Core-shell structured Fe3O4-carbon composite based anode for the high performance lithium-ion battery
발표자
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초록
내용
In this study, we demonstrated Iron oxide(Fe3O4)-carbon tube composite as an anode for high-performance lithium ion batteries (LIB). The structure of iron oxide particles was embedded in porous carbon tubes with high conductivity. In order to make the core-shell structure of the carbon tube and Fe3O4 particles, electrospinning was carried out by using a dual nozzle. The improved specific surface area was carried out through PVP (Polyvinylpyrrolidone) water extraction and electronic images (SEM) confirmed the formation of 1D tube of carbon and iron oxide. The results show high cycles stability of reversible capacity (500 mAh/g) after 100 cycles. The improved electrochemical performance is attributed to the unique hollow core-shell structure, offering sufficient voids for alleviating the volume changes of iron oxide during lithiation/delithiation process. Our strategies demonstrated here provide us with a novel way to fabricate advanced anode materials for high-performance LIB.