battery

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#Bacterial nanometric amorphous Fe-based oxide as lithium-ion battery anode material Leptothrix ochracea is a species of iron-oxidizing bacteria that exists in natural hydrospheres where groundwater outwells worldwide.

but Jun Takada and colleagues at Okayama University discovered unexpected industrial functions of L-BIOX such as a great potential as an anode material in lithium-ion battery.

Since use of the battery that is a powerful electric source for portable electric devices has expanded to a variety of new areas such as transportation

and electric power storage improvement of battery capability and effort to develop new electrode materials have been demanded.

The general processes of nanosizing and appropriate surface modification which are required for tuning the battery property are complicated

Takada and colleagues proposed a unique approach to develop new electrode materials for Li-ion battery.

A Potential Lithium-Ion Battery Anode Material. Hideki Hashimoto Genki Kobayashi Ryo Sakuma Tatsuo Fujii Naoaki Hayashi Tomoko Suzuki Ryoji Kanno Mikio Takano and Jun Takada.

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such as in batteries for portable devices, where reduced weight is also highly desirable. Another property of these materials is that they conduct sound and elastic waves very uniformly,

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The inclusion of IGZO thin film transistors was necessary to provide power efficiency to increase battery life.

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such as the fine structures of cell components or modern catalysts and batteries. Until now, such fine details could only be rendered visible with the aid of electron microscopes

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#Charging portable electronics in 10 minutes Researchers at the University of California Riverside Bourns College of Engineering have developed a three-dimensional silicon-decorated cone-shaped carbon nanotube cluster architecture for lithium ion battery anodes that could enable charging of portable

Lithium ion batteries are the rechargeable battery of choice for portable electronic devices and electric vehicles. But they present problems.

Batteries in electric vehicles are responsible for a significant portion of the vehicle mass. And the size of batteries in portable electronics limits the trend of downsizing.

Silicon is a type of anode material that is receiving a lot of attention because its total charge capacity is 10 times higher than commercial graphite based lithium ion battery anodes.

Consider a packaged battery full-cell. Replacing the commonly used graphite anode with silicon anodes will potentially result in a 63 percent increase of total cell capacity and a battery that is 40 percent lighter and smaller.

In a paper Silicon Decorated Cone Shaped Carbon nanotube Clusters for Lithium ion battery Anode recently published in the journal Small UC Riverside researchers developed a novel structure of three-dimensional silicon decorated cone-shaped

carbon nanotube clusters architecture via chemical vapor deposition and inductively coupled plasma treatment. Lithium ion batteries based on this novel architecture demonstrate a high reversible capacity and excellent cycling stability.

The architecture demonstrates excellent electrochemical stability and irreversibility even at high charge and discharge rates nearly 16 times faster than conventionally used graphite based anodes.

The researchers believe the ultrafast rate of charge and discharge can be attributed to two reasons said Wei Wang lead author of the paper.

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Taox-capped Pt nanoparticles as efficient catalysts for polymer electrolyte fuel cells More information: Covert thermal barcodes based on phase change nanoparticles Scientific Reports 4 Article number:

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space-consuming batteries could become a thing of the past. It is possible to further miniaturize the electronic devices

or the space that has been used previously for batteries could be used for other purposes. In the case of launch vehicles

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"said Walter."Work with these enzymes could lead to future applications in green energy production such as fuel cells using biomaterials for fuel."

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such as a laptop whose casing serves as its battery, or an electric car powered by energy stored in its chassis,

instead of storing it in chemical reactions the way batteries do. As a result supercaps can charge

and operate for millions of cycles, instead of thousands of cycles like batteries. In a paper appearing online May 19 in the journal Nano Letters, Pint and Westover report that their new structural supercapacitor operates flawlessly in storing

One area where supercapacitors lag behind batteries is in electrical energy storage capability: Supercaps must be larger and heavier to store the same amount of energy as lithium-ion batteries.

