Relation Between Crystal Structure and Electrochemical Performance of LiNi1/3ZnxCo1/3−xMn1/3O2 (0.000 ≤ x ≤ 0.133)
| Autor: | Ruiqi Wang, Feng Yuan, Xujun Wang, Yong Wan, Mingning Chang, Xiao-Hui Ge, Xiantang Xu, He Wang, Sheng Xu, Weiquan Shao |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Doping Biomedical Engineering Analytical chemistry chemistry.chemical_element Nanoparticle Bioengineering 02 engineering and technology General Chemistry Crystal structure Zinc 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences 0104 chemical sciences Microsphere Charge transfer resistance chemistry General Materials Science 0210 nano-technology |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 18:2797-2802 |
| ISSN: | 1533-4880 |
| DOI: | 10.1166/jnn.2018.14393 |
| Popis: | LiNi1/3ZnxCo1/3-xMn1/3O2 (0.000 ≤ x ≤ 0.133) hollow microspheres are synthesized using MnO2 hollow microspheres both as a self-template and Mn source. These hollow microspheres, ~4 μm in diameter, are composed of approximately 300 nm basic nanoparticles. The XRD patterns of LiNi1/3ZnxCo1/3-xMn1/3O2 were analyzed by the RIETAN-FP program, and the obtained samples have a layered α-NaFeO2 structure. Electrochemical performances of the samples were carried out between 2.5 V and 4.5 V. The behavior of the lattice parameters is consistent with Cycling performance and rate performance change with increase of x. Compared with the others, the sample of x = 0.133 exhibits a relatively superior electrochemical performance. The specific capacity of x = 0.133 was increased by 10.7% than no-doped. In addition, the cyclic voltammograms curves of the second cycle show no significant alteration compared with the first cycle and the electrochemical impedance of zinc doping sample showed smaller transfer resistance than the no-doping sample. |
| Databáze: | OpenAIRE |
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