Highly conductive templated-graphene fabrics for lightweight, flexible and foldable supercapacitors

Zhang, Ping; Zhang, Hanzhi; Yan, Casey; Zheng, Zijian; Yu, You

doi:10.1088/2053-1591/aa7856

Cited by 6 publications

(5 citation statements)

References 47 publications

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“…PEDOT:PSS 3.00E+03 [93] Textile (Cellulose) MnO2 1.39E+02 [262] Textile (Cotton) 2.50e+00 to 8.75e+01 [138,142,242] Textile (Cotton) Ni 5.70E+01 [144] Textile (Cotton) PANI 2.46E+02 [251] Textile (Cotton) CNTs 5.70E+02 [150] Textile (PET) 7.56E-01 [24] Textile (Polyester) Ni-MOF 9.50E+01 [246]…”

Section: Supercapacitorsmentioning

confidence: 99%

“…[198] Coating flexible and stretchable platforms (e.g., elastomers or textiles) Textile () 7.10E+05 [132][133][134] Textile (Aramid) 2.70E+03 [135] Textile (Carbon Cloth) PANI 7.70E+00 [136] Textile (Carbon Cloth) PEDOT:PSS 6.40E+04 [93] Textile (Cellulose) 1.00E+01 [137] Textile (Cotton) 1.00E+08 refs. [26,85,[138][139][140][141][142][143][144][145][146][147][148][149] Textile (Cotton) Ni 8.00E-01 [144] Textile (Cotton) ZnO NPs 1.44E+02 1.58E+03 [92] Textile (Cotton) CNTs 2.70E+01 3.86E+01 [150] Textile (Cotton) MnO2 9.00E+01 [25] Textile (Cotton) PEDOT:PSS 1.50E+02 [30,88,151,152] Textile (Glass) 5.00E-03 [153][154][155][156] with conductive nanomaterials enables strain sensors with large elastic regions to achieve stretchability values between 10% and 800%. [198] As with conventional sensors, the working principle behind these conductive coatings is a function of the intrinsic piezoresistive effect and sensor geometry, i.e., the change in resistance due to the strain disrupting the substrate's mechanical integrity, most evident in the case of woven textiles where adjacent fibers might be pulled apart, creating gaps in the electrical network.…”

Section: Strain Sensorsmentioning

confidence: 99%

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Electrically Conductive 2D Material Coatings for Flexible and Stretchable Electronics: A Comparative Review of Graphenes and MXenes

Mercadillo

Chan

Caironi

et al. 2022

Adv Funct Materials

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There is growing interest in transitioning electronic components and circuitry from stiff and rigid substrates to more flexible and stretchable platforms, such as thin plastics, textiles, and foams. In parallel, the push for more sustainable, biocompatible, and cost-efficient conductive inks to coat these substrates, has led to the development of formulations with novel nanomaterials. Among these, 2D materials, and particularly graphenes and MXenes, have received intense research interest due to their increasingly facile and scalable production, high electrical conductivity, and compatibility with existing manufacturing techniques. They enable a range of electronic devices, including strain and pressure sensors, supercapacitors, thermoelectric generators, and heaters. These new flexible and stretchable electronic devices developed with 2D material coatings are poised to unlock exciting applications in the wearable, healthcare and Internet of Things sectors. This review has surveyed key data from more than 200 articles published over the last 6 years, to provide a quantitative analysis of recent progress in the field and shade light on future directions and prospects of this technology. We find that despite the different chemical origins of graphenes and MXenes, their shared electrical properties and 2D morphology, guarantee intriguing performance in end applications, leaving plenty of space for shared progress and advancements in the future.

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Section: Supercapacitorsmentioning

confidence: 99%

Section: Strain Sensorsmentioning

confidence: 99%

Electrically Conductive 2D Material Coatings for Flexible and Stretchable Electronics: A Comparative Review of Graphenes and MXenes

Mercadillo

Chan

Caironi

et al. 2022

Adv Funct Materials

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“…More importantly, when applying the NIAPM strategy on a sheet of cotton fabric, a Ni-metallized fabric can be obtained with excellent conductivity (∼1.0 Ω/□). Such an extremely flexible conductor is an ideal current collector for fabricating a high-performance bendable supercapacitor. , On the other hand, to demonstrate the full use of green tea in electronics, the electrode material was prepared by treating the recycled waste of green tea (in the first step of NIAPM) with KOH and carbonization at a high temperature (Figures a and ). − The well-distributed activated porous carbon (TC) featured high specific surface area (1500 m 2 ·g –1 ), large pore volume (0.8 cm 3 ·g –1 ), as well as pore size (3.15 nm), showing a promising application in a supercapacitor (Figure S6).…”

Section: Resultsmentioning

confidence: 99%

Universal Nature-Inspired and Amine-Promoted Metallization for Flexible Electronics and Supercapacitors

