energystorage
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Liquid metal battery could lower cost of storing renewable energy
As dreamy as it might be to combine renewable energy sources with storage batteries, there's a problem: those batteries are expensive. It might take you years to recoup the costs. You'll be glad to hear, then, that Stanford scientists have a way to make those batteries more cost-effective. They've developed a liquid metal-based flow battery that can store electricity at a lower price, even on a large scale. A metal-producing mix of sodium and potassium serves as the negative side of the battery, providing nearly twice the maximum voltage of typical flow batteries (making them high-value) without having to resort to exotic chemicals or extreme temperatures.
Tesla's next California energy storage project may be its largest yet
Tesla's giant Australian energy storage facility may seem small in the near future. Pacific Gas and Electric has submitted proposals for four new energy storage projects to the California Public Utilities Commission, one of which is for a facility at its Moss Landing substation that could output 182.5MW over the course of four hours -- that's more than 3,000 of Tesla's Powerpack 2 units. For context, the Australian location outputs 'just' 129MW. The project would have a total 1.1GWh capacity, which fits with Elon Musk's recent hints that Tesla could have a "gigawatt-hour scale" deal within months.
BMW i3 batteries provide energy storage for UK wind farm
The UK is now home to one of the largest energy storage projects using EV batteries. Vattenfall has connected a total of 500 BMW i3 batteries to the Pen y Cymoedd onshore wind farm in Wales, creating the biggest co-located installation in the UK. The add-on (housed in six containers like the one above) will help provide a more reliable source of renewable energy -- it'll provide consistent, readily available power.
Tesla Powerpacks will supply Nantucket’s backup power
Tesla has been boosting power grids all over the world with its Powerpack battery systems and now its energy storage products are heading to Nantucket, Electrek reports. The island will host over 200 Powerpacks that will serve as backup power and grid stabilizers for Nantucket's 11,000 permanent residents and nearly 40,000 seasonal visitors.
Puerto Rico governor will discuss Tesla solar systems with Elon Musk
Following hurricanes Irma and Maria, millions of Puerto Rico residents were left without electricity and it's expected to take months for power to be restored. Well one person mused on Twitter whether Elon Musk could help out by rebuilding the island's electricity grid with solar and battery systems and Musk responded that it wasn't out of the realm of possibility.
Researchers create more efficient supercapacitor to power wearables
Supercapacitors offer a lot of advantages over batteries when it comes to energy storage. They can store a lot more of it, they can take on or transmit energy much more quickly and they typically last way longer. But incorporating supercapacitors into things like wearables has been difficult because making them flexible and stretchable comes with some costs. Usually, flexible supercapacitors are made with complex and pricey methods or are limited to just a few types of materials. They can also end up being less stable and, thus, short-lived. And a major problem with these sorts of supercapacitors is actually getting the ions inside of them, which are needed for energy transport, to the area where they need to be in order to be useful.
Researchers made a battery out of trash
Pursuing more efficient sources of renewable energy has led to many iterations of the battery. But researchers just brought a really interesting new version to the table, one made from potassium ions and trash.
Liquid battery could last for over 10 years
Modern batteries aren't hampered so much by their capacity as their long-term lifespan -- a lithium-ion pack can easily become useless after a few years of heavy use. That's bad enough for your phone, but it's worse for energy storage systems that may have to stick around for the long haul. If Harvard researchers have their way, you may not have to worry about replacing power backs quite so often. They've developed a flow battery (that is, a battery that stores energy in liquid solutions) which should last for over a decade. The trick was to modify the molecules in the electrolytes, ferrocene and viologen, so that they're stable, water-soluble and resistant to degradation. When they're dissolved in neutral water, the resulting solution only loses 1 percent of its capacity every 1,000 cycles. It could be several years before you even notice a slight dropoff in performance.
Batteries that stretch are perfect for smart watches and clothes
Used to be that the only time your lithium-ion batteries changed their shape was when they were about to explode in an airliner cargo hold. But thanks to the ingenuity of an Arizona State University research team, future power packs could not only bend but stretch up to 150 percent of their original size while providing an uninterrupted stream of power. Their secret: the ancient Japanese art form of Kirigami. It's an offshoot of the more well-known Origami form that involves both folding and cutting the working material.
California's giant battery test is a step towards clean energy
One of the biggest challenges of switching to clean energy sources is finding a place to store excess power. That's relatively easy on a small scale, but it's much more daunting for your utility company. Southern California Edison is apparently ready to take on that challenge, however. It just launched the Tehachapi Energy Storage Project, a large-scale experiment in using lithium-ion batteries (608,832 of them, to be exact) to preserve unused electricity. For the next two years, the 32 megawatt-hours array will scoop up leftover energy from nearby sources, including a wind turbine area; SCE will be watching closely to see how the lithium-ion packs improve its grid's real world performance.
NASA is looking for an alternative to battery power for its spacecraft
NASA knows that conventional battery power won't cut it at a certain point, especially when the agency's vehicles travel into deep space. To that end, it's asking both public institutions and companies to submit proposals for battery alternatives. The initiative will tackle both low-level energy cell design, such as chemistry and packaging, as well as advanced devices that could outperform existing lithium cells. Ideally, NASA will get energy storage that provides more power without taking a hit to either longevity or safety. [Image credit: NASA]
New 'semi-solid' battery could recharge EVs as fast as pumping gas
Researchers at MIT reckon they've struck oil. In fact, you're looking at what they call "Cambridge crude" -- a substance that could halve the weight and cost of EV batteries and make them quicker to charge too. The black goo is packed with a high concentration of energy in the form of particles suspended in a liquid electrolyte. When separated by a filter, these particles function as mobile electrodes that can be pumped into and around a system before the energy is released. So instead of waiting up to 20 hours to juice your Nissan Leaf, you could potentially just pump this pre-charged substance into it -- rather like dirty old gas. Until now, no such "semi-solid flow cell" has been able to hold useful quantities of energy, but this stuff literally oozes with it. Not only could it power EVs, it could even be used for large-scale electricity storage for utilities. The researchers insist this energy revolution is years off -- but when it comes, there will be blood.
