AndyH wrote:Here's an old video that shows a bit more of the battery construction and a cut-away of the major systems. Battery closeups at 1:04.
liveforphysics wrote:I've managed to convince my mom to buy one of these Nissan Leaf's the moment they become available for sale.
[Nissan] PRESS RELEASE
Type: Laminated lithium-ion battery
Total capacity (kWh): 24
Power output (kW): Over 90
Number of modules: 48 [each containing 4 cells, so 192 total]
Battery pack contents:
-Positive electrodes Ã¢â‚¬â€œ Lithium manganate
-Negative electrodes Ã¢â‚¬â€œ Carbon
-Quick charger DC50kW (0 to 80%): apx. 30 min
-Home-use AC240V charging dock (0-100%): less than 8 hrs
Battery layout: Under seat & floor
Battery life: After 10 years, the battery is expected to have 70-80 percent of its original storage capacity
Toshi wrote:Other interesting bits from the article are that Nissan's Smyrna, TN plant, for which ground was figuratively broken yesterday, will have the capacity to build 200,000 battery packs per year. The nearby Leaf assembly plant only can build 150,000 Leafs per year at full capacity. This implies that Nissan will be selling excess battery packs to other manufacturers or will be building some non-Leaf BEVs or hybrids. Excellent.
Since shelving the electric Altra almost a decade ago, it has kept its eye on the all-electric prize, working non-stop on EV batteries. The automaker has pulled together big teams of engineers at its Technical Center and at its Advanced Technology Center in Atsugi, Japan, as well as at its Research Center in Oppama and its Operations Center in Zama. Their task: to build a higher-energy, lower-cost, EV battery.
The Leaf's engineering team says the resulting battery will take the car 100 miles between charges, without clogging up valuable space in the back seat or trunk. The key, they say, has been a dedicated 17-year effort that has resulted in a two-fold boost in the battery's energy density. By packing more energy into less volume, the battery provides Nissan engineers with choices - longer range or smaller batteries, or an idealized combination of the two. That's why they've been able to store the battery under the Leaf's floor while still reaching 100 miles of range.
"The breakthrough happened in 2002 or 2003," says Mark Perry, director of product planning for Nissan USA. "We changed the chemistry, went to laminate cells, and at the end of the day, we had twice the energy density. That allowed us to optimize the vehicle platform. Suddenly, we had a mass market vehicle concept."
dnmun wrote:they really should be giving the chargers away free,
Nissan Motor Co. is developing a lithium ion battery for electric vehicles that can store electricity at double the current capacity. Nissan aims to equip electric cars with the battery by 2015.
The new system is a lithium-ion battery using a lithium nickel manganese cobalt oxide cathode. Capacity is raised by improving the positive electrode, specifically, using nickel and cobalt, not only manganese. The new battery can store about twice as much electricity as batteries with positive electrodes made only from manganese. It is robust enough for practical use, able to withstand 1,000 or so charge cycles.
Nissan estimates that the battery will cost about the same as conventional lithium ion ones to produce, as it contains only a small amount of cobalt, a relatively expensive metal.
The new battery will be able to power an electric vehicle for 300 kilometers (186 miles) on a single charge, about twice the distance currently possible.
Nissan say they have been working on EV batteries for the past 18 years and are currently working on a lithium nickel manganese cobalt oxide cathode based battery that they expect to be fitting to Leaf EVs by 2015. With double the energy density of current cells, they will give the Leaf 200 miles range on a single charge.
Nissan expect this range combined with the money savings on EV running costs will 'tip' the market the same way the European market for Diesel cars 'tipped' 15 years ago.
Okay, despite the argument that there may not be a need for public chargers, we can't help but be giddy to announce that the U.S. finally has its first quick-charge station. The installation is now complete at the parking garage of the World Trade Center building in downtown Portland, OR, and the charger is capable of boosting most electric vehicle batteries from zero to 80 percent charge in just 20 to 30 minutes.
The grand opening event was led by Oregon Governor Ted Kulongoski, who is seen in the video after the jump cautiously attaching the charging cable to the Nissan Leaf. As Engadget reports, use of the quick-charge station is free of charge, but entry into the public parking garage will set you back three dollars. (Here's why.)
