Influence of dilution effect on the electrochemical performance of integrated 0.5Li(Mn1.5Ni0.5)O4. 0.5(Li2MnO3–Li(Mn0.5Ni0.5)O2) cathodes
| Autor: | In Hyung Choi, Yun Ju Hwang, Vanchiappan Aravindan, Yun-Sung Lee, Jae Min Choi, Kee Suk Nahm |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
Process Chemistry and Technology Analytical chemistry Continuous stirred-tank reactor Electrochemistry Cathode Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Dilution Chemical engineering law Impurity Yield (chemistry) Electrode Materials Chemistry Ceramics and Composites Chelation |
| Zdroj: | Ceramics International. 40:13033-13039 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2014.04.167 |
| Popis: | We report the influence of dilution effect on the synthesis and electrochemical profiles of integrated spinel–layered 0.5Li(Mn 1.5 Ni 0.5 )O 4 . 0.5(Li 2 MnO 3 –Li(Mn 0.5 Ni 0.5 )O 2 cathodes prepared by scalable continuous stirred tank reactor (CSTR). Apparently, the dilution of chelating agent or precursor solutions leads to the formation of unavoidable impurity phases. However, the presence of such impurity traces certainly improves the electrochemical stability of such spinel–layered integrated electrodes. In addition, influence of operating potential is also investigated and it was found that 2.4–4.8 V vs. Li is the optimal condition to yield high capacity and high performance cathode material. |
| Databáze: | OpenAIRE |
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