Beacon Power completing construction of 20-megawatt flywheel plant, the world's largest
Remember Beacon Power, that startup using 2,800-pound flywheels to cut noxious emissions? Well, three years later, the company is wrapping up construction of its first plant, a 20-megawatt operation that just happens to be the world's largest. The Stephentown, NY facility is home to 200 of these flywheels, which store and output energy as needed, essentially matching the power supply with the demands of the grid. The result, the company promises, is reduced energy waste and stable electrical frequencies hovering around 60Hz. And while the plant's already up and running at 18 megawatts, it won't be until later this month that Beacon finishes building it out so that it reaches its full capacity. Full PR and champagne-popping celebration plans after the break. %Gallery-125247%
Toyota working on magnesium batteries for PHEVs of the not so near future
Toyota wants to take your range anxiety out for a walk behind the woodshed and obliterate it from the known world. The means for doing this, the Japanese giant has revealed, might very well be contained in its new magnesium-sulfur batteries, which promise to double the energy density of the current industry-best lithium ion cells. Of course, the catch here is that the new magnesium goodness is nowhere near ready and is projected to come in 2020 at the earliest, but we're gladdened to see a long-term view being taken by car manufacturers with regard to powering vehicles electrically. Alternative methodologies currently under review in Toyota's labs also include aluminum and calcium materials, showing that there is indeed no lack of ambition for making plug-ins respectable road warriors.
Graphene electrodes promise 5x energy storage boost for ultracapacitors
Graphene. We hear of your achievements so often, but feel your benefits in our everyday lives so infrequently. We'd be remiss if we didn't point out how unhealthy of a relationship this is, but hopefully Bor Jang and co. have a mind to mend it all. Bor, along with a number of colleagues at Nanotek Instruments, have just uncovered a graphene advancement that could put conventional Li-ion cells in a world of hurt. Of course, we've been hearing about so-called "battery breakthroughs" for the better part of our lives, but few have involved progress with ultracapacitors. For those unaware, ultracapacitors are energy storage devices that can "absorb and release charge in minutes," and they're pegged as cheaper / safer alternatives to batteries for electric vehicles. The only problem? Mainstream versions today hold just five percent of the energy held by Li-ion batteries. Nanotek's crew has figured out that the use of graphene electrodes "could lead to ultracapacitors with more than five times the energy density of commercial devices," but as these things always go, no one's coming close to producing a hard release date. We'll just assume it's undergoing lab tests for now, and in 2022 we can all weep at what could've been. Prove us wrong, whiz kids.
UTexas researchers develop organic battery, aim for week-long use in smartphones
Christopher Bielawski, a brilliant mind working at the University of Texas at Austin, had this to say about his newest discovery: "I would love it if my iPhone was thinner and lighter, and the battery lasted a month or even a week instead of a day; with an organic battery, it may be possible." Anyone that has ever owned an iPhone (or a smartphone or any sort, really) can grok just how bold those words are, but according to Mr. Bielawski, "we're now starting to get a handle on the fundamental chemistry needed to make this dream a commercial reality." At the center of this potential revolution is a newfangled organic battery recently detailed in the journal Science, but just as important is the artificial photosynthesis that the research also touches on. Bielawski and colleague Jonathan Sessler have seemingly figured out how to create an electron transfer process that can proceed in the opposite direction, with this forward and backward switching of electron flow opening up new avenues for the historically stagnant battery innovation market. Granted, these guys have yet to demonstrate that the process can occur in a condensed phase, so actual commercialization is probably a century millennium or two out, but hey -- at least our list of "awesome thing that'll probably never happen" has grown by one.
Carbon nanotubes find yet another purpose, could star in ultra-reliable batteries
Carbon nanotubes are kind of like peanuts. They both seem pretty simple at first glance, but with a little work, you can make pretty much anything out of 'em. Take this case, for example, as MIT boffins have discovered that by forming the tube-shaped molecules of pure carbon into minuscule springs, they could be "capable of storing as much energy, pound for pound, as lithium-ion batteries." The real kicker is exactly how they'd do it -- "more durably and reliably." Essentially, these newfangled cells could be left alone for years on end without losing their charge, and unlike conventional batteries, these wouldn't suffer from performance degradation when exposed to temperature extremes. Of course, anything as pie-in-the-sky as this is probably at least a decade or so out from Walmart shelves, but considering that the group responsible has already filed a patent, we'd say they're pretty confident in the possibilities.[Via Physorg]
Altair Nanotechnologies, AES collaborate on energy storage products
After sinking $3 million into a company, what better to do than utilize the synergies and compliments between the two and crank out new products to better our lives? AES is apparently digging said mantra and looking to profit on its strategic investment in Altair Nanotechnologies by announcing a "joint development and equipment purchase agreement." Essentially, the two will reportedly work together to jointly "develop a suite of energy storage solutions," some of which are expected to deliver over 1MW of power and 500KWh of energy. Unsurprisingly, Altairnano is supposedly working with AES to apply these products and systems at "strategic points within the electrical grid to more efficiently deal with congestion, peak energy consumption, and real-time fluctuations in electricity demand." Interestingly, little is being said thus far about the actual design of the unit, but a prototype is slated to be completed by the year's end.[Via CNET]
