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A photoelectric nuclear battery

A nuclear battery and optoelectronic technology, applied in the fields of nuclear energy applications, micro-energy, and nuclear physics, can solve the problems of low output power, low energy conversion efficiency, and high sunlight dependence of fluorescent nuclear batteries, and achieve flexible battery design and good chemistry. Stability, the effect of expanding the application field

Active Publication Date: 2016-05-04
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the limiting factors such as the particle flux of the radioactive source, the self-absorption effect of the material, the degree of matching coupling between components, and the optical transmission loss, the output power of the radiofluorescent nuclear battery with the conventional structure is low, and the energy conversion efficiency is not high.
At the same time, on the other hand, the solar cell as a photoelectric conversion unit is highly dependent on sunlight, and has no output in the dark, which is greatly limited by environmental factors.
These two types of power supply methods have certain limitations when they work independently, which greatly reduces their application potential

Method used

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  • A photoelectric nuclear battery
  • A photoelectric nuclear battery
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1. Select a quartz glass sheet with a light transmittance of 95% and a resistance to 1000°C as the substrate of the fluorescent layer, wash it repeatedly with deionized water and alcohol, and dry it for later use;

[0039] Step 2. Deposit a layer of ZnS:Cu fluorescent layer 5 with a thickness of 70 μm on the substrate by physical deposition technology, place the deposited sample at 250° C. for 30 minutes, and wait for it to cool naturally to room temperature. It can be taken out to complete the preparation of the radioluminescent layer, and the whole preparation environment is normal pressure;

[0040]Step 3: Prepare the peripheral structure of the nuclear battery. The substrate of the sealed casing 9 is DPC, that is, a direct copper-plated support in which copper is deposited on the Al2O3 support by direct coating technology. This kind of ceramic material has a high thermal conductivity, which can improve the heat dissipation efficiency of the battery, and the thi...

Embodiment 2

[0045] This example is the same as Example 1 except for the following points.

[0046] Step 1. Select a colorless and transparent epoxy resin with a viscosity of 4500-5500MPa·s at room temperature and a colorless and transparent curing agent with a viscosity of 350-500MPa·s, and pre-treat the phosphor powder, preheating at 50-60°C for a period of time time;

[0047] Step 2. Mix the epoxy resin and curing agent in a weight ratio of 2:1 by using adhesive compounding technology, and mix it with Y 2 o 2 S: Stir the Eu phosphor evenly, heat and solidify, remove the corners and trim it to a suitable size, and complete the preparation of the phosphor layer;

[0048] Step five, load the Y on top of the semiconductor layer 2 o 2 S: A fluorescent layer made of Eu phosphor powder and transparent glue, on which a layer of glass capsule containing a gaseous tritium source is continuously loaded to form the radiation-induced fluorescent nuclear battery part;

Embodiment 3

[0050] This example is the same as Example 1 except for the following points.

[0051] Step 5. Load the ZnS:Cu fluorescent layer and the gaseous tritium source wrapped by elastic transparent glass on the top of the photovoltaic module to form the radiofluorescent nuclear battery part, and add a supercapacitor and voltage-stabilizing output device to it to convert the low-power , Discontinuous and dispersed electric energy collection and storage;

[0052] Step 6. Coating the transparent window above the entire peripheral structure with a double layer of TiO with better chemical stability 2 / Al 2 o 3 Anti-reflection film dielectric system material, and then package the various units of the battery together to complete the preparation of a micro-photoelectric nuclear battery integrating photoluminescence and radiofluorescence. Wherein, the area of ​​the active region of the radioactive isotope and the light-absorbing surface area of ​​the semiconductor layer are slightly small...

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Abstract

The invention discloses a photoelectric nuclear battery comprising a sealed shell, a radiation source layer, a semiconductor photovoltaic assembly and a fluorescent layer. The semiconductor photovoltaic assembly comprises a front electrode layer, a semiconductor layer and a back electrode layer which are sequentially connected. The sealed shell is provided with a transparent window. The radiation source layer, the fluorescent layer and the semiconductor photovoltaic assembly are arranged inside the sealed shell and are fixed by the sealed shell. The fluorescent layer is disposed between the radiation source layer and the semiconductor photovoltaic assembly. A glass substrate is connected with the front electrode layer of the semiconductor photovoltaic assembly. The fluorescent layer is connected with the radiation source layer. A glass sealing structure is arranged outside the radiation source layer. The glass sealing structure is connected with the transparent window of the sealed shell. Through joint action of light-induced fluorescence of sunlight and radiation-induced fluorescence of a radiation source, the output power of the battery is increased, the energy density of the battery is greatly improved, the application field of the battery is expanded, and long-time efficient work of the battery is ensured.

Description

technical field [0001] The invention belongs to the field of nuclear physics, nuclear energy application and micro energy, and in particular relates to a photoelectric nuclear battery. Background technique [0002] At present, in many fields such as ultra-low power devices, automatic control systems, and aerospace electronic devices, especially some power supply nodes that are difficult to replace and maintain at this stage, they have long life, high efficiency and stability, small size, light weight, and strong environmental adaptability. Nuclear batteries with advantages such as wide operating temperature range and stable output power can well meet these special needs. [0003] Among the conventional nuclear batteries, the thermoelectric thermoelectric effect nuclear battery is relatively large and it is difficult to realize miniaturization; the radiovoltaic effect nuclear battery directly interacts with the semiconductor energy conversion components due to the particles r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/055G21H1/12
CPCY02E10/52
Inventor 汤晓斌许志恒刘云鹏洪亮陈达
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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