Synopsis: Energy: Battery:

2015 By Simonthanks to a recent surge of interest surrounding various alternative energy sources and technologies including Elon musk announcement of a Tesla home battery,

supporting batteries and energy harvesters configured to provide low-power current at maximum efficiency. This architecture allows designers to use smaller, cheaper,

low-power batteries and extend their run-time and cycle life, or use intermittent ambient energy sources such as solar photovoltaic.

and other low-power batteries such as coin cells/button cells, energy harvesting modules (solar, vibration/kinetic, RF,

"Our study shows that this material has exceptional energy storage capacity, enabling unprecedented performance in lithium-sulfur batteries and supercapacitors."

the Stanford team fabricated carbon-coated electrodes and installed them in lithium-sulfur batteries and supercapacitors."

Batteriestests were conducted also on lithium-sulfur batteries, a promising technology with a serious flaw: When lithium and sulfur react,

and cause the battery to fail. The Stanford team discovered that electrodes made with designer carbon can trap those pesky polysulfides

and improve the battery's performance.""We can easily design electrodes with very small pores that allow lithium ions to diffuse through the carbon

which have relatively large batteries, said Ben Lee, president and CEO, mcube, Inc. ith key input from leading device manufacturers, we developed the MC3600 family of accelerometers to extend battery life

while keeping the footprint as small as possible, making them truly optimized for the wearables and Iomt market.

mcube has yet again proven its monolithic single-chip technology can deliver significant advancements in reducing sensor battery life

dramatically extending battery life. The MC3610 is sampling now and features mcube proven monolithic single-chip motion sensor technology.

They are used also in flashes in mobile phones and as a complementary technology to batteries in order to boost performance.

For example, when placed alongside a battery in an electric car, a supercapacitor is useful when a short burst of power is required,

such as when overtaking another car, with the battery providing the steady power for highway driving. upercapacitors perform a similar function to batteries

and the paper lead author. heye much better at absorbing charge than batteries, but since they have much lower density,

and that might make them a high-power alternative to batteries. At its most basic level, a battery is made of two metal electrodes (an anode and a cathode) with some sort of solution between them (electrolyte.

When the battery is charged, 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,

generating an electric current. A supercapacitor is similar to a battery in that it can generate and store electric current,

but unlike a battery, the storage and release of energy does not involve chemical reactions: instead, positive and negative electrolyte ions simply tickto the surfaces of the electrodes when the supercapacitor is being charged.

When a supercapacitor is being discharged to power a device, 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,

we fill the carbon electrode with tiny holes, 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

while it charges. n a battery, the two electrodes are different materials, so different processes are said at work

which can be combusted in fuel cells or can be utilized as a clean fuel source in the chemical industry, for instance in cars to drive engines.

One efficient solution is to link a current silicon solar cell to a battery which is capable of splitting the liquid water;

although it is still not close to the 15%efficiency obtained by silicon cells connected to a battery.

so you then actually have a fuel cell in which you can temporarily store your solar energy.

to low temperature fuel cells. Materials researchers at the Georgia Institute of technology initially came across the nano cage as a potentially powerful approach,

#Novel Fabrication Technique Helps Produce Ultra-Thin Hollow Platinum Nanocages for Fuel cells Researchers from Georgia Tech, University of Wisconsin-Madison, Oak ridge National Laboratory,

Arizona State university and Xiamen University in China have developed a new fabrication method that minimizes the need for expensive metal to induce catalytic activity in fuel cell applications.

When these nanocage structures are used in fuel cell electrodes, platinum's utilization efficiency can be increased by a factor of seven,

which could affect the economic viability of the fuel cells. e can get the catalytic activity we need by using only a small fraction of the platinum that had been required before,

However, due to its high cost, the use of low-temperature fuel cells in automobile and home applications has been limited.

The research is focused mainly on reducing the expense of cathodes used in fuel cells that power homes and automobiles.

The oxygen-reduction reaction occurring at the cathode in the fuel cell requires platinum in substantial quantities.

