Results 61 to 70 of about 57,135 (295)

Graphene based sulfonated polyvinyl alcohol hydrogel nanocomposite for flexible supercapacitors

Journal of Electrochemical Science and Engineering, 2021
Graphene based sulfonated polyvinyl alcohol (PVA) hydrogel was synthesized and its performance as nanocomposite gel polymer electrolyte was investigated for application in quasi solid-state flexible supercapacitors.
Subhakaran Singh Rajaputra, Nagalakshmi Pennada, Anjaneyulu Yerramilli, Naga Mahesh Kummara   +3 more
doaj   +1 more source

Optimization of salt concentration and Explanation of Two Peak Percolation in Blend Solid Polymer Nanocomposite Films

, 2018
The present paper report is focused toward the preparation of the flexible and freestanding blend solid polymer electrolyte films based on PEO-PVP complexed with NaPF6 by solution cast technique.
Arya, Anil, Sharma*, A. L.
core   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

Regiorandom Polythiophenes for Fully Stretchable Electrochemical Transistors and Logic Circuits

Advanced Functional Materials, EarlyView.
Regiorandom (RRa) polythiophenes, once regarded as unsuitable for electronics, exhibit exceptional switching performance via volumetric electrochemical doping. Optimized RRa‐based organic electrochemical transistors (OECTs) achieve a high on/off ratio (≈104), stable operation under 200% strain, and enable fully stretchable logic gates, demonstrating ...
Dong Hyun Park, Min Su Kim, Kyu Yeon Kim, Jae Hyun Han, Moon Sung Kang, Kyung Gook Cho, Keun Hyung Lee   +6 more
wiley   +1 more source

High power density electrodes for Carbon supercapacitor applications [PDF]

, 2005
This paper presents results obtained with 4 cm2 Carbon/Carbon supercapacitors cells in organic electrolyte. In the first approach, a surface treatment for Al current collector foil via the sol–gel route has been used in order to decrease the Al/active ...
Flahaut, Emmanuel, Laberty-Robert, Christel, Portet, Cristelle, Simon, Patrice, Taberna, Pierre-Louis   +4 more
core   +2 more sources

Electrolyte Design Strategies for Static Shuttle‐Free and Long‐Life Aqueous Zinc‐Iodine Batteries

Advanced Functional Materials, EarlyView.
This review systematically summarizes recent advances in electrolyte design for static aqueous Zn‐I2 batteries, highlighting solvation regulation and interfacial engineering strategies to control reaction kinetics, suppress iodine shuttling, enhance energy density, and stabilize multi‐electron iodine redox chemistry for durable, high‐performance energy
Qianqin Zhou, Fan Zhang, Ting Liao, Ziqi Sun   +3 more
wiley   +1 more source

Excellent dispersibility of single-walled carbon nanotubes in highly concentrated electrolytes and application to gel electrode for Li-S batteries

Electrochemistry Communications, 2019
The high dispersibility of single-walled carbon nanotubes (SWCNTs) in supporting media is a challenge for maximizing the mechanical and electrical properties of SWCNT-based composite materials. Herein, we demonstrate that highly concentrated lithium-salt
Ryota Tamate, Aya Saruwatari, Azusa Nakanishi, Yoshiharu Matsumae, Kazuhide Ueno, Kaoru Dokko, Masayoshi Watanabe   +6 more
doaj   +1 more source

Printing of wirelessly rechargeable solid-state supercapacitors for soft, smart contact lenses with continuous operations [PDF]

, 2019
Recent advances in smart contact lenses are essential to the realization of medical applications and vision imaging for augmented reality through wireless communication systems.
Ahn, David B., Bae, Byeong-Soo, Cha, Eunkyung, Kim, Joohee, Lee, Sang-Young, Park, Jang-Ung, Park, Jihun   +6 more
core   +2 more sources

Advanced Gel Polymer Electrolyte for Lithium-Ion Polymer Batteries

ASME 2013 7th International Conference on Energy Sustainability, 2013
We report improved performance of Li-ion polymer batteries through advanced gel polymer electrolytes (GPEs). Compared to solid and liquid electrolytes, GPEs are advantageous as they can be fabricated in different shapes and geometries; also ionic properties are significantly superior to that of solid and liquid electrolytes.
Ruisi Zhang, Niloofar Hashemi, Maziar Ashuri, Reza Montazami   +3 more
openaire   +2 more sources

Enhanced Li‐Ion Battery Performance with Hybrid MXene/GnR Electrodes: Heterojunctions and Engineered Architectures Supported by DFT Mechanistic Studies for Improved Rate Performance, Stability & Capacity

Advanced Functional Materials, EarlyView.
Lithium‐ion batteries (LIBs) remain central to energy storage but suffer from slow ion transport and degradation. Here, we present a binder‐free Ti3C2Tx MXene/GnR hybrid electrode with a porous 3D architecture formed via freeze casting. The structure enhances conductivity, ion transport, and stability, delivering 401 mAh/g, ∼97% efficiency, and 92 ...
Sara Mohseni Taromsari, Meysam Salari, Dipali Nayak, Saeed Habibpour, Ling Wei Hwang, Cristopher Carreiro, Carlos M. Da Silva, Aiping Yu, Chul B. Park, Cristina H. Amon, Hani E. Naguib   +10 more
wiley   +1 more source