Portland General Electric opens North America's first public-use quick-charge station for electric vehicles in collaboration with NEC Electric vehicles can charge up in 20 to 30 minutes
PORTLAND, Ore. - Portland General Electric (NYSE: POR), Oregon's largest utility, and NEC Corporation (NEC; TSE: 6701), a leading network, communications and information technology company, announced today they have opened North America's first public-use, quick-charge station for electric vehicles.
The station was awarded public-use certification by the City of Portland following the successful installation and testing of the station manufactured by Takasago Ltd., a subsidiary of NEC, at the PGE headquarters in the Two World Trade Center parking garage, 121 SW Salmon St, Portland, Ore. The Takasago Rapid Charging Station is specialized for recharging electric vehicles with lithium-ion batteries and requires only 20 to 30 minutes to recharge a battery to 80 percent of full strength.
PGE and NEC officially opened the quick-charge station today with Governor Ted Kulongoski, who charged up an all-electric Nissan LEAF, during a two-day LEAF test drive event at PGE. Portland and the state of Oregon have been designated as top-tier launch markets for the Nissan LEAF when it goes on sale in the United States in December.
"Quick-charging stations are an exciting advancement in our effort to bring electric vehicles to Oregon," said Gov. Kulongoski. "By making charging convenient and available for public use, we are telling car manufacturers that Oregon is ready for the next generation of electric vehicles - and we want our state to be a leader in introducing these cars to the rest of the country."
"Partnering with NEC to bring the nation's first publicly available, quick-charge station to Oregon further solidifies PGE's commitment to developing the infrastructure needed to support electric vehicles now coming to the U.S. market," said Jim Piro, president and CEO, PGE.
"With the addition of the Takasago Rapid Charging Station to the growing network of EV charging stations in Oregon, we are able to further our research on how this new technology will interact with our electrical system and support our EV-driving customers," Piro added.
"This project reflects NEC's ongoing commitment to the development of new infrastructure that utilizes renewable resources. As a supplier of electric vehicle batteries, our introduction of the rapid electric vehicle charging station is a natural stage in the evolution of NEC's environmentally friendly solutions," said Hideki Niwaya, general manager, Public Utility Solutions Division, NEC. "Looking forward, NEC aims to continue developing mission critical solutions, including information and communications technologies (ICT) services and smart grids that represent the latest in technological innovation."
The Takasago Rapid Charging Station complies with the "CHAdeMO," a global EV charging standard developed in Japan. The station provides power output of 50kw (50-500V, 0-125A) and supports power input of AC200V+-30V.
PGE's alliance partner, Portland State University, and the Oregon Transportation Research and Education Consortium will document the acquisition, installation, certification, and testing procedures for this quick charger and release its findings in September
Report: Nissan to allocate 2,000 Leafs to UK in 2011, half headed to fleets
Aug 14th 2010 at 5:52PM
Last weekend, Nissan revealed some info regarding the Leaf's availability and its allocation in the UK and managed to do so with little fanfare and virtually no media coverage. It's almost as if Nissan intended to slip this announcement by without us getting wind of some pertinent info that could make electric vehicle-loving residents of the UK a bit angered. What's the news? Half of the Leafs headed to the UK in 2011 will be reserved for fleet use. The company also suggested that its allocation of 1,000 Leafs have already been claimed by fleet customers. A Nissan spokesperson said:We probably could have sold all of next year's allocation to fleet customers, but we wanted to make sure retail customers who wanted to buy the Leaf were able to, so we decided to split equally between fleet and retail.
Combining the statements above gives us the impression that Nissan intends to ship just 2,000 Leafs to the UK in 2011, with half headed to the retail market. Now, that will likely upset those early adopters who may find it hard to get their hands on a Leaf for a long while, but Nissan could have allocated all of the 2011 model run to fleets, thus making it impossible to get one in the UK until 2012. Thankfully, Nissan did not choose to follow that route.
veloman wrote:We really need to a replacement for diesel trucks. I have no idea how that's going to happen unless they can cut battery cost by 80%, and increase capacity by 300-400%.
Coen wrote:Awesome ad!
Thats what i call marketing!
Makes you wonder how much the way we are moving is going to change in a couple decades..
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