Bio batteries for mobile phones

Mobile phone chargers could soon be a thing of the past thanks to the latest invention – a mobile phone powered by Cola-Cola.

Daizi Zheng, a student at Central Saint Martins, came up with the concept whilst studying for her final year project.

The prototype is said to run for up to four times longer than a traditional lithium battery and has the potential to be fully biodegradable.

The battery works by using enzymes to catalyse sugar in the drink. This in turn releases electricity which powers the mobile phone. As the battery dies, just water and oxygen remain.

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