by showing that potassium can work with graphite in a potassium-ion battery a discovery that could pose a challenge and sustainable alternative to the widely-used lithium-ion battery.
Lithium-ion batteries are ubiquitous in devices all over the world, ranging from cell phones to laptop computers and electric cars.
A potassium-ion battery has been shown to be possible. And the last time this possibility was explored was
as the charge carrier whose ions migrate into the graphite and create an electrical current.
Right now, batteries based on this approach don have performance that equals those of lithium-ion batteries,
he said. t safe to say that the energy density of a potassium-ion battery may never exceed that of lithium-ion batteries,
these channels act like a doorman to regulate the entry of calcium ions in the nerve cells. t has also been known for a long time that following transient severe brain injury and prior to an initial spontaneous epileptic seizure, the concentration of free zinc ions
If the number of zinc ions increases following transient severe brain damage, these ions dock in greater numbers onto a switch, the so-called metal-regulatory transcription factor 1 (MTF1.
If the zinc ions or the transcription factor MTF1 were inhibited specifically in the brain, it is possible that the development of a seizure disorder could be prevented. owever,
Silver ions are released gradually from the tablet, killing pathogens by penetrating cell membranes and disrupting cell division.
The Illinois researchers and their collaborators addressed these challenges by attaching positively charged ions to the backbone of the spiral,
the team enlisted the help of co-authors postdoc Yi Shi and Brian Chait, the Camille and Henry Dreyfus Professor at Rockefeller and head of the Laboratory of Mass Spectrometry and Gaseous Ion Chemistry.
#Algae inspiration could boost your phone's battery Materials engineers trying to work out a way of boosting the performance of lithium-ion batteries have hit upon an unlikely inspiration-algae from a local pond.
When compared to normal lithium-ion cells, the new batteries showed high reversible capacity, good cycling stability and high-rate performance."
the researchers found the tantalum oxide gradually loses oxygen ions, changing from an oxygen-rich, nanoporous semiconductor at the top, to oxygen-poor at the bottom.
the team said it was also safer than lithium-ion batteries as it was less prone to catching fire and more environmentally friendly than alkaline models such as AA and AAA.
and lithium-ion batteries, which occasionally burst into flames. Our new battery won catch fire, even if you drill through it. illions of consumers use 1. 5-volt AA and AAA BATTERIES.
while a typical lithium-ion battery lasts about 1, 000 cycles. his was the first time an ultra-fast aluminium-ion battery was constructed with stability over thousands of cycles,
the report authors wrote. Dai added that lithium batteries could o off in an unpredictable mannerand cited a ban by US airlines Delta
the lithium-ion batteries are designed to capture and store up to 10kwh of energy from wind or solar panel.
The Nevada facility will be the largest producer of lithium-ion batteries in the world and it is hoped its mass-production scale will help to bring down costs even further.
Sporting higher energy density than lithium-ion we may even see batteries made with this material.
Performance of sol-gel thin film electrodes at Georgia Tech's laboratories has exceeded all existing commercial electrolytic capacitors and thin-film lithium-ion batteries.
#Smart lithium-ion battery warns of fire hazard Stanford university scientists have developed a smart lithium-ion battery that gives ample warning before it overheats
The new technology is designed for conventional lithium-ion batteries now used in billions of cellphones laptops and other electronic devices as well as a growing number of cars and airplanes.
Lowering the oddsa series of well-publicized incidents in recent years has raised concern over the safety of lithium-ion batteries.
In 2006 the Sony Corporation recalled millions of lithium-ion batteries after reports of more than a dozen consumer-laptop fires.
A typical lithium-ion battery consists of two tightly packed electrodes--a carbon anode and a lithium metal-oxide cathode--with an ultrathin polymer separator in between.
and ignite the flammable electrolyte solution that shuttles lithium ions back and forth. The separator is made of the same material used in plastic bottles said graduate student Denys Zhuo co-lead author of the study.
so that lithium ions can flow between the electrodes as the battery charges and discharges. Manufacturing defects such as particles of metal and dust can pierce the separator
Overcharging causes lithium ions to get stuck on the anode and pile up forming chains of lithium metal called dendrites Cui explained.
so it has negligible effect on the flow of lithium ions between the cathode and the anode.
Most lithium-ion batteries are used in small electronic devices. But as the electric vehicle market expands
Some electric cars today are equipped with thousands of lithium-ion battery cells. If one battery explodes the whole pack can potentially explode.
