Results 41 to 50 of about 57,135 (295)

Soft, comfortable polymer dry electrodes for high quality ECG and EEG recording [PDF]

open access: yes, 2014
Conventional gel electrodes are widely used for biopotential measurements, despite important drawbacks such as skin irritation, long set-up time and uncomfortable removal.
Boon, Paul   +9 more
core   +4 more sources

Thermally Stable Gel Polymer Electrolytes

open access: yesJournal of The Electrochemical Society, 2003
To prepare miscible polyethylene glycol diacrylate/polyvinylidene fluoride (PEGDA/PVdF) blend gel polymer electrolytes, low molecular weight (M = 742) liquid PEGDA oligomer was mixed with PVdF-HFP dissolved in ethylene carbonate/dimethyl carbonate/LiPF 6 liquid electrolytes, and then cured under ultraviolet irradiation. Room temperature conductivity of
Min-Kyu Song   +5 more
openaire   +2 more sources

Polymer Electrolytes for Lithium-Sulfur Batteries: Progress and Challenges

open access: yesBatteries, 2023
The lithium-sulfur battery has garnered significant attention from both researchers and industry due to its exceptional energy density and capacity. However, the conventional liquid electrolyte poses safety concerns due to its low boiling point, hence ...
Mingxun Jia   +6 more
doaj   +1 more source

Preparation of Gel Electrolyte for Lithium Metal Solid-State Batteries and Its Failure Behavior at Different Temperatures

open access: yesGels
The stability of the electrolyte is very important for the development of high-performance all-solid-state lithium batteries. To improve the stability of electrolyte performance, it is essential to first understand the causes of its deterioration ...
Renji Tan   +5 more
doaj   +1 more source

Electrolyte design principles for developing quasi-solid-state rechargeable halide-ion batteries

open access: yesNature Communications, 2023
State-of-the-art electrolytes limit the cycle life of halide-ion batteries. Here, the authors report a fluorinated low-polar gel polymer electrolyte capable of improving the stability of the electrolyte and electrode interphases to boost battery ...
Xu Yang   +10 more
doaj   +1 more source

In-situ measurements of the optical absorption of dioxythiophene-based conjugated polymers

open access: yes, 2011
Conjugated polymers can be reversibly doped by electrochemical means. This doping introduces new sub-bandgap optical absorption bands in the polymer while decreasing the bandgap absorption. To study this behavior, we have prepared an electrochemical cell
Argun, A.   +8 more
core   +1 more source

Membrane-free redox flow battery with polymer electrolytes

open access: yesNature Communications
Li metal-based nonaqueous batteries are valued for high voltage and energy density, but face challenges like Li instability, volatile electrolytes, and costly ion-exchange membranes.
Rajeev K. Gautam   +2 more
doaj   +1 more source

Electrochromic properties of a poly(dithienylfuran) derivative featuring a redox-active dithiin unit [PDF]

open access: yes, 2012
A teraryl monomer containing a 1,4-dithiin-furan central unit has been synthesised and characterised by single crystal X-ray crystallography. The di(thienyl)furan monomer 11 was successfully polymerised electrochemically and shown to possess a lower ...
Berridge, Rory   +7 more
core   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

open access: yesAdvanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin   +7 more
wiley   +1 more source

New Microporous Polymer Electrolyte Based on Polysiloxane Grafted with Imidazolium Iodide Moieties for DSSC

open access: yesInternational Journal of Photoenergy, 2011
Two types of polysiloxane grafted with different ratio of imidazolium iodide moieties (IL-SiO2) have been synthesized to develop a micro-porous polymer electrolyte for quasi-solid-state dye-sensitized solar cells. The samples were characterized by 1HNMR,
Yan Yang, Jie Tao, Xin Jin, Qi Qin
doaj   +1 more source

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