原位合成壳聚糖复合炭材料及其在铅碳电池中的应用  

In-situ Synthesis of Generated Composite Chitosan Carbon and Its Application in Lead-carbon Battery

作　　者：云亮[1,2,3] 刘峥 李海莹[1,2] 王浩[1,2] 钟寒阳[1,2] YUN Liang;LIU Zheng;LI Hai-ying;WANG Hao;ZHONG Han-yang(Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials,Guilin University of Technology,Guangxi 541004,Guangxi,China;College of Chemical and Biological Engineering,Guilin University of Technology,Guangxi 541004,Guangxi,China;Key Laboratory of Graphene Technologies and Applications of Zhejiang Province,Ningbo Institute of Materials Technology ＆Engineering（NIMTE）,Chinese Academy of Sciences,Ningbo 315201,Zhejiang,China)

机构地区：[1]桂林理工大学广西电磁化学功能物质重点实验室,广西桂林541004 [2]桂林理工大学化学与生物工程学院,广西桂林541004 [3]中国科学院宁波材料技术与工程研究所浙江省石墨烯应用研究重点实验室,浙江宁波315201

出　　处：《材料工程》2018年第8期57-63,共7页Journal of Materials Engineering

基　　金：国家自然科学基金项目(21266006);广西自然科学基金项目(2016GXNSFAA380109)

摘　　要：以壳聚糖、氧化铅为原料,利用原位合成方法,制备复合炭材料。通过X射线粉末衍射仪、扫描电镜和电子能谱仪、比表面仪、拉曼光谱仪等方法对复合炭材料进行表征,结果表明:壳聚糖为碳源的复合炭材料具有非晶态结构,孔径分布集中在5~10nm,比表面积高达487.4m2/g,适合作为Pb-C电池负极材料使用;将原位合成壳聚糖复合炭材料或者炭黑材料与析氢抑制剂、黏结剂、膨胀剂等电池添加剂混合成涂膏,分别组装成Pb-C模拟电池,利用电化学测量技术和电池性能测试系统评价Pb-C电池电化学性能,结果表明:以原位合成壳聚糖复合炭材料作为负极材料制成的Pb-C电池负极板,比以炭黑为碳源制备的负极材料具有更好的电化学性能,电阻较小,其循环伏安测试的比电容为162.9F/g,首次放电平台更长,最终容量达到108.72mAh/g,壳聚糖为碳源时比容量为理论比容量的98%,且10000次循环几乎没有衰减。Chitosan,extenders anointed and in-situ synthesis method were used to synthesize anodecomposite lead-carbon batteries.SEM,EDS,BET and RM were used to characterize and analyze the morphology of carbon materials.The results show that chitosan-carbon has non-crystal structures.Its pore size distribution is between 5-10 nm.Specific surface area reaches to 487.4 m^2/g.The negative composite material electrode is mixed with a conductive agent to produce pastel.Pb-C analog battery was assembled.Electrochemical workstation is used to test chronoamperometry curves,electrochemical impedance spectroscopy so as to evaluate the possibility of in-situsynthesis anode composite material and its potential value of practical application.Electrochemical testing results show that the Pb-C negative plate,which is made by anode composite carbon material as the carbon source of in-situ synthesis of chitosan,possessing better electrochemical performance and smaller resistance.Its specific capacitance of cyclic voltammogram test is 162.9 F/g with longer first discharge platform,the ultimatecapacity reaches to 108.722 mAh·g^-1 when chitosan as carbon source,the specific capicity is 98% of the theoretical capacity.After 1000 times of cycle there is almost no decay in capacity.

关 键 词：铅碳电池 负极材料 原位合成法 复合炭材料 

分 类 号：O646.54[理学—物理化学]