第 35 卷第 3 期Vol. 35 No. 3
2005 年 6 月Jun 2005

所属栏目:其它

聚丙烯酸锂/锂盐聚合物电解质的研究
卢翠红; 陈平; 董君英; 李丽峰(长沙理工大学化学与环境工程系; 湖南长沙)
摘 要:以丙烯酸和氢氧化锂为原料用溶液聚合法合成聚丙烯酸锂(PAALi),将其熔于低共熔盐(一定比例的LiNO3-LiOOCCH3混合物)中得到新型高分子固体电解质(SPE),用IR技术进行了表征,讨论了影响合成PAALi工艺及新型固体电解质电导率的主要因素,在Li-NO3-LiOOCCH3质量比为1∶1时,将其按质量百分比80∶20与聚丙烯酸锂混合均匀并熔融,得到的电解质其室温离子电导率可达2×10-5S.cm-1.
关键词:聚合物电解质; 离子电导率; 锂离子电池
中图分类号:TQ317  文献标识码:A  文章编号:1009-9212(2005)03-0046-03
Synthesis and Identification of Electrolyte of poly(lithium acrylate)/lithium salts polymer
LU Cui-hong; CHEN Ping; DONG Jun-ying; LI Li-Feng(Changsha University of Science and Technology; Changsha 410077; China)
Abstract:The results of preliminary studies of a new polymer electrolyte based on poly(lithium acrylate)-PAALi, with low-melting-point eutectic lithium salts consisted of lithium nitrate and lithium acetate were described. The solution polymerization of PAALi was prepared from crylic acid and LiOH under optimum conditions of initiator concentration 0.2%(w%), monomer concentration 16%(w%), polymerization time 2 h, polymerization temperature 80℃. The ionic conductivity of PAALi was measured at range of 10~(-9)~10~(-10...
Key words:polymer electrolyte; ionic conductivity; lithium-ion batteries
收稿日期:2005-04-10
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