CN103000970A - Ion exchange membrane for Al-H2O2 semi-fuel cell and cell using same - Google Patents
Ion exchange membrane for Al-H2O2 semi-fuel cell and cell using same Download PDFInfo
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- CN103000970A CN103000970A CN2012104454625A CN201210445462A CN103000970A CN 103000970 A CN103000970 A CN 103000970A CN 2012104454625 A CN2012104454625 A CN 2012104454625A CN 201210445462 A CN201210445462 A CN 201210445462A CN 103000970 A CN103000970 A CN 103000970A
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- anode
- cathode
- exchange membrane
- semi
- fuel cell
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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
Abstract
The invention relates to an ion exchange membrane for an Al-H2O2 semi-fuel cell and a cell using the same. The ion exchange membrane is an AMA-40 anion exchange membrane. The cell provided by the invention comprises an anode part and a cathode part arranged on both sides of the anion exchange membrane. Due to the adoption of the AMA-40 anion exchange membrane, charges can be conducted through OH- during the discharge process of the cell, and OH- generated by the cathode can be transferred to the anode automatically so as to obviate the excessive accumulation of the OH- in catholyte, lower the decomposition rate of H2O2, improve the utilization rate of the H2O2, and supplement the OH- to the anode, thereby reducing use amount of NaOH in anolyte, reducing the addition amount of electrolyte, improving specific energy of the cell, blocking cations, effectively blocking the migration of Al<3+> to the cathode, preventing the formation of Al(OH)3 precipitate, improving the cell performance and prolonging the service life of the ion exchange membrane.
Description
Technical field
The invention belongs to technical field of chemical power, particularly relate to a kind of high energy low consumption Al-H
2O
2Semi-fuel cell.
Background technology
Al-H
2O
2Semi-fuel cell maximum system energy density is high, is particularly suitable for long-time discharge.At Al-H
2O
2In the semi-fuel cell, because H
2O
2Catholyte contacts with positive plate direct chemical reaction can occur, this side reaction can not produce foreign current, but can consume the active material more than 50%, reduce the output energy of battery, therefore usually adopt and such as the Nafion cation-exchange membrane cathode and anode is kept apart.Al-H
2O
2Main chemical reactions equation as shown in table 1 occurs during battery discharge, and along with the carrying out of exoelectrical reaction, the negative electrode negative electrical charge is on the increase, because the Nafion cation-exchange membrane is that selectivity sees through Na
+, stop simultaneously anion to see through, so Na
+Be transferred to the catholyte from anolyte, realize the charge conservation of battery; Usually can there be following three drawbacks when adopting cation-exchange membrane: at first, because H
2O
2Electrode one side will constantly generate OH
-, OH
-Continuous accumulation the pH value of solution is raise, and under alkali condition, along with the increase of pH value, H
2O
2Decompose and produce O
2Speed can obviously increase, therefore cause H
2O
2Utilance significantly reduces.Secondly, because cation-exchange membrane can't be blocked the Al in the anode part
3+To the diffusion of negative electrode, Al
3+Understand the OH with negative electrode
-Form Al (OH)
3Colloidal precipitation, the catalytic performance of reduction cathod catalyst affects the regular picture reaction of negative electrode, and the generation of precipitation also can reduce ionic conductivity and the useful life of amberplex greatly.At last, for 6e
-Direct oxidation is as shown in table 1,2molAl
3+Need 8mol Na
+Come conduct charges, NaOH concentration must be Al in solution
3+More than 4 times, could satisfy the needs of battery discharge, higher material consumption has reduced the high-energy-density advantage of battery.
Table 1Al-H
2O
2The main chemical reactions equation of semi-fuel cell
| Negative electrode: | 3H 2O 2 +6e --→6OH - |
| Anode: | 2Al+8OH --→2AlO 2 -+4H 2O+6e - |
| Cell reaction: | 2Al+3H 2O 2+2OH --→2AlO 2 -+4H 2O |
Summary of the invention
The present invention provides H for solving the technical problem that exists in the background technology
2O
2A kind of Al-H that utilance is high, raw materials consumption is few, produce without the colloid sediment
2O
2The semi-fuel cell amberplex.
The technical scheme that the present invention takes is:
Al-H
2O
2The semi-fuel cell amberplex is characterized in: described amberplex is AMA-40 type anion-exchange membrane.
