Keyword: Electrolytes

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: Mechanical & Fluid Systems

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: Electronics & Computers

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

5 Ws: Aerospace
Who

The Safe Impact Resistant Electrolyte (SAFIRE) fire-resistant battery can be used in consumer electronics such as cellphones, in drones and cars, and in soldiers’ packs.

Briefs: Sensors/Data Acquisition

The most common methods for glucose self-testing involve monitoring glucose levels in blood. These conventional measurements are not suitable for preventing hypoglycemia during exercise. The...

Briefs: Materials

Lithium-metal batteries — which can hold up to ten times more charge than lithium-ion batteries — haven't been commercialized because of a fatal flaw: as the batteries charge and...

Briefs: Energy

Researchers have developed a lithium-ion battery that uses a water-salt solution as its electrolyte — reaching the 4.0- Volt mark for electronics such as laptops — without the fire and...

Briefs: Sensors/Data Acquisition

A new painless and minimally invasive microneedle technology can extract large volumes of pure interstitial fluid for further study. Developed at Sandia Labs and the University of New Mexico, the microneedles are a few...

Briefs: Energy

It's difficult to see the details of atomic and topographical changes that lead to battery failure. However a team of researchers developed a method to see reactions leading to...

Briefs: Manufacturing & Prototyping

Corrosion of structural materials is a serious problem for industrial and civil infrastructure worldwide, costing billions of dollars, and hampering gross domestic product. Corrosion also presents...

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...

Briefs: Materials

In order to store information in the conventional magnetic memories of electronic devices, the material’s small magnetic domains are oriented “up” or “down” by using...

Briefs: Electronics & Computers

A method was created for electroless deposition of conformal ultrathin (<20 nm) metal oxides on the high-surface-area walls of commercial carbon nanofoam papers, typically 0.1–0.3 mm thick. The resulting...

Briefs: Photonics/Optics

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

Briefs: Energy
Three-Dimensional Zinc Electrode Architectures for High-Performance Batteries

Zinc-based batteries offer a safe, inexpensive alternative to fire-prone lithium-based batteries, yet have been historically limited by poor rechargeability. A 3D zinc (Zn) “sponge” electrode architecture was developed comprising interpenetrating networks of Zn...

Application Briefs: Materials
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Corrosion-related issues cost the U.S. economy $276 billion a year. The Energy Department’s National Energy Technology...

Briefs: Mechanical & Fluid Systems

Oxygen, water, and fuel are of paramount importance to human life. As a leading concept, the solid-oxide electrolysis cell (SOEC) is a very powerful technology, especially...

Briefs: Energy
Solid-State Lithium Sulfur Battery

Sulfur is a promising cathode for lithium batteries due to its high theoretical specific capacity (1673 mAh/g), low cost, and environmental friendliness. With a high specific energy density of 2500 Wh/kg, which is a five times greater energy density than a conventional Li-ion battery, Li-S batteries hold great...

Briefs: Manufacturing & Prototyping

NASA has investigated and demonstrated the simultaneous production of methane (CH4)...

Briefs: RF & Microwave Electronics

NASA’s Glenn Research Center has developed nanoionic-based radio frequency (RF) switches for use in devices that rely on low-power RF transmissions, such as automotive systems, RFID...

Briefs: Medical
Generation of High-Pressure Oxygen Via Electrochemical Pumping in a Multi-Stage Electrolysis Stack

Innovators at NASA’s Glenn Research Center have developed a method for producing pure high-pressure oxygen via an electrochemical pumping process through a solid oxide electrolysis (SOE) cell stack. Glenn’s device can either concentrate the...

Briefs: Electronics & Computers
Metal Oxide Vertical Graphene Hybrid Supercapacitors

NASA has developed a novel hybrid supercapacitor system utilizing vertical graphene as an electrode material grown directly on collector metals using a plasma enhanced chemical vapor de - position. Supercapacitors are an alternative to batteries for energy storage, offering high power density...

Briefs: Materials
Lithium Fluoride as a Polysulfide Shuttle Inhibitor for Lithium Sulfur Chemistry

In a lithium sulfur cell, the reduction of sulfur to lithium sulfide is a critical series of reactions that provides a large theoretical capacity of 1,672 mAh/g sulfur. One of many challenges in this system is the solubility of generated lithium polysulfides during...

Briefs: Green Design & Manufacturing
Hydrogen Peroxide for Microbial Growth Control in Space Potable Water Systems

NASA uses a biocide to prevent contamination of astronaut drinking water with harmful microorganisms. Concerns have arisen over existing biocides — that they’re inadequately effective, and may have toxic side effects when consumed. New microbial control methods are...

Briefs: Energy
Carbon Nanotube Tower-Based Supercapacitor

A new technology to create electrochemical double-layer supercapacitors is provided using carbon nanotubes as electrodes of the storage medium. This invention allows efficient transport between the capacitor electrodes through the porous nature of the nanotubes, and has a low interface resistance...

Briefs: Manufacturing & Prototyping
Full-Cell Evaluation/Screening Technique for New Battery Chemistries

A quick and cost-effective evaluation/screening technique for new battery chemistries was developed that integrates the individual advanced cell component in a full-cell format to identify the critical issues, such as cell component interaction and compatibility before...

Briefs: Materials
Li-Ion Electrolytes Containing Flame-Retardant Additives

In order to improve the safety and performance of lithium- ion cells, especially over a wide operating temperature range, a number of Li-ion electrolytes have been developed that contain flame-retardant additives in conjunction with fluorinated co-solvents to provide a safe,...

Briefs: Manufacturing & Prototyping
Advanced Materials and Fabrication Techniques for the Orion Attitude Control Motor

Rhenium, with its high melting temperature, excellent elevated temperature properties, and lack of a ductile-to-brittle transition temperature (DBTT), is ideally suited for the hot gas components of the ACM (Attitude Control Motor), and other hightemperature...

Briefs: Physical Sciences

Future sustainable energy generation technologies such as photovoltaic and wind farms require advanced energy storage systems on a massive scale to make...

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Articles: Internet of Things

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Q&A: Design

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Articles: Photonics/Optics

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