添加表面活性剂对中间相炭微球表面形貌和电性能的影响  

Effects of ionic-surfactant on the morphology and electrochemical performance of mesocarbon microbeads

作　　者：张波[1] 刘红光[1] 叶学海[1] 宫毓鹏[1] 沈鹏[1] 董广前[1] 时洁[1] 

机构地区：[1]中海油天津化工研究设计院新材料重点实验室,天津300131

出　　处：《炭素技术》2012年第1期6-8,21,共4页Carbon Techniques

摘　　要：通过将中温煤沥青在400—450℃下进行聚合可以得到中间相炭微球（MCMB），但由于中温煤沥青中含有喹啉不溶物（QI），MCMB在生成过程中QI会附着在MCMB表面，造成MCMB表面粗糙，进而影响了MCMB的电化学性能。通过在中温煤沥青中添加表面活性剂可以有效降低MCMB表面能，减少QI的附着，提高MCMB表面光滑度，从而提高了MCMB的电化学性能。Mesocarbon Microbeads （MCMB） were prepared from medium coal-tar pitch at 400~450 ~C. However, the Quinoline- Insoluble （QI） contents in coal-tar pitch will be adhered on the surface of MCMB during the chemical process, which will deteriorate the electrochemical performance of MCMB as anode material for lithium-ion batteries. Ionic-surfactant as additive in coal-tar pitch can lower the surface-energy of MCMB and decrease the adhesion of QI. Therefore, the smoothness of surface and electrochemical performance of MCMB were improved effectively.

关 键 词：表面活性剂 中间相炭微球(MCMB) QI 光滑度 

分 类 号：TQ522.63[化学工程—煤化学工程]