Utilizing hybrid faradaic mechanism via catalytic and surface interactions for high-performance flexible energy storage system

Lee, Dong Gyu; Choi, Hyeonggeun; Park, Yeonsu; Kim, Min Cheol; Park, Jong Bae; Lee, Suok; Cho, Younghyun; Ahn, Wook; Jang, A‐Rang; Sohn, Jung Inn; Hong, John; Lee, Young‐Woo

doi:10.1016/j.jechem.2023.04.031

Cited by 7 publications

(2 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Unlike conventional rigid planar HSCs, the twisted-type HSCs can be directly used as flexible power sources in wearable, self-powered electronic devices [ 275 ]. They can be either co-woven/knitted into existing fabrics/textiles or they can be woven/knitted by themselves [ 276 ]. Recently, many advanced fiber-shaped HSC devices have been widely reported in the literature [ 276 , 277 , 278 , 279 , 280 ].…”

Section: Design Structures Of Hybrid Supercapacitorsmentioning

confidence: 99%

“…They can be either co-woven/knitted into existing fabrics/textiles or they can be woven/knitted by themselves [ 276 ]. Recently, many advanced fiber-shaped HSC devices have been widely reported in the literature [ 276 , 277 , 278 , 279 , 280 ]. For instance, Sun et al [ 280 ] reported a twisted-type HSC device assembled by twisting a molybdenum-nickel-cobalt ternary oxide/carbon nanotube fiber (MNCO/CNTF) positive electrode and thin carbon-coated vanadium nitride (VN) nanowire arrays on a CNTF negative electrode ( Figure 10 a), which delivered a high specific capacitance of 490.7 F cm −3 (1840 mF cm −2 ) at a current density of 1 mA cm −2 and outstanding flexibility and stability with capacitance retention maintained at 90.2% after bending 3500 times.…”

Section: Design Structures Of Hybrid Supercapacitorsmentioning

confidence: 99%

See 1 more Smart Citation

Electrode Materials, Structural Design, and Storage Mechanisms in Hybrid Supercapacitors

Du,

Lin,

Wang

et al. 2023

Molecules

View full text Add to dashboard Cite

Currently, energy storage systems are of great importance in daily life due to our dependence on portable electronic devices and hybrid electric vehicles. Among these energy storage systems, hybrid supercapacitor devices, constructed from a battery-type positive electrode and a capacitor-type negative electrode, have attracted widespread interest due to their potential applications. In general, they have a high energy density, a long cycling life, high safety, and environmental friendliness. This review first addresses the recent developments in state-of-the-art electrode materials, the structural design of electrodes, and the optimization of electrode performance. Then we summarize the possible classification of hybrid supercapacitor devices, and their potential applications. Finally, the fundamental theoretical aspects, charge-storage mechanism, and future developing trends are discussed. This review is intended to provide future research directions for the next generation of high-performance energy storage devices.

show abstract

Section: Design Structures Of Hybrid Supercapacitorsmentioning

confidence: 99%

Section: Design Structures Of Hybrid Supercapacitorsmentioning

confidence: 99%

Electrode Materials, Structural Design, and Storage Mechanisms in Hybrid Supercapacitors

Du,

Lin,

Wang

et al. 2023

Molecules

View full text Add to dashboard Cite

show abstract

Recent Progress in Electric‐field Enhanced 3D Graphene Electrodes using Laser Scribing for In‐plane Microsupercapacitors

Pak,

Jang,

Lee

2024

ChemElectroChem

Self Cite

View full text Add to dashboard Cite

The increasing demand for miniature, flexible electronic devices have fueled the need for compact and high‐performing energy storage solutions. Microsupercapacitors (mSCs) with reduced dimension and novel electrode design have gained prominence. This concept paper summarizes and views the recent advancements in mSCs with a focus on 3D graphene electrodes and their novel electrode design to increase energy performance of the devices. Especially, we focus on these 3D graphene structures fabricated using a laser‐scribing method which offer an efficient, cost‐effective approach for enhanced mSC performance. Further, this work delves into the vital link between the electrical field effect and geometrically engineered interdigitated electrodes, which is pivotal for maximizing the ion transport and mSC energy storage performance. The insights presented here are promising for meeting the power requirements of future miniature electronics.

show abstract

Influence of Oxygen Vacancies Introduced via Acceptor (Gadolinium) Doping to the Pseudocapacitive Properties of Nano‐Sized Cerium Oxide

Park,

Rhyu,

Lee

et al. 2024

Small

View full text Add to dashboard Cite

The voluntary introduction of defects can be considered an effective strategy for enhancing the electrochemical properties of metal oxide electrodes. In this study, the enhanced pseudocapacitive properties of an acceptor (Gd) doped cerium oxide nanoparticle—a sustainable metal oxide with low environmental and human toxicity—are investigated in depth using ex situ X‐ray photoemission spectroscopy (XPS) and electrochemical impedance spectroscopy (EIS). Interestingly, with 15 at% Gd doping (15GDC), the specific capacitance of the nanoparticles measured at 1 A g−1 enhanced to 547.8 F g−1, which is fivefold higher than undoped CeO2 (98.7 F g−1 at 1 A g−1). The rate‐dependent capacitance is also improved for 15GDC, which showed a 31.0% decrease in the specific capacitance upon a tenfold increase in the current density, while CeO2 showed a 49.9% decrease. The enhanced electrochemical properties are studied in depth via ex situ XPS and EIS analysis, which revealed that the oxygen vacancies at the surface of the nanoparticles played important roles in enhancing both the specific capacitance and the high‐rate performance of 15GDC by acting as the active site for pseudocapacitive redox reaction and allowing fast diffusion of oxygen ions at the surface of 15GDC nanoparticles.

show abstract

Utilizing hybrid faradaic mechanism via catalytic and surface interactions for high-performance flexible energy storage system

Cited by 7 publications

References 36 publications

Electrode Materials, Structural Design, and Storage Mechanisms in Hybrid Supercapacitors

Electrode Materials, Structural Design, and Storage Mechanisms in Hybrid Supercapacitors

Recent Progress in Electric‐field Enhanced 3D Graphene Electrodes using Laser Scribing for In‐plane Microsupercapacitors

Influence of Oxygen Vacancies Introduced via Acceptor (Gadolinium) Doping to the Pseudocapacitive Properties of Nano‐Sized Cerium Oxide

Contact Info

Product

Resources

About