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One-Dimensional, Additive-Free, Single-Crystal TiO2 Nanostructured Anodes Synthesized by a Single-Step Aerosol Process for High-Rate Lithium-Ion Batteries

DSpace at IIT Bombay

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Title One-Dimensional, Additive-Free, Single-Crystal TiO2 Nanostructured Anodes Synthesized by a Single-Step Aerosol Process for High-Rate Lithium-Ion Batteries
 
Creator CHADHA, TS
TRIPATHI, AM
MITRA, S
BISWAS, P
 
Subject aerosols
chemical vapor deposition
lithium-ion batteries
nanostructures
titanium dioxide
CONTROLLED MORPHOLOGY
PARTICLE-SIZE
ANATASE
PERFORMANCE
COMPOSITES
ELECTRODE
TITANIA
STORAGE
INTERCALATION
NANOCRYSTALS
 
Description Highly oriented, single crystal dendritic columnar nanostructures of titanium dioxide (TiO2) were fabricated by using single-step aerosol chemical vapor deposition (ACVD) on stainless-steel current collectors for use as high-rate lithium-ion battery anodes. The synthesized nanostructures exhibited the highest specific capacity (183.5 mAhg(-1) after 100 cycles at 1 C rate) ever reported for anatase TiO2 without the use of any conductive additive or binding agents. Exceptional cycling performance and rate capability were also demonstrated making the structures an ideal electrode for high-rate applications, exhibiting no change in nanostructure morphology even after 100 cycles. At a current density of 16.75 Ag-1 (50 C rate), the specific charge capacity of the columnar nanostructures was 278% higher than that of granular nanostructures synthesized by using the same technique. This facile, low-cost synthesis of high-performance anodes thus provides a single-step, scalable alternative to the conventional fabrication of anode materials.
 
Publisher WILEY-V C H VERLAG GMBH
 
Date 2014-12-29T04:55:15Z
2014-12-29T04:55:15Z
2014
 
Type Article
 
Identifier ENERGY TECHNOLOGY, 2(11)906-911
2194-4288
2194-4296
http://dx.doi.org/10.1002/ente.201402054
http://dspace.library.iitb.ac.in/jspui/handle/100/17129
 
Language English