Electrical, electrochemical, and cycling studies of high-power layered Li(Li0.05Ni0.7 − xMn0.25Cox)O2 (x = 0, 0.1, 0.3, 0.5, and 0.7) cathode materials for rechargeable lithium ion batteries

• Published in: Ionics Vol. 24; no. 4; pp. 1007 - 1017
• Main Authors: Nichelson, A., Karuppasamy, K., Thanikaikarasan, S., Anil Reddy, P., Kollu, Pratap, Karthickprabhu, S., Sahaya Shajan, X.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2018; Springer Nature B.V
• Subjects: Ambient temperature; Cathodes; Chemistry; Chemistry and Materials Science; Condensed Matter Physics; Cycles; Electrochemical analysis; Electrochemistry; Electrode materials; Electrodes; Electron microscopy; Energy Storage; Ions; Lithium; Lithium-ion batteries; Optical and Electronic Materials; Original Paper; Rechargeable batteries; Renewable and Green Energy; Sol-gel processes; Cyclic voltammetry; Nanomaterials; Li-ion batteries; Sol–gel technique
• ISSN: 0947-7047; 1862-0760
• DOI: 10.1007/s11581-017-2255-y

The enriched lithium ion containing layered oxide cathode materials Li(Li 0.05 Ni 0.7 −  x Mn 0.25 Co x )O 2 have been prepared by using facile sol–gel technique. The phase purity and crystalline nature of the layered oxide cathodes have determined by X-ray diffraction analysis. Surface morphology and elemental analysis have been carried out using scanning electron microscopy with energy dispersive analysis by X-rays and HR-TEM. Cyclic voltammetry analysis of the lithium-enriched cathode material shows a well redox performance at electrode–electrolytic interface. The Li(Li 0.05 Ni 0.7 −  x Mn 0.25 Co x )O 2 cathode shows the most promising electrochemical properties under different conditions in which an appropriate rising of discharge capacity (i.e., 167 mAh g −1 at 0.5 C) and cycling stability (i.e., capacity retention: 83% at 1 C after 20 cycles, cutoff voltage 2.8–4.5 V) at ambient temperature. These unique properties allow the effective use of these cathode materials as positive electrodes for the development of rechargeable lithium ion batteries. Graphical abstract ᅟ