This next generation of lithium-ion batteries will enable electric vehicles to charge 20 times faster than the current technology.
NTU Singapore's scientists replaced the traditional graphite used for the anode (negative pole) in lithium-ion batteries with a new gel material made from titanium dioxide an abundant cheap and safe material found in soil.
NTU professor Rachid Yazami who was the co-inventor of the lithium-graphite anode 34 years ago that is used in most lithium-ion batteries today said Prof Chen's invention is the next
While the cost of lithium-ion batteries has been reduced significantly and its performance improved since Sony commercialised it in 1991 the market is fast expanding towards new applications in electric mobility
since our batteries last ten times longer than the current generation of lithium-ion batteries The long-life of the new battery also means drivers save on the cost of a battery replacement
Easy to manufactureaccording to Frost & Sullivan a leading growth-consulting firm the global market of rechargeable lithium-ion batteries is projected to be worth US$23. 4 billion in 2016.
Lithium-ion batteries usually use additives to bind the electrodes to the anode which affects the speed in
which electrons and ions can transfer in and out of the batteries. However Prof Chen's new cross-linked titanium dioxide nanotube-based electrodes eliminate the need for these additives
Last year Prof Yazami was awarded the Draper Prize by the National Academy of Engineering for his ground-breaking work in developing the lithium-ion battery with three other scientists.
the team produced'mass-resolved images'that reconstructed the distribution of gaseous secondary ions in the plume.
The mass-resolved images revealed that Mg ions were dispersed evenly at high concentrations inside the plume.
the population of Al ions rises in the middle of the near-field region close to the laser firing point.
Velásquez-García and his colleagues use a technique called deep reactive-ion etching. On either face of a silicon wafer, they etch dense arrays of tiny rectangular columns tens of micrometers across
and an ion crystal. The optical lattice was generated using two laser beams traveling in opposite directions,
an ion crystal essentially, a grid of charged atoms in order to study friction effects, atom by atom.
To generate the ion crystal, the group used light to ionize, or charge, neutral ytterbium atoms emerging from a small heated oven,
and pull the ion crystal across the lattice, as well as to stretch and squeeze the ion crystal,
much like an accordion, altering the spacing between its atoms. An earthquake and a caterpillarin general, the researchers found that
when atoms in the ion crystal were spaced regularly, at intervals that matched the spacing of the optical lattice, the two surfaces experienced maximum friction,
when the ion crystal as a whole is dragged across the optical lattice, the atoms first tend to stick in the lattice troughs,
If enough force is applied, the ion crystal suddenly slips, as the atoms collectively jump to the next trough. t like an earthquake,
and squeeze the ion crystal to manipulate the arrangement of atoms, and discovered that if the atom spacing is mismatched from that of the optical lattice,
as the ion crystal is pulled across the optical lattice, one atom may slide down a peak a bit,
uning friction atom-by-atom in an ion-crystal simulator, Science 5 june 2015: Vol. 348 no. 6239 pp. 1115-1118;
#Half Price Lithium-ion Batteries With Improved Performance and Recyclability MIT spinoff company 24m has reinvented the manufacturing process for lithium-ion batteries to reduce cost,
An advanced manufacturing approach for lithium-ion batteries, developed by researchers at MIT and at a spinoff company called 24m,
The existing process for manufacturing lithium-ion batteries, he says, has changed hardly in the two decades
for high-energy density devices such as lithium-ion batteries, the extra complexity and components of a flow system would add unnecessary extra cost.
e realized that a better way to make use of this flowable electrode technology was to reinvent the lithium ion manufacturing process. nstead of the standard method of applying liquid coatings to a roll of backing material,
While conventional lithium-ion batteries are composed of brittle electrodes that can crack under stress the new formulation produces battery cells that can be bent,
With traditional lithium-ion production plants must be built at large scale from the beginning in order to keep down unit costs,
and go-no go decisions. iswanathan adds that 24m new battery design ould do the same sort of disruption to lithium ion batteries manufacturing as
Mass-Selected Photoelectron Circular Dichroism (MS-PECD) uses circularly polarised light produced by a laser to ionise the molecules using a couple of photons to knock an electron out of the chiral molecule to leave a positively charged ion behind.
which a small electrical potential is applied to the negatively charged electron and positively charged ion which draws them out in opposite directions.
