Conductivity enhancement and thin-film processing of Li4Ti5O12(LTO) Spinel for Li battery applications

研究成果: Conference contribution

4 引文 斯高帕斯(Scopus)

摘要

Spinel Li4Ti5O12 has been considered as one of the most prospective anode materials for Li-ion microbatteries. Homogeneous and crack-free Li4Ti5O12 film with thickness around 200 nm have been deposited on Pt/Ti/SiO2/Si(100) substrate by r.f. magnetron sputtering. The influence of the post-annealing treatment on the phase composition, structure and electrochemical properties was studied. The Li/Ti molar ratio in the films decreased with an increasing oxygen fraction. The amount of Li4Ti5O12 phase increases with increasing annealing temperature from 500°C to 700°C. Electrochemical characterization of samples heat-treated at 600°C presents a redox reaction around 1.55 V indicating that the film contains Li4Ti5O12 spinel. The high capacity and good reversibility in the sample post-annealing treatment at 600 °C can be attributed to high crystallinity of Li4Ti5O12 and amorphous TiO2 phase.

原文English
主出版物標題Batteries
編輯J. W. Fergus
發行者Electrochemical Society Inc.
頁面37-43
頁數7
版本2
ISBN(電子)9781607685395
DOIs
出版狀態Published - 2015
事件14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, United Kingdom
持續時間: 2015 7月 262015 7月 31

出版系列

名字ECS Transactions
號碼2
68
ISSN(列印)1938-5862
ISSN(電子)1938-6737

Other

Other14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
國家/地區United Kingdom
城市Glasgow
期間15-07-2615-07-31

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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