Defect-Engineered Graphene for High-Energy- and High-Power-Density Supercapacitor Devices.
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.
Department of Physics and Astronomy, Clemson Nanomaterials Center, COMSET, Clemson University, Clemson, SC, 29634, USA.
Jingyi
J
Zhu
Department of Physics and Astronomy, Clemson Nanomaterials Center, COMSET, Clemson University, Clemson, SC, 29634, USA.
Anthony S
AS
Childress
Department of Physics and Astronomy, Clemson Nanomaterials Center, COMSET, Clemson University, Clemson, SC, 29634, USA.
Mehmet
M
Karakaya
ABV-Indian Institute of Information Technology and Management, Gwalior, 474010, Madhya Pradesh, India.
Sushmita
S
Dandeliya
ABV-Indian Institute of Information Technology and Management, Gwalior, 474010, Madhya Pradesh, India.
Anurag
A
Srivastava
Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA.
Ye
Y
Lin
Department of Physics and Astronomy, Clemson Nanomaterials Center, COMSET, Clemson University, Clemson, SC, 29634, USA.
Apparao M
AM
Rao
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.
Ramakrishna
R
Podila
defect-engineering; graphene; high energy density; high power density; quantum capacitance