车用锂离子电池隔膜特性的试验研究  

An Experimental Study on the Characteristics of Separator Film in Lithium Ion Battery for Vehicles

作　　者：王丹[1,2] 张克金[2] 许德超[2] 王双[3] 那辉[3] 张国[1] 

机构地区：[1]吉林大学材料科学与工程学院,长春130011 [2]第一汽车集团公司技术中心,长春130011 [3]吉林大学化学学院,长春130011

出　　处：《汽车工程》2011年第10期894-897,879,共5页Automotive Engineering

摘　　要：选取了4种锂离子电池的商品化隔膜产品,采用傅立叶变换红外光谱仪、X射线衍射仪和扫描电子显微镜等手段,对隔膜材料的组成和结构特性进行表征;采用热重分析仪和差示扫描量热仪,对隔膜材料的热性能进行分析;同时,进行隔膜材料的机械性能、耐热性能和吸液性的试验。结果表明,非聚烯烃类隔膜具有较好的耐热性能,但机械性能较差。Four kinds of commercialized separator film product for lithium-ion battery are selected,the composition and structural features of separator film materials are characterized by means of FT-IR spectrometer,XRD and SEM,and their thermal performances are analyzed by TGA and DSC.In addition,the mechanical and heat-resistant performances,as well as liquid absorbency of separator film material are also tested.The results show that non polyolefin separator film has better heat-resistant performance,but poorer mechanical performance.

关 键 词：锂离子电池 隔膜 热性能 安全性 

分 类 号：U463.633[机械工程—车辆工程] TM912[交通运输工程—载运工具运用工程]