#rs2e

[electronautviews]

Neues Batterie-Forschungszentrum in Amiens

Neues Batterie-Forschungszentrum in Amiens

Die französische Forschungs­ministerin Frédérique Vidal hat im nord­französi­schen Amiens ein neues Forschungs­zentrum für zukünftige Speicher­techno­logien eingeweiht, das „Energie Hub“. Damit positio­niert sich Frank­reich weiterhin als Motor im Bereich der erneuer­baren Energien und der Energie­wende.

Das Hub ist ein Labor für Grund­lagen­forschung und indus­trielle Entwicklung. Dort sollen…

[luke-cartwright]

Instagram - @lukecartwright

Website - www.lukewcartwright.com

[on-mag]

[hifikit]

Nu är Grado RS2e färdiginspelade och redo för demo! Handbyggda i Brooklyn. Välkommen in och provlyssna! #gradolabs #hifi #hifikit #headphones #hörlurar (på/i Hifi Kit) https://www.instagram.com/p/B8vzjf6pwdt/?igshid=13haougrd0ge3

[headphonesfeeling-blog]

Some Practical Support On Identifying Core Think about Earphones

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[caricon25-blog]

3 days ago ... Grado RS2e Headphone with Madewell Boots. grado, grado labs, grado headphones, sunset park, brooklyn, madewell, boots, leather, clothing, white washed ...

[magicsoundblog]

Grado RS2e

Cuffia dinamica allo stato dell?arte - Padiglioni in legno - 32 ohm

[technato]

How Long Before Sodium Batteries Are Worth Their Salt?

Researchers bet that sodium’s abundance and flame resistance will make it a good replacement for lithium in energy storage

Photo-illustration: Getty Images/IEEE Spectrum

Today, lithium is the active ingredient in batteries that power smart phones, laptops, and cars. But because of the price of lithium, researchers have been looking for another, more abundant element that could replace it. Several start-ups and established companies have tackled the idea of developing rechargeable batteries in which the active ingredient is sodium, lithium’s neighbor on the periodic table.

Besides its availability, sodium has several other important properties—not the least of which is its resistance to catching on fire. What’s more, “It was a good candidate because it could store a similar amount of energy as compared to lithium,” remembers Minah Lee, who does research on sodium batteries at Stanford University.

Photo: Beaujot/RS2E

Batteries made by Tiamat, a sodium battery startup spun off from the National Center for Scientific Research in France.

Today a number of companies are working on developing sodium batteries with the ultimate aim of replacing lithium as the key ingredient. The CNRS, The National Center for Scientific Research in France, recently announced the creation of Tiamat, a start-up company based in Amiens, France, that will develop and bring to the market a sodium rechargeable battery by 2020. CNRS says the battery will be designed in the widespread industrial 18650 format.

In the United States, Aquion, a startup whose focus is the production of high-capacity saltwater batteries for energy storage, escaped bankruptcy by a hair’s breadth. Initially funded with $190 million mainly by Bill Gates and Kleiner Perkins, Aquion was acquired in July by Juline Titans LCC for $9.16 million.

Also, researchers at several universities are now focusing on swapping sodium for lithium in batteries. The advantage these scientists have is that they can use large instruments, such as accelerators, to investigate the anode materials and how they function. “We can get great insight into where the sodium actually goes—both at a detailed atomic level (how it bonds with other atoms) and at much larger scales—as well as how the electrode particles change when they take up sodium,” says Michael Toney,  a researcher at the SLAC National Accelerator Laboratory, operated by Stanford University.

However, reception for sodium batteries by power utilities and by manufacturers of electrical power systems for cars has remained cool. For the moment, they’d prefer to stick with lithium. “The cost of today’s lithium-ion battery technology is very competitive across a variety of markets,” says David Snydacker,  a battery expert at Dosima Research. “So for these new sodium batteries to succeed, they not only have to compete against conventional technologies,  but have to compete against lithium batteries—currently a tall order.”

