Latest Technology News


Beyond the lithium ion: Significant step toward a better performing battery

Fri, 17 Apr 2015 11:13:52 EDT

Researchers have taken a significant step toward the development of a battery that could outperform the lithium-ion technology used in electric cars such as the Chevy Volt. They have shown they can replace the lithium ions, each of which carries a single positive charge, with magnesium ions, which have a plus-two charge, in battery-like chemical reactions, using an electrode with a structure like those in many of today's devices.<img src="" height="1" width="1" alt=""/>
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Engineer improves rechargeable batteries with nano 'sandwich'

Fri, 17 Apr 2015 08:50:33 EDT

The key to better cell phones and other rechargeable electronics may be in tiny "sandwiches" made of nanosheets, according to mechanical engineering research.<img src="" height="1" width="1" alt=""/>
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Electrolyte genome could be battery game-changer

Wed, 15 Apr 2015 13:32:06 EDT

A new breakthrough battery -- one that has significantly higher energy, lasts longer, and is cheaper and safer -- will likely be impossible without a new material discovery. And a new material discovery could take years, if not decades, since trial and error has been the best available approach.<img src="" height="1" width="1" alt=""/>
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Fast charging cycles make batteries age more quickly: X-ray study images damage in lithium-ion batteries

Tue, 14 Apr 2015 09:41:17 EDT

Charging lithium-ion batteries too quickly can permanently reduce the battery capacity. Portions of the energy storage structure are thereby destroyed and deactivated. These structural changes have been visualized for the first time. The fluorescence studies show that even after only a few charging cycles, damage to the inner structure of the battery material is clearly evident, damage which takes longer to arise during slower charging.<img src="" height="1" width="1" alt=""/>
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New material could boost batteries' power, help power plants

Fri, 10 Apr 2015 11:36:03 EDT

You're going to have to think very small to understand something that has the potential to be very big. A team of researchers has developed a material that acts as a superhighway for ions. The material could make batteries more powerful, change how gaseous fuel is turned into liquid fuel and help power plants burn coal and natural gas more efficiently.<img src="" height="1" width="1" alt=""/>
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Erupting electrodes: How recharging leaves behind microscopic debris inside batteries

Fri, 10 Apr 2015 09:55:31 EDT

Using a powerful microscope to watch multiple cycles of charging and discharging under real battery conditions, researchers have gained insight into the chemistry that clogs rechargeable lithium batteries.<img src="" height="1" width="1" alt=""/>
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Researchers discover N-type polymer for fast organic battery

Mon, 06 Apr 2015 12:14:44 EDT

Researchers have reported developing an efficient conductive electron-transporting polymer, a long-missing puzzle piece that will allow ultra-fast battery applications. The discovery relies upon a 'conjugated redox polymer' design with a naphthalene-bithiophene polymer, which has traditionally been used for applications including transistors and solar cells. With the use of lithium ions as dopant, researchers found it offered significant electronic conductivity and remained stable and reversible through thousands of cycles of charging and discharging energy.<img src="" height="1" width="1" alt=""/>
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First metal-free catalyst created for rechargeable zinc-air batteries

Mon, 06 Apr 2015 12:14:00 EDT

Researchers have made what they believe is the first metal-free bifunctional electrocatalyst that performs as well or better than most metal and metal oxide electrodes in zinc-air batteries.<img src="" height="1" width="1" alt=""/>
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Ultrafast aluminum battery offers safe alternative to conventional batteries

Mon, 06 Apr 2015 12:10:31 EDT

Scientists have invented the first high-performance aluminum battery that's fast-charging, long-lasting and inexpensive. Researchers say the new technology could replace many lithium-ion and alkaline batteries in wide use today.<img src="" height="1" width="1" alt=""/>
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Battery energy storage project shows promise for electricity network

Thu, 02 Apr 2015 10:14:17 EDT

Scientists have revealed the potential of a new battery energy storage system to reduce electricity prices while improving power efficiency and quality.<img src="" height="1" width="1" alt=""/>
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Drop the bounce test: A common battery test often bounces off target

