Keyword: Capacitors

Briefs: Energy
By introducing defects to a common material, a highly efficient capacitor offers dramatically increased energy density.
Technology Leaders: Energy
Learn about the properties of each capacitor option, and their ideal applications.
Briefs: Energy
The energy storage device can store a charge up to 900 times greater than state-of-the-art supercapacitors.
Briefs: Electronics & Computers
These robust supercapacitors still work when stretched to eight times their original size.
Briefs: Energy
This supercapacitor promises storage, high power, and fast charging.
Briefs: Electronics & Computers
The capacitor could enable a new generation of electronics that will require less power and generate less heat.
Briefs: Wearables
A wearable energy harvesting device could generate energy from the swing of an arm while walking or jogging.
Briefs: Wearables

Researchers have created highly stretchable supercapacitors for powering wearable electronics that consist of crumpled carbon nanotube (CNT) forests. The supercapacitors demonstrated solid performance...

Briefs: Test & Measurement

By capping liquids with graphene (an ultrathin sheet of pure carbon), researchers can easily image and analyze liquid interfaces and the surface of nanometer-scale objects...

Briefs: Sensors/Data Acquisition

Stretchable electronics, which can be stretched, deformed and wrapped onto nonplanar curved surfaces, have attracted much attraction due to their...

Briefs: Energy

Wearable biosensors for health monitoring lack a lightweight, long-lasting power supply. A new method was developed for making a charge-storing system that is easily integrated into...

Briefs: Energy

Growing demand for electric vehicles and more sustainable forms of transport means finding new forms of energy storage such as batteries, supercapacitors, and fuel cells. Currently, a major...

Briefs: Sensors/Data Acquisition

There are applications that require multiple electric machine drives, such as electric or hybrid electric vehicles, where there is a main traction motor and one or more accessory...

Briefs: Transportation
Electrode Design Boosts Supercapacitor Performance

Supercapacitors are rechargeable energy storage devices that deliver more power for their size than similar-sized batteries. They also recharge quickly, and they last for hundreds to thousands of recharging cycles. Today, they are used in hybrid cars’ regenerative braking systems and for other...

Briefs: Electronics & Computers

A temperature sensor was developed that runs on 113 picowatts of power — about 10 billion times smaller than a Watt. The technology could enable devices that can be powered by harvesting energy from...

Briefs: Lighting

Positional sensors have applications where a very accurate measurement of position is needed over a limited range. One example of such an application is in manipulation of a...

Briefs: Mechanical & Fluid Systems

NASA’s Kennedy Space Center (KSC) has created the Cryo-Fluid Capacitor (CFC) that capitalizes on the energy storage capacity of liquefied gases, and the relative simplicity of high-pressure gas bottles while...

Application Briefs: Lighting

As the lighting industry continues to mature, vendors continue to pursue inexpensive lighting solutions that offer universal compatibility and are easy to install. For OEMs and manufacturers, LEDs have proven to be a...

NASA Spinoff: Mechanical & Fluid Systems

Initially designed for use on the Moon, the Electro-Hydraulic Fracturing system — developed at Auburn University with NASA funding — relies upon short, high-pulse power created by...

Briefs: Materials

Researchers have developed yarns that generate electricity when they are stretched or twisted. The “twistron” yarns are constructed from carbon nanotubes — hollow cylinders of carbon...

Briefs: Electronics & Computers

A temperature sensor was developed that runs on 113 picowatts of power — about 10 billion times smaller than a Watt. The technology could enable devices that can be powered by harvesting energy from...

Briefs: Manufacturing & Prototyping

Supercapacitors can store and deliver energy faster than conventional batteries. But to realize advanced applications, supercapacitors need better electrodes, which connect the...

Briefs: Energy

Servo control systems require accurate control of motion parameters such as acceleration, velocity, and position. This requires a controller that can apply current (torque) to...

Briefs: Nanotechnology

NASA's Marshall Space Flight Center has developed a solid-state ultracapacitor with a unique combination of high capacitance and battery-like discharge characteristics. The high capacitance in...

Briefs: Materials
Process Turns Carbon Dioxide into 3D Graphene with Microporous Surface

The conversion of carbon dioxide to useful materials usually requires high energy input due to its ultrahigh stability. A heat-releasing reaction between carbon dioxide and sodium was developed to take carbon dioxide and turn it into 3D graphene with micropores across its...

Application Briefs: Energy
Keysight Technologies
Santa Rosa, CA
www.keysight.com

Implantable medical biosensors are commonly used to treat health problems via the unobtrusive collection of...

Articles: Electronics & Computers

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Briefs: Photonics/Optics

Ionic liquids—salts made by combining positively charged molecules (cations) and negatively charged molecules (anions) that are liquid at...

Articles: Motion Control

Electromagnetic compatibility (EMC) in frequency converters can be very problematic if not addressed properly in the initial design. EMC ensures the proper operation of devices to avoid negative...