The scientists look for simultaneous detection of the ion and electron those reaching the detectors simultaneously are very likely to have come from the same molecule.
The mass of the ion can be measured and matched with its partner electron. By combining these methods,
The research, Enantiomer Specific Analysis of Multi-Component Mixtures by Correlated Electron Imaging-Ion Mass Spectrometry
and Ion Torrent PGM (Life Technologies) are sized laser-printer and offer modest setup and running costs.
The Ion Torrent PGM had the most throughput per hour. The 454 GS Junior generated the longest reads
#Porous Silicon Battery electrodes from Reeds Natural structures in reed leaves could find use in advanced lithium-ion batteries,
Silicon-based materials can theoretically store more than 10 times charge than the carbon-based materials most commonly used in the anodes of commercial lithium-ion batteries,
There even a built-in 37-watt lithium-ion battery and a USB plug so you can power your smartphone up to six times while on the go.
Aquion batteries use sodium ions from saltwater as their electrolyte. Electrical current moves through this brackish liquid from positive electrodes based on manganese oxide to negative ones based on carbon.
and which also have the potential to store much more energy than conventional lithium-ion batteries (see onger-Lasting Battery Is Being tested for Wearable devices.
In solid-state batteries the liquid electrolytes normally used in conventional lithium-ion batteries are replaced with solid ones
known as an ion accelerator, can make fine sheets of other costly materials, so it could also lead to better and cheaper electronics and solar cells.
implanting the ions to a depth of 26 micrometers. The wafer can then be removed and heated up so that the hydrogen ions form hydrogen gas,
The proposed plant would have more lithium-ion battery capacity than all current factories combined (see oes Musk Gigafactory Make sense?
Lithium-ion batteries are just about everywherehey power almost all smartphones, tablets, and laptops. Yet Elon musk, CEO of Tesla motors, says he intends to build a factory in the United states three years from
now that will more than double the world total lithium-ion battery production. The plan is still in its early stages,
when copper ions generate free radicals from water and oxygen, and sometimes from certain sulfur-containing amino acids.
At the heart of the new technology is a piece of nano-engineered silica glass with ions that fluoresce in infrared light when a low power laser light hits them.
At the heart of the new technology is a piece of nano-engineered silica glass with ions that fluoresce in infrared light when a low power laser light hits them.
and a suitable pore architecture that allows for the rapid movement of ions from the electrolyte solution to the carbon surface."
"We can easily design electrodes with very small pores that allow lithium ions to diffuse through the carbon
Friction was created at the nanoscale by designing two surfaces, an optical lattice and an ion crystal,
The ion crystal is charged a atomic grid created by Vuletic to analyze the effects of friction, atom by atom.
and push the ion crystal over the lattice, and to squeeze and stretch the ion crystal, in a motion similar to an accordion,
to modify the atomic spacing. They observed that the two surfaces underwent maximum friction, similar to two complementary Lego bricks,
when atoms in the ion crystal were spaced normally at intervals equaling the optical lattice spacing.
if complete ion crystal is shifted across the optical lattice, initially the atoms tend to adhere to the troughs of the lattice.
However, when a certain level of force is used, the ion crystal abruptly slips, as the atoms jointly move to the next trough. t like an earthquake,
and squeezing the ion crystal in order to influence the arrangement of atoms. They found that if the atom spacing did not match that of the optical lattice,
when the ion crystal is transferred across the optical lattice, one atom may move down a peak providing a little stress for another atom to move up a trough,
the researchers were able to visualise how ions move around in a supercapacitor. They found that
electrolyte ions are stored in the anode. As the battery discharges, electrolyte ions leave the anode
and move across the battery to chemically react with the cathode. The electrons necessary for this reaction travel through the external circuit,
instead, positive and negative electrolyte ions simply tickto the surfaces of the electrodes when the supercapacitor is being charged.
the ions can easily opoff the surface and move back into the electrolyte. The reason why supercapacitors charge
and discharge so much faster is that the tickingand oppingprocesses happen much faster than the chemical reactions at work in a battery. o increase the area for ions to stick to,
like a carbon sponge, said Griffin. ut it hard to know what the ions are doing inside the holes within the electrode we don know exactly what happens
and the positive ions are attracted to the surface as the supercapacitor charges. But in the positive electrode, an ion xchangehappens,
as negative ions are attracted to the surface, while at the same time, positive ions are repelled away from the surface.
