An Integrated “Energy Wire” for both Photoelectric Conversion and Energy Storage

Chen, Tao; Qiu, Longbin; Yang, Zhibin; Cai, Zaisheng; Ren, Jing; Li, Houpu; Lin, Huijuan; Sun, Xuemei; Peng, Huisheng

doi:10.1002/anie.201207023

Cited by 412 publications

(292 citation statements)

References 24 publications

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“…The observed capacitance is higher than the one reported compounds of MWCNTs ). [8,9,11,28] However,t he obtained capacitance is still lower than the reported carbon composite of MWCNT/ carbon nanofibers (6.3 mF cm À1 ). [12] This high capacitance of the carbon nanofibers was attributedt ot he addition of MWCNTs.…”

mentioning

confidence: 67%

Flexible Fiber Supercapacitor Using Biowaste‐Derived Porous Carbon

Senthilkumar

Selvan

2015

ChemElectroChem

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A flexible fiber supercapacitor (SC) was fabricated by using porous carbon as the electrode material and polyvinylalcohol–H3PO4 as the gel‐polymer electrolyte. The porous carbon was derived from dead Ficus religiosa leaves through a single‐step carbonization method and characterized by using BET surface area and TEM analysis as well as XRD, Raman, and FTIR techniques. The fabricated fiber SC works up to 0.8 V and delivers a gravimetric (length) capacitance of 3.4 F g−1 (4.2 mF cm−1) at 1 mA. In addition, it exhibits a maximum gravimetric (length) energy density of 311 mWh kg−1 (37.3×10−8 Wh cm−1) at a power density of 58 W kg−1 (70.3 μW cm−1) with a capacitance retention of 88 % over 4000 cycles.

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confidence: 67%

Flexible Fiber Supercapacitor Using Biowaste‐Derived Porous Carbon

Senthilkumar

Selvan

2015

ChemElectroChem

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“…[48] Peng et al applied this fiber-shape design concept to various energy storage devices, including LIBs, [137,138] SCs, [138,139] lithium-air batteries (Figure 13a), [140] lithium-sulfur batteries, [141] aluminaair batteries, [142] and smart energy harvest devices, [143] as well as to integrated photoelectric conversion and energy storage wires. [144] Two parallel-aligned MWCNTs/ LiMn 2 O 4 cathode and MWCNTs/Li 4 Ti 5 O 12 anode were assembled into a wire-shaped LIB, [145] and the capacity declines by only around 3% after bending for 1000 cycles. After winding the wire-shaped LIB into a spring-like structure, its capacity remains at 84% after being stretched to 100% for 200 cycles.…”

Section: Architectural Design Of Flexible Energy Storage Devicesmentioning

confidence: 99%

Mechanical Analyses and Structural Design Requirements for Flexible Energy Storage Devices

Mao

Meng

Ahmad

et al. 2017

Advanced Energy Materials

178

145

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degree of the entire electronic systems. In the integrated flexible electronic system, energy storage devices [14,[16][17][18][19][20] play important roles in connecting the preceding energy harvesting devices and the following energy utilization devices (Figure 1). Rechargeable secondary batteries and supercapacitors (SCs) are two typical energy storage devices. [21] Several excellent review papers [21][22][23][24][25][26] reported significant progresses achieved in flexible lithium-ion batteries (LIBs) and SCs by taking advantage of novel electrode materials, current collectors, and solid-state electrolytes. The application areas and lifetime of flexible power sources strongly depend on their mechanical deformation tolerance and the electrical property retention under deformation. Qualified flexible power sources should be able to endure high strain induced by external mechanical deformation, such as bending, compressing, stretching, folding, and twisting, while maintaining their electrochemical performance stability and structural integrity. Therefore, the mechanical reliability assessment and electrical property analysis of flexible devices need to be given much attention for future application.Tolerance in bending into a certain curvature is the major mechanical deformation characteristic of flexible energy storage devices. Thus far, several bending characterization parameters and various mechanical methods have been proposed to evaluate the quality and failure modes of the said devices by investigating their bending deformation status and received strain. Some of these mechanical metrologies were derived from the early research on flexible semiconductor devices of micro-electromechanical system (MEMS) [27,28] and TFTs. [29] However, comparing those numerous measurement data with one another is difficult because of the various theories and methods adopted by different research groups and the lack of unified assessment criteria. [26] The flexibility of flexible devices is generally realized not only by use of intuitive soft electrode materials but also by optimizing their mechanical structural design. [25] Detailed analysis on bending mechanics combining experimental and theoretical results provide not only reliable test methods to describe the bending state but also guidance for configuration design of devices against mechanical failure.The current review emphasizes on three main points: (1) key parameters that characterize the bending level of flexible energy storage devices, such as bending radius, bending Flexible energy storage devices with excellent mechanical deformation performance are highly required to improve the integration degree of flexible electronics. Unlike those of traditional power sources, the mechanical reliability of flexible energy storage devices, including electrical performance retention and deformation endurance, has received much attention. To provide the guideline for the construction design of devices, the strain distribution and failure modes in the entire architecture should b...

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“…Recently, there are many published results on yarn based textile DSSCs, [14][15][16][17][18][19][20][21][22][23][24][25] have been woven into textiles. At the same time research studies show the bending cycles will significantly disable or degrade the PV yarns performance.…”

Section: Introductionmentioning

confidence: 99%

“…At the same time research studies show the bending cycles will significantly disable or degrade the PV yarns performance. 19,21,23 In the conventional DSSCs architecture, there are two fluorine tin oxide (FTO) coated glass substrates sandwiched together with the introduction of liquid electrolyte in between them. Approaches to the fabric DSSCs has replaced one of the two FTO coated glass slides to the conductive fabrics, for example, carbon nanotube coated fabrics, 26 nickel coated woven polyester fabric 27 and graphene coated cotton fabrics.…”

Section: Introductionmentioning

confidence: 99%

Fully spray-coated organic solar cells on woven polyester cotton fabrics for wearable energy harvesting applications

Arumugam

Sundaram

et al. 2016

J. Mater. Chem. A

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a This paper presents the novel use of spray-coating to fabricate organic solar cells on fabrics for wearable energy harvesting applications. The surface roughness of standard woven 65/35 polyester cotton fabric used in this work is of the order of 150 µm and this is reduced to few microns by a screen printed interface layer. This pre-treated fabric substrate with reduced surface roughness was used as the target substrate for the spray-coated fabric organic solar cells that contains multiple layers of electrodes and active materials. A fully spray-coated photovoltaic (PV) devices fabricated on fabric substrates has been successfully demonstrated with comparable power conversion efficiency to the glass based counterparts. All PV devices are characterised under simulated AM 1.5 conditions. Device morphologies were examined by scanning electron microscopy (SEM) and atomic force microscopy (AFM). This approach is potentially suitable for the low cost integration of PV devices into clothing and other decorative textiles.

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An Integrated “Energy Wire” for both Photoelectric Conversion and Energy Storage

Cited by 412 publications

References 24 publications

Flexible Fiber Supercapacitor Using Biowaste‐Derived Porous Carbon

Flexible Fiber Supercapacitor Using Biowaste‐Derived Porous Carbon

Mechanical Analyses and Structural Design Requirements for Flexible Energy Storage Devices

Fully spray-coated organic solar cells on woven polyester cotton fabrics for wearable energy harvesting applications

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