摘要
Vanadium oxides have recently attracted widespread attention due to their unique advantages and have demonstrated promising chemical and physical properties for energy storage.This work develops a mild and efficient method to stereoassemble hollow V_(2)O_(5)@FeOOH heterostructured nanoflowers with thin nanosheets.These dual-phased architectures possess multiple lithiation voltage plateau and well-defined heterointerfaces facilitating efficient charge transfer,mass diffusion,and self-reconstruction with volumetric strain.As a proof of concept,the resulting V_(2)O_(5)@FeOOH hollow nanoflowers as an anode material for lithiumion batteries(LIBs)realize high-specific capacities,long lifespans,and superior rate capabilities,e.g.,maintaining a specific capacity as high as 985 mAhg^(-1) at 200mAg^(-1) with good cyclability.
基金
This work was financially supported by the National Natural Science Foundation of China(51872139,51902158,21706128)
the NSF of Jiangsu Province(BK20170045)
the Recruitment Program of Global Experts(1211019)
the“Six Talent Peak”Project of Jiangsu Province(XCL-043,XCL-021)
the Natural Science Foundation of Jiangsu Higher Education Institutions(19KJB430002).
