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Zhu J, Childress AS, Karakaya M, Dandeliya S, Srivastava A, Lin Y, Rao AM, Podila R. Defect-Engineered Graphene for High-Energy- and High-Power-Density Supercapacitor Devices. Adv Mater 2016; 28:7185-92. [PMID: 27299300 DOI: 10.1002/adma.201602028] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Indexed: 05/15/2023]
Abstract
Defects are often written off as performance limiters. Contrary to this notion, it is shown that controlling the defect configuration in graphene is critical to overcome a fundamental limitation posed by quantum capacitance and opens new channels for ion diffusion. Defect-engineered graphene flexible pouch capacitors with energy densities of 500% higher than the state-of-the-art supercapacitors are demonstrated.
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Affiliation(s)
- Jingyi Zhu
- Department of Physics and Astronomy, Clemson Nanomaterials Center, COMSET, Clemson University, Clemson, SC, 29634, USA
| | - Anthony S Childress
- Department of Physics and Astronomy, Clemson Nanomaterials Center, COMSET, Clemson University, Clemson, SC, 29634, USA
| | - Mehmet Karakaya
- Department of Physics and Astronomy, Clemson Nanomaterials Center, COMSET, Clemson University, Clemson, SC, 29634, USA
| | - Sushmita Dandeliya
- ABV-Indian Institute of Information Technology and Management, Gwalior, 474010, Madhya Pradesh, India
| | - Anurag Srivastava
- ABV-Indian Institute of Information Technology and Management, Gwalior, 474010, Madhya Pradesh, India
| | - Ye Lin
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - Apparao M Rao
- Department of Physics and Astronomy, Clemson Nanomaterials Center, COMSET, Clemson University, Clemson, SC, 29634, USA
| | - Ramakrishna Podila
- Department of Physics and Astronomy, Clemson Nanomaterials Center, COMSET, Clemson University, Clemson, SC, 29634, USA
- Laboratory of Nano-biophysics, Clemson University, Clemson, SC, 29634, USA
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