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Study on Direct-Contact Prelithiation of Soft Carbon Anodes Using Lithium Foil for Lithium-Ion Capacitors

Author

Listed:
  • Minji Kang

    (Graduate School, Department of Green Energy Engineering, Hoseo University, Asan 31499, Republic of Korea)

  • Sanghyeock Jeong

    (Graduate School, Department of Green Energy Engineering, Hoseo University, Asan 31499, Republic of Korea)

  • Gabjin Hwang

    (Graduate School, Department of Green Energy Engineering, Hoseo University, Asan 31499, Republic of Korea)

  • Cheolhwi Ryu

    (Graduate School, Department of Green Energy Engineering, Hoseo University, Asan 31499, Republic of Korea)

Abstract

As the global energy demand continues to rise, the utilization of lithium-ion capacitors (LICs), which combine the advantages of lithium-ion batteries (LIBs) and electrochemical capacitors (ECs), is also increasing. LICs offer high energy density, high power density, and a long life cycle. However, a prelithiation process is required for graphite-based anode materials. In LICs, the formation of the solid electrolyte interphase (SEI) layer inevitably causes an initial irreversible capacity loss, often resulting in the excessive consumption of lithium ions. Considering the limited lithium resources, prelithiation is essential to achieve a satisfactory electrochemical performance in LICs. Various anode prelithiation techniques have been reported to enhance the capacity of LIBs and LICs. Among these, the direct-contact prelithiation method involves physically contacting lithium metal with the electrode or active material. In this study, direct-contact prelithiation was performed on soft carbon-based anode materials, and LICs were fabricated using activated carbon-based cathode materials. The electrochemical properties of the fabricated LICs were evaluated to demonstrate the feasibility of applying the direct-contact prelithiation technique.

Suggested Citation

  • Minji Kang & Sanghyeock Jeong & Gabjin Hwang & Cheolhwi Ryu, 2025. "Study on Direct-Contact Prelithiation of Soft Carbon Anodes Using Lithium Foil for Lithium-Ion Capacitors," Energies, MDPI, vol. 18(9), pages 1-18, April.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:9:p:2276-:d:1646053
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    References listed on IDEAS

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    1. Hussain, Jamal & Khan, Anwar & Zhou, Kui, 2020. "The impact of natural resource depletion on energy use and CO2 emission in Belt & Road Initiative countries: A cross-country analysis," Energy, Elsevier, vol. 199(C).
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