backtop


Print 101 comment(s) - last by AE3Wolfman.. on Sep 19 at 1:31 PM


GM's Bob Lutz  (Source: Photobucket/willfusion)

Production Chevrolet Volt
GM gives a thumbs up to the Volt's battery pack

General Motors' Bob Lutz made headlines earlier today for his comments on crash testing for European-designed vehicles. Lutz argued that differing crash testing standards are preventing the GM from bringing over smaller, more fuel efficient vehicles from Europe that would help the company boost its Corporate Average Fuel Economy (CAFE).

When Lutz isn't championing GM's efforts to pump the U.S. market full of high quality, fuel efficient vehicles with traditional internal combustion engines (ICEs) and drivetrains, he is singing the praises of the upcoming Chevrolet Volt. In the latest saga of the Volt's development, Lutz proclaims that testing of the vehicle's lithium-ion battery pack is going smoothly.

"We haven't hit any obstacles so far for the batteries," remarked Lutz to Kicking Tires. "They are all performing flawlessly. It's almost scary we are not seeing any problems with the batteries."

Lutz went on to explain that the batteries have been subjected to numerous reliability and durability tests which encompass rigorous road testing and extreme temperature variances. That being said, the battery life of the lithium-ion battery is a concern for GM. As a result, the battery along with other powertrain components will be covered under a 10-year warranty.

"We're being conservative on battery life. For our cost calculations we're assuming each car will need a replacement during the warranty period," added Lutz.

Lithium-ion batteries -- when used to provide 100% propulsion for a vehicle -- have largely been untested on a large scale in the U.S. auto market. There have been niche players like Tesla Motors with its Roadster, which features a 6,381 cell lithium-ion battery pack, but it also carries a hefty $100,000+ price tag.

GM's Volt, on the other hand, is expected to carry a much more palatable price of around $40,000 to $45,000 before the requisite government rebates and tax credits.

The Chevrolet Volt was recently spied on the set of the “Transformers 2” set wearing what appeared to be production bodywork. Shortly before the exterior was spied, picture of the Volt’s interior was also leaked for the world to see.



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: 10-year... how many miles?
By randomly on 9/3/2008 2:48:29 PM , Rating: 2
it's a 16kwh pack, but they only charge it to 80% capacity and discharge to 30%, using only half the capacity. This increases the cycle life in two ways. One is that staying away from the maximum and minimum charge states of the battery reduces the capacity decline of the cells and it also effectively doubles the cycle life compared to a battery that is fully discharged and charged each cycle.

At 40 miles a charge it will take effectively 2500 cycles to achieve 100K miles. The A123 batteries are certainly capable of doing that.
http://www.a123systems.com/#/applications/phev/pch...

Realistically there will be more wear and tear on the batteries with all the micro cycles of regenerative breaking and generator charging. However it's looking pretty good to me.


"A lot of people pay zero for the cellphone ... That's what it's worth." -- Apple Chief Operating Officer Timothy Cook














botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki