Polypyrrole‐Coated Zinc Ferrite Hollow Spheres with Improved Cycling Stability for Lithium‐Ion Batteries | Zendy

Sun Xiaoran | Zendy; Zhang Hongwei | Zendy; Zhou Liang | Zendy; Huang Xiaodan | Zendy; Yu Chengzhong | Zendy

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Polypyrrole‐Coated Zinc Ferrite Hollow Spheres with Improved Cycling Stability for Lithium‐Ion Batteries

Author(s) -

Sun Xiaoran,

Zhang Hongwei,

Zhou Liang,

Huang Xiaodan,

Yu Chengzhong

Publication year - 2016

Publication title -

small

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.785

H-Index - 236

eISSN - 1613-6829

pISSN - 1613-6810

DOI - 10.1002/smll.201601143

Subject(s) - polypyrrole , materials science , anode , coating , polymerization , nanotechnology , chemical engineering , composite material , electrode , polymer , chemistry , engineering

Here, ZnFe 2 O 4 double‐shell hollow microspheres are designed to accommodate the large volume expansion during lithiation. A facile and efficient vapor‐phase polymerization method has been developed to coat the ZnFe 2 O 4 hollow spheres with polypyrrole (PPY). The thin PPY coating improves not only the electronic conductivity but also the structural integrity, and thus the cycling stability of the ZnFe 2 O 4 hollow spheres. Our work sheds light on how to enhance the electrochemical performance of transition metal oxide‐based anode materials by designing delicate nanostructures.

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