Multifunctional Silane Additive Enhances Inorganic–Organic Compatibility with F‐rich Nature of Interphase to Support High‐Voltage LiNi0.5Mn1.5O4//graphite Pouch Cells
Yuanqin Li,
Xiaoqing Li,
Lixia Liu
et al.
Abstract:A novel electrolyte additive, 3, 3, 3‐trifluoropropylmethyldimethoxysilane (TFPMDS), is first proposed to modify both the cathode and the anode of lithium‐ion batteries at the same time. Charging/discharging tests demonstrate that the electrolyte with 1 wt% TFPMDS not only greatly improves the capacity retention of LiNi0.5Mn1.5O4 (LNMO)//Li cell (29.6%→90.8%) and graphite//Li cell (68.1%→98.3%), but also successfully ensures the long‐term cycle stability of LNMO//graphite pouch cell at 4.9 V. Further electroch… Show more
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