CAJ | 학술논문

以葡萄糖为碳源，硫代硫酸钠为硫源，一锅法原位复合制备S／C复合材料前驱体，然后在充放电循环过程中原位电化学法制备得到了C u2 S／C复合材料，并对其作为锂离子电池正极材料的电化学储锂性能进行了研究。充放电测试结果表明， Cu2 S／C复合材料具有良好的循环性能，首次可逆容量为255?4 mAh?g －1，100次循环后容量仍保持在252?3mAh?g －1，容量衰减很少。同时，分别在0?2，0?5和1C（1C＝337mA?g －1）电流密度下进行充放电性能测试，容量分别为232?8，207?6，183?8 m A h?g －1，呈现出较好的倍率性能。
이포도당위탄원，류대류산납위류원，일과법원위복합제비S／C복합재료전구체，연후재충방전순배과정중원위전화학법제비득도료C u2 S／C복합재료，병대기작위리리자전지정겁재료적전화학저리성능진행료연구。충방전측시결과표명， Cu2 S／C복합재료구유량호적순배성능，수차가역용량위255?4 mAh?g －1，100차순배후용량잉보지재252?3mAh?g －1，용량쇠감흔소。동시，분별재0?2，0?5화1C（1C＝337mA?g －1）전류밀도하진행충방전성능측시，용량분별위232?8，207?6，183?8 m A h?g －1，정현출교호적배솔성능。
In this paper , using glucose as carbon source and sodium thiosulfate as sulfur source , Cu2 S/C composite is prepared through an in situ electrochemical process by one‐pot synthesized S/C composite as precursor . As to its electrochemical lithium storage performance of lithium ion battery cathode material are studied . The experimental results show that the as‐prepared Cu2 S/C composite can deliver a reversible capacity of 255?4 mAh?g -1 at the first cycle , and a high reversible capacity of 252?3 mAh?g -1 remained even after 100 cycles ,with the negligible capacity loss .Furthermore ,the composite shows a superior rate capacity of 232?8 ,207?6 and 183?8 mAh?g-1 at a current density of 0?2 ,0?5 and 1 C (1 C=337 mA?g-1 ) .