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Solid porous supporting body flat-plate series micro solid oxide fuel battery

A solid oxide, porous support technology, used in solid electrolyte fuel cells, fuel cells, fuel cell components, etc., can solve the problems of difficult production, collapse of hollow flat tubes, etc., achieve good strength, improve specific energy, Effects that are easy to make

Inactive Publication Date: 2009-06-03
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the small size of the micro-SOFC, the hollow porous flat tube wall is very thin, making it difficult to manufacture. During the screen printing process, the pressure applied will easily cause the hollow flat tube to collapse, so the hollow porous support tube has become a limitation of this kind A major factor in the development of flat-panel micro-SOFCs

Method used

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  • Solid porous supporting body flat-plate series micro solid oxide fuel battery
  • Solid porous supporting body flat-plate series micro solid oxide fuel battery

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Embodiment

[0025] The flat-plate series-connected miniature SOFC supported by solid porous ceramics of the present invention has a porous support with a size of 20mm×15mm×3mm, and four SOFC cells connected in series are respectively made on two surfaces with a size of 20mm×15mm. The battery packs on each surface are then connected in series to form a battery pack with 8 batteries connected in series. The effective working area of ​​each single cell is 10mm×2mm=0.2cm2, the open circuit voltage of each single cell is 1V, and the working voltage is 0.7-0.8V. This miniature SOFC can provide a working voltage of about 6V. The typical power density of a SOFC single cell is 0.3W / cm2, and the power of this SOFC can reach 0.48W.

[0026] The invention combines the screen printing technology generally used in the electronics industry with the traditional ceramic manufacturing process, and the design mode of the flat-plate series-connected miniature SOFC supported by the solid porous ceramic elimin...

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Abstract

A micro-solid oxide fuel cell of flat series connected type with solid porous support body is prepared as forming fuel cell unit by porous positive electrode layer, compact electrolyte film and porous negative electrode; connecting porous positive electrode in one unit to porous negative electrode in another unit on two adjacent units to form cell set, using insulated solid porous support body with porosity being greater then 50% as said support body and setting position of compact electrolyte film to porous positive electrode and position of compact electrolyte film to porous negative electrode to be staggered for avoiding short-circuit between two said electrodes.

Description

technical field [0001] The invention relates to a screen printing process, a wax paste casting method to print a porous ceramic support body and a fuel cell technology, in particular to a solid porous support body plate serial connection type miniature solid oxide fuel cell group. Background technique [0002] With the development of technology, miniature electronic products have more functions, such as color screen of mobile phone, MMS, PDA and integrated digital camera used in conjunction with communication equipment. These functions require higher energy consumption, while traditional MH-Ni batteries and lithium-ion batteries have gradually been unable to meet the increasing high energy consumption demands of electronic products. Theoretically, the specific energy of the fuel cell is higher than that of the storage battery, and it does not need to be charged, so the micro fuel cell is expected to replace the traditional battery as a new energy source for micro electronic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/10H01M8/02H01M4/88H01M8/0271H01M8/0282
CPCY02E60/521Y02E60/50Y02P70/50
Inventor 刘江高鸿波
Owner SOUTH CHINA UNIV OF TECH