Wed, 01 Apr 2015 14:08:35 EDT

The battery bounce test, popularized in online videos, has led to the common conclusion that a high bounce means a dead battery. But researchers have found that bouncing is not actually an effective way to check a battery's charge.<img src="" height="1" width="1" alt=""/>
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Ads in free mobile apps have hidden costs for both users and developers

Wed, 01 Apr 2015 09:36:23 EDT

Advertising may allow developers to make smartphone apps free, but it has hidden costs -- draining batteries, eating up network data, and using more memory.<img src="" height="1" width="1" alt=""/>
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Goodbye, range anxiety? Electric vehicles may be more useful than previously thought

Mon, 30 Mar 2015 13:46:02 EDT

In the first study of its kind, scientists quantitatively show that electric vehicles will meet the daily travel needs of drivers longer than commonly assumed. They found that batteries that have lost 20 percent of their originally rated energy storage capacity can still meet the daily travel needs of more than 85 percent of US drivers.<img src="" height="1" width="1" alt=""/>
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Bacteria can use magnetic particles to create a 'natural battery'

Thu, 26 Mar 2015 15:16:54 EDT

New research shows bacteria can use tiny magnetic particles to effectively create a 'natural battery.' According to new work, the bacteria can load electrons onto and discharge electrons from microscopic particles of magnetite. This discovery holds out the potential of using this mechanism to help clean up environmental pollution, and other bioengineering applications.<img src="" height="1" width="1" alt=""/>
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Mobile battery life can be prolonged with system settings

Wed, 25 Mar 2015 11:07:29 EDT

By using crowdsourced measurements researchers explain the energy impact of smartphone system settings, and their results show how to improve a mobile device's battery lifetime by adjusting the settings. Researchers have studied how the impact of different settings on battery lifetime can be estimated using crowdsourced measurements from a large community of devices.<img src="" height="1" width="1" alt=""/>
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New processing technology converts used packing peanuts to battery components

Sun, 22 Mar 2015 08:03:09 EDT

Researchers have shown how to convert waste packing peanuts into high-performance carbon electrodes for rechargeable lithium-ion batteries that outperform conventional graphite electrodes, representing an environmentally friendly approach to reuse the waste.<img src="" height="1" width="1" alt=""/>
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'Green' batteries made to last: Oxide/carbon composite outperforms expensive platinum composites

Thu, 19 Mar 2015 19:31:16 EDT

An oxide/carbon composite outperforms expensive platinum composites in oxygen chemical reactions for green energy devices. Electrochemical devices are crucial to a green energy revolution in which clean alternatives replace carbon-based fuels. This revolution requires conversion systems that produce hydrogen from water or rechargeable batteries that can store clean energy in cars. Now, Singapore-based researchers have developed improved catalysts as electrodes for efficient and more durable green energy devices.<img src="" height="1" width="1" alt=""/>
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Quantum dots 'breathe' in response to stress

Thu, 19 Mar 2015 09:19:42 EDT

Researchers have watched nanoscale semiconductor crystals expand and shrink in response to powerful pulses of laser light. This ultrafast "breathing" provides new insight about how such tiny structures change shape as they start to melt -- information that can help guide researchers in tailoring their use for a range of applications.<img src="" height="1" width="1" alt=""/>
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Human brain inspires wearable micro-sensors

Wed, 18 Mar 2015 07:40:56 EDT

An electrical and computer engineer is taking a cue from nature to devise the next generation of integrated low-power, wearable micro-devices.<img src="" height="1" width="1" alt=""/>
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Materials research could unlock potential of lithium-sulfur batteries

Tue, 17 Mar 2015 10:39:08 EDT

Scientists have discovered a high performance cathode material with great promise for use in next generation lithium-sulfur batteries that could one day be used to power mobile devices and electric cars.<img src="" height="1" width="1" alt=""/>
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Density of lithium storage materials increased

