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VW decides against active-cooling system for e-Golf lithium battery

When the 2015 VW e-Golf was introduced at the LA Auto Show last year, VW said it would come with a water-cooled battery. During the Detroit Auto Show, when the car was trotted out again, VW released a new press release that stripped out the "water-cooled" language, but this change went unnoticed. During a recent VW event in Germany, a friend from Green Car Reports realized that the battery on display did not seem to have any water-cooling mechanisms. That set us off on a bit of a sleuthing and we have now learned that VW is not going to include any active cooling in the upcoming e-Golf. In fact, the company is entirely confident that this car - because of what it's designed to do - doesn't need it. "The need for a cooling system wasn't there" - VW's Darryll Harrison VW has been working on an electrified Golf for ages now, and so changes to the plan are to be expected. But battery cooling is vitally important not just to keep the car operating properly but because when things get too hot, there can be serious public relations problems. Nissan began testing a new battery chemistry for the Leaf in 2013 after an uproar from warm-weather EV drivers in Arizona who were experiencing worse-than-expected battery performance. The Leaf has always used an air-cooled battery, which is another way to say that there is no active cooling system (more details here). Tesla CEO Elon Musk once said this approach is "primitive." So, why is VW following the same path? We asked Darryll Harrison, VW US's manager of brand public relations west, for more information, and he told AutoblogGreen that VW engineers discovered through a lot of testing of the Golf Mk6 EV prototypes, that battery performance was not impacted by temperatures when using the right battery chemistry. That chemistry, it turns out, is lithium nickel manganese cobalt oxide (NMC) in cells from Panasonic. These cells had "the lowest self-warming tendency and the lowest memory effect of all cells tested," Harrison said. He added that VW engineers tested the NMC cells in places like Death Valley and Arizona and found they didn't warm very quickly either through operation, charging (including during fast charging) or through high ambient temps. "The need for a cooling system wasn't there," Harrison said.

VW says it has sold over 100,000 TDI diesels in America this year

Volkswagen Group of America has lit oil-burning fireworks to celebrate the sales of more than 100,000 TDI Clean Diesel vehicles in the US between its VW and Audi brands this year. According to VW, that means it is responsible for more than 75 percent of diesel-engined cars and SUVs sold here - perhaps not surprising when the two brands offer a total of 12 diesel models.
What might be surprising is that the number of diesels isn't far off the estimated sales of 90,000 battery electric vehicles and PHEVs, with 15,000 of those accounted for by the Tesla Model S, another 12,000 or so being the Toyota Prius PHEV.
VW's keen to play up the ease of making diesel part of your life, stressing that it doesn't need any change to the refueling infrastructure and that "this is a technology delivering real answers to society's concerns about fuel consumption and greenhouse gas emissions without compromises."

Volkswagen Group sales down 15% in pandemic year, but EV sales up 214%

FRANKFURT, Germany — German automaker Volkswagen said its global sales fell 15.2% during 2020 due to the COVID-19 pandemic but showed significant recovery toward the end of the year. The company more than tripled its sales of battery-only vehicles. Global sales for all of Volkswagen's brands amounted to 9.3 million vehicles. The fourth quarter showed a smaller decline of 5.7% and within that quarter the month of December was still further improved, showing a shortfall of only 3.2% from the same period the year before. Volkswagen said Wednesday that sales fell the most in Western Europe, by 21.6%, while China, the company's largest single market, was down 9.1% Sales of battery-only cars jumped 214% to 231,600 from 73,700 across all the company's brands. The company's electric sales leaders included the Volkswagen ID.3 compact, with 56,500, the Audi E-Tron SUV with 47,300, and the high-end Porsche Taycan with 20,000. Volkswagen said that its sales fell by less than the overall market, meaning it had slightly expanded its market share. “The COVID-19 pandemic made 2020 an extremely challenging year,” said group sales chief Christian Dahlheim. “The Volkswagen Group performed well in this environment and strengthened its market position." Volkswagen Group's brands include Volkswagen, Audi, Porsche, SEAT, and Skoda as sell as truck makers MAN and Scania.