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Technology

Diamond batteries promise to power space probes for 100 years

Japan-produced prototype also holds potential to electrify underground mines

As the hardest substance in the world, diamond is widely used as industrial tools and can even be transformed into semiconductors.   © Nikkei montage

TOKYO -- Diamond batteries capable of generating electricity for 100 years are being considered for use in space probes and in equipment for underground mining.

These batteries use man-made diamonds that generate electricity when placed in a radioactive field. If radioactivity can be controlled and blocked by wrapping these batteries in aluminum or other metal sheets, they can then be put to use.

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