Characterization and electrochemical performance of Manganese oxide with carbon nano tubes as negative electrode for lithium batteries
[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.
[发布日期] [发布机构] Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87, Tebbin, Helwan, Egypt^1
[效力级别] 自然科学 [学科分类]
[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 [时效性]
