Journal ArticleDOI
Polypyrrole-coated paper for flexible solid-state energy storage
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TLDR
In this paper, high conductive paper was fabricated through polypyrrole (PPy) coating on common printing paper by a simple and low-cost "soak and polymerization" method.Abstract:
Highly conductive paper was fabricated through polypyrrole (PPy) coating on common printing paper by a simple and low-cost “soak and polymerization” method. The as-fabricated porous, flexible and conductive paper shows a high electrical conductivity of 15 S cm−1 and a low sheet resistance of 4.5 Ω sq−1. Flexible solid-state supercapacitors assembled with PPy/paper composite electrodes had an average weight of 55 mg and an areal capacitance of 0.42 F cm−2, indicating a high energy density of 1 mW h cm−3 at a power density of 0.27 W cm−3 normalized to the volume of the whole cell (electrode, electrolyte, and separator). Furthermore, this method could be easily scaled up to large-scale fabrication of conductive paper and opened up new opportunities for flexible energy storage.read more
Citations
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A review of electrolyte materials and compositions for electrochemical supercapacitors
TL;DR: The principles and methods of designing and optimizing electrolytes for ES performance and application are highlighted through a comprehensive analysis of the literature, and challenges in producing high-performing electrolytes are analyzed.
Journal ArticleDOI
Towards flexible solid-state supercapacitors for smart and wearable electronics
TL;DR: The state-of-the-art advancements in FSSCs are reviewed to provide new insights on mechanisms, emerging electrode materials, flexible gel electrolytes and novel cell designs.
Journal ArticleDOI
Flexible Energy-Storage Devices: Design Consideration and Recent Progress
TL;DR: This review describes the most recent advances in flexible energy-storage devices, including flexible lithium-ion batteries and flexible supercapacitors, based on carbon materials and a number of composites and flexible micro-supercapacitor.
Journal ArticleDOI
Flexible solid-state supercapacitors based on three-dimensional graphene hydrogel films.
TL;DR: The exploration of a three-dimensional (3D) graphene hydrogel for the fabrication of high-performance solid-state flexible supercapacitors demonstrates the exciting potential of 3D graphene macrostructures for high- performance flexible energy storage devices.
Journal ArticleDOI
Low-Cost High-Performance Solid-State Asymmetric Supercapacitors Based on MnO2 Nanowires and Fe2O3 Nanotubes
Peihua Yang,Yong Ding,Ziyin Lin,Zhongwei Chen,Yuzhi Li,Pengfei Qiang,Masood Ebrahimi,Wenjie Mai,Wenjie Mai,Ching-Ping Wong,Zhong Lin Wang,Zhong Lin Wang +11 more
TL;DR: A low-cost high-performance solid-state flexible asymmetric supercapacitor with α-MnO2 nanowires and amorphous Fe2O3 nanotubes grown on flexible carbon fabric is first designed and fabricated.
References
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Journal ArticleDOI
Materials for electrochemical capacitors
TL;DR: This work has shown that combination of pseudo-capacitive nanomaterials, including oxides, nitrides and polymers, with the latest generation of nanostructured lithium electrodes has brought the energy density of electrochemical capacitors closer to that of batteries.
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Laser Scribing of High-Performance and Flexible Graphene-Based Electrochemical Capacitors
TL;DR: It is shown that graphite oxide sheets can be converted by infrared laser irradiation into porous graphene sheets that are flexible, robust, and highly conductive, and hold promise for high-power, flexible electronics.
Journal ArticleDOI
Ultrahigh-power micrometre-sized supercapacitors based on onion-like carbon
David Pech,Magali Brunet,Hugo Durou,Peihua Huang,Vadym Mochalin,Yury Gogotsi,Pierre-Louis Taberna,Patrice Simon +7 more
TL;DR: This work demonstrates microsupercapacitors with powers per volume that are comparable to electrolytic capacitors, capacitances that are four orders of magnitude higher, and energies per volume higher than conventional supercapacitor.
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Supercapacitor devices based on graphene materials
TL;DR: In this paper, a supercapacitor with a maximum specific capacitance of 205 F/g with a measured power density of 10 kW/kg at energy density of 28.5 Wh/kg in an aqueous electrolyte solution has been obtained.
Journal ArticleDOI
Microfibre–nanowire hybrid structure for energy scavenging
TL;DR: This work establishes a methodology for scavenging light-wind energy and body-movement energy using fabrics and presents a simple, low-cost approach that converts low-frequency vibration/friction energy into electricity using piezoelectric zinc oxide nanowires grown radially around textile fibres.