【摘 要】
：
以水热法合成了V2O5纳米管,再以热处理方法由单质硫与V2O5纳米管,制备了硫含量为36%和70%的硫-超导炭黑复合材料,扫描电镜测试表明,单质硫均匀的分散到高比表面积的V2O5纳米
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以水热法合成了V2O5纳米管,再以热处理方法由单质硫与V2O5纳米管,制备了硫含量为36%和70%的硫-超导炭黑复合材料,扫描电镜测试表明,单质硫均匀的分散到高比表面积的V2O5纳米管中.V2O5纳米管可有效减弱复合材料中硫及多硫化物在电解液中的溶解,提高硫复合材料的电化学性能.恒电流充放电测试表明,该硫-V2O5纳米管复合材料在首次循环过程中,放电容量达到将近530mAh/g.
The V2O5 nanotubes were synthesized by hydrothermal method. The sulfur-superconducting carbon black composites with 36% and 70% sulfur content were prepared by thermal treatment from elemental sulfur and V2O5 nanotubes. Scanning electron microscopy results showed that elemental sulfur Dispersed in high specific surface area of V2O5 nanotubes.V2O5 nanotubes can effectively reduce the dissolution of sulfur and polysulfides in the electrolyte and improve the electrochemical performance of sulfur composites.Volume charge and discharge tests show that the The sulfur-V2O5 nanotube composite discharge capacity reached nearly 530mAh / g during the first cycle.
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