The hollow shells could result in economically beneficial automotive and home fuel cells by minimizing the amount of platinum by up to a factor of seven.

and enables multi-year coin cell battery operation. Unlike traditional digital temperature sensors, the Si705x devices maintain their accuracy across the full operating temperature

With a low 1. 9 V minimum power supply voltage, the Si705x sensors can be connected directly to a battery without the need for an external voltage regulator. emperature is the most pervasive environmental metric that embedded developers need to measure

so that to conserve the battery life, which enables the standby time of the display is long to 30 days.

Meanwhile, the mechanical dial keeps telling wearers the time even the display's battery runs out.

thus allowing for extended battery performance. About Omnivision Omnivision Technologies (NASDAQ: OVTI) is a leading developer of advanced digital imaging solutions.

however, will require extremely low-power sensors that can run for months without battery changes or, even better,

Where most of its ultralow-power predecessors could use a solar cell to either charge a battery

and it can power the device directly from the battery. All of those operations also share a single inductor the chip main electrical component which saves on circuit board space

Nonetheless, the chip power consumption remains low. e still want to have battery-charging capability, and we still want to provide a regulated output voltage,

the battery, and the device the cell is powering. If the battery operates for too long at a voltage that either too high or too low, for instance, its chemical reactants break down,

and it loses the ability to hold a charge. To control the current flow across their chip, El-Damak and her advisor, Anantha Chandrakasan,

such as its lens and battery, are built in to the sheet, keeping assembly as simple as possible.

It's worth mentioning that there is no battery or power supply in these devices; they're powered by the readers you bring them close to.

Regular Wi-fi has sometimes been blamed as a battery drain in smartphones but the Wi-fi Alliance says Wi-fi Aware operates in a very power efficient way"through a unique process of discovery

including rapidly charging the batteries of electric buses at their route stops. Wood says increasing the frequency of buses

#Imergy Power systems Introduces Grid-Scale ESP250 Series Flow batteries A new ESP250 series of vanadium flow batteries has been introduced by advanced storage systems leader Imergy Power systems.

Multiple batteries can be linked together to create one energy storage platform. When they are linked together, this platform can provide megawatts of power and megawatt-hours of energy.

Both industrial and commercial customers can use these flow batteries for large-scale energy applications. Microgrid implementation, peaker plant replacement, transmission and distribution investment deferral, backup power system delivery,

and renewables management are possible with these new batteries. So are peak shaving and frequency regulation.

Like other Imergy flow batteries, they also use vanadium from fly ash and mining slag. In other words, it is recycled material.

so Imergy flow batteries could be used for 20 years or more. The components of an Imergy flow battery are nontoxic and nonflammable.

This is obviously different from lithium batteries, which have shorter lifespans and can explode. Cleantechnica has reported steadily about Imergy for some time

because the company keeps finding ways to succeed. I imagine wel have another Imergy story up before too long

#EV Batteries Good, Paper EV Batteries 10x Better No matter how fast the cost of oil drops, it just can keep up with the pace of improvements in electric vehicle batteries.

In the latest development, a team of researchers at the University of California, Riverside, has come up with a paperlike material that could bring in a new generation of high-range batteries.

and you can see why the prospects for future petroleum dependency are dimming with every advance in EV battery technology.

The new EV battery announcement from the school Bourns College of Engineering, involves a new paperlike material made from silicon in the form of spongy silicon nanofibers.

So Paper EV Batteries, So What? The silicon apercould replace graphite in conventional lithium-ion EV batteries,

and that where things start to get really exciting. In a conventional battery, the anode (along with the cathode, the anode is responsible for charging

and discharging) is coated with a material based on graphite. Researchers appear to have reached the performance limits of graphite,

its electrical charger per unit weight of the battery is almost 10 times more than graphite.

However and there always a however silicon tends to degrade the battery when it expands.

enabling the battery to cycle hundreds of times without degrading. In the illustration below, you can see the upcycling process at work:

which would help shave down the cost of EV batteries. You can get all the details from the research team article, owards Scalable Binderless Electrodes:

the team will be working on scaling up the technology into a larger format for EV batteries.