However, the difference is not as important when considering multifunctional energy storage systems.""Battery performance metrics change when you're putting energy storage into heavy materials that are needed already for structural integrity,

"said Pint.""Supercapacitors store ten times less energy than current lithium-ion batteries, but they can last a thousand times longer.

That means they are suited better for structural applications. It doesn't make sense to develop materials to build a home, car chassis,

Sandwiched between the two electrodes is a polymer film that acts as a reservoir of charged ions, similar to the role of electrolyte paste in a battery.

There have also been recent press reports of several major efforts to develop multifunctional materials or structural batteries for use in electric vehicles and for military applications.

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#Silly Putty material inspires better batteries Using a material found in Silly Putty and surgical tubing, a group of researchers at the University of California,

Riverside Bourns College of Engineering have developed a new way to make lithium-ion batteries that will last three times longer between charges compared to the current industry standard.

The team created silicon dioxide (Sio2) nanotube anodes for lithium-ion batteries and found they had over three times as much energy storage capacity as the carbon-based anodes currently being used.

which are always trying to squeeze longer discharges out of batteries.""We are taking the same material used in kids'toys

and medical devices and even fast food and using it to create next generation battery materials, "said Zachary Favors,

The paper,"Stable Cycling of Sio2 Nanotubes as High-performance Anodes for Lithium-Ion Batteries,"was published online in the journal Nature Scientific Reports.

Silicon dioxide has previously been used as an anode material in lithium ion batteries, but the ability to synthesize the material into highly uniform exotic nanostructures with high energy density

There key finding was that the silicon dioxide nanotubes are extremely stable in batteries, which is important

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The device is a supercapacitor cousin to the battery. This one packs an interconnected network of graphene and carbon nanotubes so tightly that it stores energy comparable to some thin-film lithium batteriesn area where batteries have held traditionally a large advantage.

The product's developers engineers and scientists at Nanyang Technological University (NTU) in Singapore Tsinghua University in China and Case Western Reserve University in the United states believe the storage capacity by volume

The device also maintains the advantage of charging and releasing energy much faster than a battery.

Conversely batteries have high energy density and low power density which means they can last a long time

By mass supercapacitors might have comparable energy storage or energy density to batteries. But because they require large amounts of accessible surface area to store energy they have lagged always badly in energy density by volume.

which is comparable to that of a 4-volt-500-microampere-hour thin film lithium battery. The fiber supercapacitor demonstrated ultrahigh energy density value

while conventional rechargeable batteries have a lifetime of less than 1000 cycles. The team also tested the device for flexible energy storage.

Woven into uniforms the battery-like supercapacitors could power displays or transistors used for communication.

In addition The team is interested also in testing these fibers for multifunctional applications including batteries solar cells biofuel cells

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Kacyra's company built a scanner that could work outside off battery power and didn't require special protective shielding for eyes.

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One contains copper conductors that transmit power collected as high as 2000 feet down to a battery or the grid.

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#An All-Liquid Battery For Storing Solar And Wind energy You could call it a rainy-day fund.

A team of MIT researchers has built an all-liquid battery prototype that's designed to store excess energy from solar and wind power plants.

or the wind isn't blowing future versions of this battery could release energy captured during more productive times into nations'power grids.

There are already solid batteries sold now to store energy from solar panels. They're mostly used in single homes however.

As solar facilities get larger solid batteries get more expensive and less efficient compared to how much energy the whole facility makes.

The MIT team thinks an all-liquid battery filled with searingly hot molten metals might be a good alternative.

Liquid batteries may be easier (and thus cheaper) to manufacture in larger sizes and they're expected to last longer than solid ones.

The team previously made a prototype all-liquid battery filled with magnesium and an element called antimony.

With this latest version the team has made a battery with lithium and antimony mixed with lead.

Plus the battery can be kept at lower temperatures. It works at 450 degrees Celsius versus 700 degrees Celsius.

and discharging the liquid battery for 1800 hours. From that data it predicts that the battery would lose 15 percent of its capacity after 10 years of daily use.