Mon, 16 Mar 2015 11:34:24 EDT

Scientists have pushed the limits to further development of lithium ion batteries: The researchers developed a new cathode material based on a new storage principle, as a result of which energy storage densities can be increased beyond those of systems known so far.<img src="" height="1" width="1" alt=""/>
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High power and high safety oxide-based negative electrode materials for Li-ion battery

Fri, 13 Mar 2015 09:45:59 EDT

Researchers have shown electrochemical Li insertion and deinsertion property of Ti-Nb mixed oxide Ti2Nb10O29 (TNO) at high current rate is greatly improved by vacuum annealing. This is mainly attributed to enhancement of intrinsic electronic conductivity of TNO by introducing oxygen vacancy. Vacuum-annealed TNO is promising negative electrode material of high power and high safety Li-ion battery for large scale application.<img src="" height="1" width="1" alt=""/>
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Silk could be new 'green' material for next-generation batteries

Wed, 11 Mar 2015 12:44:31 EDT

Lithium-ion batteries have enabled many of today's electronics, from portable gadgets to electric cars. But much to the frustration of consumers, none of these batteries last long without a recharge. Now scientists report the development of a new, 'green' way to boost the performance of these batteries -- with a material derived from silk.<img src="" height="1" width="1" alt=""/>
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Longer life cycle for lithium-ion batteries?

Fri, 06 Mar 2015 18:17:38 EST

Lithium-ion batteries are common in consumer electronics. They are one of the most popular types of rechargeable batteries for portable electronics, with a high energy density, no memory effect and only a slow loss of charge when not in use. Beyond consumer electronics, lithium-ion batteries have also grown in popularity for military, electric vehicle and aerospace applications. Researchers are exploring new energy storage technology that could give the battery an even longer life cycle.<img src="" height="1" width="1" alt=""/>
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Microscopy directly images problematic lithium dendrites in batteries

Fri, 06 Mar 2015 10:23:51 EST

Scientists have captured the first real-time nanoscale images of lithium dendrite structures known to degrade lithium-ion batteries. Dendrites form when metallic lithium takes root on a battery's anode and begins growing haphazardly. If the dendrites grow too large, they can puncture the divider between the electrodes and short-circuit the cell, resulting in catastrophic battery failure.<img src="" height="1" width="1" alt=""/>
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Big box stores could ditch the grid, use natural gas fuel cells instead

Wed, 04 Mar 2015 19:02:32 EST

Natural gas powered solid oxide fuel cells, located at the point of use to produce electricity for facilities the size of big box stores, could provide economic and environmental benefits, with additional research, according to new study.<img src="" height="1" width="1" alt=""/>
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Understanding electric car 'range anxiety' could be key to wider acceptance

Tue, 03 Mar 2015 12:39:25 EST

Drivers have been slow to adopt electric vehicles due to 'range anxiety,' the fear of becoming stranded with an empty battery. This phenomenon was recently addressed in a study that aims to explain range anxiety and determine whether hands-on experience can reduce drivers' stress.<img src="" height="1" width="1" alt=""/>
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Glass coating improves battery performance

Mon, 02 Mar 2015 15:08:25 EST

Researchers have investigated a strategy to prevent this 'polysulfide shuttling' phenomenon by creating nano-sized sulfur particles, and coating them in silica, otherwise known as glass.<img src="" height="1" width="1" alt=""/>
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Lithium from the coal in China

Thu, 26 Feb 2015 10:16:27 EST

Coal from China could become a major source of the metal lithium, according to a review of the geochemistry. Lithium is an essential component of rechargeable batteries used almost ubiquitously in mobile gadgets such as phones, laptops, tablet computers and in many electric vehicles.<img src="" height="1" width="1" alt=""/>
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New flow battery to keep big cities lit, green and safe

Wed, 25 Feb 2015 12:27:41 EST

The new zinc-polyiodide redox flow battery uses an electrolyte that has more than two times the energy density of the next-best flow battery used to store renewable energy and support the power grid. It's high energy density, and resulting lower cost, make it ideal for large cities where space is at a premium.<img src="" height="1" width="1" alt=""/>
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