Category: Electric Car News

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BMW i3 to have 200 Mile Lithium-Air Battery by 2017 [VIDEO]

At the recent launch of the BMW i3 lithium-ion battery-electric car, BMW board member Ian Robertson said that in the next three to four years there will be more progress in battery development than in the previous 100 years. He said electric cars will have batteries with twice the current power within four to five years, which will double the range.

We reported back in January that Toyota Motor Corp and BMW AG agreed to jointly research a lithium-air battery. Lithium-air battery has its anode filled with lithium, and cathode with air.

Lithium metal-air batteries can store more than 5,000 watt-hours per kilogram. (A123 M1 cells are around 120 wh/kg) That's more than forty-times as much as today's high-performance lithium-ion batteries, and more than another class of energy-storage devices: fuel cells.

The reduction in battery mass is achieved by eliminating the need for a second reactant inside the cell. Lithium metal batteries react with oxygen in the air that is pulled in through a 'breathing' casing, making them lightweight and compact.

The technology is being studied by researchers including IBM , which is working to develop a lithium-air battery that will let electric vehicles run 500 miles on one charge.

Given the recent new that General Motors is working on an EV that can go 200 miles (320 km) per charge at a cost of about $30,000 to compete with Tesla's as yet un-named 200 mile $30,000 EV due in approx three to four years, the 2016/17 model year promises to be a very exciting year for affordable, long range electric vehicles.

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Highlights from WEC Six Hours of Circuit of the Americas [VIDEO]

TOYOTA Racing fought a race-long battle for victory in the Six Hours of the Circuit of the Americas before taking second place in the fifth round of the FIA World Endurance Championship.

After six hours of intense racing in hot temperatures, the #8 crossed the finishing line just 23.617 seconds behind the race winner.

The TS030 HYBRID was able to get strong performance from the same set of tyres over two stints. This, combined with quick pit stops, reduced the amount of time the #8 needed to spend in the pits.

The next round is TOYOTA Racing's home race, the Six Hours of Fuji on 20 October where the team will have two cars competing as the #7 of Alex Wurz, Nicolas Lapierre and Kazuki Nakajima returns to action.

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Tesla Model S is Norway’s top-selling car in September

The newly landed Tesla Model S, after a market presence of less than two months, has already topped Norway’s best-sellers' list during the opening two week’s of this month, comfortably outselling all other cars, regardless of fuel type, accounting for 6.2 per cent of all the new cars sold in Norway.

Hot on the heels of recording 184 registrations in its debut month in Norway, registrations of the Model S in Norway hit a chart-topping 322 units to bulldoze Volkswagen’s conventionally powered Golf (256 units) out of first place by a substantial sales margin, according to AID compiled data.

The number eight slot went to Nissan’s LEAF, Norway’s most popular electric car so far this year. Both fully-fledged electric cars have captured a combined market share of 9.1 per cent.

1) Tesla Model S – 322
2) Volkswagen Golf – 256
3) Toyota Auris
4) Mazda CX-5
5) Volvo V40
6) Skoda Octavia
7) Toyota RAV4
8) Nissan LEAF

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Dutch Students Break EV Acceleration Record 0-100 km/h in 2.13 sec [VIDEO]

Dutch students today reset the Guiness world record for acceleration 0-100 km/h, in the category for electric cars. The Delft University of Technology Racing Team used their 2012 All-Wheel-Drive 148 kg Formula Student DUT12 to accelerate from zero to 100 km/h in just 2.13 seconds at Valkenburg Airport.

The Formula SAE car has a four wheel drive powertrain with a 26 kw / 27 Nm motor driving each wheel giving a total peak power output of 104 kw. The front motors are out-board and drive through a 1:7 Planetary gear system. The rear motors are in-board and drive the wheels via a 1:13 two-stage spur gear system with carbon fiber half-shafts.

The Delft Team first prepared the ground by pouring a solution of sugar in water over the track, and heating it with a gas-burner. All rubble was removed and a plastic sheet was put over the track to keep it dry. Additionally, tire warmers were used on the car, the driver was the team's lightest member, Marly Kuijpers, and the the run was repeated ten times with traction control and tire slippage tweaked within the four motor controllers via the CAN bus ECU for each run.

The team says that rule changes make 2013 and 2014 Formula Student cars less likely contenders for future acceleration records. For one thing they will have high downforce wings, which add drag, and larger batteries, adding weight. The heavier machines are unlikely to reach a new record, so Delft may well hang on to the top spot longer than another student team, which held its record just over a year.

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Molten-air battery offers up to 45x higher storage capacity than Li-ion

Researchers at George Washington University have demonstrated a new class of high-energy battery, called a "molten-air battery," that has one of the highest storage capacities of any battery type to date. Unlike some other high-energy batteries, the molten-air battery has the advantage of being rechargeable.

Although the molten electrolyte currently requires high-temperature operation, the battery is so new that the researchers hope that experimenting with different molten compositions and other characteristics will make molten-air batteries strong competitors in electric vehicles and for storing energy for the electric grid.

This ability to store multiple electrons in a single molecule is one of the biggest advantages of the molten-air battery. By their nature, multiple-electron-per-molecule batteries usually have higher storage capacities compared to single-electron-per-molecule batteries, such as Li-ion batteries. The battery with the highest energy capacity to date, the vanadium boride (VB2)-air battery, can store 11 electrons per molecule. However, the VB2-air battery and many other high-capacity batteries have a serious drawback: they are not rechargeable.

The researchers experimented with using iron, carbon, and VB2 as the molten electrolyte, demonstrating very high capacities of 10,000, 19,000, and 27,000 Wh/l, respectively. The capacities are influenced by the number of electrons that each type of molecule can store: 3 electrons for iron, 4 electrons for carbon, and 11 electrons for VB2. In comparison, the Li-air battery has an energy capacity of 6,200 Wh/l, due to its single-electron-per-molecule transfer and lower density than the other compositions while a typical Li-Ion battery has a capacity of approx 600 Wh/l.

Source: Phys.org

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Buckeye Bullet 3 Delayed in Bid to become first 400 MPH EV [VIDEO]

The Buckeye Bullet is a collaboration between Ohio State University and Venturi, and although due to the flooding of Bonneville salt flats (Utah, USA), the FIA and the organizers of the world speed records program decided to cancel the competition for this year, the team were targeting a 400 MPH (640 km/h) world land speed record for electric cars.

The car, called VBB-3, is actually the third “Buckeye Bullet” land speed record car. Driver Roger Schroer took the VBB-2.5 to 307.58 mph in 2010, giving him the current FIA world record.

VBB-3 is powered by four electric motors, which generate 400 horsepower each (750 hp Peak) with energy storage provided by 2,000x prismatic A123 batteries that weigh 1600 kg. The 3.2 ton Carbon fiber skinned vehicle can output a total of more than 2 Megawatts (3,000 hp) which, when combined with a drag co-efficient of only 0.13, the team hope is sufficient to re-write the EV Land Speed Record.

To break the record, the electric car must travel at least one mile and average two runs within an hour. The student team hopes that the new car will break 400 mph, something no electric car has achieved, but this will now have to wait till 2014.