Gram-Scale Production of Graphene Powder via a Quasi-physical Process and Its Application in Electrode Material for Lithium-Ion Battery
Gram-Scale Production of Graphene Powder via a Quasi-physical Process and Its Application in Electrode Material for Lithium-Ion Battery
复制标题
准物理法克级规模生产石墨烯粉体及其在锂离子电池电极材料中的应用
DOI：
10.1002/adem.201800891
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发表时间：
2019
影响因子：
3.6
通讯作者：
Yang Sen
中科院分区：
文献类型：
--
作者：
Zhang Yin;Zhu Xi;Xu Minwei;Zhou Chao;Song Xiaoping;Yang Sen
Graphene powder is an attractive conducting additive for the electrodes of lithium‐ion battery (LIB). However, the practical application of graphene is hampered by the lack of reliable methods for its production. Here, the authors report a promising method for the synthesis of graphene powder, which exhibits the functionalities both in gram‐scale production and high‐quality products. As a validation, the authors show that the introduced graphene matrix can greatly improve the electrochemical activity and cycle stability of the Co3O4nanoparticles. Typically, when 40 wt% of graphene is introduced, the obtained Co3O4/graphene nanocomposite can stably cycle up to more than 50 cycles with a reversible capacity above 530 mAh g−1. Simultaneously, a limited initial irreversible capacity less than 40 mAh g−1is also achieved. The attainment of such properties in Co3O4/graphene nanocomposite offers the prospects for the practical applications of graphene in industry for better LIBs.