Meanwhile, keep your eye on another up-and-coming EV battery material, nanocellulose. What Now, Petroleum? The advantages of EV technology are becoming more and more apparent practically by the minute,

Imergy Power Systemseps30 series institutional scale vanadium redox flow batteries will be installed as part of the microgrid. The total power and energy capacity of these batteries is 250 kilowatts/1 megawatt-hour.

Geli Energy Operating system and Energy management applications will be used to manage the microgrid. Las Positas College in Livermore will be the site of the flow batteries installation,

where there is already a 2. 35 MW solar array that generates about 55%of the campus electricity.

Imergy battery systems can be integrated into a number of different situations. Cleantechnica has reported on its energy storage solutions being used at an almond farm in California

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

#Lithium batteries With 200%Typical Energy density Solid Energy, a Boston-based startup, recently said it has developed battery materials that have 200%greater energy density.

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,

This new battery technology is compatible with existing battery manufacturing capabilities, so it can integrate well with them.

The company has a goal of making materials for about 30 million cell phone batteries by 2016.

Cell phone batteries are notorious for having to be recharged frequently which inconveniences and irritates customers.

the ARA phone could allow more than one battery, if that was preferred. T he Ara platform is designed to permit hot-swapping of modules

and replace it with a battery whenever you needed a little extra juice. So, if the Ara phone is launched,

could it be possible to have four times the battery life of a current, conventional cell phone?

That Google would choose Solid Energy as a potential partner for such a huge project seems to speak well of the startup new battery materials. he reason wee focusing on the materials side is that it where we can add the most value,

An article in MIT Technology Review says Solid Energy battery technology is appropriate for smartphones, but probably not for electric cars,

Lithium-ion batteries have become more high-profile recently because of the very notable success of the Tesla Model S

On Monday, BMW teased out word of its plans for a fuel cell electric vehicle launch in 2020.

which fluid is stored in a bank of accumulators. The accumulators literally accumulate the herky-jerky energy of the wave motion

and release it in a steady stream to a hydraulic motor. The motor goes to a generator,

and indirectly by driving battery costs down to create storage for distributed renewables. This all then unleashes competition across sectors bringing new players to old industries.

battery manufacturers, copper and lithium miners, electronics producers, software developers, electric engine makers, smart grid builders and, of course, solar and wind power manufacturers, installers and financiers.

It that competing energy products of renewables and batteries, in a system with electric vehicles, will behave as a disruptive technology always does,

and Google who are both developing battery and car opportunities, with a close eye on the technology integration opportunity.

#High-performance 3-D Silicon Anodes Made From Reed Leaves A low-cost approach to fabricating nanoporous silicon a potentially highly useful material for next-generation anode material in batteries,

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.

or have wired a link to a battery. l

#Nasa spots most luminous galaxy in the universe-shining with the light of more than 300 TRILLION suns A dazzling galaxy that shines with the light of more than 300 trillion suns has been discovered by astronomers.

or more with its battery pack The robot is set to compete in the US government's robo olympics next month.'

and personalise every listening experience. he earbuds boast a six-hour battery life, and connect to a smartphone via Bluetooth.

but adds a twist-the battery, motor and wheels can be swapped easily and replaced for different riders and varying terrains.

The bike's centre frame assembly includes the motor and battery, while the front and rear assemblies and wheels can be configured for road,

'The bike's centre frame assembly includes the motor and battery, while the front and rear assemblies and wheels can be configured for road, mountain or city riding.'

One of the project's prototypes features a twin battery back on both sides of the dog, a mounted webcam,

The system is powered by a 13v battery which can recharge itself when the engine is on.

and smartphones. ola fingerprint smart lock wants to bring it to the forefront with faster operation, longer battery life,

or a standard latch bolt system. the ola fingerprint lock uses four AA BATTERIES with a back up AAA BATTERY that are all replaceable by dissembling the back casing on the side of the home.

