The limited lifespan, ever-growing demand, and significant lithium and cobalt content are responsible factors for the immediate recycling of discarded lithium-ion batteries. Discharged batteries were dismantled, segregated, and size reduced to recover cathode and anode material. The active cathode material comprises LiCoO 2 (65.8%) and LiMn 2 O 4 (34.2%) and was carbothermal reduced with recovered graphite in a microwave furnace followed by water leaching and magnetic separation. A Box Behnken statistical experimental design is used for process optimization. Both cobalt and manganese report to magnetic fraction, whereas graphite and lithium carbonate report to non-magnetic fraction and solution crystal respectively. The final product comprises of cobalt 73% and manganese of 14% with process yield of ̴ 36% and saturation magnetization of 76 emu/g.

中文翻译：

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用于回收钴、锰和锂的电极活性材料的微波处理

有限的寿命、不断增长的需求以及大量的锂和钴含量是立即回收废弃锂离子电池的重要因素。已放电的电池被拆除、隔离并缩小尺寸以回收阴极和阳极材料。正极活性材料包含LiCoO 2 (65.8%)和LiMn 2 O 4 (34.2%)，并在微波炉中用回收的石墨进行碳热还原，然后进行水浸和磁选。Box Behnken 统计实验设计用于工艺优化。钴和锰均报告为磁性部分，而石墨和碳酸锂分别报告为非磁性部分和溶液晶体。最终产品包含 73% 的钴和 14% 的锰，工艺产率为 ̴ 36%，饱和磁化强度为 76 emu/g。