Abstract
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.
Original language | English |
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Article number | 175401 |
Journal | Nanotechnology |
Volume | 31 |
Issue number | 17 |
DOIs | |
State | Published - Feb 7 2020 |
Bibliographical note
Publisher Copyright:© 2020 IOP Publishing Ltd.
Keywords
- Sb nanodendrites
- lithium/sodium-ion batteries
- porous Sb
ASJC Scopus subject areas
- Bioengineering
- General Chemistry
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering