| Pressure dependence of the thermal stability in LiMn2O4 |
| |
| 作者姓名： | 曾彦 梁浩 管诗雪 王俊普 梁文嘉 黄梦阳 彭放 |
| |
| 作者单位： | 1.Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;2.School of Science, Southwest University of Science and Technology, Mianyang 621010, China |
| |
| 基金项目： | by the National Natural Science Foundation of China(Grant No.12074273);the Doctoral Research Fund of Southwest University of Science and Technology(Grant No.20zx7136). |
| |
| 摘 要： | Structural stability in terms of the decomposition temperature in LiMn2O4 was systematically investigated by a series of high-temperature and high-pressure experiments.LiMn2O4 was found to have structural stability up to 5 GPa at room temperature.Under ambient pressure,the compound decomposed at 1300℃.The decomposition temperature decreased with increasing pressure,yielding more complex decomposed products.Below the decomposition temperature,the crystal structure of LiMn2O4 varied with pressure.The presented results in this study offer new insights into the thermal and pressure stability of LiMn2O4 materials as a cathode for lithium-ion batteries that can operate under extreme conditions.Therefore,these findings may serve as a useful guide for future work for improving lithium-ion batteries.
|
| 关 键 词： | LiMn2O4 high pressure x-ray diffractometer decomposition reactions |
| 收稿时间： | 2021-05-30 |
Pressure dependence of the thermal stability in LiMn2O4 |
| |
| Yan Zeng,Hao Liang,Shixue Guan,Junpu Wang,Wenjia Liang,Mengyang Huang,Fang Peng.Pressure dependence of the thermal stability in LiMn2O4[J].Chinese Physics B,2022,31(1):16104-016104. |
| |
| Authors: | Yan Zeng Hao Liang Shixue Guan Junpu Wang Wenjia Liang Mengyang Huang Fang Peng |
| |
| Institution: | 1.Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;2.School of Science, Southwest University of Science and Technology, Mianyang 621010, China |
| |
| Abstract: | Structural stability in terms of the decomposition temperature in LiMn2O4 was systematically investigated by a series of high-temperature and high-pressure experiments. LiMn2O4 was found to have structural stability up to 5 GPa at room temperature. Under ambient pressure, the compound decomposed at 1300 ℃. The decomposition temperature decreased with increasing pressure, yielding more complex decomposed products. Below the decomposition temperature, the crystal structure of LiMn2O4 varied with pressure. The presented results in this study offer new insights into the thermal and pressure stability of LiMn2O4 materials as a cathode for lithium-ion batteries that can operate under extreme conditions. Therefore, these findings may serve as a useful guide for future work for improving lithium-ion batteries. |
| |
| Keywords: | LiMn2O4 high pressure x-ray diffractometer decomposition reactions |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
