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http://dx.doi.org/10.4150/KPMI.2014.21.2.131

Preparation of Cathode Materials for Lithium Rechargeable Batteries using Transition Metals Recycled from Li(Ni1-x-yCoxMny)O2 Secondary Battery Scraps  

Lee, Jae-Won (Department of Energy Engineering, Dankook University)
Kim, Dae Weon (Townmining Company Ltd.)
Jang, Seong Tae (Townmining Company Ltd.)
Publication Information
Journal of Powder Materials / v.21, no.2, 2014 , pp. 131-136 More about this Journal
Abstract
Cathode materials and their precursors are prepared with transition metal solutions recycled from the the waste lithium-ion batteries containing NCM (nickel-cobalt-manganese) cathodes by a $H_2$ and C-reduction process. The recycled transition metal sulfate solutions are used in a co-precipitation process in a CSTR reactor to obtain the transition metal hydroxide. The NCM cathode materials (Ni:Mn:Co=5:3:2) are prepared from the transition metal hydroxide by calcining with lithium carbonate. X-ray diffraction and scanning electron microscopy analyses show that the cathode material has a layered structure and particle size of about 10 ${\mu}m$. The cathode materials also exhibited a capacity of about 160 mAh/g with a retention rate of 93~96% after 100 cycles.
Keywords
Scrap recycling; Lithium ion battery; Cathode; Precursor; Recycled transition metal;
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Times Cited By KSCI : 3  (Citation Analysis)
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