材料科学
阳极
乳状液
乳液聚合
聚合物
石墨
锂(药物)
涂层
电池(电)
电极
水溶液
化学工程
导电聚合物
硅
锂离子电池
导电体
锂电池
复合材料
聚合
离子
有机化学
化学
冶金
离子键合
医学
量子力学
物理
工程类
功率(物理)
物理化学
内分泌学
作者
Tianyue Zheng,Ting Zhang,Mauricio Solís de la Fuente,Gao Liu
标识
DOI:10.1016/j.eurpolymj.2019.02.041
摘要
To combine the advantages of conductive polymer binders and aqueous battery electrode coating processes, a versatile emulsion polymerization method is developed to prepare conductive polymer binder emulsions in water for lithium ion battery applications. These polymer emulsions are used as-is as the binder for silicon containing anode materials. In the resulting electrodes, the binder particles and the active material particles are adhered through “point contact”. Increasing the content of aromatic units in the polymer binders can improve the battery performance. After optimization of the material composition in the electrodes, the batteries can achieve about 880 mAh·g−1 initial capacity for graphite/silicon composite materials at a ratio of 73/15 with about 75% capacity retention after 200 cycles.
科研通智能强力驱动
Strongly Powered by AbleSci AI