electrolyte in silicon electrolyte interface stabilization. https://doi.org/10.2172/3012820

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