Sandwich-type architecture film based on WS2 and ultrafast self-expanded and reduced graphene oxide in a Li-ion battery
Since its discovery, graphene has been widely considered a great material that has advanced the Li-ion battery field and allowed development in its performance. However, most current graphene-related research is focused on graphene-based composites as electrode materials, highlighting the role of gr...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2022.1102207/full |
| _version_ | 1828063269348179968 |
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| author | Karolina Wenelska Tomasz Kędzierski Damian Bęben Damian Bęben Ewa Mijowska |
| author_facet | Karolina Wenelska Tomasz Kędzierski Damian Bęben Damian Bęben Ewa Mijowska |
| author_sort | Karolina Wenelska |
| collection | DOAJ |
| description | Since its discovery, graphene has been widely considered a great material that has advanced the Li-ion battery field and allowed development in its performance. However, most current graphene-related research is focused on graphene-based composites as electrode materials, highlighting the role of graphene in composite materials. Herein, we focused on a three-dimensional composite film with unique sandwich-type architecture based on ultrafast self-expanded and reduced graphene oxide (userGO) and exfoliated WS2. This strategy allows non-active agents [e.g., carbon black and poly (vinylidene fluoride)] free electrodes in LIBs in the form of a film. The ultra-quick exothermal nature of the USER reaction allows the rapid release of internally generated gases to create highly porous channels inside the film. Hence, the improved Li-ion transport in the LIBs boosted the electrochemical performance of both film components (ex-WS2 and reduced graphene), resulting in a high specific capacity of 762 mAh/g at .05 A/g and high Coulombic efficiency (101%) after 1,000 cycles. Overall, userGO showed the highest capacity at a low current, and ex-WS2 provided a higher reversible capacity. These results showed that the expanded graphene layer is an excellent shield for ex-WS2 to protect against pulverization, promoting both stability and capacity. |
| first_indexed | 2024-04-10T22:40:31Z |
| format | Article |
| id | doaj.art-639586b56e3840378e51bbb049568fde |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-04-10T22:40:31Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-639586b56e3840378e51bbb049568fde2023-01-16T05:26:09ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462023-01-011010.3389/fchem.2022.11022071102207Sandwich-type architecture film based on WS2 and ultrafast self-expanded and reduced graphene oxide in a Li-ion batteryKarolina Wenelska0Tomasz Kędzierski1Damian Bęben2Damian Bęben3Ewa Mijowska4Department of Nanomaterials Physicochemistry, Szczecin Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, PolandDepartment of Nanomaterials Physicochemistry, Szczecin Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, PolandNanores Sp. z o.o. Sp.k, Wroclaw, PolandInstitute of Low Temperature and Structure Research, Polish Academy of Sciences in Wroclaw, Wroclaw, PolandDepartment of Nanomaterials Physicochemistry, Szczecin Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, PolandSince its discovery, graphene has been widely considered a great material that has advanced the Li-ion battery field and allowed development in its performance. However, most current graphene-related research is focused on graphene-based composites as electrode materials, highlighting the role of graphene in composite materials. Herein, we focused on a three-dimensional composite film with unique sandwich-type architecture based on ultrafast self-expanded and reduced graphene oxide (userGO) and exfoliated WS2. This strategy allows non-active agents [e.g., carbon black and poly (vinylidene fluoride)] free electrodes in LIBs in the form of a film. The ultra-quick exothermal nature of the USER reaction allows the rapid release of internally generated gases to create highly porous channels inside the film. Hence, the improved Li-ion transport in the LIBs boosted the electrochemical performance of both film components (ex-WS2 and reduced graphene), resulting in a high specific capacity of 762 mAh/g at .05 A/g and high Coulombic efficiency (101%) after 1,000 cycles. Overall, userGO showed the highest capacity at a low current, and ex-WS2 provided a higher reversible capacity. These results showed that the expanded graphene layer is an excellent shield for ex-WS2 to protect against pulverization, promoting both stability and capacity.https://www.frontiersin.org/articles/10.3389/fchem.2022.1102207/fulltungsten disulfide (WS2)graphene oxidebatteriecompositesfilm |
| spellingShingle | Karolina Wenelska Tomasz Kędzierski Damian Bęben Damian Bęben Ewa Mijowska Sandwich-type architecture film based on WS2 and ultrafast self-expanded and reduced graphene oxide in a Li-ion battery Frontiers in Chemistry tungsten disulfide (WS2) graphene oxide batterie composites film |
| title | Sandwich-type architecture film based on WS2 and ultrafast self-expanded and reduced graphene oxide in a Li-ion battery |
| title_full | Sandwich-type architecture film based on WS2 and ultrafast self-expanded and reduced graphene oxide in a Li-ion battery |
| title_fullStr | Sandwich-type architecture film based on WS2 and ultrafast self-expanded and reduced graphene oxide in a Li-ion battery |
| title_full_unstemmed | Sandwich-type architecture film based on WS2 and ultrafast self-expanded and reduced graphene oxide in a Li-ion battery |
| title_short | Sandwich-type architecture film based on WS2 and ultrafast self-expanded and reduced graphene oxide in a Li-ion battery |
| title_sort | sandwich type architecture film based on ws2 and ultrafast self expanded and reduced graphene oxide in a li ion battery |
| topic | tungsten disulfide (WS2) graphene oxide batterie composites film |
| url | https://www.frontiersin.org/articles/10.3389/fchem.2022.1102207/full |
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