Preparation and characterization of lithium-rich ternary cathode materials using novel chelating agent and solvent
| Autor: | Lijuan Zhang, Sun Yanxia, Yuan Zhou, Zeng Jinbo, Shen Yue |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Battery (electricity)
Materials science Inorganic chemistry chemistry.chemical_element Sintering 02 engineering and technology 010402 general chemistry Electrochemistry 01 natural sciences law.invention chemistry.chemical_compound law Materials Chemistry medicine Mechanical Engineering Metals and Alloys 021001 nanoscience & nanotechnology Cathode 0104 chemical sciences chemistry Mechanics of Materials Triethanolamine Lithium 0210 nano-technology Ternary operation Ethylene glycol medicine.drug Nuclear chemistry |
| Zdroj: | Journal of Alloys and Compounds. 723:1142-1149 |
| ISSN: | 0925-8388 |
| Popis: | In this study, Li 1.2 Ni 0.13 Co 0.13 Mn 0.54 O 2 cathode materials for lithium-ion battery have been successfully synthesized by triethanolamine(TEA) and ethylene glycol solution assisted co-precipitation technology and solid-state sintering method. Relevant tests (XRD, ICP, SEM) were used to determine the structure, composition and morphology of the Li 1.2 Ni 0.13 Co 0.13 Mn 0.54 O 2 cathode materials. The electrochemical tests were performed to evaluate the electrochemical performance of the materials. The results show that the initial discharge capacity is 263.8 mAh g −1 at 0.1C rate in a half battery. Furthermore, this cathode material retains a final capacity of 186 mAh g −1 at 0.5C after 200 cycles and displays an outstanding capacity retention of 98.5%. And all tests prove that the Li 1.2 Ni 0.13 Co 0.13 Mn 0.54 O 2 lithium-rich materials synthesized with TEA and ethylene glycol solution assisted co-precipitation method have excellent electrochemical properties. |
| Databáze: | OpenAIRE |
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