High rate integrated quasi-solid state supercapacitors based on nitrogen-enriched active carbon fiber/reduced graphene oxide nanocomposite

Qiu, Xiaoming; Xiao, Zechuan; Wang, Luning; Fan, Li‐Zhen

doi:10.1016/j.carbon.2018.01.033

Cited by 50 publications

(8 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…EDLCs are usually operated through the adsorption of charged ions for electrodes possessing differing polarities within the electrolyte to generate electric double layers for electrical energy storage . Carbon‐based materials including carbon nanotubes, graphene, onion‐like carbon, and activated carbon have become the most common materials utilized for EDLC electrodes due to their high surface area, exceptional conductivity, as well as good compatibility with multiple strategies to achieve stretchability. As shown in Figure a, a stretchable electrode of SC was made of buckled single‐walled carbon nanotube (SWCNT) film that was transferred onto a prestretched polydimethylsiloxane (PDMS) substrate.…”

Section: Categories Of Stretchable Supercapacitorsmentioning

confidence: 99%

Recent Advances in Stretchable Supercapacitors Enabled by Low‐Dimensional Nanomaterials

Cao

Chu

Zhou

et al. 2018

Small

View full text Add to dashboard Cite

wearable devices, [1,2] sensitive robotic skin, [3] electronic papers, [4] soft surgical tools, [5] electronic imaging devices, [5] in vivo health monitors, [3] as well as various collapsible gadgets [6] has attracted widespread attention upon flexible and stretchable electronics with a combination of advanced electrical performance with robust mechanical properties such as stretchability, foldability, twistability, flexibility, and durability. [7,8] In particular, device stretchability is highly desirable for wearable electronics due to the inevitable deformation (strain) generated in human skin and human body activity. As essential components of stretchable electronics systems, energy conversion and storage devices should be capable of sustaining their performance when subjected to the large strains that may be experienced by the highly stretchable electronics in various applications. The consistency of stretchability in both electronics and energy devices becomes the key to the successful integration of a combined self-powered stretchable system in wearable electronics applications. To date, significant effort and progress have been made in developing stretchable energy devices such as batteries, supercapacitors (SCs), and solar cells. [9][10][11][12][13] Although batteries are typically favored among power sources for electronic devices due to their superior power density and energy Supercapacitors (SCs) have shown great potential for mobile energy storage technology owing to their long-term durability, electrochemical stability, structural simplicity, as well as exceptional power density without much compromise in the energy density and cycle life parameters. As a result, stretchable SC devices have been incorporated in a variety of emerging electronics applications ranging from wearable electronic textiles to microrobots to integrated energy systems. In this review, the recent progress and achievements in the field of stretchable SCs enabled by low-dimensional nanomaterials such as polypyrrole, carbon nanotubes, and graphene are presented. First, the three major categories of stretchable supercapacitors are discussed: double-layer supercapacitors, pseudo-supercapacitors, and hybrid supercapacitors. Then, the representative progress in developing stretchable electrodes with low-dimensional (0D, 1D, and 2D) nanomaterials is described. Next, the design strategies enabling the stretchability of the devices, including the wavy-shape design, wire-shape design, textile-shape design, kirigami-shape design, origami-shape design, and serpentine bridgeisland design are emphasized, with the aim of improving the electrochemical performance under the complex stretchability conditions that may be encountered in practical applications. Finally, the newest developments, major challenges, and outlook in the field of stretchable SC development and manufacturing are discussed. Stretchable SupercapacitorsThe ORCID identification number(s) for the author(s) of this article can be found under https://doi.

show abstract

Section: Categories Of Stretchable Supercapacitorsmentioning

confidence: 99%

Recent Advances in Stretchable Supercapacitors Enabled by Low‐Dimensional Nanomaterials

