Washable, Wearable Battery-Like Devices

Wearable electronic components incorporated directly into fabrics have been developed that could be used for flexible circuits, healthcare monitoring, energy conversion, and other applications....

Tin Electrode Amplifies Supercapacitors

The material improves connectivity while maintaining recyclability and low cost.

Products of Tomorrow

Self-healing materials, quick disconnects, and eco-friendly micro-supercapacitors.

Ultrahigh-Energy-Density Capacitor

By introducing defects to a common material, a highly efficient capacitor offers dramatically increased energy density.

Supercapacitors Go Hybrid for Increased Performance and Efficiency

Learn about the properties of each capacitor option, and their ideal applications.

Charge Control Methods for Supercapacitors

A comparison of passive and active supercapacitor charging methods emphasizes the need for a close inspection on power source and supercapacitor demand.

Lightweight Green Supercapacitors Could Quickly Charge Devices

The energy storage device can store a charge up to 900 times greater than state-of-the-art supercapacitors.

Supercapacitors for Wearable Devices

These robust supercapacitors still work when stretched to eight times their original size.

Stretchable Micro-Supercapacitors Self-Power Wearable Devices

A stretchable system can harvest energy from human breathing and motion.

Supercapacitor Based on Manganese Oxide

This supercapacitor promises storage, high power, and fast charging.

Spin Capacitor for Energy-Efficient Electronics

The capacitor could enable a new generation of electronics that will require less power and generate less heat.

Device Harvests Energy from Low-Frequency Vibrations

A wearable energy harvesting device could generate energy from the swing of an arm while walking or jogging.

Stretchable Power Source for Wearables

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

Graphene Lid Extends Photoemission Electron Microscopy to Liquids

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...

Stretchable Interlaced-Nanowire Film for Ultraviolet Photodetectors with High Response Speed

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

Fabric Alternative to Batteries for Wearable Devices

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...

Rechargeable, High-Temperature, Molten Salt Battery

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...

Integrated Inverter for Controlling Multiple Electric Machines

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...

Near-Zero-Power Temperature Sensor

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...

Positional Sensor Measures Rotational and Lateral Displacements

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...

Cryo-Fluid Capacitor (CFC)

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...

Direct AC LED Engines

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...

Demolition Probe Gives Construction Workers a Break

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...

Generating Electricity with Energy-Harvesting Yarns

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...

Near-Zero-Power Temperature Sensor

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...

Inexpensive Method for Manufacturing Supercapacitor Electrodes

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

Electrical Requirements for Direct Current Electric Actuators

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...

Novel, Solid-State Hybrid Ultracapacitor Battery

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...