Li sub(4)Ti sub(5)O sub(12) modified with Ag nanoparticles as an advanced anode material in lithium-ion batteries
A three-step solid state synthesis was used to produce powders of spinel phase Li sub(4)Ti sub(5)O sub(12) with crystallite size in a few hundred nanometers range. This was followed by surface modification through the deposition of 2-10 nm Ag nanoparticles, as verified by scanning and transmission e...
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| Veröffentlicht in: | Journal of power sources 2014-01, Vol.245, p.764-771 |
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| container_title | Journal of power sources |
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| creator | Krajewski, M Michalska, M Hamankiewicz, B Ziolkowska, D Korona, K P Jasinski, J B Kaminska, M Lipinska, L Czerwinski, A |
| description | A three-step solid state synthesis was used to produce powders of spinel phase Li sub(4)Ti sub(5)O sub(12) with crystallite size in a few hundred nanometers range. This was followed by surface modification through the deposition of 2-10 nm Ag nanoparticles, as verified by scanning and transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. The electrochemical performance of these Li sub(4)Ti sub(5)O sub(12)/n-Ag composite powders was examined by chronopotentiometry in three-electrode Swagelok cells. These measurements showed excellent high-rate performance and remarkably good cydability of the fabricated powders. Specifically, capacity retention in excess of 86% after raising the discharge current from 1C to 10C and less than 6% of capacity loss after 50 charge/discharge cycles at 1C current rate were measured. |
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This was followed by surface modification through the deposition of 2-10 nm Ag nanoparticles, as verified by scanning and transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. The electrochemical performance of these Li sub(4)Ti sub(5)O sub(12)/n-Ag composite powders was examined by chronopotentiometry in three-electrode Swagelok cells. These measurements showed excellent high-rate performance and remarkably good cydability of the fabricated powders. 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| identifier | ISSN: 0378-7753 |
| ispartof | Journal of power sources, 2014-01, Vol.245, p.764-771 |
| issn | 0378-7753 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Crystallites Deposition Diffraction Discharge Lithium-ion batteries Nanoparticles Scanning electron microscopy Silver X-rays |
| title | Li sub(4)Ti sub(5)O sub(12) modified with Ag nanoparticles as an advanced anode material in lithium-ion batteries |
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