废旧橡胶轮胎热裂解产物用作锂(离子)电池碳阳极材料性能研究  

Studies on the performance of carbon anode materials pyrolyzed by scrap rubber tires used for lithium (ion) battery

作　　者：曲锴鑫 李雪[1] 白延群 谢吉国 樊文琪 宋鹏豪 王存国[1] QU Kai-xin;LI Xue;BAI Yan-qun;XIE Ji-guo;FAN Wen-qi;SONG Peng-hao;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)

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

出　　处：《分子科学学报》2019年第5期411-416,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)

摘　　要：应用废旧橡胶轮胎在惰性气体保护下进行热裂解,经进一步处理得到了高纯的碳材料,通过扫描电子显微镜(SEM)和红外光谱(FTIR)等结构表征,表明该裂解碳材料为多孔结构,具有较高的比表面积和电导率,可吸附和嵌入更多的锂离子.用该裂解碳材料做正极、金属锂做负极组成锂(离子)电池进行电化学性能测试,结果表明:该电极材料呈现较小的交流阻抗,首次放电容量达到567mAh·g^-1,远远高于目前商品化的石墨电极的理论比容量372 mAh·g^-1,充放电循环寿命测试等结果令人满意,有望取代石墨电极材料应用于电动汽车等动力锂(离子)电池中.The scrap rubber tires were pyrolyzed under inert gas atmosphere,and the pure carbon materials were obtained by further treatment.The structure of the pyrolytic carbon materials was characterized by the methods of SEM,FTIR et al.It showed that the pyrolytic carbon materials had porous structures and large specific surface area as well as higher conductivity.The lithium batteries had been set up by pyrolytic carbon material as positive electrode and lithium metal as negative electrode.The electrochemical results showed that the new carbon materials exhibited small AC impedance.The first discharge capacity got to 567mAh·g^-1,which was much higher than the theoretical specific capacity of commercial graphite(372mAh·g^-1).The results of charge-discharge cycle life et al.are both satisfactory.Therefore,it is hopeful that the pyrolytic carbon materials can replace graphite and be used in lithium(ion)batteries for electric vehicles.

关 键 词：废旧橡胶轮胎 热裂解 锂(离子)电池 碳材料 阳极 聚异戊二烯 

分 类 号：O646[理学—物理化学]