Fundamentals, advances and challenges of transition metal compounds-based supercapacitors

Liu, Rong; Zhou, Ao; Zhang, Xiaorong; Mu, Jingbo; Che, Hongwei; Wang, Yanming; Wang, Tingting; Zhang, Zhixiao; Kou, Zongkui

doi:10.1016/j.cej.2021.128611

Cited by 305 publications

(115 citation statements)

References 226 publications

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“…Numerous attempts have been accordingly made to improve the electrochemical performance of SCs through these aspects [23][24][25][26][27][28]. Moreover, considering the structural characteristics of SCs, achieving advanced multifunctional WSCs depends on the specific characteristics of the electrode materials.…”

Section: Soft Sciencementioning

confidence: 99%

“…Tremendous efforts have been made in the investigation of metal compound electrode materials for SCs, including meta oxides, metal nitrides, metal sulfides and metal Soft Science carbides [26]. According the energy storage mechanism of supercapacitor, metal-based electrodes which possess pseudocapacitance behavior could obtain higher electrochemical performance compare with carbon-based electrodes which behavior EDLC behavior.…”

Section: Metal Compound Electrodes For Wscsmentioning

confidence: 99%

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Soft materials for wearable supercapacitors

Jiang¹,

Liu²,

Wang³

et al. 2021

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Along with the experienced rapid progress of wearable and portable electronic devices including electrical sensors, flexible displays, and health monitors, there is an ever-growing demand for wearable power sources. Supercapacitors as a new kind of energy storage device have received considerable attention for decades due to their high-power density, excellent cycling stability and easy fabrication. To fulfill the demand of wearable power sources, wearable supercapacitors are also further developed and studied. Newly electrode materials which play a significant role in

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Section: Soft Sciencementioning

confidence: 99%

Section: Metal Compound Electrodes For Wscsmentioning

confidence: 99%

Soft materials for wearable supercapacitors

Jiang¹,

Liu²,

Wang³

et al. 2021

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“…Owing to the reduction of fossil fuel reserves and global warming, developing alternative clean energy sources, including solar, wind, as well as tidal energy is urgent [ 1 , 2 , 3 ]. However, they are intermittent energy sources affected by the natural environment; thus, they need to be converted and stored, which has drawn researchers’ interest in the R&D of sustainable energy conversion and storage technologies [ 2 , 4 , 5 , 6 ]. Among a variety of energy storage devices, rechargeable batteries and supercapacitors have been the two dominating electrochemical energy storage technologies ( Figure 1 ) [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, they are intermittent energy sources affected by the natural environment; thus, they need to be converted and stored, which has drawn researchers’ interest in the R&D of sustainable energy conversion and storage technologies [ 2 , 4 , 5 , 6 ]. Among a variety of energy storage devices, rechargeable batteries and supercapacitors have been the two dominating electrochemical energy storage technologies ( Figure 1 ) [ 2 , 3 ]. Rechargeable batteries have been promising within consumer electronics together with electric vehicles because of their high energy density.…”

Section: Introductionmentioning

confidence: 99%

Expanded Graphite-Based Materials for Supercapacitors: A Review

et al. 2022

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Supercapacitors have gained e wide attention because of high power density, fast charging and discharging, as well as good cycle performance. Recently, expanded graphite (EG) has been widely investigated as an effective electrode material for supercapacitors owing to its excellent physical, chemical, electrical, and mechanical properties. Based on charge storage mechanism, supercapacitors have been divided into symmetric, asymmetric, and hybrid supercapacitors. Here, we review the study progress of EG-based materials to be electrode materials. Furthermore, we discuss the application prospects and challenges of EG-based materials in supercapacitors.

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“…The application of decentralized energy resources and storage technologies in the field of portable, flexible, and smart electronics has significant Hybrid nanostructured PAN@NiCu(CO 3 )(OH) 2 composite for flexible high-performance supercapacitors www.mrs.org/jmr © The Author(s) 2021 2 Article energy. SCs have gained increasing attention owing to their fast charge and discharge rates, high power density, long cycle life, and high reliability [5][6][7]. However, endowing conventional SCs with good flexibility as well as high energy density is challenging because both charge collectors (substrates) and electrode materials can experience fracture and delamination during flexing.…”

Section: Introductionmentioning

confidence: 99%

Hybrid nanostructured PAN@NiCu(CO3)(OH)2 composite for flexible high-performance supercapacitors

Lee

Verma

Lê

et al. 2021

Journal of Materials Research

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A binder-free porous NiCu(CO3)(OH)2 composite was grown on a polyacrylonitrile (PAN) nanofiber substrate using a hydrothermal method. PAN nanofibers were fabricated by the electrospinning method, thus producing a substrate with a nano-sized diameter and high specific surface area. The composite NiCu(CO3)(OH)2 nanowires on PAN nanofibers provided the large specific surface area required for the redox reaction. Transition metal-based nanowires and nano-sized PAN substrates indicate a synergistic effect in electrochemical performance. The NiCu(CO3)(OH)2 on PAN composite showed a remarkable maximum specific capacity of 870 mAh g−1 at a current density of 3 A g−1, which indicates that it can be a suitable electrode material. In addition, an asymmetric supercapacitor with NiCu(CO3)(OH)2 on PAN composite as the cathode and graphene as the anode showed an ultra-high energy density of 89.2 W h kg−1 at a power density of 835 W kg−1 and a capacitance retention of 90.1% after 5000 cycles. Graphic abstract

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Fundamentals, advances and challenges of transition metal compounds-based supercapacitors

Cited by 305 publications

References 226 publications

Soft materials for wearable supercapacitors

Soft materials for wearable supercapacitors

Expanded Graphite-Based Materials for Supercapacitors: A Review

Hybrid nanostructured PAN@NiCu(CO3)(OH)2 composite for flexible high-performance supercapacitors

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