糖基双碳源磷酸铁锂电池的制备及其性能研究  

Investigation on the preparation and performance of lithium iron phosphate battery with binary saccharide-based carbon source

作　　者：王希栋 张长利[1] 王树文[1] 吴德鹏[2] 郭雪辉 刘振新[2] 邢宇[2] 

机构地区：[1]东北农业大学电气与信息学院,哈尔滨150030 [2]郑州轻工业学院材料与化学工程学院,河南省表界面科学重点实验室,郑州450000

出　　处：《化工新型材料》2017年第12期103-106,共4页New Chemical Materials

基　　金：河南省高等学校青年骨干教师资助计划项目(#2013GGJS-112);河南省留学回国人员科研资助项目(豫留学函[2011]27号文);郑州市科技计划项目(#10PTGG381-2);郑州轻工业学院博士科研基金(#000510)

摘　　要：将葡萄糖和蔗糖作为糖基碳源,以FePO_4中间体法制备了LiFePO_4/C复合材料,探讨了单/双碳源对比、碳源配比以及研磨工艺对电池电性能的影响,并采用X射线衍射、场发射扫描电镜和高分辨透射电镜等表征方法对LiFePO_4/C复合材料进行分析。LiFePO_4电池的放电比容量与蔗糖残留碳占总残留碳的质量分数之间呈近似"火山型"的关系。当葡萄糖残留碳与蔗糖残留碳的质量比约为1∶1时,所制LiFePO_4/C电池具有最优的电性能。There is considerable literature about lithium iron phosphate batteries with unary carbon sources.However,the literature on lithium iron phosphate batteries with binary carbon sources is rare.LiFePO4/C composites were prepared via the route of FePO4 intermediate.Glucose and sucrose were employed as saccharide-based carbon sources.The effects of unary vs.binary carbon sources,ratio of carbon sources as well as grinding process on the electrical performance of batteries were investigated.LiFePO4/C composites were investigated by XRD,SEM and TEM.The discharge capacity of LiFePO4/C exhibited a similar＂volcano＂-type relationship vs.mass percentage of sucrosebased residue carbon in whole residue carbon.The best electrical performance of LiFePO4/C was achieved at the weight ratio of glucose-based residual carbon and sucrose-based residual carbon of 1∶1.

关 键 词：电池 磷酸铁锂 双碳源 葡萄糖 蔗糖 

分 类 号：TM912[电气工程—电力电子与电力传动]