Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 12, Issue 2, Pages A28-A32Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3035981
Keywords
adsorption; calcination; carbon; electric resistance; electrodes; high-temperature effects; nanocomposites; nanotechnology; nanotubes; porous materials; scanning electron microscopy; secondary cells; titanium compounds; transmission electron microscopy
Funding
- Ministry of Knowledge Economy, Republic of Korea
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A nanocomposite between carbon and nanotube TiO2 (CNTT) was prepared by addition of activated carbon during hydrothermal treatment of TiO2 and following high-temperature calcinations. From morphological analysis using a scanning electron microscope, transmission electron microscope, and N-2 sorption profiles, it was revealed that nanotube TiO2 was homogeneously dispersed with carbon in nanoscale for CNTT materials. When applied into the anode in a lithium-ion battery, CNTT electrodes displayed higher cyclability and better rate capability. From ac-impedance measurement, the total resistance was smaller in the CNTT electrode due to a homogeneously dispersed carbon in nanoscale and a more porous structure.
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