Additionally, the EQCM was used to detect tiny changes in the weight of the electrode as ions enter and leave.
This enabled the researchers to show that solvent molecules also accompany the ions into the electrode as it charges. e can now accurately count the number of ions involved in the charge storage process
and see in detail exactly how the energy is stored, said Griffin. n the future we can look at how changing the size of the holes in the electrode
and the ion properties changes the charging mechanism. This way we can tailor the properties of both components to maximise the amount of energy that is stored.
The next step, said Professor Clare P. Grey, the senior author on the paper, s to use this new approach to understand why different ions behave differently on charging, an ultimately design systems with much higher capacitances.
Funding for the project was provided by the UK Engineering and Physical sciences Research Council and the European Research Council
#Silver-Ion Infused Lignin Nanoparticles Effectively Kill Bacteria Orlin Velev, an engineer at NC State engineer,
The silver-ion infused lignin nanoparticles, coated with a layer of charged polymer that aids the particles to stick to the target microbes,
The nanoparticles infused with silver ions were utilized to attack Pseudomonas aeruginosa, disease-causing bacteria; E coli, a bacterial species that cause food poisoning;
The technique involves aiming a highly focused stream of ions at the topological insulator. To generate that beam of ions,
the researchers used a large particle accelerator called a cyclotron, which accelerates protons through a spiral path inside the machine
In betaetected nuclear magnetic resonance, ions (in this case, the ionized lithium-8 atoms) of various energies are implanted in the material of interest (the topological insulator) to generate signals from the material layers of interest.
Toxic heavy metal ions like mercury, lead and arsenic are released into the water through human activity, including manufacturing and industrial processes.
The silicon apercould replace graphite in conventional lithium-ion EV batteries, and that where things start to get really exciting.
what under the hood apparently just a 1. 0 liter gas generator paired with a 12.2 kilowatt lithium-ion battery integrated with a rear-mounted electric motor
Some lithium-ion batteries with graphite anodes provide less than 600 Wh/L a thin sheet of lithium foil was used to replace the more conventional electrode material,
Lithium-ion batteries have become more high-profile recently because of the very notable success of the Tesla Model S
so they combine the calcium with carbonate ions to form calcite, or limestone, which closes up the cracks.
just as it is required in advanced lithium-ion batteries. Even after 4, 000 cycles and at a rate of 10c, the anode achieved a specific capacity of 420 mahg-1. Here are some excerpts from a paper on the work:
the described 3d porous Si-C nanocomposite has a great potential as a practical anode material for Li-ion batteries.
Lewis has conducted previously groundbreaking research in the 3d printing of functional materials including tissue constructs with embedded vasculature lithium-ion microbatteries and ultra-lightweight carbon-fiber epoxy materials s
Air force researchers want to check design modifications to ion thrusters already flying on some advanced military communication satellites.
produces much less thrust at 30 to 50 micronewtons-less than a thousandth of the output of some relatively low-powered ion thrusters used today.
pull two Li-ion batteries out of the Smartscooter, dump them into shaped holes in the charger,
and even fewer opt ions is serving no one. Tech companies are lining up on both sides of this one, with other major firms standing against the FCC proposed plan C
#New aluminum air battery could blow past lithium-ion runs on water As battery technologies go,
the world has a love-hate relationship with lithium-ion. On the one hand, breakthroughs in Li-ion designs and construction are responsible for the Tesla Model S, new installations, green energy research,
and the modern smartphone. On the other hand, lithium-ion limitations are the reason why most EVS have a range of 40-60 miles, the Model S costs upwards of $80, 000,
and why your smartphone can last all day on a single charge. For all its promise and capability
lithium-ion has limited long-term utility which is why a new announcement from Fuji Pigment is so interesting.
we can build batteries that blow traditional lithium-ion out of the water. Keep in mind that the chart below is exponential,
meaning that fuel cell technology has 10 times the energy density of a typical cobalt-Li ion battery.
and Tesla has thrown already its weight behind the further use of lithium-ion technology u
and stretched the lithium-ion battery to 150%of its original size. The result? The wearer bent
is much safer than a lithium-ion cell (though less energy-dense), is nearly immune to temperature extremes,
Ions on the window glass surface subsequently fluorescence in infrared when exposed to that reflected light the more light that hits them,
Scale drives cost reduction for storage We are already witnessing the impact of manufacturing scale on cost for lithium-ion batteries being bid into the electricity market.
