Porous current collector enables carbon superior electrochemical performance for K-ion capacitors

Liu, Meiqi; Li, Huiming; Le, Zaiyuan; Zhao, Jinfu; Nie, Ping; Fang, Luan; Hou, Meiqi; Wang, Hairui; Xu, Tianhao; Nie, Ping

doi:10.1007/s12598-022-02111-0

Cited by 13 publications

(6 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to ensure the efficient exchange of Li ions across the electrolyte and anode, the ion flux and the sluggish kinetics of the current collector surface play a crucial role. Current collector modification is, therefore, an area of interest for metal anode research to date [145][146][147][148][149][150][151]. A high crystalline mismatch between the metallic anode and the chosen 3D substrate leads to an increased overpotential.…”

Section: Metallic Current Collectorsmentioning

confidence: 99%

Strategies to develop stable alkali metal anodes for rechargeable batteries

Sunny,

Suriyakumar,

Sajeevan

et al. 2024

J. Phys. Energy

View full text Add to dashboard Cite

Alkali metal anodes are among the most promising candidates for next-generation high-capacity batteries like metal–air, metal–sulphur and all-solid-state metal batteries. The underlying interfacial mechanism of dendrite formation is not yet fully understood, preventing the practical implementation of metal batteries, particularly lithium, despite decades of research. Parallelly, there is an equal significance to the other alkali metal candidates viz sodium and potassium. The major challenges of alkali metal batteries, including dendrite formation, huge volume change, and unstable solid–electrolyte interface, are highlighted. Here, we also present an overview of the recent developments toward improving the anode interfaces. Given the enormous practical potential of alkali metal anodes as next-generation battery electrodes, we discuss some advanced probing techniques that enable a more complete understanding of the complex plating/stripping mechanism. Finally, perspectives and suggestions are provided on the remaining challenges and future directions in alkali metal battery research.

show abstract

Section: Metallic Current Collectorsmentioning

confidence: 99%

Strategies to develop stable alkali metal anodes for rechargeable batteries

Sunny,

Suriyakumar,

Sajeevan

et al. 2024

J. Phys. Energy

View full text Add to dashboard Cite

show abstract

“…Therefore, it is necessary to increase the power of anodes and the capacity of cathodes, as well as carefully calculate and match the mass of the electrode material so that the anodes and cathodes are thermodynamically and dynamically matched. 4) To realize the practical value of PIHCs, the performance of the other components is also critical, including electrolytes [154] , diaphragms, current collectors (including Cu, Al, Ni, stainless steel as well as carbon-based and their composites) [155] , and other components that affect the overall performance of the device. Therefore, efforts must be made to explore the components that can adapt to positive and negative electrode materials to achieve high-performance PIHCs.…”

Section: Conclusion and Perspectivementioning

confidence: 99%

“…Possible strategies include heteroatom doping, template method, pre‐potassiation, using the same anode material, or exploring new materials with specific structures. In the whole device of PIHCs, the dynamics of anodes and cathodes do not match because of the different rates of Faraday reaction on the surface of the anodes and cathodes. Therefore, it is necessary to increase the power of anodes and the capacity of cathodes, as well as carefully calculate and match the mass of the electrode material so that the anodes and cathodes are thermodynamically and dynamically matched. To realize the practical value of PIHCs, the performance of the other components is also critical, including electrolytes [154] , diaphragms, current collectors (including Cu, Al, Ni, stainless steel as well as carbon‐based and their composites) [155] , and other components that affect the overall performance of the device. Therefore, efforts must be made to explore the components that can adapt to positive and negative electrode materials to achieve high‐performance PIHCs. Currently, most characterization techniques focus on secondary batteries, such as lithium‐ion batteries.…”

Section: Conclusion and Perspectivementioning

confidence: 99%

“…To realize the practical value of PIHCs, the performance of the other components is also critical, including electrolytes [154] , diaphragms, current collectors (including Cu, Al, Ni, stainless steel as well as carbon‐based and their composites) [155] , and other components that affect the overall performance of the device. Therefore, efforts must be made to explore the components that can adapt to positive and negative electrode materials to achieve high‐performance PIHCs.…”

Section: Conclusion and Perspectivementioning

confidence: 99%

See 1 more Smart Citation

Advanced Electrode Materials for Potassium‐Ion Hybrid Capacitors

Chen

Shen

Xiong

et al. 2023

Batteries & Supercaps

View full text Add to dashboard Cite

Potassium‐ion hybrid capacitors (PIHCs) overcome the limitations of potassium‐ion batteries (PIBs) and supercapacitors (SCs) and integrate the advantages of both, including high energy density, high power density, low cost, long cycle life, and stable electrochemical performance. However, the development of PIHCs is hindered by thermodynamic instability and kinetic hysteresis. Additionally, the dynamic mismatch between anode and cathode materials poses an urgent challenge. To this end, many research works related to material development have been dedicated to overcoming the drawbacks. In this review, the energy storage mechanism of PIHCs is briefly introduced. Moreover, the research progress and achievements of anode and cathode materials in recent years are reviewed, including carbon‐based materials, MXenes, transition metal materials, Prussian blue and its analogues. Finally, the challenges and prospects of PIHCs are proposed, together with guiding significant research directions in the future.

show abstract

“…In the context of energy conservation and emission reduction, rechargeable secondary batteries are of great significance for the development of the energy storage industry [1][2][3][4]. Lithium-ion batteries (LIBs) have been developed and widely used in the electronic and transportation system due to the high energy density, negligible memory effect, and low self-discharge [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Flaky N-doped hard carbon anode material for sodium-ion batteries

Zhang,

Fu,

Liu

et al. 2023

Phys. Scr.

View full text Add to dashboard Cite

Hard carbon (HC), as a promising anode material for sodium ion batteries, its sluggish diffusion performance hinders further improvement of electrochemical performance. In the preparation process of HC materials, the screening and treatment of precursors can optimize the structure and morphology of HC products, further affecting electrochemical performance. Here, we use peptone as the precursor of HC and prepare flaky N-doped HC (PFNC) through a one-step annealing method. Benefitting from this structure, the prepared PNFC delivers a specific capacity of 315.5 mAh g-1 at a current density of 20mA g-1 with excellent rate performance and cyclic stability. This work proves that peptone is a valuable carbon precursor, opening a new avenue for further application and development of HC.

show abstract

Porous current collector enables carbon superior electrochemical performance for K-ion capacitors

Cited by 13 publications

References 60 publications

Strategies to develop stable alkali metal anodes for rechargeable batteries

Strategies to develop stable alkali metal anodes for rechargeable batteries

Advanced Electrode Materials for Potassium‐Ion Hybrid Capacitors

Flaky N-doped hard carbon anode material for sodium-ion batteries

Contact Info

Product

Resources

About