Latest Technology News


Batteries


Inexpensive organic material gives safe batteries a longer life

Mon, 19 Jun 2017 13:40:50 EDT

Modern batteries power everything from cars to cell phones, but they are far from perfect -- they catch fire, they perform poorly in cold weather and they have relatively short lifecycles, among other issues. Now researchers have described a new class of material that addresses many of those concerns in a new article.
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Reducing environmental impact of idling buses and delivery trucks

Fri, 16 Jun 2017 08:37:08 EDT

Researchers have developed a system for service vehicles that could reduce emissions and save companies and governments millions of dollars per year in fuel costs.
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Electrolytes made from liquefied gas enable batteries to run at ultra-low temperatures

Thu, 15 Jun 2017 14:27:36 EDT

Engineers have developed new electrolytes that enable lithium batteries to run at temperatures as low as -60 degrees Celsius with excellent performance -- in comparison, today's lithium-ion batteries stop working at -20 degrees Celsius. The new electrolytes also enable electrochemical capacitors to run as cold as -80 degrees Celsius -- their current limit is -40 degrees Celsius.
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Clean energy stored in electric vehicles to power buildings

Wed, 14 Jun 2017 12:04:27 EDT

Stored energy from electric vehicles (EVs) can be used to power large buildings – creating new possibilities for the future of smart, renewable energy - thanks to ground-breaking battery research.
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Clean energy stored in electric vehicles to power buildings

Wed, 14 Jun 2017 11:29:24 EDT

Stored energy from electric vehicles (EVs) can be used to power large buildings -- creating new possibilities for the future of smart, renewable energy.
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Seaweed derivative could be just what lithium-sulfur batteries need

Tue, 13 Jun 2017 14:52:00 EDT

Lithium-sulfur batteries have great potential as a low-cost, high-energy, energy source for both vehicle and grid applications. However, they suffer from significant capacity fading. Now scientists have made a surprising discovery that could fix this problem.
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Batteries from scrap metal

Fri, 09 Jun 2017 12:03:56 EDT

Scientists have made good use of waste while finding an innovative solution to a technical problem by transforming rusty stainless steel mesh into electrodes with outstanding electrochemical properties that make them ideal for potassium-ion batteries.
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200 years of the bicycle: Computer scientists electrify historic “dandy horse”

Wed, 07 Jun 2017 08:57:34 EDT

Small children still use a form of the so-called dandy horse, balance bike or draisine, which the inventor Karl von Drais first tested on a longer route on June 12, 1817. Now, about 200 years later, computer scientists are making the forerunner of the bicycle attractive for adults as well.
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Seeing the forest and the trees to find parasitic reactions in batteries

Tue, 06 Jun 2017 09:09:38 EDT

A detailed view of the atomic scale and mesoscale changes in a troubling layer offers insights for a better battery.
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Battery-less pacemaker: Researchers test microwave-powered device

Mon, 05 Jun 2017 15:19:38 EDT

A new battery-less pacemaker can be implanted directly into a patient's heart.
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'Instantly rechargeable' battery could change the future of electric and hybrid automobiles

Thu, 01 Jun 2017 15:18:13 EDT

New technology could provide an 'instantly rechargeable' method that is safe, affordable and environmentally friendly for recharging electric and hybrid vehicle batteries through a quick and easy process similar to refueling a car at a gas station.
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Exploring the relationship between the two-body and the collective

Tue, 30 May 2017 12:19:32 EDT

New approach accurately determines how electrolytes in water behave, offering insights for energy, synthesis, and medicine.
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Printed, flexible and rechargeable battery can power wearable sensors

Wed, 24 May 2017 15:26:44 EDT

Nanoengineers have developed the first printed battery that is flexible, stretchable and rechargeable. The zinc batteries could be used to power everything from wearable sensors to solar cells and other kinds of electronics.
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Nanoalloys ten times as effective as pure platinum in fuel cells

Wed, 24 May 2017 14:07:31 EDT

A new type of nanocatalyst can result in the long-awaited commercial breakthrough for fuel cell cars. Research results show that it is possible to significantly reduce the need for platinum, a precious and rare metal, by creating a nanoalloy using a new production technique. The technology is also well suited for mass production.
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Nanoalloys ten times as effective as pure platinum in fuel cells

Wed, 24 May 2017 08:45:07 EDT

A new type of nanocatalyst can result in the long-awaited commercial breakthrough for fuel cell cars. Research results show that it is possible to significantly reduce the need for platinum, a precious and rare metal, by creating a nanoalloy using a new production technique. The technology is also well suited for mass production.
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Feather-light metal cathodes for stable lithium-oxygen batteries