Adopt the Al-H of AMA-40 type anion exchange film preparation
2O
2Semi-fuel cell is characterized in: be positioned at the sealing of two sides, the anion-exchange membrane left and right sides and be fixed with anode part and cathode portion; Anode part comprises the anode casing that is shaped with an anode groove on the one side, and the anode groove floor is shaped with two holes, is respectively the outlet of anolyte import and anolyte, is anode current collector plate, metallic anode plate and anode flow channel from left to right in the anode casing; Cathode portion comprises the cathode shell that is shaped with a cathode slots on the one side, and the cathode slots bottom surface is shaped with two holes, is respectively the outlet of catholyte import and catholyte, and cathode shell is interior to be cathode collector plate, catalytic cathode and cathode flow channels from right-to-left.
The present invention can also adopt following technical scheme:
Described anode flow channel is that Vertical Uniform of metallic anode plate is pasted cylindrical phenolic resins barrier film grain, is formed by the gap between the barrier film grain; Described cathode flow channels is that the nickel foam substrate one side of catalytic cathode evenly is suppressed with groove.
Be shaped with a cannelure on the corresponding surface of described anode casing and amberplex as the anode seal groove, be shaped with a cannelure on the contact-making surface of cathode shell and amberplex as the negative electrode seal groove, the shape of anode seal groove and negative electrode seal groove is identical, be of a size of scaled down; The seal groove of anode casing is built-in with the anode seal circle; The seal groove of cathode shell is built-in with the negative electrode sealing ring.
Described anode is aluminium alloy.
Described anode casing and cathode shell material are thickness greater than the 3240 epoxy phenolics plates of 10mm; The anode part on described anion-exchange membrane and two sides, the left and right sides and cathode portion are loaded into one by the screw bolt and nut sealing.
Advantage and good effect that the present invention has are:
1, the present invention is at Al-H
2O
2In the semi-fuel cell since adopted AMA-40 type anion-exchange membrane as amberplex because, selectivity has seen through anion, battery passes through OH in discharge process
-Conduct charges, the OH that negative electrode produces
-Can be automatically transferred to anode, not only avoid OH
-Excessive accumulation in catholyte has reduced H
2O
2Decomposition rate, Effective Raise H
2O
2Utilance, and anode has also obtained OH
-Replenish, thereby reduce the consumption of NaOH in the anolyte, reduced electrolytical addition, improved the specific energy of battery.
2, the present invention has stopped that also cation passes through owing to adopt AMA-40 type anion-exchange membrane, has effectively blocked Al
3+To the migration of negative electrode, prevented Al (OH)
3The formation of precipitation, the useful life of having improved battery performance and amberplex.
Description of drawings
Fig. 1 is the Al-H that adopts the present invention's preparation
2O
2The semi-fuel cell structural representation;
Among the figure, 1-negative electrode sealing ring; The 2-cathode shell; The 3-nut; The 4-bolt; The 5-cathode slots; The outlet of 6-catholyte; 7-cathode collector plate; The 8-catalytic cathode; The 9-cathode flow channels; The import of 10-catholyte; The 11-anion-exchange membrane; The import of 12-anolyte; 13-anode current collector plate; The 14-positive plate; The 15-anode flow channel; The outlet of 16-anolyte; 17-anode groove; The 18-anode casing; 19-anode seal circle; The 20-cathode portion; The 21-anode part.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
Al-H
2O
2The semi-fuel cell amberplex, its innovative point is: described amberplex is AMA-40 type anion-exchange membrane.
Adopt the Al-H of AMA-40 type anion exchange film preparation
2O
2Semi-fuel cell, its innovative point is: be positioned at the sealing of two sides, the anion-exchange membrane left and right sides and be fixed with anode part and cathode portion; Anode part comprises the anode casing that is shaped with an anode groove on the one side, and the anode groove floor is shaped with two holes, is respectively the outlet of anolyte import and anolyte, is anode current collector plate, metallic anode plate and anode flow channel from left to right in the anode casing; Cathode portion comprises the cathode shell that is shaped with a cathode slots on the one side, and the cathode slots bottom surface is shaped with two holes, is respectively the outlet of catholyte import and catholyte, and cathode shell is interior to be cathode collector plate, catalytic cathode and cathode flow channels from right-to-left.
