首页|Synergetic Contributions from the Components of Flexible 3D Structured C/Ag/ZnO/CC Anode Materials for Lithium-Ion Batteries

Synergetic Contributions from the Components of Flexible 3D Structured C/Ag/ZnO/CC Anode Materials for Lithium-Ion Batteries

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Low electronic conductivity and large volume changes during the(de)lithiation process are the two main challenges for ZnO anode materials used for lithium-ion batteries(LIB).Here,a free-standing,flexible,and binder-free LIB electrode composed of ZnO nanorods and carbon cloth(CC)is fabricated.This is then decorated with Ag nanoparticles and finally coated by an amorphous carbon layer to form the hybrid electrode:(C@(Ag&ZnO)).The voids among the nanorods are sufficient to accommodate the volume expansion of the ZnO while the flexible CC,which acts as the current collector,relieves the volume change-induced stress.The Ag nanoparticles are effective in improving the conductivity.This composite electrode shows excellent LIB performance with a stable long cycling life over 500 cycles with a reversible capacity of 1093 mAh g-1 at a current density of 200 mA g-1.It also shows good rate performance with reversible capacity of 517 mAh g-1 under a high-current density of 5000 mA g-1.In situ Raman spectroscopy is conducted to investigate the contributions of the amorphous carbon layer to the capacity of the whole electrode and the synergy between the CC and ZnO nanorods.

binder-freein situ Raman spectroscopylithium-ion batteriesZnO nanorods

Huang Xiao、Shuangpeng Li、Jiaying Zhou、Chenyu Zhao、Yi Yuan、Xiaohong Xia、Yuwen Bao、Manon Louren?o、Kevin Homewood、Yun Gao

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Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials,Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry,School of Materials Science & Engineering,Hubei University,Wuhan 430062,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaHubei Provincial Department of Science and TechnologyWuhan Science and Technology BureauOverseas Expertise Introduction Center for Discipline Innovation

1187414412174092U21A205002019CFA0792020010601012163D18025

2023

10.1002/eem2.12537

能源与环境材料(英文)

能源与环境材料(英文)

CSCD
ISSN：
年,卷(期)：2023.6(6)
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