Binder-Free CoMn<sub>2</sub>O<sub>4</sub> Nanoflower Particles/Graphene/Carbon Nanotube Composite Film for a High-Performance Lithium-Ion Battery
Manganese-based bimetallic oxides show a high theoretical specific capacity, making them a potential next-generation lithium-ion battery anode material. However, as with metal oxide anode materials, aggregation, volume expansion, and poor conductivity are the main obstacles. In this manuscript, flex...
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MDPI AG
2023-07-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/11/8/314 |
| _version_ | 1797584321516666880 |
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| author | Xin Tong Bo Yang Fei Li Manqi Gu Xinxing Zhan Juan Tian Shengyun Huang Gang Wang |
| author_facet | Xin Tong Bo Yang Fei Li Manqi Gu Xinxing Zhan Juan Tian Shengyun Huang Gang Wang |
| author_sort | Xin Tong |
| collection | DOAJ |
| description | Manganese-based bimetallic oxides show a high theoretical specific capacity, making them a potential next-generation lithium-ion battery anode material. However, as with metal oxide anode materials, aggregation, volume expansion, and poor conductivity are the main obstacles. In this manuscript, flexible CoMn<sub>2</sub>O<sub>4</sub>/graphene/carbon nanotube films were successfully prepared through a facile filtration strategy and a subsequent thermal treatment process. When used as anodes for lithium batteries, these films can be pressed onto nickel foam without other conductive additives and binders, which simplifies the manufacturing process. When used as an anode in the lithium-ion battery, CoMn<sub>2</sub>O<sub>4</sub>/GR/CNT film exhibits a high discharge capacity of 881 mAh g<sup>−1</sup> after 55 cycles. This value is ~2 times higher than the discharge capacity of CoMn<sub>2</sub>O<sub>4</sub>. The three-dimensional GR/CNT carrier effectively dispersed CoMn<sub>2</sub>O<sub>4</sub>, preventing its aggregation and alleviating the problem of volume expansion. |
| first_indexed | 2024-03-10T23:51:13Z |
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| institution | Directory Open Access Journal |
| issn | 2304-6740 |
| language | English |
| last_indexed | 2024-03-10T23:51:13Z |
| publishDate | 2023-07-01 |
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| series | Inorganics |
| spelling | doaj.art-2f46b762c6274288bf3fd9d7d24b8cff2023-11-19T01:35:24ZengMDPI AGInorganics2304-67402023-07-0111831410.3390/inorganics11080314Binder-Free CoMn<sub>2</sub>O<sub>4</sub> Nanoflower Particles/Graphene/Carbon Nanotube Composite Film for a High-Performance Lithium-Ion BatteryXin Tong0Bo Yang1Fei Li2Manqi Gu3Xinxing Zhan4Juan Tian5Shengyun Huang6Gang Wang7School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, ChinaSchool of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, ChinaState Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi’an 710127, ChinaSchool of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, ChinaSchool of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, ChinaSchool of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, ChinaGanjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, ChinaState Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi’an 710127, ChinaManganese-based bimetallic oxides show a high theoretical specific capacity, making them a potential next-generation lithium-ion battery anode material. However, as with metal oxide anode materials, aggregation, volume expansion, and poor conductivity are the main obstacles. In this manuscript, flexible CoMn<sub>2</sub>O<sub>4</sub>/graphene/carbon nanotube films were successfully prepared through a facile filtration strategy and a subsequent thermal treatment process. When used as anodes for lithium batteries, these films can be pressed onto nickel foam without other conductive additives and binders, which simplifies the manufacturing process. When used as an anode in the lithium-ion battery, CoMn<sub>2</sub>O<sub>4</sub>/GR/CNT film exhibits a high discharge capacity of 881 mAh g<sup>−1</sup> after 55 cycles. This value is ~2 times higher than the discharge capacity of CoMn<sub>2</sub>O<sub>4</sub>. The three-dimensional GR/CNT carrier effectively dispersed CoMn<sub>2</sub>O<sub>4</sub>, preventing its aggregation and alleviating the problem of volume expansion.https://www.mdpi.com/2304-6740/11/8/314lithium-ion batteryanode materialsCoMn<sub>2</sub>O<sub>4</sub> nanoflowergraphenefilm |
| spellingShingle | Xin Tong Bo Yang Fei Li Manqi Gu Xinxing Zhan Juan Tian Shengyun Huang Gang Wang Binder-Free CoMn<sub>2</sub>O<sub>4</sub> Nanoflower Particles/Graphene/Carbon Nanotube Composite Film for a High-Performance Lithium-Ion Battery Inorganics lithium-ion battery anode materials CoMn<sub>2</sub>O<sub>4</sub> nanoflower graphene film |
| title | Binder-Free CoMn<sub>2</sub>O<sub>4</sub> Nanoflower Particles/Graphene/Carbon Nanotube Composite Film for a High-Performance Lithium-Ion Battery |
| title_full | Binder-Free CoMn<sub>2</sub>O<sub>4</sub> Nanoflower Particles/Graphene/Carbon Nanotube Composite Film for a High-Performance Lithium-Ion Battery |
| title_fullStr | Binder-Free CoMn<sub>2</sub>O<sub>4</sub> Nanoflower Particles/Graphene/Carbon Nanotube Composite Film for a High-Performance Lithium-Ion Battery |
| title_full_unstemmed | Binder-Free CoMn<sub>2</sub>O<sub>4</sub> Nanoflower Particles/Graphene/Carbon Nanotube Composite Film for a High-Performance Lithium-Ion Battery |
| title_short | Binder-Free CoMn<sub>2</sub>O<sub>4</sub> Nanoflower Particles/Graphene/Carbon Nanotube Composite Film for a High-Performance Lithium-Ion Battery |
| title_sort | binder free comn sub 2 sub o sub 4 sub nanoflower particles graphene carbon nanotube composite film for a high performance lithium ion battery |
| topic | lithium-ion battery anode materials CoMn<sub>2</sub>O<sub>4</sub> nanoflower graphene film |
| url | https://www.mdpi.com/2304-6740/11/8/314 |
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