Choo, Sungho Kim, Hye Yeon Yoon, Dong Young Choi, Wonchang Oh, Si-Hyung Ju, Jeh Beck Ko, Jang Myoun Jang, Ho Cho, Won Il 2024-01-20T10:00:45Z 2024-01-20T10:00:45Z 2021-09-05 2014-05 0256-1115 https://pubs.kist.re.kr/handle/201004/126826 High energy nickel manganese cobalt oxide materials (HENMC) are one of the most viable cathode materials for a high energy density lithium ion battery (LIB), but they contain expensive and toxic cobalt (Co). We synthesized Co-free high energy nickel manganese oxide cathode materials (HENM) via a solid state reaction method and a coprecipitation method. Their structural and electrochemical properties were comparatively investigated using X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), inductively coupled plasma (ICP), electron probe micro-analysis (EPMA), particle size analysis (PSA) and electrochemical impedance spectroscopy (EIS). The co-precipitated HENM and the solid state fabricated HENM showed high capacities of 250 mAhg(-1) and 240 mAhg(-1), respectively. It suggests that the solid state fabricated method of HENM would be a good candidate for practical application as well as the co-precipitated one. English KOREAN INSTITUTE CHEMICAL ENGINEERS X-RAY-DIFFRACTION HIGH-CAPACITY ELECTRODES MN NI Electrochemical properties of Co-less layered transition metal oxide as high energy cathode material for Li-ion batteries Article 10.1007/s11814-014-0046-y 1 KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.31, no.5, pp.905 - 910 KOREAN JOURNAL OF CHEMICAL ENGINEERING 31 5 905 910 scie scopus kci ART001869640 000335576400024 2-s2.0-84899680780 Chemistry, Multidisciplinary Engineering, Chemical Chemistry Engineering Article X-RAY-DIFFRACTION HIGH-CAPACITY ELECTRODES MN NI Li Ion Battery High Capacity Cathode Nickel Manganese Oxide Solid State Method Co-precipitation