Results 31 to 40 of about 19,381 (288)

Hydrogel-polymer electrolytes for electrochemical capacitors: an overview [PDF]

Energy Environ. Sci., 2009
Electrochemical capacitors are electrochemical devices with fast and highly reversible charge-storage and discharge capabilities. The devices are attractive for energy storage particularly in applications involving high-power requirements. Electrochemical capacitors employ two electrodes and an aqueous or a non-aqueous electrolyte, either in liquid or ...
Choudhury, NA., Sampath, S., Shukla, A.K.   +2 more
openaire   +1 more source

Stretchable supercapacitor based on a hierarchical PPy/CNT electrode and hybrid hydrogel electrolyte with a wide operating temperature

Carbon Energy, 2022
Hydrogel is frequently used as a solid electrolyte for all solid‐state supercapacitors (SCs) because of its liquid‐like ion‐transport property and high conformability.
Yanfang Ren, Yunlong Liu, Siying Wang, Qian Wang, Shuhong Li, Wenjun Wang, Xiaochen Dong   +6 more
doaj   +1 more source

Natural Solid-State Hydrogel Electrolytes Based on 3D Pure Cotton/Graphene for Supercapacitor Application

Micromachines, 2023
A conductive cotton hydrogel with graphene and ions can come into contact with electrodes in solid electrolytes at the molecular level, leading to a more efficient electrochemical process in supercapacitors.
Nujud Badawi Mohammed, Khalid Mujasam Batoo, Sajjad Hussain, Ramesh Subramaniam, Ramesh Kasi, Mrutunjaya Bhuyan, Ahamad Imran, Muthumareeswaran Muthuramamoorthy   +7 more
doaj   +1 more source

Classification of analytics, sensorics, and bioanalytics with polyelectrolyte multilayer capsules [PDF]

, 2020
Polyelectrolyte multilayer (PEM) capsules, constructed by LbL (layer-by-layer)-adsorbing polymers on sacrificial templates, have become important carriers due to multifunctionality of materials adsorbed on their surface or encapsulated into their ...
Krysko, Dmitri, Li, Jie, Parakhonskiy, Bogdan, Skirtach, Andre, Van der Meeren, Louis   +4 more
core   +1 more source

Electrical and Capacitive Response of Hydrogel Solid-Like Electrolytes for Supercapacitors [PDF]

Polymers, 2021
Flexible hydrogels are attracting significant interest as solid-like electrolytes for energy storage devices, especially for supercapacitors, because of their lightweight and anti-deformation features. Here, we present a comparative study of four ionic conductive hydrogels derived from biopolymers and doped with 0.1 M NaCl.
Ruano Torres, Guillem, Iribarren Laco, José Ignacio, Pérez Madrigal, Maria del Mar, Torras Costa, Juan, Alemán Llansó, Carlos   +4 more
openaire   +4 more sources

Transport of non-associated electrolytes in acrylamide hydrogels [PDF]

Journal of Molecular Liquids, 2001
Abstract Diffusion of non-associated electrolytes (LiCl and KCl) in different hydrogels has been studied to identify the mechanism of electrolyte interaction with the structure of hydrogels and its dependence on electrolyte concentration and thermodynamic features of the electrolyte. Hydrogel membranes have been prepared from acrylamide (AAm) using N,
Lobo, Victor, Valente, Artur José Monteiro, Polishchuk, Alexandre Ya, Geuskens, Georges   +3 more
openaire   +2 more sources

Hydrogel‐Based Flexible Energy Storage Using Electrodes Based on Polypyrrole and Carbon Threads

Advanced Materials Interfaces, 2023
Developing new flexible and electroactive materials is a significant challenge to producing safe, reliable, and environmentally friendly energy storage devices. This study introduces a promising electrolyte system that fulfills these requirements. First,
Jean G. A. Ruthes, Andrei E. Deller, Emmanuel Pameté, Izabel C. Riegel‐Vidotti, Volker Presser, Marcio Vidotti   +5 more
doaj   +1 more source

Gelled Electrolyte for Nanostructured Lead-acid Battery

Chemical Engineering Transactions, 2019
In recent years, the storage of energy produced by renewable sources has become a topic of great interest. Lead-acid batteries are widely used in this field, in particular those based on VRLA (Valve-Regulated-Lead Acid) technology, in which the ...
Maria Grazia Insinga, Andrea Derelitto, Simone Pisana, Roberto Luigi Oliveri, Carmelo Sunseri, Rosalinda Inguanta   +5 more
doaj   +1 more source

The Preparation of Electrolyte Hydrogels with the Water Solubilization of Polybenzoxazine

Gels, 2023
Polybenzoxazine (PBZ) exhibits excellent heat resistance, and PBZ derivatives have been designed and synthesized to achieve high performance. However, the application range of PBZ is limited by the strong interactions between molecular chains and its low
Yutaka Ohsedo, Ami Kaneizumi
doaj   +1 more source

Cross-Linked Polymer Hydrogel Electrolytes for Electrochemical Capacitors [PDF]

Journal of The Electrochemical Society, 2006
Acidic polyvinyl alcohol/polyacrylic acid blend hydrogel electrolytes (BHEs) were prepared by cross-linking with glutaraldehyde and perchloric acid. These acidic BHEs were treated suitably to realize alkaline and neutral BHEs. Amorphicity of BHEs was followed by differential scanning calorimetry.
Choudhury, N.A., Shukla, A.K., Sampath, S., Pitchumani, S.   +3 more
openaire   +1 more source