theoretical work indicates that boron-doped graphene could lead to improved lithium-ion batteries and field-effect transistors, the authors report t
#New low-cost battery could help store renewable energy Wind and solar energy projects are growing at a respectable clip.
Now researchers are developing a new battery that could bring the price of storage to more affordable levels.
They report their new battery that uses low-cost materials sodium and magnesium in ACS journal Chemistry of Materials("Efficient and Inexpensive Sodiummagnesium Hybrid Battery".
"A hybrid intercalation battery based on a sodium/magnesium (Na/Mg) dual salt electrolyte, metallic magnesium anode,
ACS) Today, lithium-ion batteries are the storage technology of choice for many applications, from electric cars to smartphones.
The researchers started with magnesium as the batterys safe inexpensive and high-energy density anode material and paired it with pyrite,
Testing showed that the resulting devices energy density was close to that of lithium-ion batteries. It could get an additional two-to threefold boost with further development of magnesium electrolytes.
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.
The new approach combines a battery-powered wearable bionic suit that enables people to move their legs in a step-like fashion,
A protein embedded in the surface of mitochondria the energy-producing batteries of living cells opens the door to cell death,
battery and display technology are all going to receive big overhauls. What likely to be includedthe big advancement with the iphone 6s we are likely to see is Force Touch screen technology reports Business Insider.
#Aluminum-Ion Batteries Are Flexible, Fast-Charging, And Won't Catch on Fire Almost all of the electronic devices that we carry around with us all day now rely on one key,
the lithium-ion battery. A mainstay of rechargeable power for the last couple decades, this battery technology has gotten only minor refinements.
But a substantial improvement in stored power may be in the offing, thanks to researchers at Stanford university,
who have developed a new battery technology based on aluminum. This isn't the first time that aluminum-based batteries have been investigated.
The material has a number of advantages over lithium: it's flexible, allowing it to be folded
you can even drill a hole through the battery and it will continue to work.
compromise a lithium-ion battery and you'll likely see some sparks or flame, but the materials in this new battery are all non-reactive.
And, aluminum is cheaper than lithium, too. All good things, so why haven't we seen more aluminum batteries?
The catch to date has been finding another material to work with aluminum in creating energy. The Stanford team ended up using our old friend graphene to play the cathode to aluminum's anode.
000 you'd likely get out of a Li-ion battery--aluminum-ion's woes aren't all behind it.
The voltage provided by an aluminum-ion battery is only about half of that what you'd get from a lithium-ion cell.
the overall power density--the amount of juice you can store in a battery vis-a-vis its size--more closely resembles the large lead-acid battery you'd find in your car.
So aluminum-ion batteries still aren't quite ready for primetime, but you can bet that electronics manufacturers, makers of electric cars,
Meanwhile, researchers are working to enhance the performance of lithium-ion batteries using materials like carbon nanotubes,
and metal-air batteries have their own downsides as well. Should scientists be able to increase the power and energy density of aluminum-ion batteries
its speed of charging, lack of volatility, and cheap production costs could make it the one to beat t
#A 3d printed, Battery-Powered Rocket engine Nothing demonstrates engineering prowess and technical knowhow quite like rocket science.
Today at the Space Symposium in Colorado, the company unveiled its brand-new engine, named Rutherford--the first-ever battery-powered rocket engine.
Instead of running on liquid propellant, the pumps are powered by electric motors with lithium polymer batteries. This eliminates the need for extra spaghetti tubes and valves,
Its really only the advancement in battery technology that has enabled us to go to electric turbopumps, Beck says.
Rutherford is the first to incorporate battery power in its engine. If that wasn't unique enough,
The battery (which lasts 4-6 hours) sits above the top of the lenses, giving the 4. 5-ounce glasses a bulky look.
The group came up with a method that uses solar panels to charge a bank of batteries.
The batteries then power a system that removes salt from the water through electrodialysis. On the most basic level, that means that dissolved salt particles,
Advances in cellular technology, like miniaturized powerful batteries, cheaper smaller cameras, and sensors like accelerometers have all found their way from our pockets to the skies.
The liquid metal could be used to build self contained pumps that don't require outside power or batteries, saving on weight and complexity for items like night vision and laser cooling pumps.
