Charge Your Smartphone In A Minute

battery
Here’s a battery that could charge your battery in one minute. The new aluminum battery has been developed by Stanford scientists. It is much safer than existing lithium-ion
and alkaline batteries in wide use today and does not catch fire, researchers said.

Hongjie Dai, a professor of chemistry at Stanford University said, they have a developed a rechargeable aluminum battery that may replace existing storage devices, such as alkaline batteries, which are bad for the environment, and lithium-ion batteries, which occasionally burst into flames
Aluminum has long been an attractive material for batteries, mainly because of its low cost, low flammability and high-charge storage capacity.

An aluminum-ion battery consists of two electrodes: a negatively charged anode made of aluminum and a positively charged cathode.
Mr Dai, said, they accidentally discovered that a simple solution is to use graphite, which is basically carbon. In their study, they identified a few types of graphite material that give them very good performance.
How they designed?
The team placed the aluminum anode and graphite cathode, along with an ionic liquid electrolyte, inside a flexible polymer-coated pouch.

“The electrolyte is basically a salt that’s liquid at room temperature, so it’s very safe.

Aluminium batteries are safer than conventional lithium-ion batteries used in millions of laptops and cell phones today.

Smartphone owners are very well-aware that it can take hours to charge a lithium-ion battery. But the team reported unprecedented charging times of down to one minute with the aluminum prototype.

Aluminum batteries developed at other laboratories usually get finished after just 100 charge-discharge cycles. But the Stanford battery was able to withstand more than 7,500 cycles without any loss of capacity.

“This was the first time an ultra-fast aluminium-ion battery was constructed with stability over thousands of cycles.

The most feature is its flexibility. A user can bend it and fold it, so it has the potential for use in flexible electronic devices. Aluminum is also a cheaper metal than lithium.

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