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Samsung SDI to Boost Supply of BMW i3 & i8 battery cells

The BMW Group and Samsung SDI plan to expand their supply relationship for battery cells for electro-mobility. The two companies signed a memorandum of understanding (MoU) to this effect today in Seoul. Samsung SDI will supply the BMW Group with battery cells for the BMW i3, BMW i8 and additional hybrid models over the coming years. The most important elements of the agreement are the increase in quantities delivered over the medium term, in response to growing demand for electro-mobility, and further technological development of battery cells.

Dr. Klaus Draeger, member of the Board of Management of BMW AG, responsible for Purchasing and Supplier Network: “Our partnership with Samsung SDI is a good example of successful Korean-German cooperation on innovative technologies. The battery is a key component in every electric vehicle – since it basically determines the range and performance capabilities of the car. In Samsung SDI, we have chosen a supplier that offers us the best-available technology with future-oriented Korean battery expertise.”

Sang-Jin Park, CEO of Samsung SDI: “I am very proud that Samsung SDI supports the success of the BMW i3 and i8. The decision taken in 2009 to choose lithium-ion battery cells from Samsung SDI for the BMW i models was the right one for both companies. Additional BMW vehicles will also be equipped with Samsung SDI’s leading lithium-ion technology. This MoU with the BMW Group demonstrates the trust in Samsung SDI’s future technology and efficient mass production capabilities. Both companies are confident that this extended partnership will secure their leadership in future technologies.”

The partnership with Samsung SDI since 2009 provides the BMW Group with access to state-of-the-art lithium-ion battery technology. Another important factor in the choice of Samsung SDI was that the company considers the suitability of lithium-ion battery cells for environmentally-friendly production and subsequent recovery of materials during product development. Complete high-voltage batteries for the BMW i3, BMW i8 and other future hybrid vehicles are built on an ultra-modern assembly line at BMW Plant Dingolfing. The only supplied parts are the cells – otherwise the high-voltage batteries are developed and produced completely in-house, building on experience with earlier batteries developed in-house for models, such as the BMW ActiveHybrid 3 and 5 and the BMW ActiveE, with further optimisation.

The extension of the collaboration with Samsung SDI underscores the BMW Group’s strategy of further electrification. Continuation of the partnership also confirms the success of BMW i. Customer demand for the BMW i3 remains high. In addition, in the first half of 2014 the BMW Group has already sold around 5,400 BMW i3 cars.

Deliveries of the BMW i8 got underway in the main international markets in June. Demand is already significantly higher than the planned production volume for the ramp-up phase.

South Korea is also an important supplier market for the BMW Group, beyond the partnership with Samsung SDI. For this reason, the company opened a local purchasing office in 2009. In 2014, the purchasing volume in this market will exceed 300 million euros – a significant increase over the previous year, with sourcing volumes continuing to climb over the coming years. The BMW Group relies on a total of 20 South Korean suppliers. South Korea will be one of the key purchasing markets for the BMW Group in the future, especially for innovative IT technologies.

The BMW Group has operated its own subsidiary in South Korea since 1995. This commitment was expanded in 1998 with the opening of a logistics and training centre. BMW Financial Services has also been active in South Korea since 2001. On 14 July 2014, the BMW Group opened its only combined brand and driving experience centre worldwide currently, in the vicinity of Seoul airport. In 2013, the BMW Group was market leader in South Korea’s premium segment for the sixth consecutive year, with the sale of 39,367 BMW and MINI vehicles – an increase of 13.4% from 2012. A total of 1,328 BMW motorcycles (+27.6%) were also delivered to customers. In the first half of 2014, sales reached 21,972 units (+19,3% compared to prev. yr.). BMW South Korea employs a total workforce of 230 people.

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Exagon Furtive-eGT electric supercar ready for production

The Furtive-eGT has been around in concept form since 2010 and a few may even have been delivered, but now Exagon appears ready to go into serial production.