14 grams Battery life: 8 hours Price: $170 Problem: Hurtling fastball, after curveball, after slider puts incredible strain on a pitcher arm,
but powering sensors--even really efficient sensors--requires some form of electric charging or battery replacement.
replacing batteries isn always the easiest task for humans, so that might be a future job for drones.
The 160-pound robot is powered battery and remotely controlled, with the operator as far as 1, 600 feet away.
and battery that should last up to two days, and recharges using a micro USB cable.
In fuel cells, electricity could be generated using hydrogen (and oxygen. Hydrogen which is used currently in the industry to manufacture many important chemicals could also be made available in a more sustainable fashion.
a process required for fuel cells. The latest discovery detailed in Nature Communications, is a significant step toward lower-cost catalysts for energy production,
#New design points a path to the ltimatebattery Scientists have developed a working laboratory demonstrator of a lithium-oxygen battery
or lithium-air, batteries have been touted as the'ultimate'battery due to their theoretical energy density, which is ten times that of a lithium-ion battery.
Such a high energy density would be comparable to that of gasoline -and would enable an electric car with a battery that is a fifth the cost and a fifth the weight of those currently on the market to drive from London to Edinburgh on a single charge.
However, as is the case with other next-generation batteries, there are several practical challenges that need to be addressed before lithium-air batteries become a viable alternative to gasoline.
Now, researchers from the Univ. of Cambridge have demonstrated how some of these obstacles may be developed overcome,
and a lab-based demonstrator of a lithium-oxygen battery which has increased higher capacity energy efficiency and improved stability over previous attempts.
Their demonstrator relies on a highly porous, 'fluffy'carbon electrode made from graphene (comprising one-atom-thick sheets of carbon atoms),
and additives that alter the chemical reactions at work in the battery, making it more stable and more efficient.
the researchers caution that a practical lithium-air battery still remains at least a decade away."
Many of the technologies we use every day have been getting smaller, faster and cheaper each yearith the notable exception of batteries.
the challenges associated with making a better battery are holding back the widespread adoption of two major clean technologies:
"In their simplest form, batteries are made of three components: a positive electrode, a negative electrode and an electrolyte,''said Dr. Tao Liu, also from the Dept. of Chemistry,
In the lithium-ion (Li-ion) batteries we use in our laptops and smartphones, the negative electrode is made of graphite (a form of carbon),
The action of the battery depends on the movement of lithium ions between the electrodes. Li-ion batteries are light
but their capacity deteriorates with age, and their relatively low energy densities mean that they need to be recharged frequently.
Over the past decade, researchers have been developing various alternatives to Li-ion batteries, and lithium-air batteries are considered the ultimate in next-generation energy storage, because of their extremely high energy density.
However, previous attempts at working demonstrators have had low efficiency, poor rate performance, unwanted chemical reactions, and can only be cycled in pure oxygen.
What Liu, Grey and their colleagues have developed uses a very different chemistry than earlier attempts at a non-aqueous lithium-air battery
With the addition of water and the use of lithium iodide as a'mediator',their battery showed far less of the chemical reactions
A small voltage gap equals a more efficient batteryrevious versions of a lithium-air battery have managed only to get the gap down to 0. 5 to 1. 0 V
whereas 0. 2 V is closer to that of a Li-ion battery, and equates to an energy efficiency of 93%.
which can cause batteries to explode if they grow too much and short-circuit the battery. Additionally, the demonstrator can only be cycled in pure oxygen,
while the air around us also contains carbon dioxide, nitrogen and moisture, all of which are generally harmful to the metal electrode."
According to Auyeung, thermochemical storage resembles a battery, in which chemical bonds are used to store and release energyut in this case,
'Twenty-six-year-old Kuniako Sato and his team at Cocoa Motors recently unveiled the lithium battery-powered"Walkcar"transporter,
#New solar battery outperforms conventional lithium-iodine batteries By combining a solar cell and a battery into a single device,
researchers in the US have made the first truly viable solar batteries. Not only can this battery compete with regular lithium-iodine batteries,
it can actually outperform them, producing the same output with less charging, achieving an energy saving of 20 percent.
which is harvested by a flat solar panel on top of the battery. Below, the researchers have installed a new type of electrolyte that replaces the lithium-cobalt oxide or lithium iron phosphate of regular battery electrolytes with water."
