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Cathode packet for metal air fuel cell and application thereof

A fuel cell and metal-air technology, which is applied to fuel cell type half cells and primary cell type half cells, battery electrodes, circuits, etc., can solve the problems of inconvenience to carry, difficult to clean, shortened life of anodes, etc., and achieve easy portability. , excellent performance, the effect of reducing production costs

Inactive Publication Date: 2015-11-25
AINENG NEW ENERGY TECH TIANJIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this form of metal cathode plate has a very big defect, because metal hydroxide or metal oxide deposits will be produced after the metal oxidation reaction, and they will be slowly attached to the anode, resulting in shortened anode life, especially The sediment produced by the magnesium-air fuel cell after the oxidation reaction has a very high viscosity, and it is very difficult to clean after it is pasted on the anode stack
Most of the electrolytes of existing metal-air fuel cells use sodium hydroxide (NaOH) or potassium hydroxide (KOH), especially magnesium-air fuel cells, most of which use salt water (NaCl) as electrolytes; aluminum or Zinc-air fuel cells mostly use sodium hydroxide (NaOH) strong alkali solution or potassium hydroxide (KOH) as the electrolyte. Generally, when the oxidation reaction occurs, the temperature will rise and a large amount of hydrogen (H 2 ), and in order to prevent the generation of hydrogen gas (H 2 ) Therefore, it is necessary to add an inhibitor to suppress the generation of hydrogen, so the general aluminum or zinc-air fuel cell not only uses a strong alkaline solution that is inconvenient to carry as the electrolyte, but also considers safety issues

Method used

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  • Cathode packet for metal air fuel cell and application thereof
  • Cathode packet for metal air fuel cell and application thereof
  • Cathode packet for metal air fuel cell and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 aluminum and magnesium mixed powder cathode package

[0024] According to the size of the metal cathode, cut out a non-woven fabric of PP or PE or PET material of the corresponding size, and wrap the cathode terminal. Mix aluminum and magnesium mixed powder with a total mass of 39.7 grams according to the mass ratio of aluminum: magnesium = 2:8, and add 10 grams of potassium chloride, 0.25 grams of calcium oxide and 0.05 potassium sulfide inhibitor to the cathode package grams, and finally seal the non-woven fabric cathode package, the mass of each component in the cathode powder package is proportional to the capacity.

[0025] When the metal-air fuel cell is in use, insert the cathode package into the anode, and then inject 100cc of water. After 3-5 seconds, the water is absorbed by the non-woven fabric, causing a chemical reaction inside the metal-air fuel cell to generate electricity. Its performance curve is as figure 1 shown.

Embodiment 2

[0026] Embodiment 2 Aluminum-magnesium alloy plate cathode package

[0027] According to the size of the metal cathode, cut out a non-woven fabric of PP or PE or PET material of the corresponding size, and wrap the cathode terminal. Add the aluminum-magnesium alloy plate that the quality is 39.7 grams in the cathode package, add 30 grams of potassium chloride, 2 grams of calcium oxide and 1 gram of potassium sulfide inhibitor at the same time, finally seal the non-woven fabric cathode package again, the cathode powder package The mass of each component is directly proportional to its capacity.

[0028] When the metal-air fuel cell is in use, insert the cathode package into the anode, and then inject 100cc of water. After 3-5 seconds, the water is absorbed by the non-woven fabric, causing a chemical reaction inside the metal-air fuel cell to generate electricity. Its performance curve is as figure 2 shown.

Embodiment 3

[0029] Embodiment 3 aluminum and magnesium mixed powder cathode package (adding cerium hydroxide (Ce(OH) 3 )rear)

[0030] According to the size of the metal cathode, the middle layer of the corresponding size is PE, and the upper and lower layers are non-woven fabrics made of PP materials, and 1 gram of carboxymethyl cellulose is added to the non-woven fabric to wrap the cathode terminal. Mix aluminum and magnesium mixed powder with a total mass of 39.7 grams according to the mass ratio of aluminum: magnesium = 2:8, and add 10 grams of potassium chloride, 0.25 grams of calcium oxide and 0.05 potassium sulfide inhibitor to the cathode package Gram, the performance of metal mixed powder bag in embodiment 1 ( figure 1 ) than the performance of aluminum-magnesium alloy plate in embodiment 2 ( figure 2 ) is slightly lower. In order to improve the performance of the metal mixed powder package, another 0.5 g of cerium hydroxide (Ce(OH) 3 ), and finally the non-woven fabric cath...

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PUM

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Abstract

The invention provides a cathode packet for a metal air fuel cell. The cathode packet uses non-woven fabric as a packaging material, and comprises the following components in percentages by weight: 78.5% to 89.4% of mixed metal powder or metal alloy, 10% to 20% of powered electrolyte, 0.5% to 1% of CaO and 0.1% to 0.5% of hydrogen inhibitor. The cathode packet adopts the manner of a metal cathode powder packet, is convenient to carry, can react to generate electric energy as long as water is supplied at any place, and is excellent in performance.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a cathode package for a metal-air fuel cell and its application. Background technique [0002] In today's world, new and renewable energy technologies continue to develop, and renewable energy and new energy development technologies are slowly being applied to various fields; under the influence of global warming, the field of new and renewable energy will gradually become the dominant energy field in the future. Moreover, the new renewable energy technology is also gradually being developed in the field of fuel cells, and the capacity of batteries is also slowly developing from small capacity to large capacity. [0003] Currently, proton exchange membrane fuel cells (PEMFC) and direct methanol fuel cells (DMFC) have been commercially produced and used, but their prices have remained high; in addition, solid oxide fuel cells (SOFC) and molten carbonate fuel cells (MCFC) and ot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M12/06
CPCH01M4/9041H01M4/9075H01M12/06Y02E60/10
Inventor 朴廷泰刘学君陈风徐涛魏喆
Owner AINENG NEW ENERGY TECH TIANJIN CO LTD