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Amazing Lab Accident May Have Created Lifetime Cell Phone Battery

By Nick Nunez 3 min read
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Credit: PC Advisor
Credit: PC Advisor

Usually stories involving lab accidents end with “hundreds dead” in the title or a once totally rational and brilliant scientist turning mad and deciding to use their new powers to crush Spider-Man (because why not?).

But UC Irvine researcher Mya Le Thai is changing all of that with perhaps the most exciting accidental lab discovery since champagne: a cell phone battery that could last a lifetime.

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Anyone who has had a smart phone in their lives knows the experience of feeling like their battery just doesn’t seem to hold the same charge that it once did. In fact, your phone’s battery always seems to start to sputter out right when your carrier is pushing you to make another expensive upgrade. This isn’t your imagination or a conspiracy theory. Lithium ion batteries tend to start to die out between 500 and 1,500 charge cycles—that is, the amount of times your battery is drained and then recharged.

Researchers thought they found a solution to this issue with nanowire-based batteries. These batteries are thousands of times thinner than a human hair, making it ideal for thin phones, and are highly conductive. The only problem is that they are incredibly fragile and they die between 5,000 and 7,000 charge cycles.

Credit: Steve Zylius/UCI
Credit: Steve Zylius/UCI

Thai started to play around with the nanowires when she made a discovery that shocked her fellow researchers. By coating the gold nanowires in a manganese dioxide sheath, doing away with liquid lithium, and surrounding the manganese with a dense electrolyte gel, she was able to both protect the fragile wires as well as dramatically increase the battery’s efficiency after many, many cycles.

“She discovered that just by using this gel, she could cycle it hundreds of thousands of times without losing any capacity,” said Reginald Penner, a lead author of a paper of the research, told IBTimes.

Since coating the wires with her gel, Mya Le Thai has charged and discharged the battery over 200,000 times without losing any battery capacity or breaking the wires.

“The coated electrode holds its shape much better, making it a more reliable option,” Thai said. “This research proves that a nanowire-based battery electrode can have a long lifetime and that we can make these kinds of batteries a reality.”

While smart phones are typically traded in well before their batteries become dangerous, traditional lithium batteries in longer-lasting electronics such as laptops are prone to corrosion after multiple charge and discharge cycles. Thai’s discovery creates a promising new alternative to these batteries which can be helpful to consumers, electronics, and the environment. Many are excited about other applications for this new discovery, such as cars and spacecraft, but we all know that you just want to keep scrolling through Instagram and Your Daily Dish while having enough juice to play Candy Crush. No worries, we’re not judging.

If you want to hear Mya Le Thai explain her discovery in her own word, or if you just want to check out her enviable NASA t-shirt, check out the video below:

https://www.youtube.com/watch?v=lzFzBpwl8aU

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