Performance-tuning of PVA-based gel electrolytes by acid/PVA ratio and PVA molecular weight

Alipoori, Saeideh; Torkzadeh, Mehrangiz; Mazinani, Saeedeh; Aboutalebi, Seyed Hamed; Sharif, Farhad

doi:10.1007/s42452-021-04182-7

Cited by 28 publications

(35 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, encapsulating the cells is needed to maintain the cell's performance and possibly extend the lifetime of the cells in practical usage. [49][50][51][52] Regardless, our obtained data confirmed the stretching and washing sustainability of our composites as the supercapacitor electrode material. Finally, further research on washable electrolytes would be useful in realizing practical applications of washable supercapacitor applications.…”

Section: Discussionsupporting

confidence: 80%

Improvement of Stretchable and Washable Carbon‐Nanotube‐Based Textile Supercapacitors by using Molybdenum Trioxide Nanoflakes and Prewashing Treatment

Duy

Sial

Seo

2021

Adv Materials Technologies

View full text Add to dashboard Cite

generators) have unveiled their enormous potential in the growth of wearable applications for healthcare, communication, fashion technology, energy harvest, and so on. [1][2][3][4][5][6][7] That has received great attention from the scientific and engineering community to develop electronic textiles (e-textiles) and wearable electronics in recent years. However, there are many general challenges for the commercialization and further growth of wearable electronics. [8][9][10] The major weakness of portable wearable electronic systems is the lack of stretchable and high-performance energy storage that is required to ensure the sustainable operation of the systems while mounted on moving surfaces (of humans and other beings). Here, conventional energy storage devices failed to address the usability in this wearable field due to their rigid and bulky nature. Besides, given hygiene issues, washability is one of the most desired features for the wearable electronic systems incorporated directly into fabrics. [11][12][13][14][15][16] Therefore, there exists a strong need for the development of reliable wearable energy devices which carry not only satisfactory energy storage and power delivery capabilities but also other robust features, such as stretchability and even washability, for integration with e-textiles.It is not denied that among the various energy storage devices, supercapacitors are gaining attraction for wearable electronics, mainly because of their salient properties such as excellent lifetime, fast charging/discharging rate, high power density, and lightweight for integration into portable electronic systems. [16][17][18][19][20] In recent years, research efforts have been devoted to the innovation of existing active materials, the design of new ones for wearable supercapacitors, and the establishment or enhancement of their merits by multifunctionalities, which can be adaptive to various purposes of uses in practice or commercialization. [21,22] Due to the versatile operation ability under multiple mechanical deformations (e.g., stretching, bending/ folding, and twisting), the stretchable platforms of supercapacitors have received further attention. [23][24][25][26][27][28] However, that has yet reached the ultimate goals for wearable energy devices in realworld applications, which demand not only stretchability but also more functionalities. [21,22,29] Thus, the development and innovation of textile-based supercapacitors, having stretchabilityThe attraction of electronic textiles for next-generation wearable electronic devices has raised the demands of washable and stretchable energy storage. However, negative effects of washing on the textile-based devices are majorly known. In this work, besides the innovation of a conventional stretchable composite based on carbon nanotubes (CNT) and polydimethylsiloxane (PDMS) for textile-based supercapacitors, findings regarding negative and positive effects of washing are introduced. Since the CNT-and-PDMS-based composite (CNT+PDMS) owns high stretchability but lo...

show abstract

Section: Discussionsupporting

confidence: 80%

Improvement of Stretchable and Washable Carbon‐Nanotube‐Based Textile Supercapacitors by using Molybdenum Trioxide Nanoflakes and Prewashing Treatment

Duy

Sial

Seo

2021

Adv Materials Technologies

View full text Add to dashboard Cite

show abstract

“…Before being used, the prepared electrolyte was cooled down to room temperature. The ionic conductivity of the gel electrolyte is estimated to be 0.14 S cm -1 at a viscosity of 0.6×10 5 Pa s. [71,72] The supercapacitor was manufactured in a symmetric configuration, i.e., with two identical electrodes. Prior to assembly, the MPNCelectrodes were immersed into the as-prepared electrolyte for at least 15 min to ensure its infiltration into the pores of the 3D electrode and each MPNC particle.…”

Section: Methodsmentioning

confidence: 99%

“…Before being used, the prepared electrolyte was cooled down to room temperature. The ionic conductivity of the gel electrolyte is estimated to be 0.14 S cm –1 at a viscosity of 0.6×10 5 Pa s. [ 71,72 ]…”

Section: Methodsmentioning

confidence: 99%

A Monolithic Silicon‐Mesoporous Carbon Photosupercapacitor with High Overall Photoconversion Efficiency

Berestok

Diestel

Ortlieb

et al. 2022

Adv Materials Technologies

View full text Add to dashboard Cite

Off‐grid devices require autonomous power supply systems that can be achieved via coupling a solar cell with a supercapacitor in one integrated multifunctional device that is able to harvest energy from the environment, store, and release it on demand. Herein, a straight‐forward approach is proposed to realize a monolithic photosupercapacitor rechargeable under illumination by integrating a silicon (Si) solar cell with an electrochemical double‐layer capacitor (EDLC) based on mesoporous N‐doped carbon nanospheres (MPNC) in a three‐electrode configuration, i.e., via a shared electrode. The optimized porous structure of the MPNC‐EDLC electrodes results in a high storage efficiency of 95% and a superior performance compared to an activated carbon based EDLC. When monolithically integrated with a highly compatible and technologically robust Si solar cell in a photosupercapacitor, fast charging up to 0.63 V (2.5 V for a module of four photosupercapacitors connected in series) in less than 5 s is attained even under weak illumination conditions, with an outstanding peak overall efficiency of 11.8%. These results show high potential toward the development of photorechargeable and decentralized power sources for deployed smart electronic devices.

show abstract

“…For PVA/H 3 PO 4 hydrogels with identical PVA fractions, high-molecular-weight (1 95 000) PVA afforded lower conductivity than low-molecular-weight (27 000) PVA. 8 The decreased conductivity was attributed to lower segmental motion of the high-molecular-weight PVA chains, which hindered the diffusion of ions in the hydrogel. In comparison, the polymer fraction had a more profound impact on the conductivity of acid hydrogels.…”

Section: Introductionmentioning

confidence: 99%

Effect of polyacrylamide morphology templated using lyotropic liquid crystal on the proton conductivity of acid hydrogels

Jia

Tan

et al. 2023

Soft Matter

View full text Add to dashboard Cite

show abstract

Performance-tuning of PVA-based gel electrolytes by acid/PVA ratio and PVA molecular weight

Cited by 28 publications

References 52 publications

Improvement of Stretchable and Washable Carbon‐Nanotube‐Based Textile Supercapacitors by using Molybdenum Trioxide Nanoflakes and Prewashing Treatment

Improvement of Stretchable and Washable Carbon‐Nanotube‐Based Textile Supercapacitors by using Molybdenum Trioxide Nanoflakes and Prewashing Treatment

A Monolithic Silicon‐Mesoporous Carbon Photosupercapacitor with High Overall Photoconversion Efficiency

Effect of polyacrylamide morphology templated using lyotropic liquid crystal on the proton conductivity of acid hydrogels

Contact Info

Product

Resources

About