Towards Promotion of Graphene/Titania‐Based Electrode via Ultrafast and Self‐Expansion Reduction for Li‐ion Battery
Abstract In this study, a facile strategy to promote electrochemical performance of free‐standing Li‐ion battery electrode composed of titanium dioxide (TiO2) via composite formation with reduced graphene oxide (RGO) using ultrafast and self‐expansion reduction reaction (USER) was proposed. This app...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-03-01
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| Series: | ChemElectroChem |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/celc.202201068 |
| _version_ | 1797807333936463872 |
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| author | Tomasz Kędzierski Daria Baranowska Prof. Beata Zielińska Prof. Ewa Mijowska |
| author_facet | Tomasz Kędzierski Daria Baranowska Prof. Beata Zielińska Prof. Ewa Mijowska |
| author_sort | Tomasz Kędzierski |
| collection | DOAJ |
| description | Abstract In this study, a facile strategy to promote electrochemical performance of free‐standing Li‐ion battery electrode composed of titanium dioxide (TiO2) via composite formation with reduced graphene oxide (RGO) using ultrafast and self‐expansion reduction reaction (USER) was proposed. This approach induced self‐expansion through rapid heating providing abundance of cavities/empty spaces to alleviate volume change during charge/discharge process resulting in boosted storage and conversion response of the system (765 mAh g−1 at 0.05 A g−1) and accelerated Coulombic efficiency. Detailed electrochemical, microscopic and structural analyses (ex‐situ) of the film prove that this internal expansion delivers enhanced ionic diffusion and shielding material from volume changes during charge/discharge process. Therefore, we believe that this simple and very fast strategy offers a venue to overcome one of the main bottleneck in promotion of electrochemical performance of other active materials which are sensitive to volume expansion during lithiation/delithiation process. |
| first_indexed | 2024-03-13T06:21:00Z |
| format | Article |
| id | doaj.art-bc4192e4fdcf41369c058b3f7814006d |
| institution | Directory Open Access Journal |
| issn | 2196-0216 |
| language | English |
| last_indexed | 2024-03-13T06:21:00Z |
| publishDate | 2023-03-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemElectroChem |
| spelling | doaj.art-bc4192e4fdcf41369c058b3f7814006d2023-06-09T18:22:10ZengWiley-VCHChemElectroChem2196-02162023-03-01106n/an/a10.1002/celc.202201068Towards Promotion of Graphene/Titania‐Based Electrode via Ultrafast and Self‐Expansion Reduction for Li‐ion BatteryTomasz Kędzierski0Daria Baranowska1Prof. Beata Zielińska2Prof. Ewa Mijowska3Department of Nanomaterials Physicochemistry Faculty of Chemical Technology and Engineering West Pomeranian University of Technology in Szczecin Piastów 42 71-065 Szczecin PolandDepartment of Nanomaterials Physicochemistry Faculty of Chemical Technology and Engineering West Pomeranian University of Technology in Szczecin Piastów 42 71-065 Szczecin PolandDepartment of Nanomaterials Physicochemistry Faculty of Chemical Technology and Engineering West Pomeranian University of Technology in Szczecin Piastów 42 71-065 Szczecin PolandDepartment of Nanomaterials Physicochemistry Faculty of Chemical Technology and Engineering West Pomeranian University of Technology in Szczecin Piastów 42 71-065 Szczecin PolandAbstract In this study, a facile strategy to promote electrochemical performance of free‐standing Li‐ion battery electrode composed of titanium dioxide (TiO2) via composite formation with reduced graphene oxide (RGO) using ultrafast and self‐expansion reduction reaction (USER) was proposed. This approach induced self‐expansion through rapid heating providing abundance of cavities/empty spaces to alleviate volume change during charge/discharge process resulting in boosted storage and conversion response of the system (765 mAh g−1 at 0.05 A g−1) and accelerated Coulombic efficiency. Detailed electrochemical, microscopic and structural analyses (ex‐situ) of the film prove that this internal expansion delivers enhanced ionic diffusion and shielding material from volume changes during charge/discharge process. Therefore, we believe that this simple and very fast strategy offers a venue to overcome one of the main bottleneck in promotion of electrochemical performance of other active materials which are sensitive to volume expansion during lithiation/delithiation process.https://doi.org/10.1002/celc.202201068lithium-ion batteriesreduced graphene oxidethin filmstitanium dioxideUSER reaction |
| spellingShingle | Tomasz Kędzierski Daria Baranowska Prof. Beata Zielińska Prof. Ewa Mijowska Towards Promotion of Graphene/Titania‐Based Electrode via Ultrafast and Self‐Expansion Reduction for Li‐ion Battery ChemElectroChem lithium-ion batteries reduced graphene oxide thin films titanium dioxide USER reaction |
| title | Towards Promotion of Graphene/Titania‐Based Electrode via Ultrafast and Self‐Expansion Reduction for Li‐ion Battery |
| title_full | Towards Promotion of Graphene/Titania‐Based Electrode via Ultrafast and Self‐Expansion Reduction for Li‐ion Battery |
| title_fullStr | Towards Promotion of Graphene/Titania‐Based Electrode via Ultrafast and Self‐Expansion Reduction for Li‐ion Battery |
| title_full_unstemmed | Towards Promotion of Graphene/Titania‐Based Electrode via Ultrafast and Self‐Expansion Reduction for Li‐ion Battery |
| title_short | Towards Promotion of Graphene/Titania‐Based Electrode via Ultrafast and Self‐Expansion Reduction for Li‐ion Battery |
| title_sort | towards promotion of graphene titania based electrode via ultrafast and self expansion reduction for li ion battery |
| topic | lithium-ion batteries reduced graphene oxide thin films titanium dioxide USER reaction |
| url | https://doi.org/10.1002/celc.202201068 |
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