首页> 外文期刊>Arabian Journal for Science and Engineering >MCNT-Reinforced Na_3Fe2(PO_4)_3 as Cathode Material for Sodium-Ion Batteries
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MCNT-Reinforced Na_3Fe2(PO_4)_3 as Cathode Material for Sodium-Ion Batteries

机译:MCNT增强的Na_3Fe2(PO_4)_3作为钠离子电池的阴极材料

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摘要

An iron-based phosphate composite (Na_3Fe_2(PO4)_3@MCNT) has been synthesized by solid-state reaction method. As asodium-ion battery cathode material, Na_3Fe_2(PO_4)_3@MCNT composite exhibits excellent reversible specific capacity of101 mA h g~(−1) at 10 mA g~(−1) (0.1 C) and can reach high rate capability up to 96 mA h g~(−1) after 500 cycles at 100 mA g~(−1)(1 C). The enhanced sodium-ion storage performance of iron-based phosphate is likely attributed to the increased electronicconductivity and intercalation–deintercalation kinetic of sodium-ion with a high sodium-ion diffusion coefficient of up to1.12×10~(−10) cm~2 s−1 by incorporation of multi-walled carbon nanotube (MCNT).
机译:通过固相反应法合成了铁基磷酸盐复合材料(Na_3Fe_2(PO4)_3 @ MCNT)。作为钠离子电池的正极材料,Na_3Fe_2(PO_4)_3 @ MCNT复合材料在10 mA g〜(-1)(0.1 C)时表现出101 mA hg〜(-1)的优异可逆比电容,并且可以达到高达在100 mA g〜(-1)(1 C)下经过500个循环后达到96 mA hg〜(-1)。铁基磷酸盐的钠离子存储性能增强可能归因于钠离子扩散系数高达1.12×10〜(-10)cm〜的钠离子的电导率增加和插层-脱嵌动力学通过掺入多壁碳纳米管(MCNT)达到2 s-1。

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