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Scientists Cook Up Quick-Charging Aluminum Battery

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Apr 7, 2015, 8:27 AM   by Eric M. Zeman   @phonescooper

Aluminum-ion batteries may replace lithium-ion batteries in mobile devices thanks to a breakthrough made by U.S. researchers. Scientists have long sought to use aluminum in batteries because it is relatively inexpensive and light weight. They discovered that using aluminum as the negative anode and graphite as the positive cathode works very well. The aluminum-ion prototype battery can be fully charged in as little as one minute and can last through 7,500 charge cycles — more than seven times that of today's lithium-ion batteries. Furthermore, aluminum is much more stable and therefore safer than lithium-ion. "Lithium-ion batteries can be a fire hazard," said Hongjie Dai at Stanford University in California. "Our new battery won't catch fire, even if you drill through it." The aluminum-ion battery is durable and can be bent or folded. The researchers did not say if the aluminum-ion battery matches lithium-ion in terms of charge capacity relative to size. There's no word on if or when aluminum-ion batteries might reach consumer devices.

more info at Reuters »

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crossedsignals

Apr 7, 2015, 11:12 AM

Another article source: more info and video

http://www.bbc.com/news/science-environment-32204707 »

"Our battery produces about half the voltage of a typical lithium battery," Prof Dai said. "But improving the cathode material could eventually increase the voltage and energy density."

https://www.youtube.com/watch?v=ZKIcYk7E9lU&feature= ... »
Don't get too excited about this battery. It won't be around for probably at least 6 or 7 years at the soonest. Battery manufacturers will milk the Li-ion trend for several years before moving to the next generation. I remember hearing about potass...
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Slammer

Apr 7, 2015, 12:46 PM

Promising.

Out of the all the tech ideas for improving battery stabilization and longevity, this is the most promising and realistic so far.

However, just like the oil industry, sales are driven by repeated necessary evils. If the technology is significantly improved upon where no one needs to replace it as regularly as now, sales will diminish to the point of no revenue.

I honestly feel this is another development to that answers if it can be done. But, the question is, will it be done for mass adoption? Skeptical.

John B.
 
 
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