Results 101 to 110 of about 50,481 (293)

Ru‐Doping‐Engineered Oxygen Vacancies in MoO3‐x Nanostructured Films With Ultrahigh Capacitance for Flexible Asymmetric Supercapacitors

open access: yesAdvanced Science, EarlyView.
Ru‐doping‐induced defect engineering enables freestanding Ru–MoO3‐x flexible films with enriched oxygen vacancies, modulated band structure, and enhanced charge transport. The optimized electrode delivers ultrahigh capacitance approaching the theoretical limit of MoO3, while assembled asymmetric supercapacitors exhibit high energy density, wide‐voltage
Xiaoqing Bin   +8 more
wiley   +1 more source

Flexible Supercapacitors: A Materials Perspective

open access: yesFrontiers in Materials, 2019
Flexible supercapacitors are highly attractive for the large number of emerging portable lightweight consumer devices. The novelty of a flexible supercapacitor is the incorporation of flexible electrode or substrate material to combine structural ...
Soubantika Palchoudhury   +3 more
doaj   +1 more source

Measurement of Noise in Supercapacitors [PDF]

open access: yes, 2017
A developed method and measurement setup for measurement of noise generated in a supercapacitor is presented. The requirements for noise data recording are considered and correlated with working modes of supercapacitors.
Szewczyk Arkadiusz   +2 more
core   +1 more source

Supercapacitor Safety: Overcharge‐Induced Failure Mechanisms in Electrochemical Double‐Layer Capacitors

open access: yesAdvanced Science, EarlyView.
Time‐resolved synchrotron radiography reveals the internal evolution of electrochemical double‐layer capacitors under abusive overcharge. EDLCs are shown to follow a thermally driven failure pathway involving electrolyte decomposition, gas generation, and structural collapse, distinct from chemically driven thermal runaway effects of Lithium‐ion ...
Thomas Dore   +19 more
wiley   +1 more source

Transforming biomass into engineered biochar materials for high-performance supercapacitors: Recent advances, challenges, and prospects

open access: yes能源环境保护
Supercapacitors are widely considered as advanced energy storage devices with vast development prospects due to their excellent properties, including high specific energy and good cyclic stability.
Ruibo FAN   +6 more
doaj   +1 more source

Expanding Genetic Code to Generate Human Brain Organoids with Both Vasculature and Microglia‐Like Cells

open access: yesAdvanced Science, EarlyView.
Using genetic code expansion, we engineered vascularized human cerebral organoids (vhCOs) with microglia‐like cells and blood‐brain barrier features. vhCOs recapitulate neurovascular interactions, regional identities, and neuronal subtypes resembling the fetal brain.
Haishuang Lin   +7 more
wiley   +1 more source

Methods of Assessing Degradation of Supercapacitors by Using Various Measurement Techniques

open access: yesApplied Sciences, 2019
This article presents the qualitative analyses of the construction of supercapacitor samples. The analyses are based on the suggested thermographic measurements as well as the technique of testing the inherent noise of the investigated element.
Stanislaw Galla   +3 more
doaj   +1 more source

Self‐Sustaining Sensing Systems: Integration Strategies and Signal–Power Matching in Energy‐Harvesting Electronics

open access: yesAdvanced Science, EarlyView.
Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park   +5 more
wiley   +1 more source

Efficiency Considerations for the Fast Charge of Supercapacitors in the Frame of Low Voltage Applications [PDF]

open access: yes
Even if supercapacitors present a reduced energy density, they allow to store a significant amount of energy which leads to a significant autonomy for applications with reduced energy needs.
Delalay, S., Rufer, A., Barrade, P.
core  

Hollow Carbon Nanorod-Encapsulated Eu2O3 for High-Energy Hybrid Supercapacitors

open access: yes
Carbon nanorods have been synthesized from acetylene and steam using europium oxide nanorods as a template. The resulting carbon exhibits a high conductivity of 4.66 × 105 S/m and a surface area of 1226 m2/g.
Arslan Umer   +4 more
core   +1 more source

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