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USC Researchers Invent Longer-Lasting Lithium-Ion Battery

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apresher
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Battery technology
apresher   3/1/2013 11:11:44 AM
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Recharging in 10 minutes is a very valuable feature. With smartphones, talk time seems to be meaningless in terms of how the battery is doing.  The data connection is the big user of power at least for me.  Maybe I'm not talking as much as others versus texting, surfing. Amp-hours is probably more accurate but definitely a tech spec in comparing models.

Ann R. Thryft
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Re: Longer Lasting?
Ann R. Thryft   3/1/2013 12:42:30 PM
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The perspective of "talk time" is the user's, which is why the term was invented. Although it's therefore a "marketing" term, it gave a much clearer picture of what the challenge actually was, i.e., improve and extend the system function and therefore the user experience, something that can get lost when looking only at specs. As mentioned, that was back in the day: cell phones were used for talking only, and batteries didn't last very long, certainly not as long as users expected. These days we should also be saying "text time" as Al points out.

Charles Murray
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Re: Longer Lasting?
Charles Murray   3/4/2013 8:06:42 PM
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It's going to be hard to squeeze more energy out of lithium-ion, what with researchers already approaching 40% of the theoretical limit. But faster recharge time could be an important step forward.

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