Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Samarium isotope minisize cell and manufacturing method thereof

A micro-battery and isotope technology, which is applied in the fields of obtaining electric energy from radioactive sources, nuclear engineering, and the application of radioactive source radiation. It can solve the problems of low output power and low short-circuit current, achieve good electrical output performance, and the preparation method is safe and reliable. Effect

Inactive Publication Date: 2012-06-13
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the existing technical 3 H or 63 Ni isotope micro-battery output power is too small, short-circuit current is too low, the invention provides a samarium isotope micro-battery and its preparation method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Samarium isotope minisize cell and manufacturing method thereof
  • Samarium isotope minisize cell and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The content of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] figure 1 It is a structural schematic diagram of a samarium isotope micro-battery of the present invention. figure 1 Among them, the samarium isotope micro-battery of the present invention contains a transduction unit and accessory parts, and the transduction unit includes samarium-151 radiation source sheet 7, Si 3 N 4 Layer 8, silicon-based PN junction 9; accessory components include outer package layer 1, ring electrode 2, positive lead 3, positive electrode 4, gold layer 5, base 6, negative electrode 10, negative lead 11, ceramic sheet 12, inner package Layer 13; its connection relationship is, Si 3 N 4 Layer 8 is located on the upper surface of the silicon-based PN junction 9; the ring electrode 2 is on the Si 3 N 4 Epitaxy of layer 8; samarium-151 radiation source sheet 7 is fixed on Si by inner encapsulation layer 13 3 N 4 The upp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a samarium isotope minisize cell and a manufacturing method thereof. The cell is formed by a transduction unit and an appurtenance. The transduction unit comprises: samarium-151 radioactive source sheet, a Si3N4 layer and a silicon-based PN junction. The appurtenance comprises: an outer encapsulation layer, a ring electrode, a positive lead, a positive electrode, a gold layer, a pedestal, a negative electrode, a negative lead, a ceramic chip and an inner encapsulation layer. The Si3N4 layer is located on an upper surface of the silicon-based PN junction. The ring electrode is on an epitaxy of the Si3N4 layer. The samarium-151 radioactive source sheet is fixed on the upper surface of the Si3N4 layer by using the inner encapsulation layer. A lower surface of the silicon-based PN junction is the gold layer. One end of the negative lead is connected with the gold layer and the other end is connected with the negative electrode. One end of the positive lead is connected with the ring electrode and the other end is connected with the positive electrode. The ceramic chip is located below the gold layer. The ceramic chip is located on the very center of the pedestal. The outer encapsulation layer covers the outside of the pedestal. The samarium isotope minisize cell of the invention has a small size and can work without energy provided from the outside. The cell can continuously output a 100nA-muA current and 0.1muA-1muA for more than 45 years. The manufacturing method of the invention is safe and reliable.

Description

technical field [0001] The invention belongs to the field of micro-isotope batteries, in particular to a samarium isotope micro-battery and a preparation method thereof. Background technique [0002] During the decay process, radioactive isotopes will spontaneously emit particles (such as α, β, γ particles, etc.), and these particles contain a certain amount of energy, which is called decay energy. An isotope battery is an energy supply device that converts this decay energy directly or indirectly into electrical energy. [0003] There are more than 10 mechanisms by which isotope batteries convert decay energy into electrical energy. However, in the production of micro batteries, isotope batteries of many mechanisms cannot take into account the three requirements of small size, long life and maintenance-free. Since the late 1990s, under the traction of MEMS / NEMS and other micro / nano system airborne power requirements, and with the rapid development of isotope application t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G21H1/06
Inventor 胡睿杨玉青王关全罗顺忠钟正坤刘业兵张华明魏洪源
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com