PEDOT encapsulated ß-FeOOH nanorods: synthesis, characterization and application for sodium-ion batteries

Sodium-ion batteries (NIBs) are receiving attention again for emerging grid-scale energy storage needs. Exploring and developing NIB anode materials with excellent electrochemical properties from Earth-abundant elements are of important scientific and practical significance. Herein, we have designed...

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Bibliographic Details
Published inElectrochimica acta Vol. 238; p. 330
Main Authors Zhang, Meng, Han, Dianhui, Lu, Pengxian
Format Journal Article
LanguageEnglish
Published Oxford Elsevier BV 01.06.2017
Subjects
Batteries
Causation
Chemical synthesis
Composite materials
Electrochemical analysis
Electrodes
Encapsulation
Energy storage
Ions
Nanorods
Nanotechnology
Rechargeable batteries
Sodium
Sodium-ion batteries
Storage batteries
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Summary:Sodium-ion batteries (NIBs) are receiving attention again for emerging grid-scale energy storage needs. Exploring and developing NIB anode materials with excellent electrochemical properties from Earth-abundant elements are of important scientific and practical significance. Herein, we have designed poly(3,4-ethylenedioxythiophene) (PEDOT) encapsulated β-FeOOH nanorods as NIB anodes, which can be synthesized through a two-step method including surfactant-assisted hydrothermal synthesis of β-FeOOH nanorods and encapsulation of the obtained nanorods. The β-FeOOH@PEDOT nanorodes deliver a high discharge capacity of 726 mAh g-1 and maintain the reversible capacity of 468 mAh g-1 over fifty cycles. Based on a series of detailed characterizations and comparison experiments, we analyzed the sodium storage process of β-FeOOH@PEDOT nanorodes and proposed the causation of PEDOT shells improving electrochemical properties.
ISSN:0013-4686
1873-3859