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Flexible Carbon Nanotube–Cu 2 O Hybrid Electrodes for Li‐Ion Batteries
Author(s) -
Goyal Anubha,
Reddy Arava L. M.,
Ajayan Pulickel M.
Publication year - 2011
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.201002051
Subject(s) - materials science , carbon nanotube , nanocomposite , electrolyte , electrode , separator (oil production) , chemical engineering , oxide , polymer , coating , nanotube , fluoride , nanotechnology , composite material , inorganic chemistry , metallurgy , chemistry , physics , engineering , thermodynamics
This study demonstrates the formation of a flexible and free‐standing carbon nanotube–copper oxide–poly(vinylidene fluoride) (CNT–Cu 2 O–PVDF) nanocomposite and its application as an electrode‐separator material for Li‐ion batteries. Binder‐free hybrid electrodes are obtained by conformally coating CNTs with Cu 2 O via electrodeposition and then embedding the resulting architecture into a porous poly(vinylidene fluoride‐hexafluoropropylene) PVDF‐HFP–SiO 2 polymer electrolyte membrane. The synergistic presence of high‐capacity transition metal oxides and conductive CNTs results in twice the reversible areal capacity of 2.3 mAh cm −2 as compared to 1.2 mAh cm −2 for pure CNTs.