Comparative study of Al2O3, SiO2 and TiO2-coated LiNi0.6Co0.2Mn0.2O2 electrode prepared by hydrolysis coating technology
In this work, Al, Si and Ti oxides are used to modify the surface of LiNi0.6Co0.2Mn0.2O2 (NCM622) electrode through the hydrolysis coating technology. SEM and TEM results revealed that three prepared oxide layers have different uniformity and morphology. Also, charge-discharge results showed differe...
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| Format: | Article |
| Language: | English |
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International Association of Physical Chemists (IAPC)
2019-02-01
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| Series: | Journal of Electrochemical Science and Engineering |
| Subjects: | |
| Online Access: | http://pub.iapchem.org/ojs/index.php/JESE/article/view/624 |
| _version_ | 1818948221332881408 |
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| author | Daxian Zuo Cuiping Wang Guanglei Tian Kangying Shu Xingjun Liu |
| author_facet | Daxian Zuo Cuiping Wang Guanglei Tian Kangying Shu Xingjun Liu |
| author_sort | Daxian Zuo |
| collection | DOAJ |
| description | In this work, Al, Si and Ti oxides are used to modify the surface of LiNi0.6Co0.2Mn0.2O2 (NCM622) electrode through the hydrolysis coating technology. SEM and TEM results revealed that three prepared oxide layers have different uniformity and morphology. Also, charge-discharge results showed different initial discharge capacity and cycle ability of three different oxide coatings. It is shown that when the temperature is increased from 25 to 50 °C, the capacity retention of Al2O3-coated NCM622 is reduced by only 4 %, what demonstrated the best ability of this oxide to restrain cycle deterioration. Additionally, when the charge cutoff voltage is increased to 4.6 V, Al2O3-coated NCM622 showed 74 % of capacity retention. As the number of charge-discharge cycles increases, the dissolution of some transition metal ions may be restrained by Al2O3 layer. Generally, the enhanced electrochemical performance of Al2O3-coated NCM622 could be ascribed to the suppression of mutual reaction between electrode and electrolyte and improvement of structural stability of the material by Al2O3 coating. |
| first_indexed | 2024-12-20T08:43:21Z |
| format | Article |
| id | doaj.art-f2434d618a874950afe0fa95aa154a13 |
| institution | Directory Open Access Journal |
| issn | 1847-9286 |
| language | English |
| last_indexed | 2024-12-20T08:43:21Z |
| publishDate | 2019-02-01 |
| publisher | International Association of Physical Chemists (IAPC) |
| record_format | Article |
| series | Journal of Electrochemical Science and Engineering |
| spelling | doaj.art-f2434d618a874950afe0fa95aa154a132022-12-21T19:46:19ZengInternational Association of Physical Chemists (IAPC)Journal of Electrochemical Science and Engineering1847-92862019-02-019210.5599/jese.624353Comparative study of Al2O3, SiO2 and TiO2-coated LiNi0.6Co0.2Mn0.2O2 electrode prepared by hydrolysis coating technologyDaxian Zuo0Cuiping Wang1Guanglei Tian2Kangying Shu3Xingjun Liu4College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University, Xiamen, 361005College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University, Xiamen, 361005College of Material Science and Engineering, China Jiliang University, Hangzhou, 310018College of Material Science and Engineering, China Jiliang University, Hangzhou, 310018College of Materials and Fujian Provincial Key Laboratory of Materials Genome, Xiamen University, Xiamen, 361005 and Department of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, Guangdong, 518055In this work, Al, Si and Ti oxides are used to modify the surface of LiNi0.6Co0.2Mn0.2O2 (NCM622) electrode through the hydrolysis coating technology. SEM and TEM results revealed that three prepared oxide layers have different uniformity and morphology. Also, charge-discharge results showed different initial discharge capacity and cycle ability of three different oxide coatings. It is shown that when the temperature is increased from 25 to 50 °C, the capacity retention of Al2O3-coated NCM622 is reduced by only 4 %, what demonstrated the best ability of this oxide to restrain cycle deterioration. Additionally, when the charge cutoff voltage is increased to 4.6 V, Al2O3-coated NCM622 showed 74 % of capacity retention. As the number of charge-discharge cycles increases, the dissolution of some transition metal ions may be restrained by Al2O3 layer. Generally, the enhanced electrochemical performance of Al2O3-coated NCM622 could be ascribed to the suppression of mutual reaction between electrode and electrolyte and improvement of structural stability of the material by Al2O3 coating.http://pub.iapchem.org/ojs/index.php/JESE/article/view/624Lithium ion batterynickel-rich layered cathodeoxide coating layerelectrochemical performancepolarization resistance |
| spellingShingle | Daxian Zuo Cuiping Wang Guanglei Tian Kangying Shu Xingjun Liu Comparative study of Al2O3, SiO2 and TiO2-coated LiNi0.6Co0.2Mn0.2O2 electrode prepared by hydrolysis coating technology Journal of Electrochemical Science and Engineering Lithium ion battery nickel-rich layered cathode oxide coating layer electrochemical performance polarization resistance |
| title | Comparative study of Al2O3, SiO2 and TiO2-coated LiNi0.6Co0.2Mn0.2O2 electrode prepared by hydrolysis coating technology |
| title_full | Comparative study of Al2O3, SiO2 and TiO2-coated LiNi0.6Co0.2Mn0.2O2 electrode prepared by hydrolysis coating technology |
| title_fullStr | Comparative study of Al2O3, SiO2 and TiO2-coated LiNi0.6Co0.2Mn0.2O2 electrode prepared by hydrolysis coating technology |
| title_full_unstemmed | Comparative study of Al2O3, SiO2 and TiO2-coated LiNi0.6Co0.2Mn0.2O2 electrode prepared by hydrolysis coating technology |
| title_short | Comparative study of Al2O3, SiO2 and TiO2-coated LiNi0.6Co0.2Mn0.2O2 electrode prepared by hydrolysis coating technology |
| title_sort | comparative study of al2o3 sio2 and tio2 coated lini0 6co0 2mn0 2o2 electrode prepared by hydrolysis coating technology |
| topic | Lithium ion battery nickel-rich layered cathode oxide coating layer electrochemical performance polarization resistance |
| url | http://pub.iapchem.org/ojs/index.php/JESE/article/view/624 |
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