期刊
NANOTECHNOLOGY
卷 31, 期 17, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/ab6751
关键词
porous Sb; Sb nanodendrites; lithium/sodium-ion batteries
资金
- National Natural Science Foundation of China [51301117, 51671140]
- Natural Science Foundation of Shanxi Province of China [201801D121281]
- International Cooperation Project Foundation of Shanxi Province China [201603D421037, 2015081053]
- Top Young Academic Leaders of Shanxi
- Higher School Science and Technology Innovation Project Foundation of Shanxi Province China [2016128]
- 1331 project' Key Innovation Teams of Shanxi Province
The increasing demand in energy consumption and the use of clean energy from sustainable energy sources have driven the research in the development of advanced materials for Li-ion and Na-ion batteries. In this work, we have developed a simple technique to synthesize a porous Sb structure through a galvanic replacement reaction between Sb3+ and Zn particles. The porous Sb structure consists of a three-dimensional-hierarchical structure with tree-like nanoscale Sb dendrites. The Sb in the nanodendrites is crystal of a rhombohedral structure. We construct Li-/Na-ion half cells and Li-/Na-ion full cells with the Sb nanodendrites as the active material in the working electrode and anode, respectively, and introduce an additive of vinylene carbonate for the Li-ion half/full cells and an additive of fluoroethylene carbonate for the Na-ion half/full cells. All the Li-/Na-ion half cells and Li-/Na-ion full cells exhibit excellent electrochemical performance and cycling stability. Such excellent performance can be attributed to the synergistic interaction between the three-dimensional-dendritic structure and electrolyte, which likely ensures fast transport of ions and electrons and the formation of a stable solid-state interphase.
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