Solid-oxide fuel cell based energy storage cell and preparation method thereof

A solid oxide and fuel cell technology, applied to solid electrolyte fuel cells, fuel cells, battery electrodes, etc., can solve the problems of large system, low energy efficiency, easy sintering into blocks, etc., and achieve long theoretical life and shape change small effect

Active Publication Date: 2012-09-26
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The storage of active substances outside leads to a large system, especially the high-temperature operation of SOFC brings strict insulation requirements, resulting in a decrease in the overall energy efficiency of the system
Moreover, we found that when iron metal powder is used alone, it is easy to sinter into agglomerates at high temperature, so that the chemical energy present in the fuel powder cannot be fully released.

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
  • Solid-oxide fuel cell based energy storage cell and preparation method thereof
  • Solid-oxide fuel cell based energy storage cell and preparation method thereof
  • Solid-oxide fuel cell based energy storage cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The structure prepared by dipping molding method is: NiO-YSZ / SSZ / LSM-SSZ anode-supported tubular solid oxide fuel cell. For the specific preparation process, refer to Example 1 in the specification of Chinese patent CN200810200167.7. The prepared anode-supported tubular solid oxide fuel cell has a wall thickness of about 0.5-0.8 mm, an outer diameter of about 1.0 cm, a length of about 20 cm, and a cathode area of ​​about 15 cm 2 , the volume of the anode chamber is 12.7cm 3 .

[0052] Such as figure 1 Shown: the above-mentioned anode-supported tubular solid oxide fuel cell 2 is reduced to an open circuit voltage greater than 1.0V in a hydrogen atmosphere, and then lowered to room temperature under the protection of a hydrogen atmosphere, and 0.017mol iron powder, 0.02mol calcium oxide and 0.001g Calcium hydroxide is mixed and filled into the anode chamber 3 of the battery, the air in the anode chamber 3 is vented by introducing hydrogen gas, and then the battery is se...

Embodiment 2

[0056] The difference between this embodiment and Embodiment 1 is that the iron powder filled in the anode chamber is replaced by tin powder, and the rest of the content is the same as that described in Embodiment 1.

[0057] image 3 The electrical performance curve of the energy storage battery prepared for this example after two charge and discharge cycles, the charge and discharge current density is 30mA / cm 2 , The charge and discharge cycle is 30 minutes. Depend on image 3 It can be seen that the charging and discharging voltage of the battery is relatively stable. combine image 3 It is calculated that the utilization rate of tin is 24.7%, and the energy density generated by the battery is 75.8Wh / kg.

Embodiment 3

[0059] The difference between this embodiment and embodiment 1 is that the calcium oxide filled in the anode chamber is replaced by magnesium oxide, and the calcium hydroxide is replaced by magnesium hydroxide, and the rest of the content is the same as that described in embodiment 1.

[0060] Figure 4 The electrical performance curve of the energy storage battery prepared for this example after two charge and discharge cycles, the charge and discharge current density is 80mA / cm 2 , The charge and discharge cycle is 30 minutes. Depend on Figure 4 It can be seen that the charging and discharging voltage of the battery is relatively stable; after two charging and discharging, the battery performance does not appear to decay. combine Figure 4 It is calculated that the utilization rate of iron reaches 49.4%, and the energy density generated by the battery is 504.2Wh / kg.

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
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a solid-oxide fuel cell based energy storage cell and a preparation method thereof, wherein the energy storage cell is prepared by a method comprising the following steps of: warming and reducing a solid-oxide fuel cell under a hydrogen atmosphere to the open circuit voltage greater than 1.0V; then reducing to room temperature under the hydrogen atmosphere; filling the mixture of metal single substance, metal oxide and metal hydroxide into an anode room of the solid-oxide fuel cell; introducing hydrogen to evacuate air in the anode room; and then covering with a seal cover and vacuumizing, thus the solid-oxide fuel cell becomes an enclosed system. The energy storage battery provided by the invention can implement enclosed operation, and is safe and has no pollution; the energy density generated by the cell is high; the service life is long; the cost of raw materials is low; and the raw materials have wide sources, are easy to recycle, and have wide application prospect.

Description

technical field [0001] The invention relates to a novel energy storage battery and a preparation method thereof, in particular to an energy storage battery based on a solid oxide fuel cell and a preparation method thereof, and belongs to the technical field of solid fuel cells. Background technique [0002] Modern society has higher and higher requirements for power supply reliability and environmental compatibility, and smart grid technology has been paid more and more attention. Electric energy storage technology is an important part of smart grid technology. It refers to the conversion of electrical energy into other forms of energy through a certain device and efficient storage. The stored energy can be easily converted into electrical energy when needed. An important application of electric energy storage technology is to cut peaks and fill valleys, and store the surplus power at night for use during the day, thereby reducing the investment in redundant power equipment ...

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): H01M8/10H01M4/86H01M8/1246
CPCY02E60/521Y02E60/50
Inventor 王绍荣骆婷占忠亮邵乐叶晓峰史坚钱继勤
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap