Keyword: Batteries

Briefs: Manufacturing & Prototyping
The robot is built entirely from smaller robots and can form a robophysical system that can move by itself.
Briefs: Electronics & Computers
This robot “blood” stores energy, transmits force, operates appendages, and provides structure, all in an integrated design.
Briefs: Green Design & Manufacturing
A solvent leaches cobalt and lithium for reuse from spent batteries.
Briefs: Energy

Researchers have developed a more efficient, more reliable potassium-oxygen battery with a cathode that stores the energy produced by a chemical reaction in a metal-oxygen or metal-air battery....

Technology Leaders: Software
As lithium-ion battery production doubles, more viable energy storage solutions are needed.
Briefs: Transportation
A combination of additives shows promise for boosting battery performance in very cold or hot weather.
Briefs: Energy
The nanogenerator also acts as a weather station.
Briefs: Sensors/Data Acquisition
RFID-based devices work in indoor and outdoor lighting conditions and could transmit data for years before they need to be replaced.
Articles: Electronics & Computers
Battelle's simple, cost-effective sensor detects the onset of battery faults.
Articles: Electronics & Computers
A prototype of the AC 'Biode' battery has been developed at 20W.
Briefs: Electronics & Computers

Car engines, laptop computers, cellphones, and refrigerators all heat up with overuse. That heat can be captured and turned into energy using a method that produces electricity from heat. The...

Briefs: Electronics & Computers

Excess heat given off by smartphones, laptops, and other electronic devices contributes to malfunctions and, in extreme cases, can even cause lithium batteries to explode. To guard...

Briefs: Manufacturing & Prototyping

Researchers have 3D-printed an all-liquid device that, with the click of a button, can be repeatedly reconfigured on demand to serve a wide range of applications from making battery materials to screening drug...

Articles: Transportation
While most cars today run on 12-volt DC batteries, cars in the future will run on 48 volts. This increased voltage could affect ball bearing performance.
Articles: Energy
Semi-Liquid Metal Anode for Next-Generation Batteries

Researchers from Carnegie Mellon University have developed a semi-liquid lithium metal-based anode. Lithium batteries made using this new...

Briefs: Mechanical & Fluid Systems
Visualizing Motion of Water Molecules for Liquid-Based Electronics

A high-resolution inelastic x-ray scattering technique was used to measure the strong bond involving a hydrogen atom sandwiched between two oxygen atoms. This hydrogen bond is a quantum-mechanical phenomenon responsible for various properties of water, including viscosity, that...

Briefs: Nanotechnology
High-Temperature Dielectric Nanocomposite

A nanocomposite was developed that could be a superior high-temperature dielectric material for flexible electronics, energy storage, and electric devices. The nanocomposite combines one-dimensional polymer nanofibers and two-dimensional boron nitride nano-sheets. The nanofibers reinforce the...

Briefs: Electronics & Computers

Lithium-air batteries are poised to become the next replacement for currently used lithium-ion batteries that power electric vehicles, cell-phones, and computers....

Briefs: Energy

Today's lithium-ion batteries use cathodes (one of the two electrodes in a battery) made of a transition metal oxide. Batteries with cathodes made of sulfur are considered a...

Briefs: Materials

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: Energy

Batteries with metallic lithium anodes offer enhanced efficiency compared to conventional lithium-ion batteries because of their higher capacity. However, safety concerns and a short lifespan stand in the way. To...

Briefs: Materials

Lithium batteries allow electric vehicles to travel several hundred miles on one charge. Their capacity for energy storage is well known — so is their tendency to occasionally...

Briefs: Automotive

Conventional electrolytes used in lithium-ion batteries that power household electronics like computers and cellphones are not suitable for lithium-metal batteries....

Briefs: Transportation

Metal-air batteries are one of the lightest and most compact types of batteries but when not in use, they degrade quickly, as corrosion eats away at their metal electrodes. While...

Briefs: Electronics & Computers

Lithium-ion batteries commonly used in consumer electronics are notorious for bursting into flame when damaged or improperly packaged. Inspired by the unusual behavior of some liquids...

Briefs: Sensors/Data Acquisition

Thin, durable heating patches were created using intense pulses of light to fuse tiny silver wires with polyester. Their heating performance is nearly 70 percent higher than similar patches. The inexpensive...

Briefs: Semiconductors & ICs

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...

5 Ws: Materials
Who

Millions of people who rely on pacemakers, defibrillators, and other livesaving implantable devices powered by batteries that need to be replaced every five to 10 years.