Binder-free FTO-ZnO/Carbon Nanofiber Composite for Lithium-ion Battery

کد مقاله : 1192-17THECSI

نویسندگان

مهسا پناهی آذر *، فاطمه رازی استرایی دانشگاه تهران

چکیده مقاله

A high theoretical capacity anode material is tin oxide. However, its practical use in lithium-ion batteries has been limited by the volume growth and rapid capability fading during cycling (>300%), which causes SnO2 pulverization and extreme cycling deterioration. SnO2-based electrode materials have been thought to face major challenges due to their weak conductivity and electrochemical reversibility. Here, we show how to make FTO-ZnO/Carbon NF, which enables volume expansion and shortens the diffusion pathway for Li-ions. CNF is helpful in enhancing the nanocomposite's structural stability. Fluorine doping will increase the conductivity of SnO2 in this situation. Moreover, ZnO stopped Sn from aggregating, which gave rise to a stable and high discharge capacity. Due to its high capacity retention, high reversible and rate capacity (748 mAh.g-1 after 50 cycles at a current density of 100 mA.g-1), the proposed anode holds substantial potential for the effective development of ultrafast anode materials like Li-ion battery anodes.

کلیدواژه ها

Fluorine-doped tin oxide, carbon nanofiber, ZnO, anode, capacity, lithium-ion battery.

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