The Exagon Furtive eGT electric supercar is powered by a pair of 300 kW Siemens electric motors that combined have the potential to deliver up to 600 kW / 516 Nm, the car is exceptionally rapid. Power is transferred to the rear wheels and Exagon says throttle response is virtually instantaneous, delivering a 0-100km/h sprint of just 3.5 seconds, faster than a Tesla Roadster.

The car has a top speed of 250km/h and the electric motors are energised by a hefty 53kWh lithium-ion battery which provides a range of around 300km but Exagon will option a small range-extender engine to charge the batteries on the run, which gives the car a theoretical 730km range.

The Exagon Furtive eGT has four seats and features a monocoque light carbon fiber body, which weighs an astonishingly low 124 kg. The manufacturer is also offering a wide selection of personalization options, while the price and availability are set to be announced at a later date.

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Tesla Model S P85 Dyno Run gets 436 HP @ the wheels [VIDEO]

Tesla owner Emmanuel Chang had his 2013 Black Tesla Model S P85 dyno tested on a mobile CCMR Dynojet recently at some generic car show.

The Model S P85 is officially rated 416 HP at the motor shaft. This particular combination of dyno and P85 recorded 436 HP at the wheels. (there is usually a significant drivetrain loss between motor and wheels)

A few details regarding this test:

  • 1) The tech couldn't attach a sensor to the motor's crank so "engine rpm" has to be recalculated as he took the wheel RPM (so multiply the RPM by 1000, then by 9.71 *approx*)

  • 2) The dyno maxed out at 2000 lbs·ft but math from the specs indicates 4301 lbs·ft at the wheels.

  • 3) Horsepower and torque number are inaccurate as the car smoked the tires on the dyno's drum so the wheels were not spinning 1:1 for the computer to measure accurately, basically it has slightly more power than what the computer thinks it has.

    Source: TMC

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    Sand-based lithium ion battery improves energy density 3x

    Researchers at the University of California, Riverside’s Bourns College of Engineering have created a lithium ion battery that outperforms the current industry standard by three times. The key material: sand.

    “This is the holy grail – a low cost, non-toxic, environmentally friendly way to produce high performance lithium ion battery anodes,” said Zachary Favors, a graduate student working with Cengiz and Mihri Ozkan, both engineering professors at UC Riverside.

    The idea came to Favors six months ago. He was relaxing on the beach after surfing in San Clemente, Calif. when he picked up some sand, took a close look at it and saw it was made up primarily of quartz, or silicon dioxide.

    His research is centered on building better lithium ion batteries, primarily for personal electronics and electric vehicles. He is focused on the anode, or negative side of the battery. Graphite is the current standard material for the anode, but as electronics have become more powerful graphite’s ability to be improved has been virtually tapped out.

    Researchers are now focused on using silicon at the nanoscale, or billionths of a meter, level as a replacement for graphite. The problem with nanoscale silicon is that it degrades quickly and is hard to produce in large quantities.

    Favors set out to solve both these problems. He researched sand to find a spot in the United States where it is found with a high percentage of quartz. That took him to the Cedar Creek Reservoir, east of Dallas, where he grew up.

    Sand in hand, he came back to the lab at UC Riverside and milled it down to the nanometer scale, followed by a series of purification steps changing its color from brown to bright white, similar in color and texture to powdered sugar.

    After that, he ground salt and magnesium, both very common elements found dissolved in sea water into the purified quartz. The resulting powder was then heated. With the salt acting as a heat absorber, the magnesium worked to remove the oxygen from the quartz, resulting in pure silicon.

    The Ozkan team was pleased with how the process went. And they also encountered an added positive surprise. The pure nano-silicon formed in a very porous 3-D silicon sponge like consistency. That porosity has proved to be the key to improving the performance of the batteries built with the nano-silicon.

    The improved performance could mean increasing the expected lifespan of silicon based electric vehicle batteries up to three times or more, which would be significant for consumers, considering replacement batteries cost thousands of dollars. The energy density is more than three times higher than that of traditional graphite based anodes, which means cell phones and tablets could last three times longer between charges.