Engineers have known long about how important storage is to solar and wind energy given their unreliable natures.

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The 60-kw battery sheathed in a bright yellow casing runs down the center of the vehicle

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Motors batteries sensors and electronic control systems located at the ends of the rods can loosen or tighten the tension of the cables.

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#Turning Old Lead Batteries Into New Solar energy Used car batteries can leech chemicals and create lead pollution

Quoting MIT energy professor Angela Belcher a study co-author an MIT press release notes that with time ticking down on lead-acid batteries in favor of lithium ion cells we need to be thinking ahead on handling a looming toxic waste problem:

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quieter direction when it introduced Project Livewire, its first battery-powered bike. The Livewire has a lightweight aluminum frame rather than the classic tubular-steel version,

and adding stability at high speeds. 2) Toyota has donated 208 used Camry Hybrid batteries to Yellowstone national park,

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Autonaut is a solar-and methanol fuel cell-poweredâ autonomous surface vessel. It was developed by MOST (Autonomous Vessels) Ltd

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#Stepping motor with battery-free absolute sensor enables accurate positioning Oriental Motor has developed the Î STEP AZ Series of closed-loop stepping motor & Driver packages

or a limit sensor. ith the majority of stepping motors a backup battery is needed to store position data

and because batteries have limited a life data can't be stored for a long time. But the AZ Series doesn't need a battery

so storing data isn't a concern even if the production equipment is stopped for a long time or the unit is shipped overseas. hat is so special about this new product?

Firstly it enables you to set up an absolute system without the need for a battery.

This feature eliminates the battery replacement cycle for the customer making it possible to achieve a maintenance-free absolute system. y eliminating batteries

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and their battery life only allows for short flights. To increase the range of a small UAV one idea is to pair it with an unmanned ground vehicle (UGV) that can carry it to a site of operation and transport heavier cargo.

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and a battery that allows for at least one hour of operating time. Modules also contain a latch-based connection mechanism that allows them to connect to each other or to connector ports in the environment.

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and walk across our desk using off-the-shelf motors batteries and electronic components? There are multiple ways to keep a cube in its balance

and batteries) and allowed a CAD design of the entire system. Part of this step was the design of a special brake to suddenly stop a momentum wheel to transfer its energy to the entire cube

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and obstacle speed) ten of these sections could be inspected on a single battery charge. Once inspection is complete the data is analysed

and a powerful battery allows for approximately three hours of run time on a single charge.

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Finally a high energy density Lithium-Ion Polymer battery is used to power all the electronics and actuators contained onboard.

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we like to make this system battery-powered. We think that would enable genetically modified foods to be tested while still in the warehouse. i

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or if the battery voltage is too low are implemented also on the FMU. The algorithm is presented in research paper Global Strategy for Tailsitter Hover Control submitted to International Symposium on Robotics Research (ISRR), 2015.

Pixhawk PX4 Flight Management Unit Battery: Thunder Power RC G6 Pro Lite 25c Lipo 350mah 2s Motors:

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The battery-powered drone has a 10-foot (3-meter) wingspan, 10 electric motors (eight on the wings,

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Researchers at the Fraunhofer Institute for Wind energy and Energy system Technology IWES in Kassel, Germany, have developed a wireless charger system that not only recharges a battery but also feeds excess energy back into the electrical grid.

However, unlike other options, this coil system from Fraunhofer Institute can also discharge the electricity stored in a vehicle battery

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#Better Batteries Through Mushroom Technology Mushrooms never cease to amaze. Theye one of the weirdest organisms on the planet,

Riverside Bourns College of Engineering have found yet another use for mushrooms in batteries. The UC research team has developed a new kind of lithium-ion battery anode using portobello mushrooms,

which could eventually replace the industry standard of synthetic graphite. Besides being less expensive and eco-friendlier

Wee likely to be using a lot more batteries in coming years, particularly in consumer electronics and electric vehicles.

which can improve battery performance. But even better, according to the UC team, mushroom anodes could actually result in batteries that increase in efficiency over time, due to the organic material high potassium salt content. ith battery materials like this,

future cell phones may see an increase in run time after many uses, rather than a decrease,

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the researchers unveil how one of a battery of chemical warfare agents used by the immune system to fight off infection can itself create DNA mutations that lead to cancer.

