New tech extends li-on battery life

[Eldictator]

..seems like moors law is moving to batteries

http://www.crunchgear.com/2010/02/04...-battery-life/

[DRM]

Wow -- 500WH/L at 10k cycles is pretty impressive. Let's see if the hype turns into real deployment....

[vfx]

What are they not telling us?

[Iz]

With regard to batteries, I would think most current and future EV owners would list requirements in this order:

-Range
-Charge time
-Life

[Tdave]

With regard to batteries, I would think most current and future EV owners would list requirements in this order:

-Range
-Charge time
-Life

Not me. As a Roadster owner charge time is more than adequate. Range is mostly fine, more would be nice. Life of battery is my big looming expense. So I would list the importance of improvement over what we have now as:

-Life
-Range
-Charge time

[Iz]

Tdave, thanks for offering your real-life perspective. The 10k cycle would be very welcome by current Roadster owners.

[SByer]

It's wierd, once you own an EV amd get over range anxiety, it really rearranges what you'd want out of the second battery. I don't want to give up range, but from here longer life and lighter weight seem like the next best step.

[JRP3]

Let's not forget cost. If it's cheap enough, and light enough, you can buy more range and replace it more easily. So I guess cost per cycle would be the proper metric.

[Iggy]

"It's wierd, once you own an EV amd get over range anxiety"

I'll have to take your word on that. But I would say if I can't make a trip from the middle of Illinois to Chicago in an EV then I'm going to have a problem. Currently the Tesla Roadster would leave me stranded in Joliet. Granted it would be smooth sailing to St Louis. Yes for the average week an EV would be no problem for my household. But we take frequent weekend trips where an EV unfortunately at the moment would be a fail whale. In some cases it might glide in with an almost empty battery pack.

Iz had the right thought. But for us poor people cost is a big factor. Truly wish I could lead by example. Just not enough cash. At this point I wish I could find a company wanting a real person to test a mule. But no go.

[JRP3]

I expect that with a normal income anyone needing more than about 100 miles of range can only have an EV as a second car or be stuck with hybrids for quite a while. Or be willing to rent an ICE for longer trips.