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Number of results
2015 | 127 | 4 | 1026-1028
Article title

Sol-Gel Synthesis of Nanocomposite Cu-Li₄Ti₅O_{12} Structures for Ultrahigh Rate Li-Ion Batteries

Content
Title variants
Languages of publication
EN
Abstracts
EN
In this study, spinel Li₄Ti₅O_{12} materials were successfully synthesized by a simple and facile sol-gel process and electroless copper deposition techniques. The characteristics of the as-prepared Li₄Ti₅O_{12} and Cu-Li₄Ti₅O_{12} were examined by X-ray diffraction and scanning electronic microscopy, while the electrochemical performances including charge/discharge and rate performance tests were also investigated. Cu-Li₄Ti₅O_{12} electrode demonstrated the superior initial discharge capacity and rate capability to Li₄Ti₅O_{12} electrode, cycled between 1.0 and 2.5 V. The enhanced rate capability can be attributed to the higher Li^{+} diffusivity and lower charge-transfer resistance due to the electroless deposition of copper. Moreover, when both electrodes discharged with 80 C state of discharge conditions, the reversible capacities were further increased ım70 mAh g^{-1} with excellent cycling stability and almost no irreversible capability was observed during cycling.
Keywords
EN
Contributors
author
  • Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya, Turkey
author
  • Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya, Turkey
author
  • Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya, Turkey
author
  • Sakarya University, Engineering Faculty, Department of Metallurgical & Materials Engineering, Esentepe Campus, 54187, Sakarya, Turkey
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv127n4044kz
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