4.6 Article

Cu superstructures hydrothermally reduced by leaves and derived Cu-Co3O4 hybrids for flexible solid-state electrochemical energy storage devices

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 4, Issue 13, Pages 4840-4847

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta00123h

Keywords

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Funding

  1. National Key Basic Research Program of China (973 Program) [2014CB648300]
  2. Program for New Century Excellent Talents in University [NCET-13-0645, NCET-13-0872]
  3. Program for Jiangsu Specially-Appointed Professors [RK030STP15001]
  4. National Natural Science Foundation of China [21201010, 21422402, 20904024, 51173081, 61136003, 61106036]
  5. Plan For Scientific Innovation Talent of Henan Province
  6. Program for Innovative Research Team (in Science and Technology) in the University of Henan Province [14IRTSTHN004]
  7. Natural Science Foundation of Jiangsu Province [BK20140060, BK20130037, BM2012010]
  8. Specialized Research Fund for the Doctoral Program of Higher Education [20133223110008, 20113223110005]
  9. Synergetic Innovation Center for Organic Electronics and Information Displays
  10. Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
  11. Six Talent Plan [2012XCL035, 2015-XCL-030]
  12. Qing Lan Project of Jiangsu Province

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Cu-Co3O4 hybrids and activated carbon were employed to fabricate flexible solid-state electrochemical energy storage devices via facile processing. The resulting flexible devices showed a large specific capacitance of 530 mF cm(-2) with excellent mechanical flexibility, which offered a maximum volumetric energy density of 0.71 mW h cm(-3), and delivered a maximum power density of 88.6 mW cm similar to 3. What's more, the device showed an excellent cycling stability with only similar to 5.2% decay after 6000 cycles.

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