Scientists from NUST MISIS have presented an innovative autonomous power source: a compact atomic battery that can last up to 20 years. Due to the original 3D structure of the beta-voltaic element, its dimensions have decreased by 3x.
The original device uses the microchannel 3D structure of a nickel beta-voltaic element. Its peculiarity is that the radioactive element is applied on both sides of the planar p-n junction, which simplifies the cell manufacturing technology, as well as the control of the reverse current that steals the battery power. The special microchannel structure provides an increase in the effective conversion area of the beta radiation by 14 times, which results in an overall increase of current.
“The output electr...
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