a hybrid battery and a supercapacitor, which is a rapidly charging and discharging device capable of storing huge amounts of electrical charge.
Snapshots of the retarded interaction of charge carriers with ultrafast fluctuations in cuprates News and information High performance, lightweight supercapacitor electrodes of the future March 10th, 2015advantest to Exhibit at SEMICON China
Understanding why a material's behavior changes as it gets smaller March 10th, 2015announcements High performance, lightweight supercapacitor electrodes of the future March 10th, 2015advantest to Exhibit at SEMICON China in Shanghai, China, March 17-19:
2015the chameleon reorganizes its nanocrystals to change colors March 10th, 2015high performance, lightweight supercapacitor electrodes of the future March 10th,
News and information High performance, lightweight supercapacitor electrodes of the future March 10th, 2015advantest to Exhibit at SEMICON China in Shanghai, China, March 17-19:
Understanding why a material's behavior changes as it gets smaller March 10th, 2015announcements High performance, lightweight supercapacitor electrodes of the future March 10th, 2015advantest to Exhibit at SEMICON China in Shanghai, China, March 17-19:
2015the chameleon reorganizes its nanocrystals to change colors March 10th, 2015high performance, lightweight supercapacitor electrodes of the future March 10th,
#High performance, lightweight supercapacitor electrodes of the future Abstract: Researchers have developed a novel electrode to make low-cost, lightweight supercapacitors with superior performance,
a development that could mean faster charging time and longer battery life in electric vehicles and portable electronics.
As a novel energy storage device, supercapacitors have attracted substantial attention in recent years due to their ultra-high charge
which are both part of the promising future that supercapacitors could offer. Offsetting this promise is the fact that
while supercapacitors have the potential to charge faster and last longer than conventional batteries, they also need to be much larger in size
Thus, many scientists are working to develop green, lightweight, low-cost supercapacitors with high performance. Now two researchers from the S n. Bose National Centre for Basic Sciences, India, have developed a novel supercapacitor electrode based on a hybrid nanostructure made from a hybrid nickel oxide-iron oxide
exterior shell and a conductive iron-nickel core. In a paper published this week in the Journal of Applied Physics
They also demonstrate its superior performance compared to existing, non-hybrid supercapacitor electrodes. Since nickel oxide and iron oxide are environmental friendly and cheap materials that are widely available in nature,
the novel electrode promises green and low-cost supercapacitors in future.""This hybrid electrode shows the superior electrochemical performance in terms of high capacitance the ability to store electrical charge of nearly 1415 farad per gram, high current density of 2. 5 ampere per gram,
"The Promise of Supercapacitors Supercapacitors are used electronic devices to store an extremely large amount of electrical charges.
Supercapacitors are a bridge between conventional capacitors and batteries, combining the advantageous properties of high power, high energy density and low internal resistance,
In supercapacitors, high capacitance, or the ability to store an electrical charge, is critical to achieve higher energy density.
one can manipulate the performance and quality of the supercapacitors, "Singh said. In Singh's experiment, the core/shell hybrid nanostructure was fabricated through a two-step method.
He explained that supercapacitors store charges through a chemical process known as a redox reaction, which involves a material giving up electrons
Larger redox reaction surfaces are essential for achieving a higher power density for supercapacitors.""Moreover, the conductive Fe-Ni core provides a highway to accelerate the transport of electrons to the current collector,
and electrochemical properties of the electrode, realizing high-performance supercapacitors,"Singh noted. How the New Electrode Performed Using techniques called cyclic voltammetry
or graphene based supercapacitors for attaching redox active material on the current collector. Without the mass of binding materials, the hybrid electrode is a good candidate to make lightweight supercapacitors."
"The remarkable electrochemical performances and material properties suggest that the iron oxide-nickel oxide hybrid core/shell nanostructure could be a reliable and promising candidate for fabricating the next generation lightweight, low-cost
and green supercapacitor electrodes for real life application, "Singh said. The researchers'next plan is to develop a whole supercapacitor device based on the hybrid electrode and test its functional performance,
a step closer to manufacturing production n
#Nanotechnology Helps Increasing Rate of Digital data Processing, Storage Iranian researchers proposed a new method based on nanotechnology to increase the rate of digital data processing and storage.
2015new micro-supercapacitor structure inspired by the intricate design of leaves: A team of scientists in Korea has devised a new method for making a graphene film for supercapacitors July 2nd,
2015graphene Super graphene helps boost chemotherapy treatment: Replacing silver coating on catheters with graphene increases treatment effect July 9th, 2015industrial Scale Production of Functionalised Graphitic Carbon nanomaterials July 9th, 2015bbc World Service to broadcast
"Self-assembled three-dimensional and compressible interdigitated thin-film supercapacitors and batteries")."This is a closeup of the soft battery,
#New technique for'seeing'ions at work in a supercapacitor Researchers from the University of Cambridge, together with French collaborators based in Toulouse,
have developed a new method to see inside battery-like devices known as supercapacitors at the atomic level.
the researchers were able to visualise how ions move around in a supercapacitor. They found that
Supercapacitors are used in applications where quick charging and power delivery are important, such as regenerative braking in trains and buses, elevators and cranes.
a supercapacitor is useful when a short burst of power is required, such as when overtaking another car, with the battery providing the steady power for highway driving. upercapacitors perform a similar function to batteries
A supercapacitor is similar to a battery in that it can generate and store electric current, but unlike a battery, the storage and release of energy does not involve chemical reactions:
instead, positive and negative electrolyte ions simply tickto the surfaces of the electrodes when the supercapacitor is being charged.
