The ~10 year old NiMH batteries in my RangerEV are probably about 80% as good as they were when new. That 80% value seems to be the point where they get talked about as "worn out". I don't think the Ranger battery management system is as good as Toyota's though. The batteries do need to be charged and discharged within some specifications. Also they need to be monitored for temp and adjusted accordingly.
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Toyota to show new BEV?
- Thread starter malcolm
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I don't own a Rav4 EV. I'm basing everything I've said off an owner I known who has had two Rav4 EVs (for five years, I believe). The impressions I got from him, from all the descriptions of how he cares for the batteries, is that they were relatively fragile if not taken care of properly.
I guess I'm wrong: NiMH isn't so delicate.
"Well, for some reason Toyota has stuck with NiMH in all their hybrids to date."
Hybrids don't need high energy density and don't need to be able to handle high/low SOC variations. That means they can make compromises in the cell design to accommodate what is best for a hybrid. The only thing a hybrid battery needs is high power density.
But for a full BEV, you can't compromise energy density for power density or the capability to handle high/low SOC variations.
And yes, lithium's calendar life is precarious dilemma. It's what Tesla keeps most quiet about.
I guess I'm wrong: NiMH isn't so delicate.
"Well, for some reason Toyota has stuck with NiMH in all their hybrids to date."
Hybrids don't need high energy density and don't need to be able to handle high/low SOC variations. That means they can make compromises in the cell design to accommodate what is best for a hybrid. The only thing a hybrid battery needs is high power density.
But for a full BEV, you can't compromise energy density for power density or the capability to handle high/low SOC variations.
And yes, lithium's calendar life is precarious dilemma. It's what Tesla keeps most quiet about.
graham
Active Member
As a followup to dpeilow's linked article:
Toyota Denies Plans to Build a Solar-Powered Electric Car | All Cars Electric
Toyota Denies Plans to Build a Solar-Powered Electric Car | All Cars Electric
Their spokeswoman denies that they will build a car which (it could be implied) would be covered in solar cells, but the original article talks about a BEV charged by solar cells at home as "solar powered", as was proposed some time ago by Martin.
graham
Active Member
Although the "solar roof to power the climate control" of the Aptera or Karma is a reasonable use as well. Not really "powered" per se, but... I dunno... "solar power enhanced" or something?
Awesome news.
Unfortunately, seeing that it is already labeled as an "urban commuter" it will probably be a disgrace to EVs.
Think about how awful those two words really are. Urban=city=traffic=slow=pollution. Commuter=bored+frustrated. Used together, it's a double whammy!
I have a feeling they're planning to make another Prius...
The really good news here is that maybe the rest of the market will finally get serious about EVs. Maybe Mitsubishi will finally put their EV to market, and quickly Also, these plans should get automakers around the world (especially in America) to hurry up any EV plans. And maybe Honda will stop badmouthing evs...
We should be expecting some changes at Toyota, so I'm thinking these EV plans will definitely happen, and probably be speeded up.
All in the family: Toyoda grandson to take top job - Autoblog
Unfortunately, seeing that it is already labeled as an "urban commuter" it will probably be a disgrace to EVs.
Think about how awful those two words really are. Urban=city=traffic=slow=pollution. Commuter=bored+frustrated. Used together, it's a double whammy!
I have a feeling they're planning to make another Prius...
The really good news here is that maybe the rest of the market will finally get serious about EVs. Maybe Mitsubishi will finally put their EV to market, and quickly Also, these plans should get automakers around the world (especially in America) to hurry up any EV plans. And maybe Honda will stop badmouthing evs...
We should be expecting some changes at Toyota, so I'm thinking these EV plans will definitely happen, and probably be speeded up.
All in the family: Toyoda grandson to take top job - Autoblog
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He has been living in the Bay Area for a while.
(I saw some amazing Toyota displays at the Hillsborough Concours a while back)
Pics and stats of the FT-EV:
Toyota FT-EV concept unveiled on eve of Detroit auto show | Automotive & Motoring News | Car Magazine Online
Toyota FT-EV concept unveiled on eve of Detroit auto show | Automotive & Motoring News | Car Magazine Online
graham
Active Member
So they have mentioned "daily journeys of less than 50 miles" so we know it has limited range. Have they mentioned if it is a highway capable car?
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