PREPARATION OF LIBOB BY IMPROVED SOLID-STATE METHOD AND PERFORMANCE OF LOW TEMPERATURE ELECTROLYTE BASED LIBOB

摘要：

LiBOB was synthesized by an improved solid-state method. Anhydrous H2C2O4 and Li2CO3 was mortared and preheated at 60 ℃ for 2 h, wherein B2O3 (molar ratio of H2C2O4:Li2CO3:B2O3 was 4:1:1) was added in several steps. The resulting mixture was again mortared to ensure full blending of the three ingredients. The mixed raw material was then maintained in a hot blast dryer in two steps: at 70 ℃ for 6 h and 100 ℃ for 3 h, whereby LiBOB with a purity of 99.6% by weight was obtained after two purification steps. Conductivities of the LiBOB electrolyte in various solvents was measured at temperatures ranging from-40.0 to 60.0 ℃. Results showed that the LiBOB electrolyte synthesized via this method had higher conductivities in a wide temperature range, whose performance met the requirements for Li-ion batteries.

关键词： LiBOB Li-ion battery Electrolyte Solid-State Method

作者: FAQIANG LI GUOFENG JIA ZHENGJUN PENG LIJUAN ZHANG XIANMING WEN YUAN ZHOU

作者单位: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China Graduate Univers 3Department of Chemistry and Life Sciences, Qinghai University for Nationalities, Xining, 810007, C

会议类型: 国际会议

会议名称: The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)

会议地点: 武汉

会议语种:英文

页码: 126-133

在线出版日期: 2010-05-02（万方平台首次上网日期，不代表论文的发表时间）