A study of tri(ethylene glycol)-substituted trimethylsilane (1NM3)/LiBOB as lithium battery electrolyte

详细信息    查看全文

• 作者：Jian Dong ; Zhengcheng Zhang ; Yuki Kusachi ; Khalil Amine
• 关键词：Silane ; Oligo(ethylene glycol) ; 1NM3 ; Electrolytes ; LiBOB ; Lithium-ion batteries
• 刊名：Journal of Power Sources
• 出版年：2011
• 出版时间：15 February 2011
• 年：2011
• 卷：196
• 期：4
• 页码：2255-2259
• 全文大小：385 K

文摘

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 LiNi_1/3Co_1/3Mn_1/3O₂ as the positive electrode and MAG graphite as the negative electrode has shown excellent cyclability using 1NM3-LiBOB as electrolyte.