#Battery swap charges moped in 10 seconds Smartscooter from Gogoro is moped an electric that charges in under 10s

because it has swappable batteries. As such it needs special battery swap stations particularly as home charging is said to be impossible the first infrastructure for

which is being installed in Taipei. Drive up to the charge station, pull two Li-ion batteries out of the Smartscooter, dump them into shaped holes in the charger,

and it automatically pops up two charged batteries to replace them. The batteries include slide-in connectors on the bottom,

so there is no separate disconnection or connection procedure. And the batteries fit in any way around

so long as the handle is at the top. martscooter gathers, analyses, and shares riding behaviours ten times a second to help riders determine what best for their Smartscooter energy consumption

while getting the same performance, said the firm. his riding data is updated to the cloud, every 10 minutes,

from the Gogoro mobile app on the riders smartphone or when a battery is exchanged at a Gostation via NFC. iders get to select specific ride feel,

Very low power consumption provides for exceptionally long battery life measured in years from small conventional cells.

hassle-free refueling network for owners of fuel cell vehicles (FCVS). The joint project (conducted alongside the Japanese government support for hydrogen stations) will partially cover hydrogen station operating expenses incurred by infrastructure companies.

which has no battery or replaceable parts, enables monitoring of changes in blood pressure in the pulmonary artery,

New partners inductive data transfer and cutting-edge battery tech Ever since Google Project Ara debuted, consumers have been interested in the possibility of a customized smartphone with hot-swappable modules

the option to swap out the battery while the device is in low power mode, and the opportunity to use multiple antennas for better signal sourcing and multiple carrier support.

Google also talked up the concept of giving new and unusual battery designs a forum to experiment with Project Ara there are battery technologies that offer substantial improvements over conventional lithium polymer architectures

and hobbyists who want the ability to customize a phone for particularly long battery life or with specialized sensors.

this type of generator could remove the need for batteries in certain mobile devices your smartwatch

perhaps even removing the battery entirely, which is one of the biggest constraints to smartphone development and design o

#New aluminum air battery could blow past lithium-ion runs on water As battery technologies go,

The company is claiming that its new aluminum-air batteries can run for up to two weeks and be refilled with normal water.

How an aluminum-air battery works First, some basics. The problem with battery technology isn whether or not we can build better batteries as the chart below shows,

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.

The various etal-Airbatteries including zinc-air, aluminum-air, and lithium-air, have some of the highest energy densities its possible to build.

The difficulties with aluminum-air construction, in particular, has been rapid degradation of the anode and, in early models of Al-Air, the release of hydrogen gas.

The studies in question are aimed all at enhancing the performance of Al-air batteries while extending their useful lifetimes typically,

creating a secondary aluminum-air battery adjacent to the primary buffered the accumulation of byproducts that normally prevent the battery from working properly over the long term.

The echargabilityof Al-air batteries requires some explanation. Al-air batteries are primary cells, which means they can be recharged via conventional means.

As the aluminum anode is consumed by contact with oxygen, hydrated aluminum forms as a byproduct.

which is why the batteries are referred to as rechargeable. Periodically, the aluminum anode will have to be replaced it not clear how often the Fuji Pigment battery would need servicing of this sort.

Could Al-air be the next big thing? New battery technologies and announcements are a dime a dozen,

but there reason to think that a workable Al-air technology could deploy within the next 2-5 years.

Al-air batteries have actually been used in specialized military applications for years, which is important it means there some preexisting expertise

The hydrated aluminum oxide solution produced during the battery normal operation would need to be recycled in some fashion

(and the weight of the aluminum anode in these batteries is unknown), but the team that performed that analysis noted that proper recycling would put Al-air in the same cost range as conventional internal combustion engines.

and make all-day smartwatch battery life a reality in the long run t

#Lasers create surface so hydrophobic that water bounces off like a ball In the study of hydrophobic surfaces,

#irigamistretchable batteries could herald flexible electronics era Fitness trackers and smartwatches aren known for their battery life,

and it may have something to do with the inflexible, fixed-shape cell packs inside. A new experiment bears testimony to the idea that,

and flexible batteries should become more flexible, too. Arizona State university and China Jinan University have teamed up to create

what could become the first flexible batteries inside wearable electronics. The secret to these tretchable batteriesconsists of a traditional Japanese fold-and-cut practice of kirigami (which derives from origami.

and then replaced the 300mah battery inside Samsung Gear 2 smartwatch with the coated kirigami-cut aluminum foil.

