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stevedaemon
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stevedaemon   7/2/2013 3:33:49 AM
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I don't know much about the technology behind these batteries so I'm wondering how they still missed the fact they were building a battery that could fail when surely the best minds in the lithium-ion battery business did all the testing they could possibly come up with? I hope the battery issue have already been addressed. I truly hope the battery problems have been fixed. One can only imagine what would happen if something even remotely similar would happen again.

mike_m
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re: Lithium-Ion batteries overheated in Mitsubishi vehicles
mike_m   4/1/2013 11:22:14 PM
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Maybe we can send all of our Lithium planes and cars and dell PC's to North Korea, this way we can kill 2 birds with 1 stone.

DrQuine
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re: Lithium-Ion batteries overheated in Mitsubishi vehicles
DrQuine   3/29/2013 1:25:05 AM
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Two days ago, I read an article (Discovery News) about an emerging affordable 1,000 mile aluminum-air batteries for cars. They would be a game changer if they really could be deployed. Will Lithium-Ion batteries prove too hard to control - or are we just not yet at the point of having all the necessary process controls on their production?

Bert22306
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re: Lithium-Ion batteries overheated in Mitsubishi vehicles
Bert22306   3/28/2013 7:52:15 PM
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Same Yuasa brand, same issue with a single cell causing the problem, as was the case in the two Boeing 787 incidents, but a different flavor of Li-Ion chemistry. It will be interesting to see if the focus (finally) goes inside the cells themselves, instead of addressing peripheral, unlikely, easier to protect against, and easier-to-check-and-rule-out causes. As appealing as Li-Ion batteries are, this thermal runaway seems to have been such a common problem that one would think the root causes by now would have been discovered and remedied?



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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