Preparation and Performances of Li₄Ti₅O₁₂/C as Anode Material for Lithium-Ion Batteries

Abstract:

Lithium titanate was poor conductive materials, this disadvantage limited its commerical use in high current applications for future hybrid electric vehicles. Li4Ti5O12/C has been examined in order to improved the electronic conductivities. We selected polyvinyl alcohol (PVA) as the carbon source to synthesize Li4Ti5O12/C composite. Different PVA additions at m(PVA)/m(Li4Ti5O12) = 5%, 10%, 15% were investigated along with the structure and electrochemical performances. The addition of PVA with a amount of 5% and 10% whould significantly improved electrochemical performance of Li4Ti5O12. When charged at 0.5 C rate, both of the samples could maintain an initial reversible capacity of about 146 mAh/g and 159 mAh/g.

• Periodical: Applied Mechanics and Materials (Volume 189)
• Pages: 185-188
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.189.185
• Online since: July 2012
• Authors: Fang Gu
• Keywords: Anode Material, Coating, Li₄Ti₅O₁₂/C, Lithium-Ion Battery

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