Lithium Intercalation Properties of Porous Anatase TiO2 with Bimodal Pore Size Distribution

Shinya Suzuki; Akira Ogawa; Masaru Miyayama

doi:10.4028/www.scientific.net/KEM.350.187

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Lithium Intercalation Properties of Porous Anatase TiO₂ with Bimodal Pore Size Distribution

Abstract:

The lithium intercalation properties of anatase TiO2 electrodes with a bimodal pore size distribution were examined. Porous anatase TiO2 was prepared by hydrolyzing titanium tetrabutoxide using polyoxietylene cetyl ether as a surfactant and its subsequent calcination at 500°C for 4 hours. A porous anatase TiO2 electrode with a relatively large pore volume and 50-nm-diamater pores showed a discharge capacity of approximately 150 mAh g-1. It maintained a relatively large discharge capacity of 125 mAh g-1 at a current density of 1 A g-1, and exhibited a good high-rate capability.

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Periodical:

Key Engineering Materials (Volume 350)

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187-190

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.350.187

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Online since:

October 2007

Authors:

Shinya Suzuki, Akira Ogawa, Masaru Miyayama

Keywords:

Anatase TiO₂, Li⁺ Transport, Lithium Intercalation, Lithium-Ion Battery, Porous Structure

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References

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[2] 0 Specific Capacity, Q / mAh (g-TiO2) -1 Potential, E / V (vs. Li+ /Li) 50 mA g-1 100 mA g-1 200 mA g-1 500 mA g-1 1 A g-1 0 50 100 150.

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[2] 0 Specific Capacity, Q / mAh (g-TiO2) -1 Potential, E / V (vs. Li+ /Li) 50 mA g-1 100 mA g-1 200 mA g-1 Figure 3. Discharge curves for Comp-LP at various current densities. Figure 4. Discharge curves for Comp-HP at various current densities.

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