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The battery that could charge a mobile phone in less than ONE SECOND

Smart phones are more sophisticated than ever, yet the batteries that power them have remained relatively archaic - until now.

Scientists at the University of Illinois have managed to develop the most powerful microbatteries ever created, making them almost 1000 times stronger than existing lithium batteries and paving the way for smartphones that could be charged in just one second.

'This is a whole new way to think about batteries,' said lead researcher William King.

powerful micro battery

'A battery can deliver far more power than anybody ever thought, he said. In recent decades, electronics have gotten small. The thinking parts of computers have gotten small. And the battery has lagged far behind. This is a microtechnology that could change all of that. Now the power source is as high-performance as the rest of it.'

Until recently, users have had to choose between power and energy.

For applications that need a lot of power, like broadcasting a radio signal over a long distance, capacitors can release energy very quickly but can only store a small amount.

For applications that need a lot of energy, like playing a radio for a long time, fuel cells and batteries can hold a lot of energy but they take a long term to recharge.

'There's [always been] a sacrifice,' said James Pikul, a graduate student and first author of the paper.

'If you want high energy you can't get high power; if you want high power it's very difficult to get high energy.

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