Embodiment
Adopt AMA-40 type anion exchange film preparation Al-H of the present invention
2O
2The process of semi-fuel cell: as shown in Figure 1:
At thickness greater than the square 3240 epoxy phenolics plates of 10mm as the material of making anode part 21 and cathode portion 20, anode part processes an anode groove 17 as anode casing 18 for the one side centre, the anode groove floor is shaped with two holes, respectively as anolyte import 12 and anolyte outlet 16, anode casing respectively processes a through hole near four jiaos of places, make a cannelure as the anode seal groove on the unsealed end face of anode casing, place anode seal circle 19 in the anode seal groove, the anode current collector plate 13 of making for the nickel plate from left to right in the anode groove, the positive plate 14 that aluminium alloy is made, the another side Vertical Uniform of positive plate is pasted cylindrical phenolic resins barrier film grain, and the gap between the barrier film grain forms anode flow channel 15; Cathode portion processes a cathode slots corresponding with the anode groove 5 as cathode shell 2 for the one side centre, the cathode slots bottom surface is shaped with two holes, respectively as catholyte import 10 and catholyte outlet 6, cathode shell respectively processes through holes corresponding with the through hole at the close four jiaos of places of anode casing near four jiaos of places, make an annular seal groove as the negative electrode seal groove on the unsealed end face of cathode shell, the size of negative electrode seal groove is amplified a circle than the size equal proportion of anode seal groove, when making two housing seals fixedly, form two parallel annular seal grooves, place negative electrode sealing ring 1 in the negative electrode seal groove, cathode slots is interior to be the cathode collector plate 7 that the nickel plate is made from right-to-left, catalytic cathode 8 and cathode flow channels 9, wherein, with the substrate of porous nickel mesh as catalytic cathode, substrate is positioned at cathode collector plate one side, substrate simultaneously plates layer of gold as reducing catalyst, evenly suppresses groove as cathode flow channels at the substrate another side; Then the not sealing end face correspondence with anode casing and cathode shell is attached to AMA-40 type anion-exchange membrane 11 two sides, pass the through hole at anode casing and four jiaos of places of cathode shell with bolt 4, with nut 3 fastening bolts, anode casing and cathode shell sealing are fixed into one; Form high energy low consumption Al-H of the present invention
2O
2Semi-fuel cell.When battery operated, by peristaltic pump with 3.4%NaCl+2.5M KOH+10g/LNa
2SnO
3Anolyte flows into from the anolyte import, flow out from the anolyte outlet to circulate, by another peristaltic pump with 3.4%NaCl+0.5M H
2O
2Catholyte flows into from the catholyte import, flows out from the catholyte outlet to circulate, to Al-H of the present invention
2O
2Semi-fuel cell discharges and tested in 4 hours, and reaction temperature is room temperature, and flow is 25ml/min, H
2O
2Utilance can reach 78.6%.
Comparative Examples
Preparation process is identical with embodiment, and difference is that amberplex adopts cation-exchange membrane Nafion115; Because OH in the catholyte
-Constantly accumulation, the pH value constantly raises, and makes H
2O
2Decomposition rate increases; Discharge and test H after 4 hours
2O
2Utilance only is 27.2%.
From above result as can be known: because the present invention adopts anion-exchange membrane as the barrier film between the anode and cathode, can selectivity see through OH
-, OH
-Directly conduct to anode by negative electrode, avoided OH
-Accumulation at negative electrode has reduced H
2O
2Be decomposed into O
2Speed, so H
2O
2Utilance is increased to 78.6%.And adopted the Al-H of Nafion cation-exchange membrane in the past
2O
2Battery, H
2O
2Utilance only is 27.2%.Simultaneously, adopt anion-exchange membrane, stopped that also cation sees through, effectively blocked Al
3+To the migration of negative electrode, prevented Al (OH)
3The formation of precipitation can also improve useful life and the specific energy of battery.
Although the above is described the preferred embodiments of the present invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (6)
1.Al-H
2O
2The semi-fuel cell amberplex is characterized in that: described amberplex is AMA-40 type anion-exchange membrane.
2. adopt the Al-H of claim 1 preparation
2O
2Semi-fuel cell is characterized in that: be positioned at the sealing of two sides, the anion-exchange membrane left and right sides and be fixed with anode part and cathode portion; Anode part comprises the anode casing that is shaped with an anode groove on the one side, and the anode groove floor is shaped with two holes, is respectively the outlet of anolyte import and anolyte, is anode current collector plate, metallic anode plate and anode flow channel from left to right in the anode casing; Cathode portion comprises the cathode shell that is shaped with a cathode slots on the one side, and the cathode slots bottom surface is shaped with two holes, is respectively the outlet of catholyte import and catholyte, and cathode shell is interior to be cathode collector plate, catalytic cathode and cathode flow channels from right-to-left.
3. Al-H according to claim 2
2O
2The semi-fuel cell amberplex is characterized in that: described anode flow channel is that Vertical Uniform of metallic anode plate is pasted cylindrical phenolic resins barrier film grain, is formed by the gap between the barrier film grain; Described cathode flow channels is that the nickel foam substrate one side of catalytic cathode evenly is suppressed with groove.