Cao

Chu

Zhou

et al. 2018

Small

View full text Add to dashboard Cite

show abstract

“…24 Although a large number of pores are introduced through physical or chemical activation to expand the surface area of ECNF, the well-developed porous structure and mechanical exibility are still mutually restrictive. 25 To circumvent this contradiction and improve the charge-storage capacity of ECNFs, highly crystallized nanocarbons (e.g., graphene nanoribbons, 26 carbon nanotubes, 27 and graphene nanosheets 28 ) have been used as reinforcing phases. However, the large-sized feature of these nanocarbons restricts their compatibility with ECNFs, which hinders their entire embedding and eventually weakens the reinforcing role.…”

Section: Introductionmentioning

confidence: 99%

“…25 To circumvent this contradiction and improve the charge-storage capacity of ECNFs, highly crystallized nanocarbons ( e.g. , graphene nanoribbons, 26 carbon nanotubes, 27 and graphene nanosheets 28 ) have been used as reinforcing phases. However, the large-sized feature of these nanocarbons restricts their compatibility with ECNFs, which hinders their entire embedding and eventually weakens the reinforcing role.…”

Section: Introductionmentioning

confidence: 99%

A flexible and stable zinc-ion hybrid capacitor with polysaccharide-reinforced cross-linked hydrogel electrolyte and binder-free carbon cathode

Gao

Guo

et al. 2022

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

“…What is more, the well-developed pores also break the continuous conjugated structure of the carbon skeleton, resulting in the drastically reduced conductivity as well as unsatisfied rate performance. To improve both mechanical property and conductivity, highly crystallized nanocarbons such as carbon nanotubes, − graphene nanoribbons, , and graphene nanosheets − have been introduced as the reinforcing phase during electrospinning. However, large-sized nanocarbons with poor compatibility are hard to be uniformly embedded into ECNFs at high concentration to build up an entire reinforcing phase, resulting in the limited improvement.…”

Section: Introductionmentioning

confidence: 99%

Graphene Quantum Dot Reinforced Electrospun Carbon Nanofiber Fabrics with High Surface Area for Ultrahigh Rate Supercapacitors

Zhao

Zhu

et al. 2020

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

High surface area, good conductivity, and high mechanical strength are important for carbon nanofiber fabrics (CNFs) as high-performance supercapacitor electrodes. However, it remains a big challenge because of the trade-off between the strong and continuous conductive network and a well-developed porous structure. Herein, we report a simple strategy to integrate these properties into the electrospun CNFs by adding graphene quantum dots (GQDs). The uniformly embedded GQDs play a crucial bifunctional role in constructing an entire reinforcing phase and conductive network. Compared with the pure CNF, the GQD-reinforced activated CNF exhibits a greatly enlarged surface area from 140 to 2032 m2 g–1 as well as a significantly improved conductivity and strength of 5.5 and 2.5 times, respectively. The mechanism of the robust reinforcing effect is deeply investigated. As a freestanding supercapacitor electrode, the fabric performs a high capacitance of 335 F g–1 at 1 A g–1 and extremely high capacitance retentions of 77% at 100 A g–1 and 45% at 500 A g–1. Importantly, the symmetric device can be charged to 80% capacitance within only 2.2 s, showing great potential for high-power startup supplies.

show abstract

High rate integrated quasi-solid state supercapacitors based on nitrogen-enriched active carbon fiber/reduced graphene oxide nanocomposite

Cited by 50 publications

References 36 publications

Recent Advances in Stretchable Supercapacitors Enabled by Low‐Dimensional Nanomaterials

Recent Advances in Stretchable Supercapacitors Enabled by Low‐Dimensional Nanomaterials

A flexible and stable zinc-ion hybrid capacitor with polysaccharide-reinforced cross-linked hydrogel electrolyte and binder-free carbon cathode

Graphene Quantum Dot Reinforced Electrospun Carbon Nanofiber Fabrics with High Surface Area for Ultrahigh Rate Supercapacitors

Contact Info

Product

Resources

About