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Effect of vacuum-carbonization treatment of soft carbon anodes derived from coal-based mesophase pitch for lithium-ion batteries.
- Source :
- Clean Energy; Sep2019, Vol. 3 Issue 3, p211-216, 6p
- Publication Year :
- 2019
-
Abstract
- Development of new power anode material with both high capacity and high-rate capability for lithium-ion batteries is highly desired. In this paper, a novel soft carbon anode for rechargeable lithium-ion batteries was developed using coal-based mesophase pitch. The structures of the materials were characterized by X-ray diffraction (XRD), Raman, N<subscript>2</subscript> adsorption–desorption, Scanning Electron Microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The electrochemical characteristics of the new anode material were investigated. It was found that the soft carbon anode from coal-based mesophase pitch carbonized under vacuum conditions can deliver higher energy density and higher rate capability compared to soft carbon carbonized under a nitrogen atmosphere. The enhanced electrochemical properties are attributed to smaller nanocrystallites, more porosity, defects and carbon species of the resulting anode material. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09187510
- Volume :
- 3
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Clean Energy
- Publication Type :
- Academic Journal
- Accession number :
- 139587037
- Full Text :
- https://doi.org/10.1093/ce/zkz011