Effects of Ba dopant on the structural, microstructural, and electrochemical properties of NCM811 cathode material (BaxLi1−xNi0.8Co0.1Mn0.1O2) for Li-ion storage
The Ba-doped NCM 811 cathode material (BaxLi1-xNi0.8Co0.1Mn0.1O2 (x = 0, 0.015, 0.03, 0.05)) was prepared by a facile chemical synthesis method. The structural, microstructural, and electrochemical properties were studied as a function of Ba content by X-ray diffractometry, X-ray photoelectron spect...
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2025-03-01
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| author | K. Goharshadi S.M. Masoudpanah H. Nasrinpour M. Namayandeh Jorabchi |
| author_facet | K. Goharshadi S.M. Masoudpanah H. Nasrinpour M. Namayandeh Jorabchi |
| author_sort | K. Goharshadi |
| collection | DOAJ |
| description | The Ba-doped NCM 811 cathode material (BaxLi1-xNi0.8Co0.1Mn0.1O2 (x = 0, 0.015, 0.03, 0.05)) was prepared by a facile chemical synthesis method. The structural, microstructural, and electrochemical properties were studied as a function of Ba content by X-ray diffractometry, X-ray photoelectron spectroscopy, scanning electron microscopy, galvanic charge/discharge, and electrochemical impedance spectroscopy (EIS) techniques. Single-phase NCM powders with the layered crystal structure were crystallized irrespective of the amount of Ba dopant. The unit cell volume expanded from 100.606 to 101.962 Å3 by adding the Ba cations. Furthermore, the particle size increased from 0.40 to 0.49 μm by increasing the Ba dopant up to 5 %. The Ba0.03Li0.97Ni0.8Co0.1Mn0.1O2 material had the highest discharge specific capacity of 185 mA h g‐1 at a current rate of 0.1C and a high capacity retention of 99.8 % after 500 charge/discharge cycling at 1C. By adding the Ba cations, the diffusion coefficient calculated from EIS increased from 3.31 × 10−14 to 7.71 × 10−14 cm2 s−1 due to the expansion of the lattice structure. |
| format | Article |
| id | doaj-art-5df66725e3b546be8b39f34847b4021c |
| institution | DOAJ |
| issn | 1388-2481 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
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| series | Electrochemistry Communications |
| spelling | doaj-art-5df66725e3b546be8b39f34847b4021c2025-08-20T02:55:13ZengElsevierElectrochemistry Communications1388-24812025-03-0117210787810.1016/j.elecom.2025.107878Effects of Ba dopant on the structural, microstructural, and electrochemical properties of NCM811 cathode material (BaxLi1−xNi0.8Co0.1Mn0.1O2) for Li-ion storageK. Goharshadi0S.M. Masoudpanah1H. Nasrinpour2M. Namayandeh Jorabchi3School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, IranSchool of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran; Corresponding author.School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, IranLeibniz Institute for Catalysis, Albert-Einstein-Straße 29a, Rostock D-18059, GermanyThe Ba-doped NCM 811 cathode material (BaxLi1-xNi0.8Co0.1Mn0.1O2 (x = 0, 0.015, 0.03, 0.05)) was prepared by a facile chemical synthesis method. The structural, microstructural, and electrochemical properties were studied as a function of Ba content by X-ray diffractometry, X-ray photoelectron spectroscopy, scanning electron microscopy, galvanic charge/discharge, and electrochemical impedance spectroscopy (EIS) techniques. Single-phase NCM powders with the layered crystal structure were crystallized irrespective of the amount of Ba dopant. The unit cell volume expanded from 100.606 to 101.962 Å3 by adding the Ba cations. Furthermore, the particle size increased from 0.40 to 0.49 μm by increasing the Ba dopant up to 5 %. The Ba0.03Li0.97Ni0.8Co0.1Mn0.1O2 material had the highest discharge specific capacity of 185 mA h g‐1 at a current rate of 0.1C and a high capacity retention of 99.8 % after 500 charge/discharge cycling at 1C. By adding the Ba cations, the diffusion coefficient calculated from EIS increased from 3.31 × 10−14 to 7.71 × 10−14 cm2 s−1 due to the expansion of the lattice structure.http://www.sciencedirect.com/science/article/pii/S1388248125000177NCM811Ba dopingLayered structureElectrochemical properties |
| spellingShingle | K. Goharshadi S.M. Masoudpanah H. Nasrinpour M. Namayandeh Jorabchi Effects of Ba dopant on the structural, microstructural, and electrochemical properties of NCM811 cathode material (BaxLi1−xNi0.8Co0.1Mn0.1O2) for Li-ion storage Electrochemistry Communications NCM811 Ba doping Layered structure Electrochemical properties |
| title | Effects of Ba dopant on the structural, microstructural, and electrochemical properties of NCM811 cathode material (BaxLi1−xNi0.8Co0.1Mn0.1O2) for Li-ion storage |
| title_full | Effects of Ba dopant on the structural, microstructural, and electrochemical properties of NCM811 cathode material (BaxLi1−xNi0.8Co0.1Mn0.1O2) for Li-ion storage |
| title_fullStr | Effects of Ba dopant on the structural, microstructural, and electrochemical properties of NCM811 cathode material (BaxLi1−xNi0.8Co0.1Mn0.1O2) for Li-ion storage |
| title_full_unstemmed | Effects of Ba dopant on the structural, microstructural, and electrochemical properties of NCM811 cathode material (BaxLi1−xNi0.8Co0.1Mn0.1O2) for Li-ion storage |
| title_short | Effects of Ba dopant on the structural, microstructural, and electrochemical properties of NCM811 cathode material (BaxLi1−xNi0.8Co0.1Mn0.1O2) for Li-ion storage |
| title_sort | effects of ba dopant on the structural microstructural and electrochemical properties of ncm811 cathode material baxli1 xni0 8co0 1mn0 1o2 for li ion storage |
| topic | NCM811 Ba doping Layered structure Electrochemical properties |
| url | http://www.sciencedirect.com/science/article/pii/S1388248125000177 |
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