Capacity Increase Investigation of Cu2Se Electrode by Using Electrochemical Impedance Spectroscopy
Cu2Se nanoflake arrays supported by Cu foams are synthesized by a facile hydrothermal method in this study. The Cu2Se materials are directly used as an anode for lithium ion batteries, which show superior cycle performance with significant capacity increase. Combining with previous reports and scann...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-06-01
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| Series: | Frontiers in Chemistry |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/article/10.3389/fchem.2018.00221/full |
| _version_ | 1828453486143995904 |
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| author | Xiuwan Li Zhixin Zhang Chaoqun Liu Zhiyang Lin |
| author_facet | Xiuwan Li Zhixin Zhang Chaoqun Liu Zhiyang Lin |
| author_sort | Xiuwan Li |
| collection | DOAJ |
| description | Cu2Se nanoflake arrays supported by Cu foams are synthesized by a facile hydrothermal method in this study. The Cu2Se materials are directly used as an anode for lithium ion batteries, which show superior cycle performance with significant capacity increase. Combining with previous reports and scanning electron microscope images after cycling, the capacity increase caused by the reversible growth of a polymeric film is discussed. Electrochemical impedance spectroscopy is used to test the reversible growth of the polymeric film. By analyzing the three-dimensional Nyquist plots at different potentials during the discharge/charge process, detailed electrochemical reaction information can be obtained, which can further verify the reversible formation of a polymeric film at low potential. |
| first_indexed | 2024-12-11T00:07:14Z |
| format | Article |
| id | doaj.art-bec7ab01a8e04caebbad992e103538a7 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-11T00:07:14Z |
| publishDate | 2018-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-bec7ab01a8e04caebbad992e103538a72022-12-22T01:28:17ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462018-06-01610.3389/fchem.2018.00221387841Capacity Increase Investigation of Cu2Se Electrode by Using Electrochemical Impedance SpectroscopyXiuwan LiZhixin ZhangChaoqun LiuZhiyang LinCu2Se nanoflake arrays supported by Cu foams are synthesized by a facile hydrothermal method in this study. The Cu2Se materials are directly used as an anode for lithium ion batteries, which show superior cycle performance with significant capacity increase. Combining with previous reports and scanning electron microscope images after cycling, the capacity increase caused by the reversible growth of a polymeric film is discussed. Electrochemical impedance spectroscopy is used to test the reversible growth of the polymeric film. By analyzing the three-dimensional Nyquist plots at different potentials during the discharge/charge process, detailed electrochemical reaction information can be obtained, which can further verify the reversible formation of a polymeric film at low potential.https://www.frontiersin.org/article/10.3389/fchem.2018.00221/fullCu2Secapacity increaseelectrochemical impedance spectroscopypolymeric filmlithium ion battery |
| spellingShingle | Xiuwan Li Zhixin Zhang Chaoqun Liu Zhiyang Lin Capacity Increase Investigation of Cu2Se Electrode by Using Electrochemical Impedance Spectroscopy Frontiers in Chemistry Cu2Se capacity increase electrochemical impedance spectroscopy polymeric film lithium ion battery |
| title | Capacity Increase Investigation of Cu2Se Electrode by Using Electrochemical Impedance Spectroscopy |
| title_full | Capacity Increase Investigation of Cu2Se Electrode by Using Electrochemical Impedance Spectroscopy |
| title_fullStr | Capacity Increase Investigation of Cu2Se Electrode by Using Electrochemical Impedance Spectroscopy |
| title_full_unstemmed | Capacity Increase Investigation of Cu2Se Electrode by Using Electrochemical Impedance Spectroscopy |
| title_short | Capacity Increase Investigation of Cu2Se Electrode by Using Electrochemical Impedance Spectroscopy |
| title_sort | capacity increase investigation of cu2se electrode by using electrochemical impedance spectroscopy |
| topic | Cu2Se capacity increase electrochemical impedance spectroscopy polymeric film lithium ion battery |
| url | https://www.frontiersin.org/article/10.3389/fchem.2018.00221/full |
| work_keys_str_mv | AT xiuwanli capacityincreaseinvestigationofcu2seelectrodebyusingelectrochemicalimpedancespectroscopy AT zhixinzhang capacityincreaseinvestigationofcu2seelectrodebyusingelectrochemicalimpedancespectroscopy AT chaoqunliu capacityincreaseinvestigationofcu2seelectrodebyusingelectrochemicalimpedancespectroscopy AT zhiyanglin capacityincreaseinvestigationofcu2seelectrodebyusingelectrochemicalimpedancespectroscopy |