Wed, 24 May 2017 08:44:11 EDT

Lithium-oxygen systems could someday outperform today's lithium-ion batteries because of their potential for high energy density. However, a number of important issues, such as their poor electrochemical stability must be addressed before these systems can successfully compete with current rechargeable batteries. Now, researchers report a new type of cathode, which could make lithium-oxygen batteries a practical option.
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Lithium oxide on tokamak walls can improve plasma performance, physicists discover

Fri, 19 May 2017 12:40:30 EDT

A coating of lithium oxide on the inside of fusion machines known as tokamaks absorbs as much deuterium as pure lithium does, a team of physicists has discovered.
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Graphene-nanotube hybrid boosts lithium metal batteries

Thu, 18 May 2017 15:38:53 EDT

Scientists have built high-capacity lithium metal batteries with anodes made of a graphene-carbon nanotube hybrid. The anodes quench the formation of damaging dendrites.
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Development of ultra-high capacity lithium-air batteries using CNT sheet air electrodes

Wed, 17 May 2017 12:07:33 EDT

A research team has developed lithium-air batteries with very high electric storage capacity15 times greater than the capacity of conventional lithium-ion batteries using carbon nanotubes (CNT) as an air electrode material.
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Better cathode materials for lithium-sulphur-batteries

Wed, 17 May 2017 10:12:02 EDT

Scientists have for the first time fabricated a nanomaterial made from nanoparticles of a titanium oxide compound (Ti4O7) that is characterized by an extremely large surface area, and tested it as a cathode material in lithium-sulphur batteries. The highly porous nanomaterial possesses high storage capacity that remains nearly constant over many charging cycles.
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Autonomous 'soaring with solar' concept

Wed, 17 May 2017 10:11:52 EDT

Scientists are building on the proven concept of autonomous cooperative soaring of unmanned aerial vehicles (UAVs), which enables long endurance flights of unmanned sailplanes that use the power of the Sun.
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Self-healing tech charges up performance for silicon-containing battery anodes

Mon, 15 May 2017 10:12:03 EDT

Researchers have found a way to apply self-healing technology to lithium-ion batteries to make them more reliable and last longer.
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Electroplating delivers high-energy, high-power batteries

Fri, 12 May 2017 19:57:45 EDT

The process that makes gold-plated jewelry or chrome car accents is now making powerful lithium-ion batteries. Researchers have developed a method for electroplating lithium-ion battery cathodes, yielding high-quality, high-performance battery materials that could also open the door to flexible and solid-state batteries.
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Is this the 'holey' grail of batteries?

Thu, 11 May 2017 14:20:02 EDT

In a battery system, electrodes containing porous graphene scaffolding offer a substantial improvement in both the retention and transport of energy, a new study reveals.
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Materials bend as they 'breathe' under high temperatures

Tue, 09 May 2017 14:52:08 EDT

Researchers develop high-temperature systems based on metal oxides that 'breathe' oxygen in and out, that could be used to control devices inside nuclear reactors or jet engines.
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Quartz powder for the battery of the future

Mon, 08 May 2017 11:27:04 EDT

Materials researchers have developed a method that could enable a breakthrough for the lithium-sulphur battery. In theory, lithium-sulphur batteries can deliver considerably more energy than today's conventional lithium-ion batteries, but current prototypes show a distinct loss of capacity after just a few charging cycles. As a result, they are not yet fit for widespread use, for instance in electric vehicles. With their new method, the researchers were able to gain crucial insights into how the rapid capacity loss occurs. And they showed: if quartz powder is added to the liquid component of the battery, this loss can be slowed down.
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When electric vehicles crash, what happens to the battery?

Mon, 08 May 2017 08:35:58 EDT

Safety, range and costs: these are the three big premises of electromobility. Safety definitely comes first. Lithium-based traction batteries are usually completely enclosed in the battery case and integrated in the vehicle to protect the battery from all conceivable stresses and external influences. This “armour” has an effect on construction, weight, size and overall design of the vehicle.
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Wood filter removes toxic dye from water

Thu, 04 May 2017 17:33:49 EDT

Engineers have developed a new use for wood: to filter water. Scientists added nanoparticles to wood, then used it to filter toxic dyes from water.
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1000 km range for e-cars thanks to a new battery concept

Tue, 02 May 2017 09:58:26 EDT

You cannot get far today with electric cars. One reason is that the batteries require a lot of space. Scientists are stacking large cells on top of one another. This provides vehicles with more power. Initial tests in the laboratory have been positive. In the medium term, the project partners are striving to achieve a range of 1,000 kilometers for electric vehicles.
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Sodium, magnesium to replace lithium in batteries

Tue, 02 May 2017 08:45:30 EDT

Scientists have produced novel electrolytes for rechargeable sodium and magnesium batteries. The research group’s objective was to develop alternatives to lithium-ion technology.
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