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Research could usher in next generation of batteries, fuel cells The research, which is published in the journal Nature Communications,

and is currently in use as a solid oxide fuel cell electrolyte. Through the use of additives and a"smart"chemical reaction, they demonstrated a greatly enhanced conductivity in GDC.

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#Insights into potential substitutes for costly platinum in fuel cell catalysts Replacing inefficient and polluting combustion engines with fuel cells is not currently feasible

The implications of this new preparation technique go far beyond fuel cells. It may be used to create alloy nanomaterials for solar cells, heterogeneous catalysts for a variety of chemical reactions, and energy storage devices."

"The researchers are now exploring different metal combinations with various platinum ratios to get the desired characteristics for fuel cell catalysts.

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Nayar notes that the image sensor could use a rechargeable battery and charge it via its harvesting capability:"

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the researchers unveil how one of a battery of chemical warfare agents used by the immune system to fight off infection can itself create DNA mutations that lead to cancer.

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#Aluminum olk-and-Shellnanoparticle Boosts Capacity and Power of Lithium-ion Batteries One big problem faced by electrodes in rechargeable batteries,

degrading the battery performance over time. Now a team of researchers at MIT and Tsinghua University in China has found a novel way around that problem:

and provide a dramatic boost in the battery capacity and power. The new findings, which use aluminum as the key material for the lithium-ion battery negative electrode,

or anode, are reported in the journal Nature Communications, in a paper by MIT professor Ju Li and six others.

Most present lithium-ion batteries the most widely used form of rechargeable batteries use anodes made of graphite, a form of carbon.

As a result, previous attempts to develop an aluminum electrode for lithium-ion batteries had failed.

hat separates the aluminum from the liquid electrolytebetween the battery two electrodes. The shell does not expand

For applications that require a high power-and energy density battery, he says, t probably the best anode material available.

There is much work in the battery field that uses omplicated synthesis with sophisticated facilities, Lou adds,

but such systems re unlikely to have impact for real batteries. Simple things make real impact in the battery field.

The research team included Sa Li, Yu Cheng Zhao, and Chang An Wang of Tsinghua University in Beijing and Junjie Niu,

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#Solid electrolyte Paves the Way for Rechargeable batteries with Almost Indefinite Lifetimes Engineers from MIT and Samsung have developed an approach for a solid electrolyte that could greatly improve both battery lifetime and safety,

while providing a significant boost in the amount of power stored in a given space.

or an electric car youl find that batteries take up most of the space inside. Indeed, the recent evolution of batteries has made it possible to pack ample power in small places.

But people still always want their devices to last even longer or go further on a charge,

so researchers work night and day to boost the power a given size battery can hold. Rare, but widely publicized, incidents of overheating or combustion in lithium-ion batteries have highlighted also the importance of safety in battery technology.

Now researchers at MIT and Samsung, and in California and Maryland, have developed a new approach to one of the three basic components of batteries, the electrolyte.

The new findings are based on the idea that a solid electrolyte, rather than the liquid used in today most common rechargeables,

They describe a new approach to the development of solid-state electrolytes that could simultaneously address the greatest challenges associated with improving lithium-ion batteries,

The electrolyte in such batteries typically a liquid organic solvent whose function is to transport charged particles from one of a battery two electrodes to the other during charging

but this group is the first to show that this can be done in a formulation that fully meets the needs of battery applications.

creating lmost a perfect battery, solving most of the remaining issuesin battery lifetime, safety, and cost.

