3,4,9,10-苝四甲酸二酐(PTCDA)用作钠离子电池正极材料的电化学性能研究  

Studies on the electrochemical properties of 3,4,9,10-perylene tetracarboxylic dianhydride used as sodium ion battery electrode material

作　　者：褚荣荣 白延群 王存国[1] CHU Rong-rong;BAI Yan-qun;WANG Cun-guo(Key Laboratory of Rubber-plastics,Ministry of Education,Shandong Province Key Lab of Rubber-plastics,Qingdao University of Science and Technology,Qingdao 266042,China;Key Laboratory of Nanodevices and Applications&Collaborative Innovation Center of Suzhou Nano Science and Technology,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China)

机构地区：[1]青岛科技大学,橡塑材料与工程教育部重点实验室,山东省橡塑材料与工程重点实验室,山东青岛266042 [2]中科院苏州纳米技术与纳米仿生研究所,纳米器件及相关材料研究部,江苏苏州215123

出　　处：《分子科学学报》2020年第5期417-421,I0005,共6页Journal of Molecular Science

基　　金：山东省潍坊市高层次创新创业人才计划项目(潍办字2013-69);国家高端外国专家项目(中组部办公厅字2017-21);山东省教育厅基金资助项目(sdyjg19089)。

摘　　要：采用含有羰基的有机共轭分子3,4,9,10-苝四甲酸二酐(PTCDA)为正极,金属钠为负极组装了钠离子电池,用电化学交流阻抗及循环伏安法研究了其电化学性能.结果表明:PTCDA电极材料的离子电导率较低,大约为1.38×10^-6 S·cm^-1,不适合用于大电流密度充放电的电动汽车动力电池,但在小电流密度充放电状态下,具有良好的离子和电子传输性能及优异的钠离子脱/嵌性能;在电流密度为0.1 A·g^-1时,首次放电容量达120 mAh·g^-1,接近其理论比容量135 mAh·g^-1,有望应用于移动电话、笔记本电脑等小型便携式电子器件电源中.The sodium ion battery was assembled using the 3,4,9,10-perylene tetracarboxylic dianhydride(PTCDA) as the positive electrode material, and sodium metal as negative electrode. The electrochemical properties were studied by electrochemical impedance and cyclic voltammetry. The results show that the ionic conductivity of PTCDA electrode material is low about 1.38× 10^-6 S·cm^-1, which is not suitable for power batteries of electric vehicles using high current charge and discharge density. However, PTCDA electrode material has good ion and electron transport performance and excellent sodium ion deblocking properties under the condition of low current density. The first discharge capacity is 120 mAh·g^-1 as the current density is 0.1 A·g^-1, which close to its theoretical specific capacity of 135 mAh·g^-1. This is expected to be used as the power sources in mobile phones, laptops and the other small portable electronic devices.

关 键 词：3 4 9 10-苝四甲酸二酐 钠离子电池 正极材料 有机共轭羰基 电化学性能 

分 类 号：O646[理学—物理化学]