期刊
NANOMATERIALS
卷 12, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/nano12040692
关键词
silica-based anode; Ketjen Black; electrochemical properties; lithium-ion battery
SiO2 aerogels were prepared using a sol-gel method, and the effects of different conductive agents on their electrochemical performance were systematically studied. Results showed that SiO2 anode with KB as the conductive agent exhibited better cycling and rate performance.
In this paper, SiO2 aerogels were prepared by a sol-gel method. Using Ketjen Black (KB), Super P (SP) and Acetylene Black (AB) as a conductive agent, respectively, the effects of the structure and morphology of the three conductive agents on the electrochemical performance of SiO2 gel anode were systematically investigated and compared. The results show that KB provides far better cycling and rate performance than SP and AB for SiO2 anode electrodes, with a reversible specific capacity of 351.4 mA h g(-1) at 0.2 A g(-1) after 200 cycles and a stable 311.7 mA h g(-1) at 1.0 A g(-1) after 500 cycles. The enhanced mechanism of the lithium storage performance of SiO2-KB anode was also proposed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据