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Preparation of Cathode Materials by Spray Drying from Leaching Solution of Spent lithium-ion Batteries Materials

机译:喷雾干燥从废锂离子电池材料的浸出溶液制备阴极材料

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Recycling of spent lithium-ion batteries is beneficial for resources recovery and environment protection. To solve the long and complex process of the existing recovery process, herein the precursor of LiNi0.6Co0.2Mn0.2O2 was prepared directly from the leaching solution and then used for regeneration of the LiNi0.6Co0.2Mn0.2O2 materials. Based on the ratio of n (Li): n (Ni): n (Co): n (Mn) =2: 0.6: 0.2: 0.2, the precursor was directly prepared by spray drying with the needed acetate adding into the leaching solution. Based on TG-DSC analysis, the LiNi0.6Co0.2Mn0.2O2 materials was prepared by calcination at 450 °C for 5 h and secondary calcination at 850 ° C for 12 h. Finally, the regenerated LiNi0.6Co0.2Mn0.2O2 materials has good electrochemical reversibility and excellent rate performance.
机译:废锂离子电池的回收有利于资源回收和环境保护。 为了解决现有恢复过程的长期和复杂的过程,本文中的LiNi0.6CO0.2Mn0.2O2的前体直接由浸出溶液制备,然后用于LiNi0.6CO0.2Mn0.2O2材料的再生。 基于N(Li)的比例:N(Ni):N(CO):N(Mn)= 2:0.6:0.2:0.2,通过喷雾干燥加入浸出溶液中的所需醋酸盐直接制备前体 。 基于TG-DSC分析,通过在450℃下煅烧5小时,在850℃下煅烧12小时,通过煅烧制备LINI0.6CO0.2MN0.202材料。 最后,再生LINI0.6CO0.2MN0.2O2材料具有良好的电化学可逆性和优异的速率性能。

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