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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.

Audi exec suspended over diesel scandal

So far, just one lower-level employee has plead guilty in the ongoing VW diesel scandal. Up high, the VW CEO when the scandal broke, Martin Winterkorn, resigned right after the news came out. Other executives have also quit or been suspended as well. Today, we learn that one more executive is feeling the heat a year into the scandal. Stefan Knirsch, the head of technical development at Audi and Audi board member, is going to be suspended from his position this week because of his ties to the technology that VW Group used to cheat emissions tests. The German newspaper Bild Am Sonntag reports that Knirsch not only knew that the cheating software existed but also lied about it under oath. Knirsch previously worked at Porsche and then Audi's electrification division. He left Audi's EV efforts behind in early 2015. News Source: ReutersImage Credit: REUTERS/Denis Balibouse/File Photo Government/Legal Green Audi Volkswagen Diesel Vehicles vw diesel scandal audi diesel diesel scandal

VW may move production because of Russia's cutoff of natural gas

Volkswagen AG is exploring ways to counter a shortage in natural gas, including shifting production around its network of global facilities, signaling how the energy crisis unleashed by Russia’s invasion of Ukraine threatens to upend EuropeÂ’s industrial landscape. Volkswagen, EuropeÂ’s biggest carmaker, said Thursday that reallocating some of its production was one of the options available in the medium term if gas shortages last much beyond this winter. The company has major factories in Germany, the Czech Republic and Slovakia, which are among European countries most reliant on Russian gas, as well as facilities in southern Europe that source energy from elsewhere. “As mid-term alternatives, we are focusing on greater localization, relocation of manufacturing capacity, or technical alternatives, similar to what is already common practice in the context of challenges related to semiconductor shortages and other recent supply chain disruptions,” Geng Wu, VolkswagenÂ’s head of purchasing, said in a statement.  RussiaÂ’s decision to throttle gas supplies to Europe has raised concerns that Germany might be forced to ration its fuel. Recent news that gas storage levels hit 90% ahead of schedule has soothed fears of acute shortages this winter, but Germany faces a challenge in replenishing depleted reserves next summer without contributions from Russia. Southwestern Europe or coastal zones of northern Europe, both of which have better access to seaborne liquefied natural gas cargoes, could be the beneficiaries of any production shift, a Volkswagen spokesman said by phone. The Volkswagen group already operates car factories in Portugal, Spain and Belgium, countries that host LNG terminals. Labor hurdles To be sure, any major production shift away from EuropeÂ’s biggest economy would face significant hurdles. VW has some 295,000 employees in Germany and worker representatives account for around half the companyÂ’s 20-member supervisory board. Any shift in production would likely involve a limited number of vehicles rather than wholesale factory shutdowns. While gas supplies for VWÂ’s plants are currently secured, the company has identified potential savings at its European sites to cut gas consumption by a “mid-double-digit percentage,” said Michael Heinemann, managing director of VWÂ’s power-plant unit. Still, the carmaker said it was concerned about the effect high gas prices could have on its suppliers.