"The truly important innovation here is that we've successfully demonstrated aqueous flow inside our solar battery,"one of the team,
Yiying Wu from Ohio State university, said in a press release.""It's also totally compatible with current battery technology,
very easy to integrate with existing technology, environmentally friendly and easy to maintain.""The team is the same one that debuted the world first solar air battery last year,
and theye now improved on the design, by making the solar panel a solid sheet rather than a mesh,
Called an aqueous solar flow battery, this world-first design could be the basis of an entirely new class of batteries,
with or without the solar component installed.""In the original version, the researchers used a more conventional liquid electrolyte consisting of part salt
According to the press release, these electrons are used then to supplement the voltage stored in the lithium-anode portion of the solar battery.
When they tested their solar batteries against conventional lithium-iodine batteries, they charged and discharged them 25 times to see how much electricity they would discharge each round.
Each time, both batteries discharged around 3. 3 volts. But as Lavars reports at Gizmag while the typical battery needed to be charged to 3. 6 volts to discharge 3. 3 volts,
the solar battery only needed to be charged to 2. 9 volts, while the solar panel made up the other 20 percent.
The team now wants to work on increasing this percentage, and are working towards 100 percent energy savings,
which would make it a fully solar-chargeable battery. But as they are, these solar batteries are already looking pretty damn practical."
"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,"one of the team,
doctoral student Mingzhe Yu, said in the press release. The design is now patent pending, and the team reports the results of their testing in the Journal of the American Chemical Society S
The device is powered by lithium batteries and comes in both indoor and outdoor models. It only weighs between 2 to 3 kg (4. 4 to 6. 6 pounds) depending on the model
The tests come after a feasibility study looking into how dynamic battery charging could solve the problem of electric vehicles running out of juice,
with hydrogen suitable for powering all kinds of technologies. ydrogen can be used to generate electricity directly in fuel cells,
said Macfarlane. ars driven by fuel cell electric engines are becoming available from a number of car manufacturers.
meaning they only have very small batteries in the first place. By sending data via magnetic fields directly through our bodies,
#This transparent lithium-ion battery charges itself with sunlight Researchers in Japan have invented a rechargeable lithium-ion battery that can charge itself using sunlight-no solar cell required.
and the team behind it hopes to see the technology integrated into a mart windowthat can act as both a large rechargeable battery and a photovoltaic cell all at once.
Theye since been working towards a battery-integrated window that can store energy from sunlight while also changing its structure automatically to provide a tint during the day.
when the battery is exposed to sunlight, it becomes tinted to about 30 percent light transmittance,
Back in 2013, the main component of the electrolyte for the battery's positive electrode was lithium iron phosphate,
of which are used commonly in rechargeable lithium-ion batteries. For the prototype that was put on display in Tokyo last month,
the team reports an output from the battery of 3. 6 volts, and say they managed to successfully complete 20 charge/discharge cycles.
another possibility for the technology is self-charging smartphone screens made from transparent lithium-ion batteries.
when a US ARMY vet used the battery-powered prosthetic to scale a rock-climbing wall, using nothing but his brain power.
Now the team behind the technology has demonstrated how the battery-powered device can impart the feeling of touch on top of grip, movement,
and as hydrogen storage materials in next generation batteries,"he added. Last year, scientists used metallic glass to create an iphone case that was 50 times harder than plastic.
#Researchers create lithium-air battery that could be 10x more powerful than lithium-ion A new lithium-air battery created by researchers at the University of Cambridge points the way to the ultimate battery packs of the future,
the new test battery could prove an important stepping stone in the development of this essential technology.
If you're getting tired of announcements about breakthroughs in battery technology, that's understandable: as they're so essential to modern life,
Any new battery has to improve on what we already have, be safe to use in consumer gadgets,
and that's why many'miracle'batteries have fallen since by the wayside once the initial lab work is done,
not just for smartphones but for electric cars and solar power, where batteries are essential for storing energy to use
The idea of a lithium-air or lithium-oxygen battery isn't new scientists have known for a while that these types of batteries can hold up to 10 times the charge of today's lithium-ion packs (imagine not having to charge your phone for a whole week.
