Phase transition of lithiated-spinel Li2Mn2O4 at high temperature
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Efficient separation of Li and Mn from spent LiMn<inf>2</inf>O<inf>4</inf> cathode materials by NH<inf>4</inf>HSO<inf>4</inf> reduction roasting-selective ammonia leaching
2024, Separation and Purification TechnologyHigh temperature microwave dielectric and thermochemical properties of waste Li<inf>x</inf>Mn<inf>2</inf>O<inf>4</inf> battery cathode materials reduced by moso bamboo
2022, Renewable EnergyCitation Excerpt :In the fifth stage (e.g., >600 °C, especially at 900 °C), the pyrolysis of the bamboo residue was completed, so the quality change in this stage is very slow. At approximately 900 °C, the decrease in sample quality is mainly due to the high-temperature instability of the Li compounds, which leads to the endothermic process of phase transformation, which leads to the presence of Li and Mn in the form of metals or metal alloys [59]. Fig. 6 indicates the relationship between the dielectric properties (e.g., εr', εr", tan δ) of the waste lithium-ion battery cathode materials and temperatures (30–900 °C).
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Foundation item: Project(20406024) supported by the National Natural Science Foundation of China; Project(76600) supported by the Postdoctoral Science Foundation of Central South University, China