CN102683730A - Method and device for recovering property of air electrode of air cell - Google Patents
Method and device for recovering property of air electrode of air cell Download PDFInfo
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- CN102683730A CN102683730A CN201210184486XA CN201210184486A CN102683730A CN 102683730 A CN102683730 A CN 102683730A CN 201210184486X A CN201210184486X A CN 201210184486XA CN 201210184486 A CN201210184486 A CN 201210184486A CN 102683730 A CN102683730 A CN 102683730A
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- air cell
- electrode
- air
- cover cap
- property
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a method and a device for recovering the property of an air electrode of an air cell. The method for recovering the property of the air electrode of the air cell provided by the invention comprises the following steps: placing the air cell into a closed container; correspondingly connecting the anode and the cathode of the air cell with electrodes of a discharging instrument through leads; starting the discharging instrument to enable the air cell to discharge; and controlling a discharging current between 5 amperes and 10 amperes and lasting for 0.5-4 hours. The cell is reversely charged under an airtight environment and the property of the electrode is recovered. On the basis of not changing the present electrode material and processing technology, the property of the electrode can be greatly recovered with little investment; the recycling service life of the air cell is prolonged; and the production cost is saved.
Description
Technical field
The present invention relates to a kind of air pole performance recovery method and device of air cell.
Background technology
Because the significantly lifting of the battery performance that has very big specific area and bring thus, gas-diffusion electrode is extensively adopted as metal-air battery and fuel cell electrode.Yet in long use, will occur inevitably descending owing to receive the performance that influences gas-diffusion electrode of various factors.As discharging through multiple cycles, activity of such catalysts can reduce, and catalyst granules can spread with the diffusion of materials such as water and proton in gas electrode inside simultaneously; For alkaline battery, alkali lye can form carbonate after having absorbed carbon dioxide in air, and gas-liquid duct in the electrode is stopped up in its crystallization meeting, and then causes declining to a great extent of electrode reaction efficient.
Improve the gas-diffusion electrode method of life at present and can be divided into two kinds: be a kind of through improvement raising electrode life to electrode material, catalyst; Like Chinese patent 200510032676.X disclosed " a kind of preparation method of zinc-air cell eelctro-catalyst "; Introduced a kind of preparation method of zinc-air cell eelctro-catalyst; Take by weighing Li, Mn, Co metal soluble salt by a certain percentage, heating behind the adding solvent solution-forming, oven dry, heat treatment obtains eelctro-catalyst; Thereby another kind of method through improvement electrode manufacture craft change electrode structure reaches the purpose that improves electrode life; Having introduced a kind of like " functional material " fourth phase in 2006 disclosed " sintering is to the life-span of air electrode and the influence of microcellular structure " is raw material with active carbon, acetylene black, PTFE emulsion, the method that sintering is made air electrode in inert gas after the roll-in.First method relates to new material, Preparation of catalysts electrode life through the improvement of electrode material, catalyst is improved; Cost of manufacture is higher; Be unfavorable for popularizing, its corresponding subsequent technology such as material recovery etc. need be carried out corresponding supporting exploitation simultaneously, drop into bigger; Second method changes the manufacture craft of electrode also need develop corresponding manufacturing and processing equipment, needs bigger input equally.
Summary of the invention
The air pole performance recovery method and the device that the purpose of this invention is to provide a kind of simple air cell; To the gas-diffusion electrode performance decrease that various factors causes, need not electrode material and manufacture craft improved to significantly improve electrode performance.
For achieving the above object, the present invention adopts following technical scheme:
The air pole performance recovery method of air cell according to the invention is characterized in that comprising the steps:
A) air cell is placed in the closed container, should be connected with the electrode pair of discharge instrument through the both positive and negative polarity of lead with air cell;
B) open discharge instrument and make the air cell discharge, discharging current is controlled at 5 amperes---between 10 amperes, and the duration 0.5---4 hours.
The used device of air pole performance recovery method like above-mentioned air cell; It is characterized in that: said closed container comprises base plate, removably is connected cover cap on the base plate; Base plate is provided with annular groove, and cover cap is fastened in the annular groove, is embedded with lead on the cover cap; One end of said lead is arranged in the cover cap inner chamber, and the other end of lead is positioned at the outside of cover cap.
