Tin cans used in battery experiment
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Scientists work to improve phone battery life

Mobile devices have transformed our lives, but unplugged from the mains they only last as long as the energy held within their batteries.

Scientists are constantly looking for new ways to generate and bottle energy, leading to exciting developments away from pure battery technology.

The first is wireless power - charging your gadgets without having to plug them in to the mains.

Graham Satchell reports.

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