Joel Callen

News

Thu, 9 Apr, 2015

A new phone battery that can charge in 1 minute?

A new phone battery that can charge in 1 minute?

The days of waiting for your phone to be fully charged before you leave the house may soon be a thing of the past. A team of scientists at Stanford University in California have developed a cheap, long-lasting and flexible battery made of aluminium, and it can be charged in as little as one minute.

Researchers have been attempting to create an aluminium-ion battery to replace the lithium-ion batteries used in millions of mobile phones and laptops around the world, with the team at Stanford finally succeeding where others have failed. The breakthrough came, as many scientific discoveries do, when it was discovered, completely by accident, that graphite made a good partner to aluminium.

For the more curious mind – the aluminium was used to make the negatively charged anode, while the graphite provided material for the positively charged cathode. This prototype could be recharged in one minute.

Adding to the long list of improvements, the aluminium battery poses no fire hazard, unlike lithium-ion batteries, which occasionally burst into flames. The aluminium battery was able to last over 7,500 cycles without any loss of capacity, compared to a lithium-ion model, which tend to last about 1,000 cycles.

Looking to the future, it’s predicted that larger aluminium batteries could be used to store renewable energy on the electrical grid. 

Image credit: Youtube

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