An integrated battery may include a substrate including a first material, a plurality of second material layers each including a second material, and a plurality of radiation sources configured to apply radiation to the substrate and the plurality of second material layers. The first material may have a polarity opposite a polarity of the second material. The plurality of second material layers may contact the substrate, and each of the plurality of radiation sources may have a tapered shape.

An integrated battery may include a substrate including a first material, a plurality of second material layers each including a second material, and a plurality of radiation sources configured to apply radiation to the substrate and the plurality of second material layers. The first material may have a polarity opposite a polarity of the second material. The plurality of second material layers may contact the substrate, and each of the plurality of radiation sources may have a tapered shape.

The present invention relates to a betavoltaic battery and a method of manufacturing the same. More specifically, the present invention relates to a betavoltaic battery characterized in that .sup.14C, a radioisotope, is formed in the form of quantum dots and .sup.14C is used as the cathode and the beta-ray source of the betavoltaic battery and a method of manufacturing the betavoltaic battery.

The present invention relates to a betavoltaic battery and a method of manufacturing the same. More specifically, the present invention relates to a betavoltaic battery characterized in that .sup.14C, a radioisotope, is formed in the form of quantum dots and .sup.14C is used as the cathode and the beta-ray source of the betavoltaic battery and a method of manufacturing the betavoltaic battery.