Characterization and electrochemical performance of Manganese oxide with carbon nano tubes as negative electrode for lithium batteries

4th International Conference on Advanced Sciences

工业技术;自然科学

Shenouda, Atef Y.^1

Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87, Tebbin, Helwan, Egypt^1

关键词: Charge transfer resistance;    Discharge current density;    Electrochemical performance;    Field emission scanning electron microscopes;    Lithium battery anode;    Mn3O4/CNT;    Particle morphologies;    Specific discharge capacity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/464/1/012006/pdf
DOI  :  10.1088/1757-899X/464/1/012006

来源: IOP

【 摘 要 】

Different ratios of Mn3O4/CNT (carbon nano tubes) samples were prepared by ultrasonic and hydrothermal reactions. The added ratios of CNT: Mn wt./wt. were 0, 5, 15, 25, 35 and 50%. The phases of the samples were identified by X-ray diffraction (XRD). The particle morphology was studied with a field emission scanning electron microscope (FESEM). The lowest charge transfer resistance, Rct was 19.18 Ω with cell of Mn3O4/35% CNT. For Li / Mn3O4-35% CNT cell, the specific discharge capacity was about 688 mAhg-1 after 100 cycles, which was the highest value among the other cells at discharge current density 0.02Acm-2.