NANOSTRUCTURED METAL OXIDE-BASED MATERIALS AND THEIR APPLICATION IN BATTERIES
DU GUOJUN
DU GUOJUN
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Abstract
THE RESEARCH PRESENTED IN THIS THESIS IS FOCUSED ON THE DEVELOPMENT OF THE ANODE MATERIAL FOR THE LI-ION BATTERY AND THE NOVEL BIFUNCTIONAL CATALYST FOR THE METAL-AIR BATTERY. FIRSTLY, MESOPOROUS SPHERICAL LI4TI5O12/C WAS SUCCESSFULLY FABRICATED VIA POROUS SPHERICAL TIO2 AS TITANIUM SOURCE, LITHIUM ACETATE AS LITHIUM SOURCE AND CETYLTRIMETHYLAMMONIUM BROMIDE (CTAB) AS CARBON SOURCE FOLLOWED BY CALCINATION. WITHOUT CTAB ADDITION, POROUS MICRO-SPHERICAL LI4TI5O12 CAN BE OBTAINED. THESE MATERIALS ACHIEVED HIGH REVERSIBLE CAPACITY, GOOD CYCLING STABILITY AND IMPRESSIVE RATE CAPACITY FOR THE LI-ION BATTERY. SECONDLY, MNO2/CO3O4 HYBRID AS A NEW AIR ELECTRODE MATERIAL WAS SYNTHESIZED VIA A TWO-STEP HYDROTHERMAL METHOD. THE HYBRID NANOMATERIALS DISPLAYED GOOD BIFUNCTIONAL OXYGEN REDUCTION REACTION/OXYGEN EVOLUTION REACTION (ORR/OER) ACTIVITY AND CYCLIC STABILITY IN ZN-AIR BATTERY AND LI-AIR BATTERY. FINALLY, AG1.8MN8O16 NANORODS/GRAPHENE HYBRID WAS PREPARED BY THE SELF-ASSEMBLY PROCESS. IT ALS
Keywords
Metal oxide，Anode material，Li-ion battery，Bifunctional catalyst，Metal-air battery
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Date
2014-09-30
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Thesis