Sb/Cu2Sb-TiC-C Composite Anode for High-Performance Sodium-Ion Batteriesor
- Authors
- Chae, Seung Chul; Hur, Jaehyun; Kim, Il Tae
- Issue Date
- Feb-2016
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Titanium Carbide; Alloy Anode; Sodium-Ion Batteries
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.16, no.2, pp.1890 - 1893
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 16
- Number
- 2
- Start Page
- 1890
- End Page
- 1893
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/8593
- DOI
- 10.1166/jnn.2016.11932
- ISSN
- 1533-4880
- Abstract
- A novel nanostructure consisting of copper-antimony alloy (Cu2Sb) particles dispersed in a conductive hybrid matrix of titanium carbide (TiC) and carbon (C) has been developed by high energy mechanical milling (HEMM) and explored for use as an anode in sodium-ion batteries. By controlling the molar ratio of Cu and Sb, Cu2Sb and Sb are able to co-exist in a matrix. The (Sb)/Cu2Sb-TiC-C samples have been characterized by X-ray diffraction and by high-resolution transmission electron microscopy. Specifically, the Cu2Sb-TiC-C composite anode demonstrates better cyclic performance as well as better rate-capability compared to Sb/Cu2Sb-TiC-C. Additionally, the introduction of the fluoroethylene carbonate (FEC) additive into the electrolyte leads to improved electrochemical performance even at high-rate current densities, when compared to the electrodes without the FEC additive, owing to the formation of a stable and thin SEI layer.
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