摘要
为了获得具有一定柔性和较好电化学性能的钠离子电池负极材料,采用静电纺丝和碳化工艺制备Fe_(2)O_(3)/碳纳米纤维(Fe_(2)O_(3)/CNF)纳米纤维膜,用于钠离子电池(SIBs)柔性负极材料。通过扫描电镜、TGA测试、元素分析、Raman测试、XRD测试、电池充放电性能测试研究碳化前后Fe_(2)O_(3)/CNF纳米纤维膜的形貌结构及电化学性能。结果表明,复合纳米纤维膜在碳化条件为700℃,120 min时碳纳米纤维能很好地包覆Fe_(2)O_(3),其次所制得的1%Fe_(2)O_(3)/CNF循环性和柔性最好,在钠离子电池中具有207.3 mAh/g的可逆充电容量,45圈循环后比容量仍保持242 mAh/g。
In order to achieve flexible good-performance anode material for sodium ion batteries(SIBs),Fe_(2)O_(3)/CNF nanofiber membranes are prepared by electrospinning and carbonization processes,which are used as flexible anode materials.The morphology and properties of Fe_(2)O_(3)/CNF nanofiber membranes are studied through SEM test,TGA test,element analysis,Raman test,XRD test,battery charge and discharge performance test.The results show that Fe_(2)O_(3) can well embedded in the carbon nanofiber when the carbonization conditions are 700℃and 120 min.Secondly,the 1%Fe_(2)O_(3)/CNF prepared has the best cycling performance and flexibility.It has a reversible charging capacity of 207.3 mAh/g and 242 mAh/g after 45 cycles in a sodium ion battery.
作者
赵佩丽
赵欢欢
占海华
葛烨倩
Zhao Peili;Zhao Huanhuan;Zhan Haihua;Ge Yeqian(College of Textile & Garment, Shaoxing University, Shaoxing Zhejiang 312000, China;Zhejiang Sub-center of National Carbon fiber Engineering Technology Research Center, Shaoxing Zhejiang 312000, China;Shaoxing Sub-center of National Engineering Research Center for Fiber composites, Shaoxing Zhejiang 312000, China)
出处
《合成技术及应用》
2022年第1期7-11,共5页
Synthetic Technology & Application
基金
浙江省自然科学基金(LGJ18E030001)
绍兴市技术创新计划项目(2019B22002)。
