Influence of Solid Beta Sources Selection on Direct Charge Nuclear Battery

ZHANG Jiachen; HAN Yuncheng; WANG Xiaoyu; LI Ziwei; LI Taosheng; WANG Wei; LIU Weiping

doi:10.11804/NuclPhysRev.36.02.184

Direct charge radioisotope battery having the advantages of long service lifetime, simple structure, high open circuit voltage and easily miniaturized, is a promising source for the great power of Micro-ElectroMechanical System. Although the beta sources are the main choice for direct charge nuclear battery in the present studies,but no systematic analysis and comparison on beta sources is presented. In this work, the properties of six beta sources (including ³H(Ti³H₂), ¹⁴C, ³⁵S, ⁴⁵Ca, ⁶³Ni and ¹⁴⁷Pm) were studied by software simulation and theoretical calculation. This study includes the differences of energy conversion efficiency and the theoretical output power for direct charge nuclear battery. The calculated results showed that the energy conversion efficiency was positively correlated with the average energy of emitted radioactive particles, and the theoretical output power was negatively correlated with half-life of beta source. ¹⁴⁷Pm was the preferred choice considering long life, the energy conversion efficiency and the theoretical output power.

Influence of Solid Beta Sources Selection on Direct Charge Nuclear Battery

1. Key Laboratory of Neutronics and Radiation Safety, Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei 230031, China;

2. University of Science and Technology of China, Hefei 230027, China

Funds: National Natural Science Foundation of China (11605232); Anhui Provincial Natural Science Foundation of China (1808085MA10); Informatization Project of Chinese Academy of Sciences (XXH13506-104)

Received Date: 2018-09-26

Rev Recd Date: 2019-03-29

Publish Date: 2019-06-20

Key words:

Abstract: Direct charge radioisotope battery having the advantages of long service lifetime, simple structure, high open circuit voltage and easily miniaturized, is a promising source for the great power of Micro-ElectroMechanical System. Although the beta sources are the main choice for direct charge nuclear battery in the present studies,but no systematic analysis and comparison on beta sources is presented. In this work, the properties of six beta sources (including ³H(Ti³H₂), ¹⁴C, ³⁵S, ⁴⁵Ca, ⁶³Ni and ¹⁴⁷Pm) were studied by software simulation and theoretical calculation. This study includes the differences of energy conversion efficiency and the theoretical output power for direct charge nuclear battery. The calculated results showed that the energy conversion efficiency was positively correlated with the average energy of emitted radioactive particles, and the theoretical output power was negatively correlated with half-life of beta source. ¹⁴⁷Pm was the preferred choice considering long life, the energy conversion efficiency and the theoretical output power.

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Reference (24)

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Influence of Solid Beta Sources Selection on Direct Charge Nuclear Battery

doi: 10.11804/NuclPhysRev.36.02.184

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