The new battery from the Cambridge university lab has a higher capacity, better efficiency and improved stability compared with previous attempts this stability,
crucial if we're to put these batteries into millions of cars and smartphones, was reached by using a'fluffy'carbon electrode made from graphene.
What's more, by changing the chemical mix from earlier versions of lithium-air batteries,
the researchers were able to prevent the battery from degrading significantly over time.""What we've achieved is a significant advance for this technology
The demonstration battery produced by the scientists still needs pure oxygen in order to charge not something many of us have a ready supply of
and there's still the risk of the battery exploding due to the dendrites (spindly lithium metal fibres) created during the charging process.
#Researchers discover N-type polymer for fast organic battery The discovery relies upon a"conjugated redox polymer"design with a naphthalene-bithiophene polymer,
including lithium batteries. Ultimately Yao said, it could translate into less expensive consumer devices and even less expensive electric cars.
Yanliang Liang, a research associate at UH and first author on the paper, said researchers aren't trying to compete directly with conventional lithium-ion batteries."
Liang said conventional inorganic metal-based batteries and energy storage devices are expensive partly because the materials used to make them,
and see widespread applications, especially in energy-related ones such as batteries, supercapacitors and thermoelectrics.""The basic polymer used in the work was discovered in 2009;
allowing a battery to be charged 80 percent within 6 seconds and fully charged in another 18 seconds,
Conventional inorganic batteries still are capable of holding more energy than the organic battery, and Yao said work will continue to improve the storage capacity of the material.
Distribution of the hydrogen to users of fuel cell vehicles is another key challenge. Rollin's model increased reaction rates by threefold, decreasing the required facility size to about the size of a gas station,
#First metal-free catalyst created for rechargeable zinc-air batteries Zinc-air batteries are expected to be safer, lighter, cheaper and more powerful and durable than lithium-ion batteries common in mobile phones and laptops and increasingly used in hybrid and electric cars.
This carbon-based catalyst works efficiently in both the oxygen reduction reaction and oxygen evolution reaction, making the battery rechargeable.
The catalyst is also inexpensive, easy to make and more ecological than most of the alternative materials.
"With batteries, cost is always an issue and metal-free catalysts can reduce cost while improving performance,"said Liming Dai,
"These batteries could be used in computers, data stations, for lighting--anyplace batteries are used now.""Dai worked with Case Western Reserve postdoctor Jintao Zhang,
who performed experimental work; and North Texas University's Zhenhai Xia, professor of materials science and engineering, and Zhenghang Zhao, a Phd student, who performed theoretical simulations.
Zinc-air batteries mix oxygen from the air with zinc in a liquid alkaline electrolyte to create a charge.
The batteries can have three times the energy density of lithium-ion batteries, but have been sluggish. To counter that problem,
or foam, with pores ranging from 2 to 50 nanometers in diameter, providing enormous surface area and room for the battery electrolyte to diffuse.
or non-rechargeable battery and a rechargeable battery matched or surpassed that of expensive platinum/metal oxide-based catalysts.
or better than more expensive metal-based catalysts used in alkaline and acidic fuel cells and in dye-sensitized solar cells."
"The device the team has developed--called the D3 (digital diffraction diagnosis) system--features an imaging module with a battery-powered LED light clipped onto a standard smartphone that records high-resolution imaging data with its camera.
The silicon nanoparticles it produces may even enable lithium battery capacity to be boosted by a factor of 10.
#Better battery imaging paves way for renewable energy future"Iron fluoride has the potential to triple the amount of energy a conventional lithium-ion battery can store,
There, they collected chemical maps from actual coin cell batteries filled with iron fluoride during battery cycling to determine how well they perform.
"In the past, we weren't able to truly understand what is happening to iron fluoride during battery reactions
because other battery components were getting in the way of getting a precise image, "says Li.
Thus far, using iron fluoride in rechargeable lithium ion batteries has presented scientists with two challenges. The first is that it doesn't recharge very well in its current form."
"Consumers would rather have a battery that charges consistently through hundreds of charges.""By examining iron fluoride transformation in batteries at the nanoscale,
Jin and Li's new X-ray imaging method pinpoints each individual reaction to understand why capacity decay may be occurring."
The second challenge is that iron fluoride battery materials don't discharge as much energy as they take in, reducing energy efficiency.
