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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.

Which electric cars can charge at a Tesla Supercharger?

The difference between Tesla charging and non-Tesla charging. Electrify America; Tesla Tesla's advantage has long been its charging technology and Supercharger network. Now, more and more automakers are switching to Tesla's charging tech. But there are a few things non-Tesla drivers need to know about charging at a Tesla station. A lot has hit the news cycle in recent months with regard to electric car drivers and where they can and can't plug in. The key factor in all of that? Whether automakers switched to Tesla's charging standard. More car companies are shifting to Tesla's charging tech in the hopes of boosting their customers' confidence in going electric.  Here's what it boils down to: If you currently drive a Tesla, you can keep charging at Tesla charging locations, which use the company's North American Charging Standard (NACS), which has long served it well. The chargers are thinner, more lightweight and easier to wrangle than other brands.  If you currently drive a non-Tesla EV, you have to charge at a non-Tesla charging station like that of Electrify America or EVgo — which use the Combined Charging System (CCS) — unless you stumble upon a Tesla charger already equipped with the Magic Dock adapter. For years, CCS tech dominated EVs from everyone but Tesla.  Starting next year, if you drive a non-Tesla EV (from the automakers that have announced they'll make the switch), you'll be able to charge at all Supercharger locations with an adapter. And by 2025, EVs from some automakers won't even need an adaptor.  Here's how to charge up, depending on which EV you have:  Ford 2021 Ford Mustang Mach-E. Tim Levin/Insider Ford was the earliest traditional automaker to team up with Tesla for its charging tech. Current Ford EV owners — those driving a Ford electric vehicle already fitted with a CCS port — will be able to use a Tesla-developed adapter to access Tesla Superchargers starting in the spring. That means that, if you own a Mustang Mach-E or Ford F-150 Lightning, you will need the adapter in order to use a Tesla station come 2024. But Ford will equip its future EVs with the NACS port starting in 2025 — eliminating the need for any adapter. Owners of new Ford EVs will be able to pull into a Supercharger station and juice up, no problem. General Motors Cadillac Lyriq. Cadillac GM will also allow its EV drivers to plug into Tesla stations.

VW modular platform strategy goes all-in on EVs

The Volkswagen Group has already revealed or put on sale a broad slate of new electric vehicles: the E-up, the E-Golf (shown above), the Porsche 918 Spyder, the Panamera S E-Hybrid and the XL1. In 2014, there will be at least six more models, including the A3 Sportback E-Tron. And after that? Well, to hear Rudolf Krebs, Group Commissioner For Electric Vehicle Drive Systems, tell it, VW's future is full of plug-in goodness. "With our platform strategy, it is quite easy to bring a lot of electrified vehicles to the market for the different brands in a very short time," he said. "We try, with a minimum of those components, to produce a maximum number of variants of cars" That strategy starts with three platforms: MQB for small cars, MLB for midsize models and MSB for sporty and premium products (there's also the NSF for cars like the E-up). Speaking to AutoblogGreen, Krebs said VW has designed modules, things like engines and electric components (think: AC compressor, on-board chargers and battery management systems), to be used across all three platforms and across all brands all. "We try, with a minimum of those components, to produce a maximum number of variants of cars," he said. "This is only possible if, at an early stage of the design of new vehicles, we implement the idea that these cars are not only designed for gasoline and diesel powertrains but that we can also include CNG concepts, flex-fuel concepts, pure electric vehicles or plug-in hybrid vehicles. With minor changes in the body in white, we can produce those vehicles, bumper-to-bumper, in one factory." "VW wants to be the leader in the electrification of vehicles" In this way, customers can choose the powertrain that they want, or whatever powertrain their local regulations demand. Politicians have already put a lot of pressure on the automotive industry, with ever-stricter CO2 regulations coming into effect in all of the major markets. In the US, the fuel economy regulation numbers require the equivalent of 101 grams of CO2 emissions per kilometer by 2025. Europe, it's 95 grams by 2020. And China, which is asking for 118 grams by 2020, will be a tough scenario, Krebs said. Today, by optimizing conventional technologies and supporting things like CNG and biofuels, more than 300 VW Group models emit less than 120 g/km. A hundred of those are even under 100 g/km. But this is not sufficient, and VW admits that conventional powertrains will not be not enough.