4. Al-H according to claim 2
2O
2The semi-fuel cell amberplex, it is characterized in that: be shaped with a cannelure on the corresponding surface of described anode casing and amberplex as the anode seal groove, be shaped with a cannelure on the contact-making surface of cathode shell and amberplex as the negative electrode seal groove, the shape of anode seal groove and negative electrode seal groove is identical, be of a size of scaled down; The seal groove of anode casing is built-in with the anode seal circle; The seal groove of cathode shell is built-in with the negative electrode sealing ring.
5. Al-H according to claim 2
2O
2The semi-fuel cell amberplex is characterized in that: described anode is aluminium alloy.
6. Al-H according to claim 2
2O
2The semi-fuel cell amberplex is characterized in that: described anode casing and cathode shell material are thickness greater than the 3240 epoxy phenolics plates of 10mm; The anode part on described anion-exchange membrane and two sides, the left and right sides and cathode portion are loaded into one by the screw bolt and nut sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104454625A CN103000970A (en) | 2012-11-09 | 2012-11-09 | Ion exchange membrane for Al-H2O2 semi-fuel cell and cell using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104454625A CN103000970A (en) | 2012-11-09 | 2012-11-09 | Ion exchange membrane for Al-H2O2 semi-fuel cell and cell using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103000970A true CN103000970A (en) | 2013-03-27 |
Family
ID=47929273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104454625A Pending CN103000970A (en) | 2012-11-09 | 2012-11-09 | Ion exchange membrane for Al-H2O2 semi-fuel cell and cell using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103000970A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500865A (en) * | 2013-10-18 | 2014-01-08 | 清华大学 | Lithium-cathode semi-fuel cell component |
| CN105762396A (en) * | 2016-03-03 | 2016-07-13 | 重庆大学 | Flat-plate heat regeneration ammonium battery adopting foam metal electrode |
| CN106374129A (en) * | 2016-11-09 | 2017-02-01 | 大连融科储能技术发展有限公司 | Flow-cell electric-pile sealing structure |
| CN107004879A (en) * | 2014-11-25 | 2017-08-01 | 庄信万丰燃料电池有限公司 | Film seal assembly |
Citations (3)
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|---|---|---|---|---|
| US20030124418A1 (en) * | 2002-01-03 | 2003-07-03 | Dow Eric G. | Separated flow liquid catholyte aluminum hydrogen peroxide seawater semi fuel cell |
| CN101242017A (en) * | 2007-12-28 | 2008-08-13 | 中国航天科技集团公司第六研究院第十一研究所 | Half fuel cell |
| CN102332586A (en) * | 2011-10-12 | 2012-01-25 | 中国电子科技集团公司第十八研究所 | Semi-fuel battery for providing power in water |
-
2012
- 2012-11-09 CN CN2012104454625A patent/CN103000970A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030124418A1 (en) * | 2002-01-03 | 2003-07-03 | Dow Eric G. | Separated flow liquid catholyte aluminum hydrogen peroxide seawater semi fuel cell |
| CN101242017A (en) * | 2007-12-28 | 2008-08-13 | 中国航天科技集团公司第六研究院第十一研究所 | Half fuel cell |
| CN102332586A (en) * | 2011-10-12 | 2012-01-25 | 中国电子科技集团公司第十八研究所 | Semi-fuel battery for providing power in water |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500865A (en) * | 2013-10-18 | 2014-01-08 | 清华大学 | Lithium-cathode semi-fuel cell component |
| CN103500865B (en) * | 2013-10-18 | 2015-08-19 | 清华大学 | A kind of Lithium-cathode semi-fuel cell component |
| CN107004879A (en) * | 2014-11-25 | 2017-08-01 | 庄信万丰燃料电池有限公司 | Film seal assembly |
| CN107004879B (en) * | 2014-11-25 | 2020-06-05 | 庄信万丰燃料电池有限公司 | Membrane seal assembly |
| CN105762396A (en) * | 2016-03-03 | 2016-07-13 | 重庆大学 | Flat-plate heat regeneration ammonium battery adopting foam metal electrode |
| CN105762396B (en) * | 2016-03-03 | 2018-03-23 | 重庆大学 | A kind of flat hot recycling ammonia battery using foam metal electrode |
| CN106374129A (en) * | 2016-11-09 | 2017-02-01 | 大连融科储能技术发展有限公司 | Flow-cell electric-pile sealing structure |
| CN106374129B (en) * | 2016-11-09 | 2023-11-28 | 大连融科储能技术发展有限公司 | Flow battery pile sealing structure |
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Application publication date: 20130327 |