Owing to there has not been the participation reaction of oxygen, in fact battery is in the state of a kind of " reverse charge " under sealed environment, and meeting exciting electrode catalyst is owing to repeatedly using the activity that descends; Simultaneously, the crystallization salt that stops up the porous electrode micro channel can be decomposed and be ionic condition, and the diffusion of porous electrode thereby be restored is the place that provides with reaction of passing through of gas.The comprehensive function of this two aspect is gone up electrode performance.The structure of device has guaranteed sealing, has also made things convenient for the replacing of battery, when changing, only needs cover cap is uncovered, and takes out battery and changes new battery, in annular groove, smears the vaseline sealing again and gets final product.On the basis that does not change existing electrode material, processing technology, only need very little input can realize the significantly rise of electrode performance, improve it and recycle the life-span, practiced thrift production cost.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention closed container.
Embodiment
Through the air cell of multiple cycles discharge, its operating voltage be reduced to rated voltage 80% the time, its performance reduces significantly, just needs this moment with following method recovery air pole performance.
The air pole performance recovery method of air cell according to the invention comprises the steps:
A) air cell is placed in the closed container, should be connected with the electrode pair of discharge instrument through the both positive and negative polarity of lead with air cell; The discharge instrument specification should reference and the supporting monocell technical parameter of gas-diffusion electrode, and electrode current density is consistent with its working current density when making operation.Like the zinc and air cell technical parameter is 1v, 10A, and then discharge instrument is selected 3/5v, and 20A is advisable.
B) open discharge instrument and make the air cell discharge, discharging current is 5 amperes, half an hour duration.According to different monocell technical parameters, discharging current maybe be at 5 amperes---select between 10 amperes, be 0.5 corresponding discharge time---4 hours.Discharge is closed discharge instrument after accomplishing, and takes out air cell, detects its performance and promotes significantly.
As shown in Figure 1, said closed container comprises base plate 1, removably is connected cover cap 2 on the base plate 1, and base plate 1 is provided with annular groove 3, and cover cap 2 is fastened in the annular groove 3.In order to improve sealing property, can in annular groove 3, smear vaseline, the cover cap 2 and the contact-making surface of annular groove 3 are sealed.Be embedded with lead 4,5 on the cover cap 2, an end of said lead 4,5 is arranged in the electrode that cover cap 2 inner chambers are used to connect air cell; The other end of lead 4,5 is positioned at the outside of cover cap 2, is used to connect discharge instrument.
Claims (2)
1. the air pole performance recovery method of air cell is characterized in that comprising the steps:
A) air cell is placed in the closed container, should be connected with the electrode pair of discharge instrument through the both positive and negative polarity of lead with air cell;
B) open discharge instrument and make the air cell discharge, discharging current is controlled at 5 amperes---between 10 amperes, and the duration 0.5---4 hours.
2. the used device of air pole performance recovery method of air cell as claimed in claim 1; It is characterized in that: said closed container comprises base plate (1), removably is connected cover cap (2) on the base plate (1); Base plate (1) is provided with annular groove (3); Cover cap (2) is fastened in the annular groove (3); Be embedded with lead (4,5) on the cover cap (2), an end of said lead (4,5) is arranged in cover cap (2) inner chamber, and the other end of lead (4,5) is positioned at the outside of cover cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210184486XA CN102683730A (en) | 2012-06-07 | 2012-06-07 | Method and device for recovering property of air electrode of air cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210184486XA CN102683730A (en) | 2012-06-07 | 2012-06-07 | Method and device for recovering property of air electrode of air cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102683730A true CN102683730A (en) | 2012-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210184486XA Pending CN102683730A (en) | 2012-06-07 | 2012-06-07 | Method and device for recovering property of air electrode of air cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102683730A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008026054A1 (en) * | 2006-09-01 | 2008-03-06 | Toyota Jidosha Kabushiki Kaisha | Solid polymer fuel cell and method for activating same |
| CN201185527Y (en) * | 2008-04-24 | 2009-01-21 | 大连晨光电气控制有限公司 | Electric sealing box |
-
2012
- 2012-06-07 CN CN201210184486XA patent/CN102683730A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008026054A1 (en) * | 2006-09-01 | 2008-03-06 | Toyota Jidosha Kabushiki Kaisha | Solid polymer fuel cell and method for activating same |
| CN201185527Y (en) * | 2008-04-24 | 2009-01-21 | 大连晨光电气控制有限公司 | Electric sealing box |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |