^(63)Ni辐射伏特同位素电池原型的研制

Development of ^(63)Ni-Voltaic Nuclear Micro-battery Prototype

利用理论研究获得的换能单元参数制备了单晶硅基换能单元,确定了63 Ni的加载工艺和原型电池的封装材料配方与技术,通过加速热老化和温度交变考核了原型电池的性能。结果表明:所制备的63 Ni辐射伏特效应微型同位素原型电池的短路电流Isc、开路电压Voc、最大输出功率Pmax和衰变能-电能转换效率η分别为5.97nA、88.0mV、0.255nW和0.561%;原理样机稳定输出超过220d。

Crystal silicon based energy-conversion unit was prepared using the parameters from theoretical simulation.A battery prototype was assembled through ascertaining the process of 63Ni deposition,the formula of sealing materials and the sealing technique.The electric output properties were assessed with accelerating ageing and changing the temperatures.The results show that the open circuit voltage and short circuit current of the manufactured nuclear micro-battery prototype are 88.0 mV and 5.97 nA,and the maximum power output and the energy conversion efficiency are 0.255 nW and 0.561%,respectively.It preserves steadily over 220 days.