"If we can maximize the cycling performance and efficiency of these low-cost and abundant iron fluoride lithium ion battery materials,
The synthesis of the battery materials in Jin's lab was supported by National Science Foundation Division of Materials Research h
#'Yolks'and'shells'improve rechargeable batteries One big problem faced by electrodes in rechargeable batteries, as they go through repeated cycles of charging
degrading the battery's 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's capacity and power. The new findings,
which use aluminum as the key material for the lithium-ion battery's negative electrode,
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.
"Li says,"that separates the aluminum from the liquid electrolyte"between the battery's two electrodes.
For applications that require a high power-and energy density battery, he says, "It's probably the best anode material available."
and tablets, our approach could have a huge impact on energy consumption and battery life, "she noted."
then the battery will last much longer because the display would only draw half as much power as conventional displays."
often for 10 hours or more--the ultra-fast method uses a battery-like design to channel reactive boron into metal surfaces.
Like a battery, the furnace relies on the attraction between positive and negative charges to get boron flowing swiftly toward its destination.
is significant because it represents a new way of combining elemental materials to form the building blocks of energy storage technology--such as batteries, capacitors and supercapacitors,
"We see possible applications in thermoelectrics, batteries, catalysis, solar cells, electronic devices, structural composites and many other fields, enabling a new level of engineering on the atomic scale
Lower power consumption also leads to longer battery life.""A problem with wearable devices like smart watches is that they have short operating times
because they are limited to using small batteries. With this magnetic field human body communication system, we hope to significantly reduce power consumption as well as how frequently users need to recharge their devices,
The new approach combines a battery-powered wearable bionic suit that enables people to move their legs in a step-like fashion,
The discovery could lead to dramatic improvements and addresses one of the biggest challenges in flexible electronics, an industry still in its infancy with applications such as bendable batteries, robotic skins, wearable monitoring devices and sensors,
requiring more power and bigger batteries.""The circuitry ends up requiring a ton of real estate
and bulky batteries,"said Panat. Researchers have experimented with gold, which works better than other materials but is prohibitively expensive,
According to financial reports, the global market for graphene reached $9 million in 2014 with most sales in the semiconductor, electronics, battery, energy,
According to financial reports, the global market for graphene reached $9 million in 2014 with most sales in the semiconductor, electronics, battery, energy,
and faster charging abilities compared to rechargeable batteries. Lightweight and high-power density capacitors are of particular interest for the development of hybrid and electric vehicles.
which are tiny'batteries'in cells that provide energy, play an important role in a number of diseases that affect the nervous system, including Parkinson's.
The SALT lamp which stands for Sustainable Alternative Lighting IS LED an light that makes use of the science behind the Galvanic cell (the basis for batteries) and changes electrolytes to a nontoxic
Aegis says the battery can last for up to 14 hours. The Aegis Pro can also be paired with your phone,
portable battery attached by long wires. The cosmetic effect of the device was often a concern for patients who declined to participate in the trial, noted Schiff,
and being hooked up to a battery about the size of a small laptop computer whenever they want to go out and about.
such as targeting medicines more specifically into cancer cells and driving charge separation potentially for harvesting energy for batteries.
One can imagine in a totally noncellular case that one could potentially harvest this kind of pumping to create things like batteries.
#Electrolyte Genome Could Be Battery Game-Changer A new breakthrough batteryne that has significantly higher energy,
A battery scientist looking for a new electrolyte would specify the desired parameters and properties
dramatically speeding up the discovery timeline. lectrolytes are a stumbling block for many battery technologies, whether the platform is designed for electric vehicles or a flow battery for grid applications,
Persson said. hat we can do is calculate the properties of a large number of molecules
The electrolyte is a chemical substance that carries electrical charge between the battery anode and cathode to charge
not only of these three components but also their interactions with each other. f we can come up with an electrolyte that has a higher electrochemical window for multivalent batteries,
the Electrolyte Genome offers two other significant advantages to battery scientists. The first is that it could generate novel ideas. hile there are some amazing organic chemists out there,
They had another success screening molecules for redox capabilities for flow batteries for fellow Berkeley Lab scientist Brett Helms. e basically gave us a chemical space of organogelator molecules and asked
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