Advances in Flexible and Wearable Energy‐Storage Textiles

Liu, Zhuoxin; Mo, Funian; Li, Hongfei; Zhu, Minshen; Wang, Zifeng; Liang, Guojin; Zhi, Chunyi

doi:10.1002/smtd.201800124

Cited by 131 publications

(81 citation statements)

References 190 publications

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“…There exist many reviews discussing porous carbon materials for SCs, such as 2D porous carbons,30 porous carbons for flexible and wearable SCs,31 porous carbons derived from copolymers,23 porous carbons derived from renewable biomasses,32 graphene‐based materials,3 and nanoporous carbons from molecular design 18. These reviews mainly focus on the textural properties, surface chemistries, and capacitive performances of porous carbons.…”

Section: Introductionmentioning

confidence: 99%

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

et al. 2020

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Supercapacitors (SCs) have experienced a significant increase in research activity and commercialization during the past few decades. As the primary and most important electrode active material for commercial SCs, porous carbon is produced at an industrial‐scale through traditional carbonization‐activation strategies. Nevertheless, commercial porous carbon materials have some disadvantages such as high production cost, corrosion of equipment, and emission of toxic gases and byproduct pollutants during production. In recent years, huge efforts have been made to develop novel synthesis strategies for porous carbon materials. This review focuses on the pore formation mechanisms in traditional carbonization‐activation methods, emerging activation methods, template methods, self‐template methods, and novel emerging methods for the synthesis of porous carbons for SCs. Strategies developed so far for the synthesis of porous carbon materials are summarized. The mechanisms and recent advances for each strategy are reviewed. Furthermore, future directions and synthesis strategies for porous carbons are proposed.

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Section: Introductionmentioning

confidence: 99%

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

et al. 2020

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“…From the above results, a high‐performance aqueous Zn/MON cell with a superior capacity, rate, and cycling performance is presented, and a novel H + /Zn 2+ synergistic intercalation mechanism during discharge is also demonstrated. The H + /Zn 2+ cointercalation is vital for the high capacity of MON (275.6 mAh g −1 at 0.1 C) since under a single‐ion intercalation mechanism, the capacity release shall reduce obviously . Besides, the intercalation of H + and Zn 2+ promotes each other thermodynamically.…”

mentioning

confidence: 99%

“…The H + /Zn 2+ cointercalation is vital for the high capacity of MON (275.6 mAh g −1 at 0.1 C) since under a singleion intercalation mechanism, the capacity release shall reduce obviously. [31][32][33] Besides, the intercalation of H + and Zn 2+ promotes each other thermodynamically. The excellent cyclability of MON cathode is summarized as follow: first, the H + /Zn 2+ intercalation/extraction is highly reversible in the MON with tough structural stability; second, a novel nanostructure of MON (≈2.5 nm) with large amount of exposed 1 × 1 tunnels as channels for H + and Zn 2+ intercalation/extraction benefits a lot on the cycling performance.…”

mentioning

confidence: 99%

Unravelling H⁺/Zn²⁺ Synergistic Intercalation in a Novel Phase of Manganese Oxide for High‐Performance Aqueous Rechargeable Battery

Zhao

Chen

Wang

et al. 2019

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Aqueous Zn‐MnO2 batteries using mild electrolyte show great potential in large‐scale energy storage (LSES) application, due to high safety and low cost. However, structure collapse of manganese oxides upon cycling caused by the conversion mechanism (e.g., from tunnel to layer structures for α‐, β‐, and γ‐phases) is one of the most urgent issues plaguing its practical applications. Herein, to avoid the phase conversion issue and enhance battery performance, a structurally robust novel phase of manganese oxide MnO2H0.16(H2O)0.27 (MON) nanosheet with thickness of ≈2.5 nm is designed and synthesized as a promising cathode material, in which a nanosheet structure combined with a novel H+/Zn2+ synergistic intercalation mechanism is demonstrated and evidenced. Accordingly, a high‐performance Zn/MON cell is achieved, showing a high energy density of ≈228.5 Wh kg−1, impressive cyclability with capacity retention of 96% at 0.5 C after 300 cycles, as well as exhibiting rate performance of 115.1 mAh g−1 at current rate of 10 C. To the best current knowledge, this H+/Zn2+ synergistic intercalation mechanism is first reported in an aqueous battery system, which opens a new opportunity for development of high‐performance aqueous Zn ion batteries for LSES.

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“…Besides stretchability, desired properties for the stretchable substrate also include high resistance to chemicals and good stability for thermal and radiation loadings, as well as excellent surface properties and adhesion with nanomaterials. It should be noticed that although most of the polymer substrates in stretchable supercapacitors only acted as supporting substrates, some carbon‐based substrates played two roles in the devices, i.e., serving as both substrate and active electrode . Currently a variety of stretchable substrates, including VHB (3M Inc. USA), PDMS, polyurethane (PU), thermoplastic polyurethanes (TPU), and thermoplastic elastomers (TPE) are commonly used due to their superior performance in accommodating large strain deformations and significant shape change like bending, twisting, folding, and stretching.…”

Section: Substrates For Stretchable Supercapacitorsmentioning

confidence: 99%

“…Meanwhile, elastic threads, carbon clothes/fibers, and yarn‐based wire substrates are also fabricated for 1D wearable devices, typically woven into textiles and fabrics that can sustain a certain level of strains . Additionally, for wire/fiber‐shaped designs as illustrated in Section , a large number of wire/fiber SCs with various electrode materials can be fabricated using either coaxial or twisted structures and different types of wire‐like integrated systems have been designed for wearable electronics applications .…”

Section: Substrates For Stretchable Supercapacitorsmentioning

confidence: 99%

Recent Advances in Stretchable Supercapacitors Enabled by Low‐Dimensional Nanomaterials

Cao

Chu

Zhou

et al. 2018

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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.

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Advances in Flexible and Wearable Energy‐Storage Textiles

Cited by 131 publications

References 190 publications

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

Unravelling H⁺/Zn²⁺ Synergistic Intercalation in a Novel Phase of Manganese Oxide for High‐Performance Aqueous Rechargeable Battery

Recent Advances in Stretchable Supercapacitors Enabled by Low‐Dimensional Nanomaterials

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Advances in Flexible and Wearable Energy‐Storage Textiles

Cited by 131 publications

References 190 publications

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

Synthesis Strategies of Porous Carbon for Supercapacitor Applications

Unravelling H+/Zn2+ Synergistic Intercalation in a Novel Phase of Manganese Oxide for High‐Performance Aqueous Rechargeable Battery

Recent Advances in Stretchable Supercapacitors Enabled by Low‐Dimensional Nanomaterials

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Unravelling H⁺/Zn²⁺ Synergistic Intercalation in a Novel Phase of Manganese Oxide for High‐Performance Aqueous Rechargeable Battery