Tris(trimethylsilyl)phosphate: A film-forming additive for high voltage cathode material in lithium-ion batteries

• Published in: Journal of power sources Vol. 248; pp. 1306 - 1311
• Main Authors: Yan, Guochun, Li, Xinhai, Wang, Zhixing, Guo, Huajun, Wang, Chao
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier 2014
• Subjects: Additives; Applied sciences; Cathodes; Cut-off; Cycles; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Electrochemical impedance spectroscopy; Electrolytes; Exact sciences and technology; High voltages; Lithium-ion batteries; Materials; X-ray photoelectron spectroscopy; Phosphates; Lithium ion batteries; Cobalt Oxides; Cathode; Nickel Oxides; Lithium Oxides; Film formation; Secondary cell; Tris(trimethylsilyl)phosphate; Electrode material; Phosphorus Compounds; Additive; Inorganic anion; High voltage; Lithium nickel cobalt manganese oxide; Manganese Oxides; Film forming properties

Tris(trimethylsilyl)phosphate (TMSP) is investigated as a novel film-forming additive for LiNi sub(0.5)Co sub(0.2)-Mn sub(0.3)O sub(2) cycling at high cut-off potential in LiPF sub(6)-based electrolyte. Linear sweep voltammetry (LSV) results reveal that TMSP oxidizes prior to the decomposition of ca...