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Laser Scribed Graphene Cathode for Next Generation of High Performance Hybrid Supercapacitors.

ABSTRACT: Hybrid supercapacitors have been regarded as next-generation energy storage devices due to their outstanding performances. However, hybrid supercapacitors remain a great challenge to enhance the energy density of hybrid supercapacitors. Herein, a novel approach for high-energy density hybrid supercapacitors based on a laser scribed graphene cathode and AlPO4-carbon hybrid coated H2Ti12O25 (LSG/H-HTO) was designed. Benefiting from high-energy laser scribed graphene and high-power H-HTO, it was demonstrated that LSG/H-HTO delivers superior energy and power densities with excellent cyclability. Compared to previous reports on other hybrid supercapacitors, LSG/H-HTO electrode composition shows extraordinary energy densities of ~70.8?Wh/kg and power densities of ~5191.9?W/kg. Therefore, LSG/H-HTO can be regarded as a promising milestone in hybrid supercapacitors.

SUBMITTER: Lee SH

PROVIDER: S-EPMC5970221 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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Laser Scribed Graphene Cathode for Next Generation of High Performance Hybrid Supercapacitors.

Lee Seung-Hwan SH Kim Jin Hyeon JH Yoon Jung-Rag JR

Scientific reports 20180525 1

Hybrid supercapacitors have been regarded as next-generation energy storage devices due to their outstanding performances. However, hybrid supercapacitors remain a great challenge to enhance the energy density of hybrid supercapacitors. Herein, a novel approach for high-energy density hybrid supercapacitors based on a laser scribed graphene cathode and AlPO4-carbon hybrid coated H2Ti12O25 (LSG/H-HTO) was designed. Benefiting from high-energy laser scri ...[more]

PMID: 29802281

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