A different method for producing a flexible LiMn2O4/MWCNT composite electrode for lithium ion batteries
| Autor: | Mehmet Oguz Guler, Tugrul Cetinkaya, A. Akbulut, Hatem Akbulut |
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| Přispěvatelé: | Cetinkaya, T, Akbulut, A, Guler, MO, Akbulut, H, Sakarya Üniversitesi/Mühendislik Fakültesi/Metalurji Ve Malzeme Mühendisliği Bölümü, Çetinkaya, Tuğrul, Akbulut Uludağ, Ahsen, Güler, Mehmet Oğuz, Akbulut, Hatem |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Popis: | A flexible lithium manganese oxide (LiMn2O4)/multi-wall carbon nanotube (MWCNT) composite electrode was produced by casting a slurry-containing powdered LiMn2O4 on a previously prepared MWCNT paper. The structure of this new LiMn2O4/MWCNT composite electrode was characterized using scanning electron microscopy and X-ray diffraction patterns. Furthermore, the surfaces of these electrodes were coated with gold-palladium alloy using an RF magnetron sputtering technique to prevent Mn dissolution. To investigate the electrochemical performance of this flexible LiMn2O4/MWCNT composite electrode, a bare-LiMn2O4 electrode was prepared. The discharge capacity of the produced LiMn2O4/MWCNT nanocomposite electrode was cyclically tested, and the charge transfer resistance of the electrodes was studied using electrochemical impedance spectroscopy. Consequently, the Au-Pd-coated LiMn2O4/MWCNT had a 120 mAh g(-1) discharge capacity and 90 % capacity retention after 100 cycles. |
| Databáze: | OpenAIRE |
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