通过简单的刮涂工艺，将含有氯化亚锡、聚丙烯腈（PAN）和聚甲基丙烯酸甲酯（PMMA）的二甲基甲酰胺（DMF）溶液涂覆在铜箔表面，然后在真空下煅烧，制备出具有三维网络结构的SnO
2-C复合涂层，对其微观结构进行了表征，并对该网络结构SnO
2-C复合涂层一体化负极材料的性能进行了测试。结果表明：该复合涂层具有由宽度为0.1~1
μm的碳基枝条相互连接而形成的连续三维网络结构，该碳基枝条由无定型结构的碳基体、尺寸为10~150 nm的SnO
2纳米粒子和尺寸为1~5 nm的微孔组成；当该复合涂层直接用作锂离子电池的负极时，在50 mA·g
-1电流密度下经过100次循环后其比容量为642 mAh·g
-1，在此循环过程中未出现比容量衰减的现象，在10 A·g
-1电流密度下其比容量仍为50 mA·g
-1电流密度下比容量的43%，该复合涂层表现出良好的电化学性能。
所属栏目
试验研究上海市产学研合作计划项目（沪CXY-2015-017）；上海市大学生创新项目（cs1605003）
收稿日期
2016/9/272017/9/21
作者单位
王娜:上海工程技术大学材料工程学院, 上海 201620
杨琪:上海工程技术大学材料工程学院, 上海 201620
崔帅:上海工程技术大学材料工程学院, 上海 201620
杨露:上海工程技术大学材料工程学院, 上海 201620
备注
王娜(1994-),女,甘肃白银人,本科生
引用该论文:
WANG Na,YANG Qi,CUI Shuai,YANG Lu.Microstructure and Performance of SnO2-C Composite Coating with Network Structure Used for Lithium Ion Batteries Anode[J].Materials for mechancial engineering,2017,41(11):23～28
王娜,杨琪,崔帅,杨露.锂离子电池负极用网络结构SnO2-C复合涂层的微观结构及其性能[J].机械工程材料,2017,41(11):23～28
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