MMA接枝对锂、天然石墨界面的影响  

Influence of MMA-grafting on the lithium and natural graphite interface

作　　者：鞠华[1] 李志虎[2] 徐艳辉[2] 

机构地区：[1]苏州大学城市轨道交通学院,江苏苏州215131 [2]苏州大学化学电源研究所,江苏苏州215006

出　　处：《电池》2013年第4期219-221,共3页Battery Bimonthly

基　　金：江苏省自然科学基金(BK2009110)

摘　　要：分析了甲基丙烯酸(MMA)接枝到聚丙烯(PP)隔膜表面对金属锂界面稳定性的影响。未处理的PP隔膜,界面电阻随着放置时间的延长而增大,约45 d后达到稳定值;接枝MMA后,界面电阻在放置初期很快达到稳定值,约为320Ω·cm2,稳定一段时间后,增大到新的稳定值380Ω·cm2。分析了隔膜表面接枝MMA对天然石墨电极界面阻抗行为的影响。The influence of methyl methacrylate（MMA） -grafting into polypropylene（PP） separator on the lithium interface stability was studied. For PP separator without treating,the interface resistance increased as the shelving duration increased, reached to a constant after about 45 d. For PP separator grafted with MMA ,the interfacial resistance quickly reached to a constant value of about 320 Ω.cm2, after a duration interval ,increased to the new stable value of 380 Ω-cm2. The influence of MMA-grafting on the impedance response of natural graphite electrode interface was analyzed.

关 键 词：甲基丙烯酸(MMA) 隔膜 表面接枝 金属锂 天然石墨 

分 类 号：TM912.9[电气工程—电力电子与电力传动]