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Solar Impulse flies high without cobalt

Clean energy promoter and technology group, Solar Impulse, took off from Hawaii yesterday at dawn en route to California, USA, on the latest leg of its five day-five night round-the-world journey in a zero-fuel aircraft.

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The Solar Impulse lithium-sulphur battery technology allows solar energy to be stored to allow flight at night

The Solar Impulse lithium-sulphur battery technology allows solar energy to be stored to allow flight at night

The aircraft sucks energy from the sun and stores it in lithium-sulphur batteries to fly on solar power without the sun, throughout the night. The technology on board is “more than avionics, more than...

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