To test out the new battery, the researchers connected the aluminum foil with two pliers, attached it to both the Gear 2 smartwatch

and stretched the lithium-ion battery to 150%of its original size. The result? The wearer bent

%the kirigami battery remained intact, and the Gear 2 smartwatch continued its video playback. ASU leader Dr. Jiang says that the kirigami-based design is the secret to the future of flexible electronics. he kirigami-based methodology can be expanded readily to other applications to develop highly stretchable devices

The goal behind stretchable batteries is to create mobile computing devices that are fully flexible devices that need not sacrifice elegance for functionality Flexible batteries will allow devices to become thinner, lighter,

and more formal while leaving room for two batteries to be placed inside a device instead of just one.

The Gear 2 300mah battery, as stated in the report, could become a 600mah battery that keeps a smartwatch

or smart fitness band alive for twice as long on a single charge f

#Evaporation engines using artificial muscles made from bacteria A team of researchers from the US have created evaporation-driven engines that can power common tasks like locomotion and electricity generation.

In the subsequent tests, the camera performed remarkably well. he battery-free camera can operate up to about five meters from the router,

By adding a rechargeable battery, he increased the distance to seven meters. The router could even power the camera through a brick wall,

and used it to recharge the battery that powered it. sing this, we charge a Jawbone device in the vicinity of the power-over-Wi-fi router from a no-charge state to 41 percent charged state in 2. 5 hours,

Each nti-bacterial, sweat-proofpair features a Bluetooth wireless connection and offers more than four hours of battery life.

Each nti-bacterial, sweat-proofpair features a Bluetooth wireless connection and offers more than four hours of battery life.

#"Origami battery"made from paper and dirty water for just a few cents In the system, explained in the July issue of the journal Nano Energy,

the engineer who developed the battery. nd we don need external pumps or syringes because paper can suck up a solution using capillary force. he battery can fold down into the size of a matchbook

and utilizes a cheap air-breathing cathode made of liquid nickel sprayed onto one side of a regular

Actual origami techniques were used to create three-dimensional, stackable battery structures from the original, two-dimensional paper batteries.

The system doesn't require specially engineered nanomaterials like those used to make other paper-based batteries in the past.

Creating one of the batteries capable of delivering enough microwatts to run a biosensor in the field costs only five cents.

The students essentially developed a portable version of the treatment one that could run off a battery

800-mah battery that offers enough juice for the projector to run for about two hours on a charge.

or chemical energy used to split water and produce hydrogen for use in fuel cells. In an advance that could help this clean energy source play a stronger role within the smart grid, researchers at the University of Texas,

The system also includes a vanadium redox-flow battery (VRB. This is an already established type of energy storage cell that is very well-suited for the needs of the electrical grid as it can stay idle for very long times without losing charge,

According to the researchers, the vanadium flow battery works especially well with their hybrid electrode, allowing them to boost the electric current,

but things stray from the norm at the bloated seat tube, which houses the battery and electric motor drive.

The front triangle detaches from the battery cage, splitting the bike for transport (another reason why we wouldn't ride it on anything rougher than a paved path).

The battery can be charged directly from the vehicle outlet. The multipurpose, breakaway frame may have you thinking that the Mode:

so we're left to assume that it packs the same 200-watt motor and 9 Ah battery as the Mode:

Energy that is not immediately required is stored in the house's 6. 9-kwh battery. Electricity generated and stored is used to power the heating, ventilation, hot water system and household appliances.

and is meant to keep all sorts of battery-powered devices connected to the network for up to twenty years,

But battery-powered wireless devices are a trickier matter, requiring careful management of just how much electricity is being used to receive

and while these streetlight communications modules don need batteries to run, they may want to talk to traffic lights

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