Articles tagged with Supercapacitors
Researchers developed a fiber-like supercapacitor with high volumetric energy density, comparable to thin-film lithium batteries. The device offers fast charging and discharging capabilities, making it suitable for powering wearable medical monitors and communications equipment.
Researchers created a new ultracapacitor by combining graphene flakes with single-walled carbon nanotubes, resulting in three times higher specific capacitance. The hybrid structure's low costs and small size make it suitable for portable electronics and hybrid electric vehicles.
Researchers at Oregon State University have discovered a way to convert cellulose from trees into nitrogen-doped nanoporous carbon membranes, used in high-power energy storage devices called supercapacitors. This single-step reaction could enable mass production of these devices at lower cost.
Researchers have discovered a new class of high heat-tolerant electronics using supercapacitors made from CCTO, which could compete with existing devices and operate at higher temperatures. The material's permittivity and loss tangent properties are linked, allowing for efficient energy storage.
A team of researchers has created a new type of supercapacitor that uses wood-biochar as the electrode surface, eliminating the need for expensive and corrosive chemicals. The new technology reduces material and environmental costs, making it a more sustainable alternative to traditional supercapacitors.
Researchers develop novel supercapacitor design using porous silicon and graphene coating, enabling over two orders of magnitude improvement in energy density. The device has the potential to power consumer electronics and renewable energy systems.
Researchers at Rice University have created a supercapacitor that operates reliably at temperatures of up to 200 degrees Celsius, overcoming key limitations of conventional energy storage devices. The device uses a clay-based membrane electrolyte, which provides high thermal stability and conductivity.
Researchers developed a powerful micro-supercapacitor, just nanometres thick, that can store more energy and provide more power per unit volume than state-of-the-art supercapacitors. The device has potential applications in miniaturized technologies, including implantable medical devices and RFID tags.
Researchers at UNIST developed a scalable method to produce enhanced yet affordable materials for supercapacitors using mesoporous graphene nano-balls. The MGB-based supercapacitor shows excellent capacitance and high performance.
Researchers have synthesized a material that shows high capability for storing energy, enabling rapid charging of devices. The new material could provide rapid power to small devices and large industrial equipment.
Researchers at UCLA have developed a new technique to fabricate micro-scale graphene-based supercapacitors, which can charge and discharge faster than standard batteries. The method uses a DVD burner to create the devices, making them more affordable and scalable.
Researchers have designed an ultracapacitor that maintains a near-constant voltage, enabling its use in low-voltage electric vehicle circuits and handheld electronics. The device achieves this through an electromechanical system that slowly lifts the core out of the electrolyte solution as charge is released.
Researchers from Drexel University have developed a novel electrochemical flow capacitor that combines the strengths of batteries and supercapacitors, addressing scalability issues. The technology allows for rapid charging and discharging ability, enabling efficient storage and delivery of renewable energy.
Researchers at UCLA have developed graphene-based electrochemical capacitors that store substantial amounts of charge, far surpassing traditional batteries. These devices exhibit ultrahigh energy density values while maintaining high power density and excellent cycle stability.
A team led by Drexel University's Yury Gogotsi has provided the first quantitative picture of the structure of ionic liquid absorbed inside disordered microporous carbon electrodes in supercapacitors. This breakthrough mechanism opens the door for designing materials with improved energy storage capabilities.
Energy storage device efficiency metrics need standardization, according to Drexel University researcher Dr. Yury Gogotsi. The current Ragone plot method may not provide a complete picture of device capability, and other metrics such as cycle lifetime, energy efficiency, and self-discharge must also be reported.
Rice University scientists have developed a solid-state, nanotube-based supercapacitor that combines the benefits of batteries and capacitors. The new device is stable, scalable, and suitable for extreme environments, with potential applications in electronics, sensors, and renewable energy systems.
Researchers at Rice University have discovered a way to transform sheets of graphite oxide into functional supercapacitors by writing patterns into them with a laser. The devices exhibit good electrochemical performance without the need for chemicals, comparable to existing thin-film micro-supercapacitors.
Researchers at the University of Texas at Austin have created a new porous, three-dimensional carbon that can be used as a greatly enhanced supercapacitor. This discovery offers promise for energy storage in various fields, including energy grids and electric cars.
Scientists have created a novel form of carbon that acts like a super-absorbent sponge, soaking up electric charge. The material can be incorporated into supercapacitor energy-storage devices with remarkably high storage capacity and quick recharge time.
Researchers at Berkeley Lab have created micro-supercapacitors with high energy storage densities, potentially replacing batteries in portable devices. The new technology integrates supercapacitors into microfabrication processes, enabling faster and longer-lasting energy storage.
Researchers at Stanford University have developed a method to produce ultra-lightweight, bendable batteries and supercapacitors using ordinary paper coated with carbon nanotubes and silver nanowires. The paper-based energy storage devices can store and discharge electricity rapidly and are highly durable.
Artificially introducing defects in nanotubes can enhance the development of supercapacitors, which combine the advantages of batteries and electrostatic capacitors. The researchers found that defects create additional charge sites, increasing stored charge capacity and power density.
Researchers at the University of Southern California have created a new type of supercapacitor that is both transparent and flexible, allowing for potential applications in 'e-paper' displays and conformable products. The device stores an energy density of 1.29 Watt-hour/kilogram, significantly higher than conventional capacitors.
Researchers at the University of Texas at Austin have developed a new carbon-based material called graphene that can store electrical charge in ultracapacitor devices, potentially doubling their capacity. The breakthrough could enable the massive installation of renewable energies like wind and solar power.
Rensselaer Polytechnic Institute researchers develop nanocomposite paper-based energy storage device that meets tricky design requirements of gadgets and implantable medical equipment. The device can function as both a high-energy battery and a high-power supercapacitor, using human blood or sweat to power it.
Researchers at MIT have created a new type of ultracapacitor using nanotube structures, which can increase the storage capacity by up to 25 times. This innovation has the potential to provide a more efficient and economically viable alternative to conventional batteries.
Researchers at UC Davis have developed a new method to create supercapacitors using aligned and packed carbon nanotubes on nickel foil. This innovation enables the creation of devices with high power density, up to 30 kilowatts per kilogram (kW/kg), significantly outperforming current commercial devices.