HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 4/5  >  >>
shehan
User Rank
Gold
Re: Accelerated Testing
shehan   4/13/2013 2:29:10 AM
NO RATINGS
 @Greg -  I didn't know that the operating temperature affects the battery life. If so have the battery manufacturers looked at taking necessary steps to maintain the required temperature?

shehan
User Rank
Gold
Re: Can EV Batteries Last 20 Years?
shehan   4/13/2013 2:25:04 AM
NO RATINGS
@Greg –yes as you said I wonder if these batteries will last that long. Is this just to make the sale or does the battery actually stay alive for this number of years?

shehan
User Rank
Gold
Re: Batteries that Last
shehan   4/13/2013 2:22:50 AM
NO RATINGS
@Charles - I wonder why they decide the durability of the battery in miles, why not in years. Does cheap material again reduce the durability / life of the battery?

shehan
User Rank
Gold
Re: New chemistries
shehan   4/13/2013 2:20:29 AM
NO RATINGS
@Charles – It could be a miracle if it could be done, it would definitely reduce the price of a hybrid vehicle making it more affordable. Most of the users are afraid to by a hybrid due to the battery replacement cost.

shehan
User Rank
Gold
Re: New chemistries
shehan   4/13/2013 2:18:20 AM
NO RATINGS
@davetrowbridge – It sounds interesting, we a re all looking for ways to reduce the cost on these systems. As technology develops I'm sure there should be an affordable way to do the same thing in a different way.

shehan
User Rank
Gold
Re: Batteries that Last
shehan   4/13/2013 12:42:30 AM
NO RATINGS
@apresher – I don't think the battery manufacturers would provide a service agreement to protect against catastrophe. It's not that they can't do that but simply they don't want to take the burden. I am using a Toyota Prius Hybrid but didn't get such service agreement.  

shehan
User Rank
Gold
Re: The batteries need to last
shehan   4/13/2013 12:01:09 AM
NO RATINGS
@Charles – yes replacing a battery costs a lot, you feel better when you hear that a battery could be used for 15 – 20 years. I wonder if this is the same for all the brands in the market. I am sure the cheaper ones are low in quality and would not last this long.

shehan
User Rank
Gold
Re: The batteries need to last
shehan   4/12/2013 11:57:54 PM
NO RATINGS
@Rob – Yes its indeed good news that we could use a hybrid battery for 15 – 20 years. As you said we might use a car for 8-10 years maximum, and the battery costs a lot when it comes to a hybrid car. 

Greg M. Jung
User Rank
Platinum
Accelerated Testing
Greg M. Jung   4/12/2013 10:47:28 PM
NO RATINGS
There was speculation that accelerated life testing increases temperature which artificially shortens battery lifespan. Would it be possible to incorporate cooling during accelerated testing to determine life span data at more reasonable temperatures?  I'm thinking that life testing has already been performed at cooler temperatures (which would prove/disprove this hypothesis).

Greg Stirling
User Rank
Platinum
Can EV Batteries Last 20 Years?
Greg Stirling   4/12/2013 8:22:25 PM
NO RATINGS
I'd be suprised if Lithium ion batteries made today will last that long.  They have made giant leaps forward - particularly in terms of weight to power ratio when compared to lead-acid or nickel-cadmium.  Eight years sounds more realistic if they are maintained and kept cool... 

 

<<  <  Page 4/5  >  >>


Partner Zone
Latest Analysis
Last year you helped Design News and Allied Electronics crown its first-ever Gadget Freak of the Year, and we need your help again. Vote in round 2 of our second-annual contest.
The key to autonomous driving is not to forget about the driver, and to remember that passengers want a sense of control, as opposed to being utterly passive backseat drivers.
HP revealed more of its 3D printing plans in a recent webinar. Senior vice president of inkjet and graphics solution business Stephen Nigro spoke about how the technology works and expanded on HP's vision of open collaboration to commercialize its Multi Jet Fusion 3D printing technology for end-production, and open collaboration on new materials. He also said HP will create software to help users decide when to use Multi Jet Fusion versus conventional subtractive manufacturing.
Get a load of these strange product designs. What's in the water these design engineers are drinking?
The Dutch are known for their love of bicycling, and they’ve also long been early adopters of green-energy and smart-city technologies. So it seems fitting that a town in which painter Vincent van Gogh once lived has given him a very Dutch-like tribute -- a bike path lit by a special smart paint in the style of the artist's “Starry Night” painting.
More:Blogs|News
Design News Webinar Series
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
11/6/2014 11:00 a.m. California / 2:00 p.m. New York
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Dec 1 - 5, An Introduction to Embedded Software Architecture and Design
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Last Archived Class
Sponsored by Littelfuse
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service