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Fabrication of FePO4 layer coated LiNi1/3Co1/3Mn1/3O2: Towards high-performance cathode materials for lithium ion batteries
| Content Provider | Semantic Scholar |
|---|---|
| Author | Xizheng, Liu Huiqiao, Li Eunjoo, Yoo Ishida, Kiyohito Masayoshi Haoshen, Zhou Liu, Xizheng Li, Huiqiao Yoo, Eunjoo Ishida, Masayoshi Zhou, Haoshen |
| Copyright Year | 2013 |
| Abstract | The surface of layered LiNi1/3Co1/3Mn1/3O2 was coated with nano-layer FePO4 by co-precipitation method and followed by heat treatment. The prepared samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). FePO4 coated samples exhibited both improved rate and cycle capacity compared with the pristine LiNi1/3Co1/3Mn1/3O2. The capacity retention after 100 cycles increased from 62.0% to 87.7%. The sample coated with 2 wt.% FePO4 and treated at 400 °C showed the optimum cyclability. The electrochemical impedance spectroscopy (EIS) results indicated that the FePO4 coating layer significantly suppressed the increase of charge-transfer resistance (Rct). The activation energy of the charge transfer processes at the electrode/electrolyte interface was reduced by FePO4 coating. Differential scanning calorimetry analysis showed the FePO4 coating improved the thermal stability of the cathode material. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://tsukuba.repo.nii.ac.jp/?action=repository_action_common_download&attribute_id=17&file_no=1&item_id=28150&item_no=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
