CAJ | 학술논문

通过静电纺丝法制备PAN/PVP/C4H6ZnO4复合纳米纤维，高温煅烧得到ZnO纳米纤维。分别通过X射线衍射(XRD)、扫描电子显微镜(SEM)、热重分析(TG)等手段对材料进行表征分析，并进一步研究其作为锂离子电池负极材料的电化学性能。SEM结果表明PAN/PVP/C4H6ZnO4复合纳米纤维直径大小约360 nm，煅烧后得到约150 nm的ZnO纳米纤维。电化学性能结果显示ZnO纳米纤维负极材料首次充放电比容量分别为767和1208 mAh/g，循环20周后比容量为342 mAh/g，首周循环效率为63.5%。
통과정전방사법제비PAN/PVP/C4H6ZnO4복합납미섬유，고온단소득도ZnO납미섬유。분별통과X사선연사(XRD)、소묘전자현미경(SEM)、열중분석(TG)등수단대재료진행표정분석，병진일보연구기작위리리자전지부겁재료적전화학성능。SEM결과표명PAN/PVP/C4H6ZnO4복합납미섬유직경대소약360 nm，단소후득도약150 nm적ZnO납미섬유。전화학성능결과현시ZnO납미섬유부겁재료수차충방전비용량분별위767화1208 mAh/g，순배20주후비용량위342 mAh/g，수주순배효솔위63.5%。
The PAN/PVP/C4H6ZnO4 composite nanofibers were prepared by electrospinning technique, then ZnO nanofibers were obtained by annealing at high temperature. The structure and morphology of the obtained materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermogravimetric analysis (TG). The electrochemical properties of ZnO nanofibers as anode materials for Li-ion batteries were also studied. The SEM results show that the average diameter of PAN/PVP/C4H6ZnO4 composite nanofibers and the size of ZnO nanofibers were about 360 and 150 nm, respectively. The results indicate that the first charge and discharge special capacities are 767 and 1 208 mAh/g, respectively. After 20 cycles, the reversible special capacity maintains at 342 mAh/g, and the initial cycle efficiency is 63.5%.