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Nanowire battery electrode powers through hundreds of thousands of charge cycles

by • April 20, 2016 • No Comments

With high conductivity and a sizeable-bodied surface area, nanowires have become really the candidate for an high end battery material. But at thousands of times thinner than a human hair, their delicate nature frequently causes them to fracture throughout the battery cycle. By designing a nanowire-based electrode with a special protective coating, researchers now claim to have overcome this limitation, which may lead to batteries able-bodied to endure hundreds of thousands of recharge cycles.

Recently, scientists have created a few promising strides when it comes to enhancing the properties of nanowires for the purpose of assembling advantageous batteries. In 2012, Stanford researchers tweaked the recipe a little to donate nanowires a greater surface area, as did researchers at MIT in 2013. In addition in 2013, scientists had a few good results via silicon nanowires to create a lithium-ion battery which held three times the energy of a conventional model, idea it may only endure around 200 recharge cycles.

With their new nanowire-based electrode, researchers at University of California, Irvine aren’t yet claiming increased battery ability, but a material with a much greater lifespan. Early testing of the component has shown which it can endure hundreds of thousands of cycles, compared to current models which they say usually die after around 7,000 cycles at many.

The researchers began with a gold nanowire, and and so coated it in a manganese dioxide shell. It was and so encased in an electrolyte created of a gel much like to Plexiglass. They put the electrode to the test by cycling it up to 200,000 times over a period of three months, detecting no loss of ability, power, or fracturing in any of the nanowires.

The researchers believe which the gel plasticizes the metal oxide inside the battery, affording it only the right amount of donate to prevent it cracking throughout the charging cycles.

“The coated electrode holds its shape much advantageous, building it a additional reliable-bodied option,” says UCI doctoral candidate, Mya Le Thai. “This research proves which a nanowire-based battery electrode can have a long lifetime and which we can manufacture these kinds of batteries a reality.”

The research was published in the journal Energy Letters.

Source: University of California, Irvine


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