Exploiting Anti-T-shaped Graphene Architecture to Form Low Tortuosity, Sieve-like Interfaces for High-Performance Anodes for Li-Based Cells
Graphitic carbon anodes have long been used in Li ion batteries due to their combination of attractive properties, such as low cost, high gravimetric energy density, and good rate capability. However, one significant challenge is controlling, and optimizing, the nature and formation of the solid ele...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Chemical Society
2017-12-01
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| Series: | ACS Central Science |
| Online Access: | http://dx.doi.org/10.1021/acscentsci.7b00444 |
| _version_ | 1818299167204704256 |
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| author | Dong Wang Wei Zhang Nicholas E. Drewett Xiaofei Liu Seung Jo Yoo Sang-Gil Lee Jin-Gyu Kim Ting Deng Xiaoyu Zhang Xiaoyuan Shi Weitao Zheng |
| author_facet | Dong Wang Wei Zhang Nicholas E. Drewett Xiaofei Liu Seung Jo Yoo Sang-Gil Lee Jin-Gyu Kim Ting Deng Xiaoyu Zhang Xiaoyuan Shi Weitao Zheng |
| author_sort | Dong Wang |
| collection | DOAJ |
| description | Graphitic carbon anodes have long been used in Li ion batteries due to their combination of attractive properties, such as low cost, high gravimetric energy density, and good rate capability. However, one significant challenge is controlling, and optimizing, the nature and formation of the solid electrolyte interphase (SEI). Here it is demonstrated that carbon coating via chemical vapor deposition (CVD) facilitates high electrochemical performance of carbon anodes. We examine and characterize the substrate/vertical graphene interface (multilayer graphene nanowalls coated onto carbon paper via plasma enhanced CVD), revealing that these low-tortuosity and high-selection graphene nanowalls act as fast Li ion transport channels. Moreover, we determine that the hitherto neglected parallel layer acts as a protective surface at the interface, enhancing the anode performance. In summary, these findings not only clarify the synergistic role of the parallel functional interface when combined with vertical graphene nanowalls but also have facilitated the development of design principles for future high rate, high performance batteries. |
| first_indexed | 2024-12-13T04:46:55Z |
| format | Article |
| id | doaj.art-454f1e4605954548b42f782b56b18c41 |
| institution | Directory Open Access Journal |
| issn | 2374-7943 2374-7951 |
| language | English |
| last_indexed | 2024-12-13T04:46:55Z |
| publishDate | 2017-12-01 |
| publisher | American Chemical Society |
| record_format | Article |
| series | ACS Central Science |
| spelling | doaj.art-454f1e4605954548b42f782b56b18c412022-12-21T23:59:07ZengAmerican Chemical SocietyACS Central Science2374-79432374-79512017-12-0141818810.1021/acscentsci.7b00444Exploiting Anti-T-shaped Graphene Architecture to Form Low Tortuosity, Sieve-like Interfaces for High-Performance Anodes for Li-Based CellsDong Wang0Wei Zhang1Nicholas E. Drewett2Xiaofei Liu3Seung Jo Yoo4Sang-Gil Lee5Jin-Gyu Kim6Ting Deng7Xiaoyu Zhang8Xiaoyuan Shi9Weitao Zheng10State Key Laboratory of Automotive Simulation and Control, and Department of Materials Science, and International Center of Future Science, and Electron Microscopy Center, Jilin University, Changchun, ChinaState Key Laboratory of Automotive Simulation and Control, and Department of Materials Science, and International Center of Future Science, and Electron Microscopy Center, Jilin University, Changchun, ChinaCIC Energigune, Miñano, SpainState Key Laboratory of Automotive Simulation and Control, and Department of Materials Science, and International Center of Future Science, and Electron Microscopy Center, Jilin University, Changchun, ChinaElectron Microscopy Research Center, Korea Basic Science Institute, Daejeon, South KoreaElectron Microscopy Research Center, Korea Basic Science Institute, Daejeon, South KoreaElectron Microscopy Research Center, Korea Basic Science Institute, Daejeon, South KoreaState Key Laboratory of Automotive Simulation and Control, and Department of Materials Science, and International Center of Future Science, and Electron Microscopy Center, Jilin University, Changchun, ChinaState Key Laboratory of Automotive Simulation and Control, and Department of Materials Science, and International Center of Future Science, and Electron Microscopy Center, Jilin University, Changchun, ChinaState Key Laboratory of Automotive Simulation and Control, and Department of Materials Science, and International Center of Future Science, and Electron Microscopy Center, Jilin University, Changchun, ChinaState Key Laboratory of Automotive Simulation and Control, and Department of Materials Science, and International Center of Future Science, and Electron Microscopy Center, Jilin University, Changchun, ChinaGraphitic carbon anodes have long been used in Li ion batteries due to their combination of attractive properties, such as low cost, high gravimetric energy density, and good rate capability. However, one significant challenge is controlling, and optimizing, the nature and formation of the solid electrolyte interphase (SEI). Here it is demonstrated that carbon coating via chemical vapor deposition (CVD) facilitates high electrochemical performance of carbon anodes. We examine and characterize the substrate/vertical graphene interface (multilayer graphene nanowalls coated onto carbon paper via plasma enhanced CVD), revealing that these low-tortuosity and high-selection graphene nanowalls act as fast Li ion transport channels. Moreover, we determine that the hitherto neglected parallel layer acts as a protective surface at the interface, enhancing the anode performance. In summary, these findings not only clarify the synergistic role of the parallel functional interface when combined with vertical graphene nanowalls but also have facilitated the development of design principles for future high rate, high performance batteries.http://dx.doi.org/10.1021/acscentsci.7b00444 |
| spellingShingle | Dong Wang Wei Zhang Nicholas E. Drewett Xiaofei Liu Seung Jo Yoo Sang-Gil Lee Jin-Gyu Kim Ting Deng Xiaoyu Zhang Xiaoyuan Shi Weitao Zheng Exploiting Anti-T-shaped Graphene Architecture to Form Low Tortuosity, Sieve-like Interfaces for High-Performance Anodes for Li-Based Cells ACS Central Science |
| title | Exploiting Anti-T-shaped Graphene Architecture to Form Low Tortuosity, Sieve-like Interfaces for High-Performance Anodes for Li-Based Cells |
| title_full | Exploiting Anti-T-shaped Graphene Architecture to Form Low Tortuosity, Sieve-like Interfaces for High-Performance Anodes for Li-Based Cells |
| title_fullStr | Exploiting Anti-T-shaped Graphene Architecture to Form Low Tortuosity, Sieve-like Interfaces for High-Performance Anodes for Li-Based Cells |
| title_full_unstemmed | Exploiting Anti-T-shaped Graphene Architecture to Form Low Tortuosity, Sieve-like Interfaces for High-Performance Anodes for Li-Based Cells |
| title_short | Exploiting Anti-T-shaped Graphene Architecture to Form Low Tortuosity, Sieve-like Interfaces for High-Performance Anodes for Li-Based Cells |
| title_sort | exploiting anti t shaped graphene architecture to form low tortuosity sieve like interfaces for high performance anodes for li based cells |
| url | http://dx.doi.org/10.1021/acscentsci.7b00444 |
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