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Research Article | Open Access

Preparation and characterization of Li4Ti5O12 synthesized using hydrogen titanate nanowire for hybrid super capacitor

Jong Hyun KIM, Jung Rag YOON*()
R&D Center, Samwha Capacitor Co., Ltd., Yongin, Gyeonggi 449-884, R.O. Korea
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Abstract

The electrical characteristics of hybrid super capacitor were evaluated by synthesizing LTO (Li4Ti5O12) using TiO2 having a hydrogen titanate nanowire form. Preparation of the hydrogen titanate nanowire was implemented by using TiO2 having size of 60 nm and NaOH, and performing synthesis at 70 ℃ for 6 h with a sonochemical method. LTO compound was synthesized at 150 ℃ for 36 h and at 180 ℃ for 36 h respectively by using the hydrogen titanate nanowire and LiOH·H2O as starting materials with a hydrothermal method. The final LTO compound was synthesized at 700 ℃ for 6 h using a solid-state method. As a result of manufacturing the hybrid super capacitor using LTO synthesized at 180 ℃ for 36 h with the hydrothermal method, a capacity of 198 mA·h/g has been achieved compared to a theoretical capacity of 172 mA·h/g of existing LTO, and thus, the capacity has been increased by about 13%. Further, such excellent cycle performance has ensured its possibility as a high-capacity capacitor.

Keywords

LTO (Li4Ti5O12)lithium titanate oxidehydrogen titanate nanowirehybrid super capacitor

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Journal of Advanced Ceramics
Volume 2 Issue 3,
September 2013
Pages 285-290
DOI: 10.1007/s40145-013-0073-x
Cite this article:
KIM JH, YOON JR. Preparation and characterization of Li4Ti5O12 synthesized using hydrogen titanate nanowire for hybrid super capacitor. Journal of Advanced Ceramics, 2013, 2(3): 285-290. https://doi.org/10.1007/s40145-013-0073-x
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