期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 586, 期 -, 页码 381-390出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2020.10.102
关键词
Solvothermal method; Ni metal organic frame; Interface bonding; Silicon anode
资金
- Natural Science Foundation of China [21476035, 21975036]
- Fundamental Research Funds for the Central Universities [3132019328]
The study synthesized Si@C-Ni-MOF composites with petal-like Ni-MOFs as the skeleton and Si@C nanoparticles as the active center, achieving enhanced performance for silicon in rechargeable lithium ion batteries.
Poor electrochemical kinetics caused by the unstable structure for the dramatically volumetric expansion (>300%) hinders the application of silicon in rechargeable lithium ion batteries. Si@C-Ni-MOF composites with petal-like Ni-MOFs as the skeleton and Si@C nanoparticles as the active center were synthesized via facile solvothermal process. The resulting Ni-MOF-Si@C material maintains admirable stability on cycling, and its capacity remains 1545.3 mAh g(-1) with a high capacity retention rate of 99.79% after 300 cycles at the current density of 200 mA g(-1). The enhancement on the kinetics is obtained, attributing to the porous structure created by the petal-like Ni-MOFs and the strong interface bonding between Si@C and Ni-MOFs. (C) 2020 Elsevier Inc. All rights reserved.
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