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Roy07
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Li-Air Membrane
Roy07   11/19/2013 3:47:10 PM
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I believe IBM has developed a membrane that allows air in but keeps moisture out.

http://www.ibm.com/smarterplanet/us/en/smart_grid/article/battery500.html

krisi
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Re: An impressive Li-air development
krisi   11/18/2013 2:47:17 PM
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Agree Terry, conceptually cool idea...but probably years from being used in practice if ever

Terry.Bollinger
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An impressive Li-air development
Terry.Bollinger   11/18/2013 12:15:43 PM
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The power densities possible with Li-air are impressive, to say the least, but the issue of dealing effectively with variable air humidity has been a continuing issue for them. In the past I've seen musings about how MEMS-based valves might help, but this idea of using viruses to provide nano-scale structuring of the active components is an intriguing new twist. I hope it works out as well as the MIT press release indicates.

(And alas, I can't resist: I even hope the idea goes viral...)



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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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