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VW quite interested in solid-state batteries for EVs

Volkswagen is about to make a decision about which advanced battery technology the automaker will seriously investigate to give its electric vehicles more range. VW will decide by July if it will use solid-state batteries made by US-based QuantumScape Corp. in future EVs, according to Bloomberg News. Last year, VW bought a five-percent stake in QuantumScape, which was founded by ex-Stanford University researchers. The lure is that QuantumScape's solid-state batteries may provide a single-charge range of as long as 430 miles. That's more than three times the current range of the VW e-Golf electric vehicle the company recently started selling to the public and is substantially longer than the single-charge range of the Tesla Model S electric sedan. The batteries are also fireproof, making VW's potential decision one with an eye towards more vehicle safety. Solid-state battery technology, in which solid lithium electrodes are used instead of liquid electrodes such as those in lithium-ion batteries, are the subject of research at other automakers and suppliers as well. Toyota says they could be here by 2020. Recently, the cordless vacuum cleaner maker Dyson acquired a $15-million equity stake in Michigan-based battery maker Sakti3 with the idea of using the startup's solid-state batteries in its products. General Motors also has a minority stake in Sakti3, which was spun off from the University of Michigan.

West Virginia researcher describes how Volkswagen got caught

The cheating scandal engulfing the world's largest automaker started with a road trip. In the spring of 2014, researchers from West Virginia were evaluating the tailpipe emissions of diesel cars made for the American market by European manufacturers, something never before studied in the academic realm. Excited by the prospect of breaking new ground, the team of two professors and two students wanted to gather as much data as possible. "And being academics, we went a little overboard," said Arvind Thiruvengadam, one of the students. "Being academics, we went a little overboard." Overboard included driving the cars for more miles than they needed to test and verify results. Drivers put about 1,500 miles on each of the first two cars in the study, a Volkswagen Jetta and BMW X5, along California roadways. For their final car, a Volkswagen Passat, they wanted even more mileage. So they took the car on a road trip from Los Angeles to Seattle and back again, collecting data from more than 2,000 miles of testing. The road trip was Volkswagen's undoing. When the West Virginia team returned to Los Angeles, they were befuddled by the test results. In theory, the Passat should have spewed the lowest levels of pollutants among the three cars. Equipped with the more modern selective catalytic reduction technology, the team expected to find minimal levels of nitrogen oxide. But the car, which had been certified at a California Air Resources Board facility prior to the start of the road trip, had elevated levels of NOx that were 20 times the baseline levels established beforehand. The researchers, comprised of professors Gregory Thompson and Dan Carder and students Marc Besch and Thiruvengadam, knew their on-board equipment functioned properly because, early in their research, they had double-checked its accuracy after recording sky-high NOx readings from the Jetta that showed 30 times the level of its baseline testing at the CARB facility. It was particularly noteworthy because the Jetta contained the first-generation Lean NOx Trap technology, not the more efficient SCR, yet both produced large discrepancies. The BMW, on the other hand, performed as expected. Today, Thiruvengadam is careful to say the research team never suspected Volkswagen of cheating on emissions testing, nor did the researchers report such a finding. They merely reported their findings to CARB officials who then further investigated.

VW recalling 38k Jettas, Passats, Golfs and Beetles for fuel leak

Earlier we reported on a recall issued for the 2015 VW Jetta regarding a problem with the headlights, and now Volkswagen and the National Highway Traffic Safety Administration have issued another recall for a separate issue affecting not only the Jetta, but several other models as well. The issue revolves around a sealing cap in the fuel rail, which could leak fuel into the engine compartment and potentially cause a fire. The problem affects an estimated 37,979 vehicles in the United States, including the 2014-15 Jetta (manufactured between March 28 and November 24, 2014), the 2014-15 Passat (April 7 to November 18), the 2015 Golf and GTI (July 1 to November 20) and the 2014-15 Beetle and Beetle Convertible (March 31 to November 27). That covers pretty much the entire range offered by Volkswagen of America, short of the Tiguan and Touareg crossovers (and the discontinued Eos convertible). Considering, though, that VW routinely sells around 30,000 vehicles in the US each month, the small number of vehicles being recalled (relative to the quantity out there) tells you this recall really only affects a specific cross-section of models. Owners of the affected vehicles can expect to be contacted by their dealers to have the fuel rails replaced. RECALL Subject : Fuel Leaking Into Engine Compartment Report Receipt Date: DEC 22, 2014 NHTSA Campaign Number: 14V809000 Component(s): FUEL SYSTEM, GASOLINE Potential Number of Units Affected: 37,979 Manufacturer: Volkswagen Group of America, Inc. SUMMARY: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2014-2015 Jetta vehicles manufactured March 28, 2014, to November 24, 2014, certain 2014-2015 Passat vehicles manufactured April 7, 2014, to November 18, 2014, certain 2015 Golf and GTI vehicles manufactured July 1, 2014, to November 20, 2014, and certain 2014-2015 Beetle and Beetle Convertible vehicles manufactured March 31, 2014, to November 27, 2014. A sealing cap at the fuel rail may fail, allowing fuel to leak into the engine compartment. CONSEQUENCE: A fuel leak, in the presence of an ignition source, can result in a vehicle fire. REMEDY: Volkswagen will notify owners, and dealers will replace the fuel rails with new parts, free of charge. The manufacturer has not yet provided a notification schedule. Owners may contact Volkswagen customer service at 1-800-822-8987. Volkswagen's number for this recall is 24Bi.