Defect-Engineered Graphene for High-Energy- and High-Power-Density Supercapacitor Devices

Zhu J., Childress A. S., KARAKAYA M., Dandeliya S., Srivastava A., Lin Y., ...More

ADVANCED MATERIALS, vol.28, no.33, pp.7185-7193, 2016 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 33
  • Publication Date: 2016
  • Doi Number: 10.1002/adma.201602028
  • Journal Name: ADVANCED MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.7185-7193
  • Gazi University Affiliated: Yes

Abstract

Defects are often written off as performance limiters. Contrary to this notion, it is shown that controlling the defect confi guration 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.