阳极
静电纺丝
材料科学
碳纳米纤维
碳纤维
电化学
化学工程
纳米纤维
锂(药物)
离子
复合材料
纳米技术
电极
碳纳米管
化学
有机化学
聚合物
复合数
医学
物理化学
工程类
内分泌学
作者
Xuhui Wang,Na Sun,Xufeng Dong,Min Qi,Hao Huang
标识
DOI:10.1002/asia.202201198
摘要
The development of flexible lithium-ion batteries (FLIBs) is restrained by traditional rigidity anodes. Carbon nanofiber (CNF) is a promising anode material owing to its high specific surface and superior ion transportation capability. However, the low amount of active material loaded on the CNFs and the poor stability during long cycling restrain their applications. Herein, a SiO2 @carbon sphere/SiO2 -CNF self-standing anode was prepared via alternate electrospraying-electrospinning. The SiO2 content of the anode was increased through the electrospraying SiO2 @carbon spheres layers, and the electrospun SiO2 -CNFs as robust layers enhanced the stability of the anode. The self-standing anode exhibited 633 mA h g-1 in the initial cycle and maintained a 70% Coulomb efficiency for 1000 cycles at a current density of 100 mA g-1 , which could be applied in FLIB and other electrochemical storage devices.
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