When a supercapacitor is being discharged to power a device, the ions can easily opoff the surface
The reason why supercapacitors charge and discharge so much faster is that the tickingand oppingprocesses happen much faster than the chemical reactions at work in a battery. o increase the area for ions to stick to,
In the new study, the researchers used NMR to look inside functioning supercapacitor devices to see how they charge and store energy.
what happens inside a supercapacitor while it charges. n a battery, the two electrodes are different materials,
Griffin. n a supercapacitor, the two electrodes are made of the same porous carbon sponge, so you think the same process would take place at both
and the positive ions are attracted to the surface as the supercapacitor charges. But in the positive electrode, an ion xchangehappens,
such as batteries and supercapacitors, has been figuring out how to increase the surface area of the device, to store more charge,
wafer-thin supercapacitor material. he real challenge was how to assemble these three components into a single structure with the best use of the space available,
with increased performance has great potential to be scaled up for use supercapacitor and battery technology. Our next step is to use this material to fabricate flexible wearable supercapacitors with high power density and energy density as well as large scale supercapacitors for electric vehicles. u
#Smart hydrogel coating creates'stick-slip'control of capillary action Coating the inside of glass microtubes with a polymer hydrogel material dramatically alters the way capillary forces draw water into the tiny structures,
The foam-like batteries and supercapacitors were made using an aerogel material taken from tree fibres,
The batteries and supercapacitors-which are devices that store and release power much faster than batteries-were made out of a wood-based aerogel.
the team carefully engineered a 3d supercapacitor with carbon nanotube electrodes, and a hybrid battery. Both of them were fully functional even at 75 percent compression,
and the supercapacitor worked stably for 400 charge cycles.""Our results demonstrate that layer-by-layer self-assembly inside aerogels is a rapid,
Flexible 3-D supercapacitors tested Rice university scientists advanced their recent development of laser-induced graphene (LIG) by producing
and testing stacked, three-dimensional supercapacitors, energy storage devices that are important for portable, flexible electronics. The Rice lab of chemist James Tour discovered last year that firing a laser at an inexpensive polymer burned off other elements and left a film of porous graphene, the much-studied atom-thick
The researchers viewed the porous, conductive material as a perfect electrode for supercapacitors or electronic circuits.
since their work to make vertically aligned supercapacitors with laser-induced graphene on both sides of a polymer sheet.
Supercapacitors combine useful qualities of both--the fast charge/discharge of capacitors and high-energy capacity of batteries--into one package.
LIG supercapacitors appear able to do all that with the added benefits of flexibility and scalability.
-and-release characteristics of a supercapacitor. In testing, the researchers charged and discharged the devices for thousands of cycles with almost no loss of capacitance.
To show how well their supercapacitors scale up for applications, the researchers wired pairs of each variety of device in serial and parallel.
The vertical supercapacitors showed almost no change in electrical performance when flexed, even after 8, 000 bending cycles.
LIG supercapacitors of the same size offer three times the performance in power (the speed at which energy flows).
and testing stacked, three-dimensional supercapacitors, energy storage devices that are important for portable, flexible electronics. The Rice lab of chemist James Tour discovered last year that firing a laser at an inexpensive polymer burned off other elements and left a film of porous graphene, the much-studied atom-thick
The researchers viewed the porous, conductive material as a perfect electrode for supercapacitors or electronic circuits.
since their work to make vertically aligned supercapacitors with laser-induced graphene on both sides of a polymer sheet.
Supercapacitors combine useful qualities of both the fast charge/discharge of capacitors and high-energy capacity of batteries into one package.
LIG supercapacitors appear able to do all that with the added benefits of flexibility and scalability.
-and-release characteristics of a supercapacitor. In testing, the researchers charged and discharged the devices for thousands of cycles with almost no loss of capacitance.
To show how well their supercapacitors scale up for applications, the researchers wired pairs of each variety of device in serial and parallel.
The vertical supercapacitors showed almost no change in electrical performance when flexed, even after 8, 000 bending cycles.
LIG supercapacitors of the same size offer three times the performance in power (the speed at which energy flows).
The new battery high power density (1400 W/L) and good energy density (40 Wh/L) put it in the uniquely favorable position of combining a power density that is as high as that of current supercapacitors with an energy density on par with those of state-of-the-art
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