Boston-Power has raised up to $450 million for its lithium-ion battery technology over the past five years.
allowing for energy densities that are orders of magnitude higher than lead-acid, lithium-ion, and vanadium redox flow chemistries.
#24m Unveils the Reinvented Lithium-Ion Battery Five years ago, M24 Technologies spun out from parent company A123 with plans to turn a mysterious,
semisolid electrode material into a revolution in how lithium-ion batteries are designed and built. Back then, cofounder and Massachusetts institute of technology professor Yet-Ming Chiang described a lean sheet of paperapproach, combining concepts from flow batteries and fuel cells,
and stripping the modern lithium-ion battery architecture of all its inactive materials and complex manufacturing steps.
-based startup unveiled the results--a lithium-ion battery that it says can be built at $100 per kilowatt-hour at scale,
Compared to the multi-stage process used in today lithium-ion batteries, it implified, streamlined, with a lot of metrology,
to make it as reliable and bulletproof as we can. 24m process can also incorporate a multitude of today different lithium-ion chemistries into its semisolid materials process,
he said. ur defining goal is to chop 50 percent out of the cost of lithium-ion today,
that where we get to this $100 per kilowatt-hour cost. 24m is targeting a lithium-ion energy storage market that already being targeted by contenders like Tesla motors, Boston-Power,
And outside lithium-ion batteries, a host of new chemistries from startups such as Aquion, Eos Energy storage and a long list of flow battery contenders are promising low-cost
So how does 24m approach make for an entirely new way of designing and building lithium-ion batteries?
he said. ut what we realized upon forming the company was that this semisolid electrode capability had a much better home--reinventing how lithium-ion batteries are made.
Chiang identified two main problems in today lithium-ion battery design. ne is that the current lithium-ion battery itself contains a great deal of material that doesn store any energy
He referring to the inactive material that layered between the super-thin electrodes that allow today lithium-ion batteries to charge
and discharge quickly. aving a thin electrode means that the distance the lithium ion has to travel is short--and in the beginning,
like the semisolid materials that 24m forms into anodes and cathodes. hat we do is provide more line of sight paths for the lithium ions to get out of the electrode,
That necessary for the lithium ions to get out of the back of the battery, he said.
as compared to typical lithium-ion batteries for power tools, tablets and electric vehicles. At the same time, e believe these to be the safest lithium-ion batteries ever created,
he said, largely due to the lack of brittle, breakable separator materials within the battery cells.
he said. he second aspect of lithium-ion technology that we felt needed to be reconsidered is the whole manufacturing process,
Chiang said. hy does a conventional lithium-ion battery plant have to be so expensive and so large?
First of all, a conventional lithium-ion battery plant starts with metal foil, and then layers liquid nk or painton it to form its electrodes,
he said. verything they use is already in the lithium-ion supply chain. And because all the materials that 24m puts into the process end up in the final product
much simpler than the processes used to make lithium-ion batteries today. he formulation process for making these electrodes is spent exacting,
24m technologies, a123, alevo, aquion, arpa-e, batteries, boston-power, energy storage, eos energy storage, flow battery, imergy, investors, lg chem, lithium-ion
The company will also be releasing new printing materials in order to try its hand at printing resistors, sensors and, for future models of its printer, even lithium-ion batteries.
#Novel Approach for Lithium-ion Batteries Researchers from MIT and Cambridge, Mass. -based Battery Company 24m have come up with an advanced manufacturing technology for lithium-ion batteries.
Researchers have claimed of reinvented the process for manufacturing lithium-ion batteries. Not much change has been noticed in the manufacturing of lithium-ion batteries in the two decades.
Yet-Ming Chiang, the Kyocera Professor of Ceramics at MIT, was of the view that the existing technology is not perfect
and there is a need to made advancements. Five years back, Chiang and colleagues developed the new process.
"We realized that a better way to make use of this flowable electrode technology was to reinvent the lithium ion manufacturing process".
and is particularly difficult for young children that don understand the purpose of it All the new technology relies on a special silica glass that has ions throughout that fluoresce in infrared in response to laser light.
Velásquez-García and his colleagues use a technique called deep reactive-ion etching. On either face of a silicon wafer, they etch dense arrays of tiny rectangular columns tens of micrometers across
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