Costs have already been coming down steadily, he says. But as for safety, replacing the electrolyte would be the key

The lithium itself is not flammable in the state it in in these batteries. With a solid electrolyte there no safety problem you could throw it against the wall,

ith a solid-state electrolyte, there virtually no degradation reactions leftmeaning such batteries could last through undreds of thousands of cycles. he key to making this feasible,

was finding solid materials that could conduct ions fast enough to be useful in a battery. here was a view that solids cannot conduct fast enough,

That alliance also has led to important advances in the use of quantum dot materials to create highly efficient solar cells and sodium batteries,

While conventional lithium-ion batteries do not perform well in extreme cold, and need to be preheated at temperatures below roughly minus 20 degrees Fahrenheit,

Such batteries provide a 20 to 30 percent improvement in power density with a corresponding increase in how long a battery of a given size could power a phone, a computer,

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either shiver or drain their car already stressed-out batteries. n the most unfavorable case,

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longer battery life or lower power consumption in data centers to reduce their costs and greenhouse gas emissions, and ultra-sensitive and low-power biosensors and gas sensors to enhance the Internet of things.

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leading to longer battery lives and lower electricity bills, but developing the kind of bright deep blue PHOLEDS needed for video displays has proven challenging.

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that would use contextual information including your current time zone, ringer silence status, battery life, location and cell network strength to automatically determine whether youe available for a call and display that information to friends.

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This is not an extra battery; it simply works passively. Essentially it is harvesting back the ambient RF energy already being produced by the phone.

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The robots are powered battery so they can go back to a charging dock (similar to a Roomba)

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#First aqueous solar flow battery designed WASHINGTON: Researchers have designed the first aqueous flow battery with solar capability that can achieve a 20 per cent energy savings over traditional batteries.

Researchers at The Ohio State university had developed the world's first solar air battery last Fall in a new study,

the researchers have reported that their patent-pending design -which combines a solar cell and a battery into a single device-now achieves a 20 per cent energy savings over traditional lithium-iodine batteries.

The 20 per cent comes from sunlight, which is captured by a unique solar panel on top of the battery,

said Yiying Wu, professor at Ohio State. The solar panel is a solid sheet, rather than a mesh as in the previous design.

Another key difference comes from the use of a water-based electrolyte inside the battery.

the new design belongs to an emerging class of batteries called aqueous flow batteries.""The truly important innovation here is that we've successfully demonstrated aqueous flow inside our solar battery,

"Wu said. As such, it is the first aqueous flow battery with solar capability. Or, as Wu and his team have dubbed it, the first"aqueous solar flow battery."

"It's also totally compatible with current battery technology, very easy to integrate with existing technology,

environmentally friendly and easy to maintain, "he added. Researchers around the world are working to develop aqueous flow batteries

because they could theoretically provide affordable power grid-level energy storage someday. The solar flow battery could thus bridge a gap between today's energy grid and sources of renewable energy."

"This solar flow battery design can potentially be applied for grid-scale solar energy conversion and storage, as well as producing'electrolyte fuels'that might be used to power future electric vehicles,

"said Mingzhe Yu, lead author of the paper and a doctoral student at Ohio State. The new solid solar panel is called a dye-sensitised solar cell,

because the researchers use a red dye to tune the wavelength of light it captures

Those electrons then supplement the voltage stored in the lithium-anode portion of the solar battery.

To carry electrons from the solar cell into the battery a liquid electrolyte is required, which is typically part salt, part solvent.

In tests, the researchers compared the solar flow battery's performance to that of a typical lithium-iodine battery.

They charged and discharged the batteries 25 times. Each time, both batteries discharged around 3. 3 volts.

The difference was that the solar flow battery could produce the same output with less charging.

The study was published in Journal of the American Chemical Society. WASHINGTON: Researchers have designed the first aqueous flow battery with solar capability that can achieve a 20 per cent energy savings over traditional batteries.