NDB announced the development of a nanodiamond battery, the principle of operation of which resembles a nuclear generator.
A key component of the new battery is spent graphite from parts of a nuclear reactor, which have absorbed radiation from the fuel rods and become radioactive themselves. The team found a way to not only use it as a storage device, but also to make it safe..
A battery of radioactive nanodiamonds with a service life of over 90 years was invented
NDB purifies graphite with a high content of the radioisotope carbon-14 and makes tiny diamonds out of it, which, due to their structure, act as a semiconductor and a heat sink, collecting charge and transporting it outside. Because this material undergoes beta decay, the team additionally covers it with a diamond layer of the cheap, non-radioactive isotope carbon-12. The protective layer not only blocks dangerous radiation, but increases the strength of nanodiamonds.
To create battery cells, several layers of such a nanoscale material are folded and combined with a microcircuit and a small supercapacitor to accumulate, store and transfer charge..
According to the developers, such a device is much cheaper than the existing lithium-ion counterparts, while possessing high power, energy consumption, and its service life exceeds 90 years. When a battery breaks down, it can be recycled, and at the end of its life, only harmless by-products of decay remain.
The existing prototype of the NDB nanodiamond energy storage device is built into an integrated circuit and is capable of powering a small sensor, but in the next five years the company plans to scale the device to a car battery..
Earlier, we also reported that scientists have learned how to collect precious stones from microparticles using an electrostatic charge..
text: Ilya Bauer, photo and video: NDB