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Synthesis and Characterization of Spinel Li_4Ti_5O_{12} Anode Material by CTAB Assisted Sol-Gel Method

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Kiliç Dokan F., Şahan H., Özdemır B., Özdemır N., Patat Ş.

Acta Physica Polonica A

2014

vol. 125

issue 2

648-649

Recently, there has been considerable interest in Li_4Ti_5O_{12} as a potential anode for use in lithium ion batteries. It has many advantages compared to the currently used graphite. It has a good reversibility but no structural change. The material has a theoretical specific capacity of 175 mAh g^{-1}. Li_4Ti_5O_{12} powders are usually synthesized by a solid-state reaction of lithium and titanium salts. This method was generally preferred because the synthesis procedures are simple. But there are some disadvantages of solid-state methods such as larger particle size of the products, inhomogeneous distribution, lack of stoichiometry control, etc. These disadvantages can be overcome by sol-gel method. Using surfactant in sol-gel method is easy control on crystal growth and size of the desired products.

Effects of TiO_2 Source on the Electrochemical Performance of Li_4Ti_5O_{12}

100%

Kiliç Dokan F., Şahan H., Özdemır N., Özdemır B., Patat Ş.

Acta Physica Polonica A

2014

vol. 125

issue 2

650-651

This study examined the formation mechanism of Li_4Ti_5O_{12} by a ball mill assisted solid-state reaction between Li_2CO_3 and TiO_2 for applications in lithium ion batteries, also effects of TiO_2 source such as rutile type and anatase type on the electrochemical performance of Li_{4}Ti_5O_{12}. However, it is believed that the particle properties may depend significantly on the synthesis process and starting materials, which lead to final products with a range of sizes, morphologies, and even phases.

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2 Acta Physica Polonica A

2 2014

2 Kiliç Dokan F.

2 Patat Ş.

2 Özdemır B.

2 Özdemır N.

2 Şahan H.

Search results

Synthesis and Characterization of Spinel Li_4Ti_5O_{12} Anode Material by CTAB Assisted Sol-Gel Method

Effects of TiO_2 Source on the Electrochemical Performance of Li_4Ti_5O_{12}