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Slideshow: Lithium-Ion's Rise to Prominence

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Charles Murray
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Re: Image problems?
Charles Murray   4/25/2013 9:04:12 PM
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I know there was awareness of the past track record of battery development, Rob. But there's always a temptation to believe that the technology's time has finally come, especially with enough funding.

Rob Spiegel
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Re: Image problems?
Rob Spiegel   4/26/2013 10:04:40 AM
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It will be interesting to see how the lithium-ion battery fares going forward. Seems the automakers have invested heavily in this battery, even with the questions still flloating around. Your point earlier concerning the value of a used EVs that needs a new battery still haunts the ultimate validity and afflordability of EVs.

Charles Murray
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Re: Image problems?
Charles Murray   5/1/2013 10:09:53 PM
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I believe that lithium-ion will be with us for a long time to come, Rob. There are so many producers of the technology out there now, and the energy capacity of this chemistry is so great, that engineers will find a use for them, unless some catastrophic accident occurs.

Totally_Lost
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Re: Image problems?
Totally_Lost   5/2/2013 1:08:12 PM
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Rob ... the problem with security is it's very hard to retrofit, if not carefully and fully designed in from the beginning.

There are a lot of potential attack vectors for cars of the future, expecially if "entertainment systems" continue to be tightly integrated with control systems. Consider a car that offers internet access with an onboard touch screen web browser for passengers, with outdated browser plug-ins like Java, Adobe Reader or Flash Player -- all of which are potential attack vectors with exploits that don't require click authorization.

Then consider that these plug-in's are not always secure .... and haven't been for a while now. google:

Whitehole exploit toolkit


So far there hasn't been a mandate for highly secure automotive control systems ... and we have people selling chip-kits that replace the factory firmware for many auto's and trucks.


Over heat a large Li-Ion battery pack, and thermal runaway is unavoidable if the thermal management system can be compromised by software ... either disabling termal lockouts for charging, or disabling thermal lockouts for discharging, or both.

I simply raise this, because it's very likely with current trends, that Li-Ion batteries will be a target in the future .... posting this certainly let the cat out of the bag. Someone needs to be responsible up front, and set clear design thresholds for safety ... not just for preventing thermal runaway of Li-Ion batteries, but coordinated attacks which might disable or seize control of a car remotely as part of a coordinated infrastructure attack.

Consider the "Fire Sale" from Die Hard :)

That was theater ... reality isn't that far behind.

Rob Spiegel
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Re: Image problems?
Rob Spiegel   5/3/2013 1:36:17 PM
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Well agrued, Totally_Lost. I particularly see your point on the systems that would be  retrofitted. Add to that plug-in devices from teenagers who are well known for their lack on interest in security. So, good points.

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