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Chevy Bolt EV's battery shows big improvements over Spark's

Plug-in vehicle battery technology moves fast, and all you need to do to see this in action is to take a look at the new 60-kWh lithium-ion pack inside the 2017 Chevy Bolt EV. Well, you need to do that and then compare it to the battery packs inside of GM's other plug-in vehicles. And you don't even to go as far back as the EV1 to see progress. Let's start with what we know about the new Bolt's pack. It is supposed to drive the Bolt EV over 200 miles on a full charge. It weighs 960 pounds and is made up of 288 cells. Chevy's other all-electric car, the limited-availability Spark EV, had a 19-kWh pack and offered 82 miles of range. It had 192 cells and weighed 474 pounds. So, in the few years since the Spark EV was released, GM engineers have figured out how to get three times the energy capacity and almost two-and-a-half times more range out of a pack that weighs only about twice as much. And that doesn't even get to the price drops. GM has figured out how to get 3x the energy capacity and almost 2.5 times more range out of a pack that weighs only twice as much. Speaking of those 288 cells, that number might sound familiar to regular readers because that's exactly how many are in the new Chevy Volt. But the packs in the Volt and the Bolt are entirely different beasts. For one thing, while the Volt cells are made by LG Chem in Holland, MI, LG Chem will make the Bolt's cells in South Korea. The cell chemistries are also different. We spoke with GM engineer Tim Grewe (again) and while he declined to answer some of our Bolt battery pack questions until more details are unveiled at the SAE World Congress in April, he was able to explain a few things. "The cell inside the Chevy Bolt EV was specifically designed for EV range so it's up on energy," he said. "That's a different cell chemistry than on the extended range Chevy Volt, which is a smaller pack, smaller energy but more power per cell. We work with all of those vehicle requirements and customer demands and we say how do we meet this and we change the chemistry to make it all work." Comparing the 60 kWh in the Bolt and the 18.4-kWh pack in the Volt is really one of those apples to oranges issues, he said. "If you look at the Volt battery pack, how it went from where it was and where it's up to, from 38 miles to 50 miles, that was basic, overall industry improvement. Now, the 18 [kWh] to the 60 [kWh] is extended range vs. EV.

Chevy Bolt meets 2016 Nissan Leaf at LA NEDW event [UPDATE]

The 2015 National Drive Electric Week kicked off this past weekend with events happening all around the world. Our friends from Plug In America (PIA) send us some notes and pictures from one of the larger events in Los Angeles, CA. This event was special because it saw the debut of the 2016 Nissan Leaf and the west coast debut of the Chevy Bolt concept. The two electric vehicles were in the same place at the same time for the first time ever. Besides that little bit of electric vehicle history, the organizers helped facilitate 800 test drives, PIA co-founder Zan Dubin Scott told AutoblogGreen. The city of Los Angeles also gave proclamations to movie director Chris Paine (Who Killed The Electric Car? and Revenge Of The Electric Car) and the three national organizers of Drive Electric Week: PIA, the Sierra Club and the Electric Auto Association. Speakers at the event included names that should be familiar to AutoblogGreen readers: California state senator Kevin de Leon, race car driver Leilani Munter, and Dave Barthmuss of General Motors, among others. Joel Levin, the executive director of Plug In America, said during his speech that, "Electric cars are changing the world. Every time one of these vehicles gets sold, our air gets a little cleaner. We will take a big bite out of climate change. Our economy will not be subject to wild swings in gas prices. And we will not be involved in foreign wars over oil." Tell us about your own NEDW events (that happened already or are about to happen) in the Comments below. UPDATE: We received the text of Andrew Speaker's comments at the event. Speaker is Nissan's director of Electric Vehicle (EV) Sales & Marketing. We've included them below. Thank you, and good afternoon! On behalf of Nissan, we are proud to sponsor National Drive Electric Week, and we're excited to be able to celebrate it here in Los Angeles with all of you. This is actually my first National Drive Electric Week event, and I am inspired by the level of enthusiasm here today, and seeing everyone's passion for electric vehicles first hand. Nissan has had some big news in the last few days with the introduction of the 2016 Nissan LEAF, which is the world's first affordable electric car to get more than 100 miles of range on a single charge. The 2016 LEAF offers a new 30 kWh battery with an EPA-rated 107 miles of range... and its making its global debut here in Los Angeles.

Chevy Volt owners log half a billion electric miles, 2015 production starts

As General Motors gets ready to start 2015 Volt production Monday, Chevrolet is looking back at some of the numbers that got the car to where it is today. The headline number is that Volt owners have collectively put more than a half-billion electric miles on their cars. The unsurprising upshot is that, if you went out and bought a Volt, you're pretty keen on getting as many electric miles out of it as possible. 90 percent of all Volt trips are done purely on electric power. The typical Volt driver goes 970 miles between fill-ups, GM says, and that means that 63 percent of all miles are done on battery power. General Motors executive director Larry Nitz gave AutoblogGreen a few more details on the usage habits of Volt drivers, including that 81 percent of commuting miles are electric. Two-thirds of US Volt drivers charge their vehicle 1.4 times a day, a clear indicator of drivers trying to maximize electric miles through opportunity charging. In fact, Nitz said, 90 percent of all Volt trips are done purely on electric power. GM also says that the Volt's official 35 miles of electric range is still doable for many owners who have had their car for more than 30 months. Looking ahead, we know that one upgrade for the 2015 Volt will be 4G LTE connectivity that can turn the car, like others in the GM family, into a mobile wifi hotspot. We're of course much more interested in when GM is finally going to start production of the next-gen Volt, but GM officials would only tell us that they're very excited about the still-secret vehicle, promising we'll be learning more "soon." Nitz did confirm that today's Volt drivers are most interested in three things from the next-gen model: more range, a lower price and a fifth seat. He did not say whether or not GM will be able to deliver on those requests. Chevrolet Volt Owners Surpass Half a Billion Electric Miles After 30 months of use, a sampling of Volts shows consistent all-electric range 2014-06-19 DETROIT – Since its launch in late 2010, Chevrolet Volt owners have accumulated more than half a billion all-electric miles. Additionally, based on a General Motors' study of more than 300 Volts in service in California for more than 30 months, many owners are exceeding the EPA-rated label of 35 miles of EV range per full charge, with about 15 percent surpassing 40 miles of range.