One problem that has not yet been resolved is finding or creating a high capacity anode, the negative side of the battery.  A favored material is hard carbon, a form of the element with a peculiar structure that allows the storage of sodium ions in spaces in-between atoms. “Lithium-ion batteries use graphite, but this does not work for sodium ions,” says Toney. “Instead we use hard carbon. This is not optimal and nobody really understands what this material is.”

Also, scalability is an important factor, says Lee. “We can rescale on different sizes of battery. The point of my electrode material is its sustainability. It is based on biomass, so for larger amounts you have a better benefit of the material,” says Lee.  Another important factor for finding a receptive market is a battery that can be produced with current industrial production lines. “[Sodium batteries’] processing should be very similar [to that of their lithium-ion counterparts],” says Lee. 

So, sodium batteries might roll off existing production lines, but the question is when? The answer to that question assumes that the sodium batteries are actually economical, and we don’t know this yet. 

Though the researchers associated with Tiamat have given themselves that tight 2020 deadline to start production, it remains to be seen whether they’ll hit their target. “There is still a lot of work, we did not get there yet,” admits Mathieu Morcrette of the University of Picardie “Jules Verne” in France.

The price of sodium as a raw material is much lower than lithium because of its relative abundance. Sodium sells at about $150 a ton compared to $15,000 a ton for lithium. After refinement, a battery made from sodium would be 5 to 10 percent cheaper than an identical battery made of lithium, estimates Snydacker. But because sodium has a lower charge capacity than lithium, sodium batteries are heavier and require more materials to manufacture, which adds far more to the overall cost than is saved by replacing lithium with sodium. Also, Snydacker thinks sodium batteries will be inferior in performance, and ultimately can’t compete with a lithium-based technology that has been perfected over the last few decades.

Editor’s note: This story was updated on 19 December to accurately represent the viewpoints of David Snydacker in the final paragraph.

How Long Before Sodium Batteries Are Worth Their Salt? syndicated from http://ift.tt/2Bq2FuP

[adalidda]

Photo: Battery prototype using sodium ions © Beaujot/RS2E

The start-up Tiamat to design, develop and produce battery using sodium ions

Two years after the first battery prototype using sodium ions in a standard industrial format was designed, the start-up Tiamat has been created to design, develop and produce this promising technology. This could counter some of the limits of the lithium-ion batteries that dominate the market today, such as recharge rate, lifetime and production cost. Specifically, sodium-ion batteries might allow mass storage of intermittent renewable energies (wind or solar) or equip electric vehicles. Located in Amiens, this company came out of the French network for electrochemical energy storage (RS2E) supported by CNRS. Today it has several tens of functional prototypes, and hopes to launch larger scale production by 2020.

Check more https://adalidda.com/posts/cqyWiKhaCwTetNqoG/the-start-up-tiamat-to-design-develop-and-produce-battery

[scitechman]

A Start-Up for Much Faster Batteries

In November 2015, researchers who were part of RS2E, mainly from CNRS, CEA and several French universities3, designed the first sodium-ion battery prototype in the 18650 format. That format is very widespread in industry, in particular for lithium-ion batteries. Using those lithium-ion batteries as direct inspiration, these sodium-based batteries have betterperformance, in particular in terms of…

[christec]

Tiamat produira à grande échelle de batteries sodium-ion en 2020 #ChrisTec #Lithium #Vitesse #LithiumionBattery En novembre 2015, le premier prototype de batterie sodium-ion a été conçu par des chercheurs du CNRS, du CEA et des universités françaises regroupés au sein du RS2E. Ce prototype était au format « 18650 », un format standard utilisé pour les batteries lithium-ion. Cette année, la start-up Tiamat a été créée pour concevoir, développer […] #Lithium #Vitesse #LithiumionBattery

[docshaner-blog1]

