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All-solid-state carbon-air battery

An air battery, all-solid-state technology, used in solid electrolyte fuel cells, fuel cells, circuits, etc., can solve problems such as threatening health and life safety, affecting battery applications, reducing battery discharge efficiency, etc. high effect

Active Publication Date: 2016-12-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the DC-SOFC developed above will emit CO and CO 2 Gas, the specific content of the exhaust gas is related to the working conditions. The emission of CO not only reduces the discharge efficiency of the battery, but also threatens human health and life safety, which seriously affects the application of such batteries in portable power sources; the greenhouse gas CO 2 emissions limit the application of this electrochemical conversion method in clean coal technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Weigh 25g of YSZ (Tosoh), add 38g of alcohol, 2g of PVB, 0.8g of DOP, 0.8g of PEG, and 0.8g of TEA, and ball mill to obtain a uniformly dispersed slurry. The YSZ electrolyte tube green body is prepared by impregnation. The prepared electrolyte green body was placed in a crucible filled with YSZ mother powder, then put into a muffle furnace, and sintered in an air atmosphere at 1450°C for 4 hours to obtain a dense YSZ electrolyte tube with good mechanical strength. The tube is about 4cm long, with an inner diameter of 0.9cm and a wall thickness of 0.23mm.

[0052] Weigh PVB and terpineol with a mass ratio of 1:9 respectively, place them in a beaker, and dissolve them in a water bath at 60°C for 24 hours as a binder for later use. According to Ag and GDC (Ce 0.8 Gd 0.2 o 1.9 ) with a mass ratio of 7:3 to take by weighing 5.8g silver paste (DAD-87, Shanghai Institute of Synthetic Resin, containing 80% Ag) and 2g GDC (after ball milling), and then weighing 11.7g of the p...

Embodiment 2

[0059] Weigh 25g of YSZ (Tosoh), add 38g of alcohol, 2g of PVB, 0.8g of DOP, 0.8g of PEG, and 0.8g of TEA, and ball mill to obtain a uniformly dispersed slurry. The YSZ electrolyte tube green body is prepared by impregnation. The prepared electrolyte green body was placed in a crucible filled with YSZ mother powder, put into a muffle furnace, and sintered in an air atmosphere at 1450°C for 4 hours to obtain a dense YSZ electrolyte tube with good mechanical strength. The tube is about 3.6cm long, with an inner diameter of 0.9cm and a wall thickness of 0.23mm.

[0060] Weigh PVB and terpineol with a mass ratio of 1:9 respectively, place them in a beaker, and dissolve them in a water bath at 60°C for 24 hours as a binder for later use. According to Ag and GDC (Ce 0.8 Gd 0.2 o 1.9 ) with a mass ratio of 7:3 to take by weighing 5.8g silver paste (DAD-87, Shanghai Institute of Synthetic Resin, containing 80% Ag) and 2g GDC (after ball milling), and then weighing 11.7g of the past...

Embodiment 3

[0067] Weigh 25g of YSZ (Tosoh), add 38g of alcohol, 2g of PVB, 0.8g of DOP, 0.8g of PEG, and 0.8g of TEA, and ball mill to obtain a uniformly dispersed slurry. The YSZ electrolyte tube green body is prepared by impregnation. The prepared electrolyte green body was placed in a crucible filled with YSZ mother powder, put into a muffle furnace, and sintered in an air atmosphere at 1450°C for 4 hours to obtain a dense YSZ electrolyte tube with good mechanical strength. The tube is about 3cm long, with an inner diameter of 0.9cm and a wall thickness of 0.23mm.

[0068] Weigh PVB and terpineol with a mass ratio of 1:9 respectively, place them in a beaker, and dissolve them in a water bath at 60°C for 24 hours as a binder for later use. According to Ag and GDC (Ce 0.8 Gd 0.2 o 1.9 ) with a mass ratio of 7:3 to take by weighing 5.8g silver paste (DAD-87, Shanghai Institute of Synthetic Resin, containing 80% Ag) and 2g GDC (after ball milling), and then weighing 11.7g of the paste ...

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Abstract

The invention discloses an all-solid-state carbon-air battery which comprises an electrolyte supporting body, a porous anode layer, a porous cathode layer, carbon powder, a sealing cover and a sealing material, and further comprises powder calcium oxide; the electrolyte supporting body is of a tubular structure of which one end is open and the other end is closed, or the electrolyte supporting body is box-shaped, the porous anode layer is arranged on the inner wall of the electrolyte supporting body, and the porous cathode layer is arranged on the outer wall of the electrolyte supporting body; the carbon powder and the powder calcium oxide are mixed and arranged in the porous anode layer of the electrolyte supporting body, or the carbon powder is located in the closed end of the tubular structure, while the powder calcium oxide is located between the open end of the tubular structure and the powder carbon. The all-solid-state carbon-air battery disclosed by the invention has the theoretical capacity which reaches 1577mA h, and can discharge electricity in large currents, thereby being particularly suitable for being used as a portable power supply, and further capable of being developed into high-efficiency clean coal or biomass carbon power generation technology without gas emissions.

Description

technical field [0001] The present invention relates to a solid oxide fuel cell, in particular to an all-solid carbon-air battery, in particular to a solid oxide electrolyte, oxygen in the air as the cathode active material, and carbon as the anode active material. Electrochemical oxidation power generation, while using calcium oxide to absorb all the carbon dioxide produced by the battery reaction. Background technique [0002] In modern life, people's demand for various high-performance batteries continues to grow. There are various problems in various batteries currently on the market. For example, although lead-acid batteries are low in cost, mature in technology, and can be discharged at high currents, their capacity is too low, and the raw materials will pollute the environment; the capacity of lithium-ion batteries is relatively high. It is relatively high, but it cannot be discharged with a large current, and there are serious safety problems; other batteries either...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/10H01M8/06H01M8/0668
CPCH01M8/06H01M8/0668H01M8/10Y02E60/50
Inventor 刘江周倩蔡位子王晓强张亚鹏刘美林
Owner SOUTH CHINA UNIV OF TECH
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