Rational Construction of Bi2CuO12Se4 and VGCFs@Fe2O3 Composite Electrodes for High‐Performance Semi‐Solid‐State Asymmetric Supercapacitors
2024

High-Performance Semi-Solid-State Asymmetric Supercapacitors

publication Evidence: high

Author Information

Author(s): Nagaraju Manchi, Ramulu Bhimanaboina, Arbaz Shaik Junied, Shankar Edugulla Girija, Kiran Ampasala Surya, Yu Jae Su

Primary Institution: Kyung Hee University

Hypothesis

Can the construction of Bi2CuO12Se4 and VGCFs@Fe2O3 composite electrodes enhance the performance of semi-solid-state asymmetric supercapacitors?

Conclusion

The BCS-200/VGCFs@Fe2O3/NF supercapacitor achieved an energy density of 20.5 Wh kg−1 and maintained 91.7% cycling stability over 40,000 cycles.

Supporting Evidence

  • The BCS-200 electrode showed a specific capacity of 330.9 mAh g−1.
  • The VGCFs@Fe2O3 electrode exhibited a specific capacitance of 734.4 F g−1.
  • The SSASC cell maintained 91.7% capacitance retention after 40,000 cycles.
  • The study demonstrated the real-time applicability of the supercapacitor in powering wearable electronics.

Takeaway

This study created a special battery that can store energy really well and last a long time, making it great for powering small devices.

Methodology

The study used electrodeposition to create a bismuth copper selenite electrode and combined it with a VGCFs@Fe2O3 composite for the supercapacitor.

Digital Object Identifier (DOI)

10.1002/smtd.202400149

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