Justgoshoot has partnered with @gradolabs to bring you another great photo challenge. : : #Gradolabs Will be giving away there Mahogany Grado RS2e handcrafted headphones. For this challenge... we want you to bring out your best newest shots you have. : : To qualify ... Post your best photos of anything you like and you MUST TAG it 👉 #justgoshoot_Gradolabs and #Gradolabs 🔺these tags are mandatory🔺you will not be considered if you don't use them. We would prefer if you tag new photos. We would like you to get creative and show your fresh shots. : : The deadline .... Starts Today ends- May 10th 2015 5:00pm est. winner will be announced the week after that. This challenge is open to everyone. : : @GradoLabs is a Brooklyn based family owned company that hand makes headphones and cartridges since 1953. Please go and support them because they make things like this possible. they are also very active in the Instagram community . The VP is also a photographer . so you should definitely check him out as well @jongrado : ; Justgoshoot offers daily features, supportive community and a diverse array of talent! Don't forget to tag #justgoshoot for your chance to be featured .. Don't forget to check us out on tumbler justgoshoot.net and Twitter @justgoshoot : : Levitating headphones shot by @JonnelleMonzon #adventure #photo #followback

[ceogear-rocks-blog]

Grado Reference Series RS2e Open Back On-Ear Headphone

New Post on CEO Gear:

Grado Reference Series RS2e Open Back On-Ear Headphone

RS2e carries similar iconic Grado design with genuine wood and leather as its bigger brother, the RS1e, and is handcrafted in Grado’s factory in Brooklyn, New York as well.

[fuokdi-leens]

Grado RS2e Reference Series Over-Ear Headphones

Price 355.0 USD 34 Bids. End Time: 2017-06-11 17:33:08 PDT http://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=2&toolid=10044&campid=5337506718&customid=&lgeo=1&vectorid=229466&item=172713292289 from Headphones http://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=2&toolid=10044&campid=5337506718&customid=&lgeo=1&vectorid=229466&item=172713292289 via IFTTT

[earbudsshop]

Grado Reference Series RS1e Headphone

Ever wondered what hardcore audiophiles are hearing, and that you might be missing? The Grado RS1e is the point of no return so be warned, cross this threshold and you’ll never enjoy mass-market headphones again. Once you’ve experienced this elegant audio masterpiece you’ll grasp the reference.

… They excel at giving your music real definition, and they have one of the silkiest presentations at the high end that I’ve heard in a set of on-ear headphones. I found they did real justice to almost any music I fed them, and they’re beautifully balanced at medium to full listening levels. Another win for Grado. – Woody Sherman

The new RS1e from Grado uses a different species of handcrafted mahogany from our previous models. The earpieces utilize an intricate curing process that optimizes the tonal quality while giving them a new look. The RS1e places a 50mm dynamic transducer and an 8 conductor cable design in an open-air configuration. The result is a smooth, controlled, and coherent sound with detailed dynamics. Frequency response ranges from 12-30 kHz and the drivers are matched to 0.05dB. Weighing 9oz, the headphones are an example of the wonders of Mother Nature with a gorgeous light mahogany look. The RS1e is a masterpiece in the Grado collection.

“The only headphones you’ll ever need.” – Playboy 4OurEars is the exclusive Grado Authorized Amazon Reseller Open Back design delivers full sound stage Includes 6.5mm adapter and extension cable Drivers are matched to 0.05dB. Weighing 9oz 50mm dynamic transducer and an 8 conductor cable

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Price for all: $739.93

This item: Grado Reference Series RS1e Headphone

$695.00

Grado Mini Adaptor

$14.95

Ear Zonk - Replacement Grado Headphone G Cushion - Fits GS1000i, GS1000e, PS1000, PS1000e & More - Pair in Black

$19.99

Ear Zonk - Replacement Grado Headphone L Cushion - Fits Grado 225i, 225e, 325is, 325e, RS2i, RS2e, RS1i, RS1e & More - Pair in Black

$9.99

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[magicsoundblog]

Grado RS2e

Cuffia dinamica allo stato dell’arte - Padiglioni in legno - Conduttore bobina UHPLC - 32Ω