Journal
JOURNAL OF POWER SOURCES
Volume 297, Issue -, Pages 442-448Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2015.08.012
Keywords
Coaxial fiber; Manganese dioxide; Nanosheet network; Anode; Lithium ion batteries
Funding
- National Natural Science Foundation of China [21174119]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry [200549]
- Research Foundation of Education Bureau of Hunan Province, China [15B233]
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A novel manganese dioxide (MnO2) nanosheet network grown on nickel/polyvinylidene fluoride (Nil PVDF) coaxial fiber membrane is successfully fabricated by a three-step route: the polyvinylidene fluoride fiber membrane is prepared by electrospinning method, and then the Ni(shell)/PVDF(core) coaxial fiber membrane with core shell structure can be obtained by the electroless deposition, and finally the manganese dioxide nanosheet network grown on Ni/PVDF coaxial fiber membrane can be achieved by using a simple hydrothermal treatment. This as-prepared binder-free and flexible composite membrane is directly used as anode for lithium ion batteries. The excellent electrochemical performance of the composite membrane can be attributed to the unique combinative effects of nanosized MnO2 network and conductive Ni/PVDF fiber matrix as well as the porous structure of composite fiber membrane. (C) 2015 Elsevier B.V. All rights reserved.
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