Zhang

et al. 2018

ACS Appl. Mater. Interfaces

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Economical and abundant natural biological materials provide a low-cost and scalable approach to develop next-generation flexible and wearable electronics. Herein, a universal strategy of nature-inspired and amine-promoted metallization, namely, NIAPM, is presented to make high-quality metals for electronics fabrication. The introduction of poly(ethyleneimine) (PEI) significantly shortens the time of metallization from >48 h to ≈6 h, and the phenol compounds (TP) from green tea make metals bond tightly on all demonstrated surfaces. The as-made thin metal films of Cu and Ni feature high conductivity (∼1.0 Ω/□), excellent mechanical stability and flexibility even at the bending radius of ∼1 mm. Moreover, NIAPM is compatible with typical lithography techniques for fabricating metallic patterns, showing considerable potential applications in flexible electronics. As a proof-of-concept, two devices based on melamine-templated Cu sponges are first prepared for detecting the change of external pressure with a resistance sensitivity of 18.1 kPa and collecting high-viscosity crude oil, respectively. Then, a high-performance bendable solid supercapacitor is demonstrated using as-prepared Ni metallized fabrics and the activated porous carbon from the recycled waste in NIPAM as flexible electrodes, which possesses comparable areal capacitance of 45.5 F·g, and energy density of 7.88 Wh·g at the power density of 35 W·g. Therefore, it is anticipated that such a time-saving, cost-effective and whole solution-processed NIAPM strategy can inspire further practical applications in the fields of surface chemistry, material science, flexible and wearable electronics, etc.

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“…A key research element of SC is to develop highly flexible metallic current collectors. In the last few years, PAMD has made a significant contribution to this field by developing textile‐based SCs …”

Section: Applications Of Pamd For Flexible and Wearable Electronic Dementioning

confidence: 99%

Polymer‐Assisted Metal Deposition (PAMD) for Flexible and Wearable Electronics: Principle, Materials, Printing, and Devices

2019

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such as conducting polymers and carbon nanotubes, metal-the most conventional conductor-still outperforms significantly in terms of the electrical conductivity, device compatibility, materials stability, and cost-effectiveness. [1,[30][31][32][33][34][35][36][37][38] In particular, with the recent understanding of the nanomechanics of the metal and the soft structural design, metal conductors are indispensable for most of the flexible and wearable applications.In the literature, the fabrication of metal conductors typically consists of vacuum deposition of the metal and subsequent patterning with photolithography. Although this fabrication strategy can be directly applied on flexible polymeric substrates, it is often too costly for most flexible applications and may encounter materials instability issues of the flexible substrates at high vacuum or strong solvent. In addition, vacuum technology is not suitable for coating substrates with 3D structures such as foams, fibers, and arbitrary surfaces. This has led to extensive research on developing solution-based metal deposition and printing methods in the past three decades. The most reported solution-based strategy is the so-called "metal ink" method, in which solution-dispersed nanostructured metal particles (including nanoparticles (NPs), nanowires, nanotubes, and nanoplates) or metal precursors are cast or printed onto the flexible substrates and then thermally sintered or chemically reduced to yield the metallic conductors. [39][40][41][42][43] Nevertheless, they are still not widely used because of the following reasons. 1) The metal conductor fabricated through the "metal ink" method shows much lower electrical conductivity compared to their bulk, due to the additives of the ink (such as surfactants, binders, and stabilizers) and the large contact resistance between the NPs. [44,45] 2) The "metal ink" method works very well with noble metals such as Au and Ag, but is not compatible with more frequently used, yet less stable metals such as Cu and Ni. Even though there has been a major shift of research focus from Ag to Cu in recent years, inks for making high-quality Cu or Ni conductors at low-temperature and in the air atmosphere are yet to be developed. 3) The metal conductors made by the "metal ink" method are more suitable for interconnects but are less suitable for electrode applications due to the high roughness and impurity of the metal film. 4) Penetration of the "metal ink" into highly porous substrates or structures with small gaps is The rapid development of flexible and wearable electronics favors low-cost, solution-processing, and high-throughput techniques for fabricating metal contacts, interconnects, and electrodes on flexible substrates of different natures. Conventional top-down printing strategies with metal-nanoparticleformulated inks based on the thermal sintering mechanism often suffer from overheating, rough film surface, low adhesion, and poor metal quality, which are not desirable for most flexible electronic applications. In recent ...

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Highly conductive templated-graphene fabrics for lightweight, flexible and foldable supercapacitors

Cited by 6 publications

References 47 publications

Electrically Conductive 2D Material Coatings for Flexible and Stretchable Electronics: A Comparative Review of Graphenes and MXenes

Electrically Conductive 2D Material Coatings for Flexible and Stretchable Electronics: A Comparative Review of Graphenes and MXenes

Universal Nature-Inspired and Amine-Promoted Metallization for Flexible Electronics and Supercapacitors

Polymer‐Assisted Metal Deposition (PAMD) for Flexible and Wearable Electronics: Principle, Materials, Printing, and Devices

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