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    Record Breaking Mitsubishi Electric Vehicle Run at Pikes Peak [VIDEO]

    Record Breaking Mitsubishi Electric Vehicle Run at Pikes Peak by Greg Tracy.

    Tracy climbed Pikes Peak in the Mitsubishi I-MiEV Evolution III and shatters Monster Tajima's 2013 Electric Modified Class record by 38 seconds with a 09.08.188 record time.

    Greg Tracy came in 2nd overall beating everyone in the competition except for overall winner Romain Dumas in his Honda powered 2013 Norm racer.

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    BMW, Daimler Jointly Developing Wireless Inductive Charging Standard

    Driving pleasure and sustainability are fused together in unprecedented fashion in the all-electric BMW i3 and the BMW i8 plug-in hybrid sports car. Their high-voltage batteries can be recharged quickly and easily by means of the BMW i Wallbox that forms part of the 360° ELECTRIC portfolio. This sophisticated charging station with fast-charge facility for feeding cars with power either at home or at work underlines the all-embracing approach adopted by the BMW i brand when it comes to developing products and services for sustainable mobility of premium calibre.

    In the process, the BMW Group has assumed a pioneering role in this field and is therefore pressing keenly ahead with the development of innovative technologies for making driving with zero tailpipe emissions more and more attractive. Systems for inductive charging of high-voltage batteries are the next step forward for energy supply. The development objective in the medium term is to put reliable, non-wearing and user-friendly solutions for inductive charging into production that have been tailored to both the batteries in the BMW i cars and the high-voltage batteries in future plug-in hybrid models from the BMW Group.

    The crucial advantage of inductive power supply over conventional charging stations is the cable-free connection between the supply point and the vehicle’s high-voltage battery. Carmakers Daimler and the BMW Group have signed an agreement on the joint development and implementation of a standardised technology for inductive charging of electric cars and plug-in hybrid vehicles. The system consists of two components: a secondary coil in the vehicle floor as well as a base plate with integral primary coil that is located underneath the car, for example on the garage floor. The arrangement of the coils, and consequently of the field pattern, is based on a design derived from their circular shape that offers a number of crucial benefits.

    These include the extremely compact and lightweight construction along with effective spatial confinement of the magnetic field. The electrical energy is transmitted via an alternating magnetic field generated between the coils, contact-free, without charging cables and at a charging rate of 3.6 kW. With an efficiency factor of over 90 percent, this method enables the high-voltage batteries in vehicles to be charged efficiently, conveniently and safely.

    A further development target is to minimise the charging time for contactless power transmission. At a charging rate of 3.6 kilowatts, the high-voltage batteries in many plug-in hybrid vehicles can be fully charged in under three hours. It takes less than two hours to charge the BMW i8 using a fully working prototype of an inductive charging station. In order to make allowance for the higher storage capacities of high-voltage batteries in pure-electric vehicles, the future technology standard also foresees the possibility of increasing the charging rate to 7 kW. This ensures that the battery in the BMW i3 could still be fully charged overnight when using the inductive system.

    Inductive charging makes life considerably easier for the driver of an electric or plug-in hybrid vehicle, as there is no need to connect any cables to top up the power reserves. Once it has been correctly positioned above the primary coil, the driver can simply start the charging process at the push of a button using the vehicle’s own operating system. Data is transmitted via a WiFi connection between vehicle and charging station to help the driver even with parking.

    The inductive charging facility can be used regardless of the weather conditions. Not even rain or snow has a negative effect on the power feed as all of the system’s conductive components are protected, which means the primary coil can even be installed outdoors. During charging, ambient electromagnetic radiation is also kept to an absolute minimum. The space between the primary and secondary coils is permanently monitored, allowing charging to be halted instantly if any foreign bodies are detected.

    As with today’s BMW i Wallbox, the inductive power supply systems of the future will also make it possible to activate and monitor the charging process from a smartphone. The relevant smartphone app will let drivers call up the data transmitted online on the battery’s charge status, for instance, or the time remaining until charging is complete.