期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 4, 期 18, 页码 7053-7059出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta10568d
关键词
-
资金
- Swiss Federal Commission for Technology and Innovation (CTI) [14698.2 PFIW-IW]
- CTI Swiss Competence Centers for Energy Research (SCCER)
- ETH Zurich [ETH-56 12-2]
- Competence Center for Energy and Mobility (CCEM)
- Belenos Clean Power Holding
The quest for higher energy densities of lithium-ion batteries (LIBs) and emerging sodium-ion analogues (SIBs) has motivated an intense research effort toward novel electrode materials. We report a simple and inexpensive colloidal synthesis of SnSb nanocrystals (NCs) and demonstrate their utility as lithium- and sodium-ion anode materials. In particular, SnSb NC Li-ion anodes deliver capacities of similar to 890 mA h g(-1) for 100 cycles at a current density of 200 mA g(-1) and show excellent rate capability, reaching 90% and 80% of the theoretical capacity at current densities of 1000 and 5000 mA g(-1), respectively. Similarly, SnSb NCs show also outstanding Na-ion storage properties with only similar to 5% capacity loss over 100 cycles at a rate of 5000 mA g(-1). Full-cells can be constructed with SnSb anodes and state-of-the-art cathodes, achieving anodic capacities of 600 and 400 mA h g(-1) with an average discharge voltage of 3.0 and 2.7 V for lithium-and sodium-ions, respectively.
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