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