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Cr-Doped Li2ZnTi3O8 as a High Performance Anode Material for Lithium-Ion Batteries
- Source :
- Frontiers in Chemistry, Vol 8 (2021), Frontiers in Chemistry
- Publication Year :
- 2021
- Publisher :
- Frontiers Media S.A., 2021.
-
Abstract
- Li2ZnTi2.9Cr0.1O8 and Li2ZnTi3O8 were synthesized by the liquid phase method and then studied comparatively using X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), galvanostatic charge–discharge testing, cyclic stability testing, rate performance testing, and electrochemical impedance spectroscopy (EIS). The results showed that Cr-doped Li2ZnTi3O8 exhibited much improved cycle performance and rate performance compared with Li2ZnTi3O8. Li2ZnTi2.9Cr0.1O8 exhibited a discharge ability of 156.7 and 107.5 mA h g−1 at current densities of 2 and 5 A g−1, respectively. In addition, even at a current density of 1 A g−1, a reversible capacity of 162.2 mA h g−1 was maintained after 200 cycles. The improved electrochemical properties of Li2ZnTi2.9Cr0.1O8 are due to its increased electrical conductivity.
- Subjects :
- Materials science
Scanning electron microscope
Analytical chemistry
chemistry.chemical_element
General Chemistry
Electrochemistry
Li2ZnTi3O8
Lithium-ion battery
Anode
Dielectric spectroscopy
lcsh:Chemistry
Chemistry
Li2ZnTi2.9Cr0.1O8
anode material
chemistry
X-ray photoelectron spectroscopy
lcsh:QD1-999
Lithium
Cr doping
lithium ion battery
Current density
Original Research
Subjects
Details
- Language :
- English
- ISSN :
- 22962646
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Frontiers in Chemistry
- Accession number :
- edsair.doi.dedup.....c90700ec9f5b1941d3452288e977f639