Nuclear Battery

nuclear battery

[′nü·klē·ər ′bad·ə·rē]
A primary battery in which the energy of radioactive material is converted into electric energy by solar cells or other energy converters. Also known as atomic battery; radioisotope battery; radioisotopic generator.

Nuclear Battery


(also atomic battery), a source of current that converts the energy released in the course of radioactive decay to electrical energy (seeRADIOACTIVITY).

Nuclear batteries are used chiefly in portable radios, wristwatches, hearing aids, and measuring instruments. They can be subdivided into two types, depending on the method of converting nuclear energy to electrical energy: batteries with direct charging of the electrodes, in which the charged particles escaping from one electrode (the emitter) accumulate on the other electrode (the collector), forming a potential difference, and batteries in which the kinetic energy of the emitted charged particles is converted to electrical energy through an intermediate medium—gas, liquid or solid. In the latter case, the battery utilizes the effects of the contact difference of potentials of the electrodes in an ionized gas and the electrochemical generation of energy from radical and molecular products formed under the action of radioactive emission on the electrolyte; it also makes use of semiconductor p-n junctions. The source of charged particles in a nuclear battery (beta particles, alpha particles, fission fragments) is provided either by radioactive isotopes or by nonradioactive elements, such as silver, which are activated in a nuclear reactor by neutron irradiation.


References in periodicals archive ?
TEHRAN (FNA)- For the first time using a water-based solution, researchers have created a long-lasting and more efficient nuclear battery that could be used for many applications such as a reliable energy source in automobiles and also in complicated applications such as space flight.
A nuclear battery that converts heat into electricity
Kwon and his research team have been working on building a small nuclear battery, currently the size and thickness of a penny, intended to power various micro/nanoelectromechanical systems (M/NEMS).
If it asks for a robotic body, a nuclear battery pack, and access to a manufacturing facility I personally wouldn't hand them over.
However, no one has ever come up with a practical nuclear battery (SN: 8/24//02, p.
The company also recently announced the acquisition of a nuclear battery, with plans to develop, manufacture and market it to the satellite industry.
At the forefront of this research are the Quantum Fingerprint Chemical/Biological Sensor Technology and the Compact Nuclear Battery Technology.
The Nuclear Battery - Nuclid Battery: Rhombic has acquired the