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Two of humanity’s most ubiquitous historical materials, cement and carbon black (which resembles very fine charcoal), may form the basis for a novel, low-cost energy storage system, according to a new study. The technology could facilitate the use of renewable energy sources such as solar, wind, and tidal power by allowing energy networks to remain stable despite fluctuations in renewable energy supply.

The two materials, the researchers found, can be combined with water to make a supercapacitor—an alternative to batteries—that could provide storage of electrical energy.

As an example, the MIT researchers who developed the system say that their supercapacitor could eventually be incorporated into the concrete foundation of a house, where it could store a full day’s worth of energy while adding little (or no) to the cost of the foundation and still providing the needed structural strength. The researchers also envision a concrete roadway that could provide contactless recharging for electric cars as they travel over that road.

Electric vehicle manufacturer Tesla is the frequent subject of rumors and speculation, all of which must be taken with a grain of salt. But if the newest batch of rumors is to be believed, Tesla is currently looking into an “extreme fast charging” technology developed by Israeli startup StoreDot, per Inside EVs.

The news comes via an article in USA Today that, as Inside EVs noted, “doesn’t cite any sources.” The USA Today article in question was written by a contributor and contained a disclaimer at the bottom reading, “Members of the editorial and news staff of the USA TODAY Network were not involved in the creation of this content.”

If the report is to be believed, Tesla’s interest in StoreDot could mean shorter charging times for Teslas, as the company claims to have developed batteries that can charge 100 miles of driving range in just five minutes, per Inside EVs.

Sodium-ion (Na-ion) batteries and solid-state batteries have both been in the news recently. Why? Because the need for battery storage is growing rapidly as the global economy seeks carbon-based energy alternatives in pursuit of the goal to achieve net-zero emissions by the mid-century.

Na-ion Battery News

In April I wrote about BYD, a Chinese electric vehicle (EV) manufacturer, that is using sodium-ion (Na-ion) battery packs instead of lithium-ion (Li-ion) in some of its models. In its latest report, IDTechEx, out of Cambridge in the United Kingdom, states that although Na-ion batteries are not the answer to all battery-power applications, they do provide a complimentary addition to battery packs used not just in EVs but also for backup power within utilities and factories.

Since launching in July 2017, the Model 3 from Tesla Inc TSLA has been one of the bestselling electric vehicles of all time.

A recent Bloomberg survey reveals how Model 3 owners have felt about the company over time — and Tesla CEO Elon Musk might not love the results.

What Happened: The Model 3 and Model Y continue to be Tesla’s bestselling models and big reasons why the company has dominated the market share for electric vehicles around the world.

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The range has been a top concern for potential buyers transitioning from internal combustion vehicles to electric ones. In 2008, when EVs were still a rare new concept, Tesla promised a 200-mile (320 km) range on a single charge on its Roadster, a model it soon discontinued. Its second offering, Model S, promised a higher range of 249 miles (401 km) in 2012.

RMIT University’s new proton battery could revolutionize energy storage, offering a safe, affordable, eco-friendly alternative to lithium-ion batteries.

The latest ‘proton battery’ developed by RMIT University holds the potential to revolutionize power supply for homes, vehicles, and devices without the disposal-related environmental challenges posed by lithium-ion batteries.

The battery works by using a carbon electrode to store hydrogen that has been separated from water, functioning like a hydrogen fuel cell to generate electricity.

The technology can also be used in fog and smoke, aiding firefighters.

This is according to a report by PopSci published on Wednesday.

Researchers at Purdue University and Los Alamos National Laboratory have joined forces to engineer something they call “heat-assisted detection and ranging,” or HADAR, which consists of a completely new camera imaging system based on AI interpretations of heat signatures. The technology could soon allow vehicles and robots to see at night time.

Continue reading “Scientists invent accurate AI-powered heat vision for driving at night” »

Organic light-emitting diodes (OLEDs) are now widely used. For use in displays, blue OLEDs are additionally required to supplement the primary colors red and green. Especially in blue OLEDs, impurities give rise to strong electrical losses, which could be partly circumvented by using highly complex and expensive device layouts. A team from the Max Planck Institute for Polymer Research has now developed a new material concept that potentially allows efficient blue OLEDs with a strongly simplified structure.

From televisions to smartphones: organic light-emitting diodes (OLEDs) are nowadays finding their way into many devices that we use every day. To display an image, they are needed in the three primary colors red, green and blue. In particular, light-emitting diodes for blue light are still difficult to manufacture because blue light—physically spoken—has a high energy, which makes the development of materials difficult.

Especially the presence of minute quantities of impurities in the material that cannot be removed plays a decisive role in the performance of these materials. These impurities— oxygen molecules, for example—form obstacles for electrons to move inside the diode and participate in the light-generation process. When an electron is captured by such an obstacle, its energy is not converted into light but into heat. This problem, known as “charge trapping”, occurs primarily in blue OLEDs and significantly reduces their efficiency.

In two years, the world’s first flying car will no longer be a science-fiction concept. The Federal Aviation Administration gave the Alef Aeronautics “Model A” car a Special Airworthiness Certification in June, approving the vehicle for road and air tests, the New York Post reported.