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Study on preparation of NiCo ferrite using spent lithium-ion and nickel-metal hydride batteries

机译：废锂离子和镍氢电池制备镍钴铁氧体的研究

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To reduce cost and secondary pollution caused by complicated separation and purification in the recycling of spent batteries, an environmentally friendly process was proposed to treat and recycle a mixture of spent lithium-ion batteries (LIBs) and nickel-metal hydride (Ni-MH) batteries. In this novel process, spent LIBs and NiMH batteries were used as source materials to prepare magnetic nanoparticles of NiCo ferrite by sol-gel combustion. Characterization studies, such as XRD, FESEM and TEM, have been carried out to explore the particle size. The presence of functional group has been identified by Fourier transform infrared spectra. From TG-DSC studies, crystallization occurs at temperatures above 550 degrees C. The magnetic properties of final nanoparticles were found to be directly influenced by average size of products. The values of Ms, Mr, and Hc of NiCo ferrite increase with the increasing size of the final products. (C) 2015 Elsevier B.V. All rights reserved.
机译：为了降低废旧电池回收过程中复杂的分离和纯化过程造成的成本和二次污染，提出了一种环保方法来处理和回收废旧锂离子电池（LIB）和镍金属氢化物（Ni-MH）的混合物电池。在这种新方法中，用过的LIB和NiMH电池作为原料，通过溶胶-凝胶燃烧制备了NiCo铁氧体的磁性纳米粒子。已经进行了表征研究，例如XRD，FESEM和TEM，以探索粒径。官能团的存在已通过傅立叶变换红外光谱确定。根据TG-DSC研究，结晶发生在高于550摄氏度的温度下。发现最终纳米粒子的磁性能直接受产品平均尺寸的影响。 NiCo铁氧体的Ms，Mr和Hc值随最终产品尺寸的增加而增加。 （C）2015 Elsevier B.V.保留所有权利。

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