Origin of Capacity Fading in Nano-Sized Co<sub>3</sub>O<sub>4</sub>Electrodes: Electrochemical Impedance Spectroscopy Study
<p>Abstract</p> <p>Transition metal oxides have been suggested as innovative, high-energy electrode materials for lithium-ion batteries because their electrochemical conversion reactions can transfer two to six electrons. However, nano-sized transition metal oxides, especially Co&l...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2008-01-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/s11671-008-9176-7 |
| _version_ | 1827846634352934912 |
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| author | Kang Jin-Gu Ko Young-Dae Park Jae-Gwan Kim Dong-Wan |
| author_facet | Kang Jin-Gu Ko Young-Dae Park Jae-Gwan Kim Dong-Wan |
| author_sort | Kang Jin-Gu |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Transition metal oxides have been suggested as innovative, high-energy electrode materials for lithium-ion batteries because their electrochemical conversion reactions can transfer two to six electrons. However, nano-sized transition metal oxides, especially Co<sub>3</sub>O<sub>4</sub>, exhibit drastic capacity decay during discharge/charge cycling, which hinders their practical use in lithium-ion batteries. Herein, we prepared nano-sized Co<sub>3</sub>O<sub>4</sub>with high crystallinity using a simple citrate-gel method and used electrochemical impedance spectroscopy method to examine the origin for the drastic capacity fading observed in the nano-sized Co<sub>3</sub>O<sub>4</sub>anode system. During cycling, AC impedance responses were collected at the first discharged state and at every subsequent tenth discharged state until the 100th cycle. By examining the separable relaxation time of each electrochemical reaction and the goodness-of-fit results, a direct relation between the charge transfer process and cycling performance was clearly observed.</p> |
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| format | Article |
| id | doaj.art-2dfec9e47958463e84c99b9e288168f5 |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T09:18:55Z |
| publishDate | 2008-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-2dfec9e47958463e84c99b9e288168f52023-09-02T14:38:54ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2008-01-01310390394Origin of Capacity Fading in Nano-Sized Co<sub>3</sub>O<sub>4</sub>Electrodes: Electrochemical Impedance Spectroscopy StudyKang Jin-GuKo Young-DaePark Jae-GwanKim Dong-Wan<p>Abstract</p> <p>Transition metal oxides have been suggested as innovative, high-energy electrode materials for lithium-ion batteries because their electrochemical conversion reactions can transfer two to six electrons. However, nano-sized transition metal oxides, especially Co<sub>3</sub>O<sub>4</sub>, exhibit drastic capacity decay during discharge/charge cycling, which hinders their practical use in lithium-ion batteries. Herein, we prepared nano-sized Co<sub>3</sub>O<sub>4</sub>with high crystallinity using a simple citrate-gel method and used electrochemical impedance spectroscopy method to examine the origin for the drastic capacity fading observed in the nano-sized Co<sub>3</sub>O<sub>4</sub>anode system. During cycling, AC impedance responses were collected at the first discharged state and at every subsequent tenth discharged state until the 100th cycle. By examining the separable relaxation time of each electrochemical reaction and the goodness-of-fit results, a direct relation between the charge transfer process and cycling performance was clearly observed.</p>http://dx.doi.org/10.1007/s11671-008-9176-7Nano-sized Co<sub>3</sub>O<sub>4</sub>Li-ion batteriesCapacity fadingElectrochemical impedance spectroscopyCharge transfer reaction |
| spellingShingle | Kang Jin-Gu Ko Young-Dae Park Jae-Gwan Kim Dong-Wan Origin of Capacity Fading in Nano-Sized Co<sub>3</sub>O<sub>4</sub>Electrodes: Electrochemical Impedance Spectroscopy Study Nanoscale Research Letters Nano-sized Co<sub>3</sub>O<sub>4</sub> Li-ion batteries Capacity fading Electrochemical impedance spectroscopy Charge transfer reaction |
| title | Origin of Capacity Fading in Nano-Sized Co<sub>3</sub>O<sub>4</sub>Electrodes: Electrochemical Impedance Spectroscopy Study |
| title_full | Origin of Capacity Fading in Nano-Sized Co<sub>3</sub>O<sub>4</sub>Electrodes: Electrochemical Impedance Spectroscopy Study |
| title_fullStr | Origin of Capacity Fading in Nano-Sized Co<sub>3</sub>O<sub>4</sub>Electrodes: Electrochemical Impedance Spectroscopy Study |
| title_full_unstemmed | Origin of Capacity Fading in Nano-Sized Co<sub>3</sub>O<sub>4</sub>Electrodes: Electrochemical Impedance Spectroscopy Study |
| title_short | Origin of Capacity Fading in Nano-Sized Co<sub>3</sub>O<sub>4</sub>Electrodes: Electrochemical Impedance Spectroscopy Study |
| title_sort | origin of capacity fading in nano sized co sub 3 sub o sub 4 sub electrodes electrochemical impedance spectroscopy study |
| topic | Nano-sized Co<sub>3</sub>O<sub>4</sub> Li-ion batteries Capacity fading Electrochemical impedance spectroscopy Charge transfer reaction |
| url | http://dx.doi.org/10.1007/s11671-008-9176-7 |
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