期刊
ADVANCED ENERGY MATERIALS
卷 11, 期 33, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.202101197
关键词
3D diamond-like skeleton; carbyne rich materials; energy applications; silicon-diamondyne; versatile materials
类别
资金
- National Natural Science Foundation of China [51822208, 21771187, 21701182, 21790050, 21790051, 11704024]
- Frontier Science Research Project of the Chinese Academy of Sciences [QYZDB-SSW-JSC052]
- Natural Science Foundation of Shandong Province (China) for Distinguished Young Scholars [JQ201610]
This study introduces a well-designed 3D material silicon-diamondyne (Si-DY) with abundant storage sites and efficient diffusion paths, which shows excellent storage and diffusion properties for various alkali metal ions. Si-DY demonstrates ultrahigh theoretical capacities and stable practical specific capacities, indicating its exceptional potential for energy applications.
Regarding different kinds of alkali metal ion batteries such as lithium-ion battery (LIB), sodium-ion battery (NIB), and potassium-ion battery (KIB), since the diameters and properties of these ions are different, there are few materials that are adaptable simultaneously as the anode for these batteries. To achieve the versatile compatibility material, its chemical component and spatial configuration need to be predesigned for possessing abundant storage sites and efficient diffusion paths. Here, a well-designed 3D material silicon-diamondyne (Si-DY) is prepared which is only comprised of butadiyne units and sp(3)-hybridized silicon atoms. Owing to the combination of the abundant diyne and various inner channels in the stable diamond-like skeleton, Si-DY exhibits excellent storage and diffusion properties for alkali metal ions. The Si-DY is predicted with an ultrahigh theoretical capacity of 3674, 2810, and 1945 mAh g(-1) for lithium, sodium, and potassium ions, respectively. Especially, as the anode of LIB, NIB, and KIB, Si-DY achieves very high stable practical specific capacities of 2350, 812, and 512 mAh g(-1), respectively, as well as an ultra-long cycling stability. Those outstanding results demonstrate that the as-designed Si-DY displays an exceptional potential as the versatile material for energy applications.
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