Li/MnO_2电池电解液阻燃剂的研究  

The Study of Flame Retardant Additives in the Electrolytes for Li/MnO_2 Battery

作　　者：魏婷如[1] 高军[1] 汪红萍[1] 曾维熙[1] 杨勇[1] 

机构地区：[1]厦门大学化学化工学院化学系,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2008年第A02期220-223,共4页Journal of Xiamen University：Natural Science

基　　金：国家基础科学人才培养基金(J0630429)资助

摘　　要：为了降低Li/MnO2电池电解液的可燃性、提高电池的使用安全性,本文研究了以DMMP(Dimethyl methylphospho-nate,甲基膦酸二甲酯)和TCEP(Tri(2-chloroethyl)phosphate,磷酸三(2-氯乙基)酯)作为阻燃添加剂,LiClO4为电解质盐的新型电解液,分别比较了添加DMMP和TCEP对电解液阻燃性、电池交流阻抗和放电性能的影响.Dimethyl methyl phosphonate （DMMP） and Tri （2-ch/oroethyl） phosphate （TCEP） were investigated as flame retardant additives in a 1. 0 mol/L LiClO4/PC ＋ DME ＋ DOL ＋ MA electrolyte systcrm. The flammability, AC Impedance and elcctrochemiscal perfarmance of electrolytes revealed that the addison of DMMP,to electrolytcs provided a more significant suppression in flamunability of electrolyre and caused less degradation on electrochemical performance than on TCEP. The discharge polarization curves for Li/MnO2 batteries using 1 mol/L LiClO4/PC ＋ DME ＋ DOL ＋ MA with DMMP at different temperatures were also studied. DMMP was found to be a better flame, retardant additive in improving the safty of Li/MnO2 batteries.

关 键 词：LI/MNO2电池 电解液 阻燃剂 DMMP TCEP 

分 类 号：TM912.9[电气工程—电力电子与电力传动]