Silicon-based electrolyte has emerged as a primary candidate for the development of large lithium-ion batteries for electric vehicle (EV) and other systems in which safety is a primary consideration Comparing to the electrolyte used in the conventional lithium-ion batteries which are flammable volatile and highly reactive organic carbonate solvents silicon-based electrolytes are thermally and chemically stable less flammable and environmental benign Tri(ethylene glycol)-substituted trimethylsilane (1NM3) was identified as a focus of investigation due to its high conductivity and low viscosity We present the results of a systematic investigation of the 1NM3-based electrolytes with lithium bis(oxalate)borate (LiBOB) salt including temperature dependent ionic conductivity and lithium cell performance Lithium-ion cell with LiNi1/3Co1/3Mn1/3O2 as the positive electrode and MAC graphite as the negative electrode has shown excellent cyclability using 1NM3-LiBOB as electrolyte (C) 2010 Elsevier B V All rights reserved