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hassle of having to charge your smartphone for hours a day could become
a thing of the past.
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British scientists have created a material that replaces the screen
glass for phones, tablets and smartwatches, but uses no power ¨C meaning
they could be charged weekly.
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The discovery is significant because more than 90 per cent of a device¡¯s
battery power illuminates the screen.
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Technology firms have focused on improving battery life. But the British
experts say tackling the main drain on a gadget¡¯s power may give better
results.
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Oxford University engineer Dr Peiman Hosseini, who invented the
material, told the Sunday Telegraph: ¡®You have to charge smartwatches
every night. But if you had smart glass, you could recharge it just once
a week.¡¯
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The innovation uses electrical pulses to create displays that require no
power and can be viewed even in direct sunlight. Dr Hosseini¡¯s company,
Bodle Technologies, hopes to have a prototype in a year.
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¡®This is the right moment to be an academic at Oxford,¡¯ Dr Hosseini
said.Battery life is seen as a major stumbling block for modern
computing and technology.
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While the power of technology and lifestyle gadgets has improved
exponentially in recent years, batteries have not kept pace.
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The success of smart watches, including Apple¡¯s version, is thought to
hinge on solving this problem - because few users are willing to charge
a watch every day.
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Gadget firms are also desperate to solve the problem.
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Apple, for example, is investigating using fuel cells to power its
phones and laptops, and this year was granted a patent for a system it
claimed could power its devices for weeks.
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In 2012 US energy secretary Steven Chu called for a big push to improve
batteries, challenging scientists to produce a battery with five times
the capacity within five years.
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Aside from mobile gadgets, improving battery technology is seen as being
key to the success of electric cars, which currently have a limited
mileage before they must stop to be recharged.
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