Go Back   EcoModder Forum > EcoModding > Hybrids
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-26-2012, 04:06 AM   #1 (permalink)
Master EcoModder
 
mechman600's Avatar
 
Join Date: Jul 2008
Location: Langley, BC
Posts: 1,225

Colorado - '04 Chevrolet Colorado
90 day: 22.98 mpg (US)
Thanks: 190
Thanked 271 Times in 165 Posts
New life for the old lead acid battery?

Could Hybrids Use Lead-Acid Batteries? Startup Says Yes

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-26-2012, 05:55 AM   #2 (permalink)
Master EcoModder
 
Join Date: Jan 2012
Location: United States
Posts: 1,285

spyder2 - '00 Toyota MR2 Spyder
Thanks: 78
Thanked 221 Times in 163 Posts
Would be glad to pick one of these up when the battery in my car goes to battery heaven.
  Reply With Quote
Old 12-26-2012, 09:43 AM   #3 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,031

CM400E - '81 Honda CM400E
90 day: 58.68 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
Thanks: 2,354
Thanked 2,422 Times in 1,465 Posts
Interesting article. However, I don't see this happening. Even if they have designed a lead acid battery that can handle higher C rates without horrible peukert effects, and they can get around the weight issue by eliminating cooling and bms systems (which I have doubts about, its still going to need both in a demanding application, lead acid have traditionally never really been stressed nearly as much as they are saying), they still have horrible cycle life compared to nimh and lithium... Lead batteries also suffer from sulfation problems anytime they aren't near fully charged. In a hybrid you don't want to run around with a full battery pack so you have room for regenerative braking. The article doesn't address either of these two issues.
__________________
Current project: Adding regenerative braking to the Mirage
  Reply With Quote
Old 12-26-2012, 10:40 AM   #4 (permalink)
home of the odd vehicles
 
rmay635703's Avatar
 
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,138

Silver - '10 Chevy Cobalt XFE
Thanks: 309
Thanked 591 Times in 435 Posts
I would recommend you take a look or try to get a Greensaver lead silicon battery like my fathers mini van has.

He has approaching 10k on this 48v battery pack and his summer range is still around 40 miles give or take (we have gone 46miles a couple times)

His pack has had many deep discharges (80%-90% ish) and it still functions despite extreme abuse although its winter performance has dropped each year which is odd.

These greensaver batteries do not sulphate as far as I can tell but they are difficult to charge and experience damage each time they are charged fully, (sealed battery shouldn't gas) very strange battery and it loves to go out of balance.

I have a feeling if you put the technology that we use with lithium into lead plus add a CNT matrix you would have a much more durable battery that does not sulphate appreciably. The lead silicon greensavers do not appear to sulphate so we already have that covered, CNT would cover the peukert issues.

Sadly a lead battery that costs as much as a lithium battery, still weighs a bit more and is more difficult to charge would likely be a very hard sell but I bought one anyway, so maybe there would be a market for an advanced lead battery.

I always figured it was a bad thing that firefly never made it to market and the koreign micro bubble tech gave up on the CNT lead side.

Cheers
Ryan

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com