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Journal of Inorganic Materials

Journal of Inorganic Materials >

2009 , Vol. 24 >Issue 3: 531 - 534

DOI: https://doi.org/10.3724/sp.j.1077.2009.00531

Research Paper

Preparation of Li4Ti5O12 with Hydration Titanium Dioxide for Electrochemical Hybrid Capacitor

  • ZANG Ge ,
  • BAO Li-Ying ,
  • SU Yue-Feng ,
  • WU Feng ,
  • CHEN Shi
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  • School of Chemical Engineering & Environment, Beijing Institute of Technology, National Development Center of HiTech Green Materials, Beijing 100081, China

Received date: 2008-06-04

  Revised date: 2008-12-01

  Online published: 2009-05-20

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Abstract

A novel pseudonanocrystalline Li4Ti5O12 spinel was prepared using hydration titanium dioxide as starting materials. Hydration titanium dioxide added with activated carbon, citric acid and lithium salt was heattreated at 800℃ in air for 12h after desiccation. The spinel shows a good lithiation performance. Its reversible capacity is more than 152.3mAh/g at current density of 85mA/g, the first chargedischarge efficiency is 99.3% and its chargedischarge potential is flat and steady. Then, the Li4Ti5O12/AC hybrid capacitors using Li4Ti5O12 as the anode and activated carbon as the cathode is assembled. Electrochemical tests show that at current density of 85mA/g, the specific capacity of Li4Ti5O12 electrode is 96.4mAh/g and the efficiency of hybrid capacitor is 96.5%.

Key words： electrochemical hybrid capacitor; hydration titanium dioxide; Li4Ti5O12

Cite this article

ZANG Ge , BAO Li-Ying , SU Yue-Feng , WU Feng , CHEN Shi . Preparation of Li4Ti5O12 with Hydration Titanium Dioxide for Electrochemical Hybrid Capacitor[J]. Journal of Inorganic Materials, 2009 , 24(3) : 531 -534 . DOI: 10.3724/sp.j.1077.2009.00531

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