|
| Erosion Process of Saggar in Synthesis of LiNixCoyMn1—x—yO2 Cathode Material |
|
Received:December 09, 2022
Revised:January 20, 2023
Accepted:January 30, 2023
Published Online:March 17, 2023
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2023.04.011 |
| KeyWord:ternary cathode material; saggar; erosion mechanism |
| Author | Institution |
| ZHANG Li-fen |
长沙矿冶研究院有限责任公司 |
| WAN Hong-qiang |
长沙矿冶研究院有限责任公司 |
| WANG Feng-gang |
长沙矿冶研究院有限责任公司 |
| MA Yun-cong |
长沙矿冶研究院有限责任公司 |
| HUANG Yan-qiang |
长沙矿冶研究院有限责任公司 |
| SUN Zhen-hua |
中国科学院过程工程研究所 |
| LI Shao-peng |
中国科学院过程工程研究所 |
|
| Hits: 1509 |
| Download times: 2332 |
| Abstract: |
| The waste saggar used to roast ternary cathode material LiNixCoyMn1-x-yO2 in industry was used as the sample. The corrosion mechanism of the saggar in the high temperature synthesis process of ternary cathode material LiNixCoyMn1—x—yO2 was studied by fluorescence and chemical analysis, X-ray diffraction analysis, microstructure and energy spectrum analysis. The results show that the erosion of saggar is mainly caused by lithium ions during the synthesis of LiNixCoyMn1-x-yO2, whose erosion product is LiAlO2. At the same time, the original sagger matrix is destroyed to form a new phase of Mg6Al2(OH)18?4.5H2O. The three metal ions of nickel, cobalt and manganese do not form new phase during the high temperature synthesis process. The eroded saggar is obviously divided into two layers, and there is a transition band between the two layers, which may be a dense transition layer formed in the middle to protect the saggar from further damage. |
| Close |