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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 adding particulate filters to gas engines

Volkswagen is working hard to overcome the PR disaster that is its diesel emissions scandal, and part of its efforts is focusing, weirdly, on petrol engines. Starting in June 2017, the embattled German automaker will add particulate filters to the gas-powered Volkswagen Tiguan and Audi A5. The change will eventually impact nearly every direct-injected gas engine the VW Group makes. Audi? Particulate filter. Seat? Particulate filter. Even Bentley is going to get the tech, all in a bid to reduce soot emissions by 90 percent. In fact, by 2022 VAG expects 7 million of its vehicles to boast the emissions-cleaning tech, which has long been a fixture on diesel engines. "Following increases in efficiency and lower CO2 output, we are now bringing about a sustained reduction in the emission levels of our modern petrol engines by fitting particulate filters as standard," Volkswagen Group research and design boss Dr. Ulrich Eichhorn said in a statement. "In the future, all models will be equipped with the latest and most efficient SCR catalytic converter technology." VW's initial rollout focuses on the 1.4-liter, turbocharged Tiguan and the 2.0-liter, turbocharged A5. Considering the popularity of the 2.0-liter across the VW range, we'd expect it's only a matter of time before VW expands its particulate filters tech to additional gas-powered vehicles. Related Video:

Recharge Wrap-up: Arcimoto SRK video, BAIC EV at CES

Kelley Blue Book took a spin in the Arcimoto SRK three-wheeled EV at CES in Las Vegas. In the video above, KBB Managing Editor Micah Muzio gets behind the handlebars for a spin around an empty parking lot. He notes a gradual throttle tip-in, though from the video, it appears the trike has a bit of pep. While the hydraulic brake pedal requires a bit of extra effort, the regenerative brake lever located on the right handlebar is effective and easy to use. The steering is a little heavy, but manageable, at low speeds. He calls it "kind of a fun little conveyance," adding, "Maybe this is the future." See the full review in the video above. CARB Chairman Mary Nichols spoke with German television about Volkswagen's emissions scandal. In a photo she posted on Twitter, Nichols can be seen in front of cameras with CARB's test bay in the background. In the bay is a Volkswagen Jetta TDI. She says in her tweet, "Discussing VW cheating case w/German TV in front of ARB lab test bay & '07 diesel Jetta. Time to move on to #EVs!" Late last year, a group of environmentalists and Silicon Valley leaders – Elon Musk included – sent Nichols an open letter suggesting CARB help urge Volkswagen to give up on diesels and focus on electric vehicles. See Nichols's post on Twitter. South Korea's most popular EV is the Renault Samsung Motors (RSM) SM3 ZE (also known as the Renault Fluence ZE). The all-electric vehicle has sold 1,767 units since its arrival in Korea since November 2013, with 2015 sales reaching 1,043 units. This makes one in three EVs in Korea a RSM SM3 ZE. The car has been selected as Korea's official government vehicle, and RSM has supplied over 100 EV taxis, 60 of which are in Seoul. Read more in the press release from Renault. BAIC EV announced it has established an R&D center in Detroit at CES. It will work with its other centers in Silicon Valley and Aachen, Germany in order to develop automotive technology and evaluate global demand. The EV branch of the Chinese automaker also debuted its i-Link information system, which uses 4G to connect car telematics to the cloud. The i-Link system also provides wireless phone charging, remote inquiry services and connects sensing technologies to the internet. Read more in the press release below.