Cr-Doped Li2ZnTi3O8 as a High Performance Anode Material for Lithium-Ion Batteries
Li 2 ZnTi 2.9 Cr 0.1 O 8 and Li 2 ZnTi 3 O 8 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 pe...
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| Published in | Frontiers in chemistry Vol. 8; p. 600204 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Frontiers Media S.A
28.01.2021
|
| Subjects | |
| Online Access | Get full text |
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| Summary: | Li
2
ZnTi
2.9
Cr
0.1
O
8
and Li
2
ZnTi
3
O
8
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 Li
2
ZnTi
3
O
8
exhibited much improved cycle performance and rate performance compared with Li
2
ZnTi
3
O
8
. Li
2
ZnTi
2.9
Cr
0.1
O
8
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 Li
2
ZnTi
2.9
Cr
0.1
O
8
are due to its increased electrical conductivity. |
|---|---|
| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Reviewed by: Ting-Feng Yi, Northeastern University at Qinhuangdao, China; Hongwei Mi, Shenzhen University, China Edited by: Bin Huang, Guilin University of Technology, China This article was submitted to Electrochemistry, a section of the journal Frontiers in Chemistry |
| ISSN: | 2296-2646 2296-2646 |
| DOI: | 10.3389/fchem.2020.600204 |