聚苯乙烯-MOF复合衍生材料作锂离子电池负极的性能研究  

Study on Performance of Polystyrene-MOF Composite Derivative Material as Anode for Lithium Ion Battery

作　　者：闫浩然 邱帆 汪楷丽 张大鹏 陈君华 牛斐洱 YAN Hao-ran;QIU Fan;WANG Kai-li;ZHANG Da-peng;CHEN Jun-hua;NIU Fei-er(College of Chemistry and Materials Engineering,Anhui Science and Technology University,Bengbu 233030,China;Anhui Xinmin Glass Co.,Ltd.,Chuzhou 233100,China)

机构地区：[1]安徽科技学院化学与材料工程学院,安徽蚌埠233030 [2]安徽鑫民玻璃股份有限公司,安徽滁州233100

出　　处：《塑料科技》2020年第11期7-12,共6页Plastics Science and Technology

摘　　要：通过溶剂热法合成一种Ni基金属有机框架(MOF)材料,以碳化和硼化的措施对材料进行修饰,得到一种具有独特结构的八面体材料,用于锂离子电池负极时表现优异的电化学性能。在煅烧温度为500℃时,通过的电流密度为0.2 A/g,经过300圈的循环充放电后,比容量依然可以维持在477.09 mAh/g以上;同时在大电流密度循环条件下,也依然可以稳定在467.17 mAh/g的高可逆容量,且其放电效率一直维持到94.8%以上,这主要归因于材料结构的完整性和稳定性,为其提供了良好的循环性能。The solvothermal method was used to synthesize a Ni-based metal-organic framework(MOF)material,which was modified by carbonization and boronization measures.An octahedral material with unique structure was obtained,which showed excellent electrochemical performance when being used as anode materials of lithium ion battery.When the calcination temperature is 500℃,the current density is 0.2 A/g,the specific capacity can still be maintained above 477.09 mAh/g after 300 cycles charging and discharging.At the same time,it can be stable at 467.17 mAh/g in the high irreversible capacity and its discharge efficiency has been maintained to more than 94.8%.This is mainly due to the integrity and stability of the material structure,which provides good cycle performance.

关 键 词：聚苯乙烯 MOF 锂离子电池 负极材料 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业] TQ420.4