Printed supercapacitors: materials, printing and applications

2019 ◽  
Vol 48 (12) ◽  
pp. 3229-3264 ◽  
Author(s):  
Yi-Zhou Zhang ◽  
Yang Wang ◽  
Tao Cheng ◽  
Lan-Qian Yao ◽  
Xiangchun Li ◽  
...  
Keyword(s):  
Energy Storage ◽  
Flexible Electronics ◽  
Energy Storage Devices ◽  
Storage Devices

This review summarizes how printing methods can revolutionize the manufacturing of supercapacitors – promising energy storage devices for flexible electronics.

scholarly journals Dielectric Properties of Graphene/Titania/Polyvinylidene Fluoride (G/TiO2/PVDF) Nanocomposites

Materials ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 205 ◽  
Author(s):  
Saira Ishaq ◽  
Farah Kanwal ◽  
Shahid Atiq ◽  
Mahmoud Moussa ◽  
Umar Azhar ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Flexible Electronics ◽  
Polyvinylidene Fluoride ◽  
Dielectric Material ◽  
Gravimetric Analysis ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Anatase Titania ◽  
Prepared Material

Flexible electronics have gained eminent importance in recent years due to their high mechanical strength and resistance to environmental conditions, along with their effective energy storage and energy generating abilities. In this work, graphene/ceramic/polymer based flexible dielectric nanocomposites have been prepared and their dielectric properties were characterized. The composite was formulated by combining graphene with rutile and anatase titania, and polyvinylidene fluoride in different weight ratios to achieve optimized dielectric properties and flexibility. After preparation, composites were characterized for their morphologies, structures, functional groups, thermal stability and dielectric characterizations by using scanning electron microscopy, X-ray diffraction, Raman spectroscopy, Fourier transform infrared spectroscopy, thermal gravimetric analysis and impedance spectroscopy. Dielectric results showed that prepared flexible composite exhibited dielectric constant of 70.4 with minor leakage current (tanδ) i.e., 0.39 at 100 Hz. These results were further confirmed by calculating alternating current (AC) conductivity and electric modulus which ensured that prepared material is efficient dielectric material which may be employed in electronic industry for development of next generation flexible energy storage devices.

Design of multifunctional supercapacitor electrodes using an informatics approach

2019 ◽  
Vol 4 (3) ◽  
pp. 654-663 ◽  
Author(s):  
Anish G. Patel ◽  
Luke Johnson ◽  
Raymundo Arroyave ◽  
Jodie L. Lutkenhaus
Keyword(s):  
Energy Storage ◽  
Flexible Electronics ◽  
Public Safety ◽  
Energy Storage Devices ◽  
Storage Devices

Multifunctional energy storage devices can greatly impact public safety and flexible electronics.

Progress in development of flexible metal–air batteries

2016 ◽  
Vol 09 (02) ◽  
pp. 1630001 ◽  
Author(s):  
Afriyanti Sumboja ◽  
Xiaoming Ge ◽  
Yun Zong ◽  
Zhaolin Liu
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Flexible Electronics ◽  
Alternative Energy ◽  
Cost Effective ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Flexible Metal

Flexible electronics has gained great interest in emerging wearable or rolling-up gadgets, such as foldable displays, electronic papers, and other personal multimedia devices. Subsequently, there is a need to develop energy storage devices that are pliable, inexpensive, and lightweight. Metal–air batteries have been identified as one of alternative energy storages for cost effective and high energy density applications. They offer cheaper production cost and higher energy density than most of the currently available battery technologies. Thus, they are promising candidates for flexible energy storage devices. Flexible metal–air batteries have to maintain their performances during various mechanical deformations. To date, efforts have been focused on fabricating flexible components for metal–air batteries. This review presents a brief introduction to the field, followed by progress on development of flexible electrolytes, electrodes, and prototype devices. Challenges and outlook towards the practical use of metal–air batteries are given in the last part.

An aqueous hybrid electrolyte for low-temperature zinc-based energy storage devices

2020 ◽  
Vol 13 (10) ◽  
pp. 3527-3535 ◽  
Author(s):  
Nana Chang ◽  
Tianyu Li ◽  
Rui Li ◽  
Shengnan Wang ◽  
Yanbin Yin ◽  
...  
Keyword(s):  
Energy Storage ◽  
Low Temperature ◽  
Energy Storage Devices ◽  
Storage Devices

A frigostable aqueous hybrid electrolyte enabled by the solvation interaction of Zn2+–EG is proposed for low-temperature zinc-based energy storage devices.

Ultrathin Carbon Nanosheets for Highly-efficient Capacitive K-ion and Zn-ion Storage

2020 ◽  
Author(s):  
Yamin Zhang ◽  
Zhongpu Wang ◽  
Deping Li ◽  
Qing Sun ◽  
Kangrong Lai ◽  
...  
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
Metal Ion ◽  
Rate Capability ◽  
Energy Storage Devices ◽  
Capacity Retention ◽  
Carbon Nanosheets ◽  
Storage Devices ◽  
High Efficient ◽  
Ion Storage

<p></p><p>Porous carbon has attracted extensive attentions as the electrode material for various energy storage devices considering its advantages like high theoretical capacitance/capacity, high conductivity, low cost and earth abundant inherence. However, there still exists some disadvantages limiting its further applications, such as the tedious fabrication process, limited metal-ion transport kinetics and undesired structure deformation at harsh electrochemical conditions. Herein, we report a facile strategy, with calcium gluconate firstly reported as the carbon source, to fabricate ultrathin porous carbon nanosheets. <a>The as-prepared Ca-900 electrode delivers excellent K-ion storage performance including high reversible capacity (430.7 mAh g<sup>-1</sup>), superior rate capability (154.8 mAh g<sup>-1</sup> at an ultrahigh current density of 5.0 A g<sup>-1</sup>) and ultra-stable long-term cycling stability (a high capacity retention ratio of ~81.2% after 4000 cycles at 1.0 A g<sup>-1</sup>). </a>Similarly, when being applied in Zn-ion capacitors, the Ca-900 electrode also exhibits an ultra-stable cycling performance with ~90.9% capacity retention after 4000 cycles at 1.0 A g<sup>-1</sup>, illuminating the applicable potentials. Moreover, the origin of the fast and smooth metal-ion storage is also revealed by carefully designed consecutive CV measurements. Overall, considering the facile preparation strategy, unique structure, application flexibility and in-depth mechanism investigations, this work will deepen the fundamental understandings and boost the commercialization of high-efficient energy storage devices like potassium-ion/sodium-ion batteries, zinc-ion batteries/capacitors and aluminum-ion batteries.</p><br><p></p>

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