CN113238102B - Air electrode performance testing method and device - Google Patents
Air electrode performance testing method and device Download PDFInfo
- Publication number
- CN113238102B CN113238102B CN202110323619.6A CN202110323619A CN113238102B CN 113238102 B CN113238102 B CN 113238102B CN 202110323619 A CN202110323619 A CN 202110323619A CN 113238102 B CN113238102 B CN 113238102B
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- China
- Prior art keywords
- air electrode
- working box
- electrode
- stainless steel
- air
- Prior art date
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 31
- 239000010935 stainless steel Substances 0.000 claims abstract description 31
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 21
- 239000003513 alkali Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims 3
- 229910052751 metal Inorganic materials 0.000 abstract description 12
- 239000002184 metal Substances 0.000 abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 239000012670 alkaline solution Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
Abstract
The invention aims to provide a method and a device for testing the performance of an air electrode, which are used for detecting the discharge performance of the air electrode by replacing a metal electrode in a metal-air battery with a stainless steel electrode and adding an external power supply and using an alkaline solution of hydroxyl as a medium to enable oxygen on the air electrode to react, so that the discharge performance and the service life of the air electrode can be tested without participation of the metal electrode.
Description
Technical Field
The invention belongs to the technical field of metal-air batteries, and particularly relates to a method and a device for testing performance of an air electrode.
Background
A metal-air battery is one type of chemical battery. The construction principle is similar to that of a dry cell except that its oxidant is taken from the oxygen in the air. For example, an air battery uses zinc as the negative electrode, sodium hydroxide as the electrolyte, and porous activated carbon as the negative electrode, so that oxygen in the air can be adsorbed to replace the oxidant (manganese dioxide) in a general dry battery.
In order to verify the discharge performance of the air electrode of the metal-air battery, a test platform is usually built, namely, the air electrode and the metal anode are adopted to generate chemical reaction to generate electricity. The method consumes a metal anode and has higher cost; the participation of the metal anode can enhance the coupling property of the test and influence the discharge performance analysis of the air electrode; and the discharge performance analysis standard of the air electrode is inconsistent due to the inconsistency of a plurality of metal anodes.
Disclosure of Invention
The invention aims to provide a method and a device for testing the performance of an air electrode, which can test the discharge performance and the service life of the air electrode without participation of a metal anode.
The technical scheme for solving the technical problems is as follows: an air electrode performance test method comprises the following steps:
s1: placing an air electrode and a stainless steel electrode in a working box, and accommodating a hydroxide alkali solution in a pool;
s2: connecting the air electrode and the stainless steel electrode to a negative electrode and a positive electrode of an external power supply respectively;
s3: an external power supply provides voltage to the negative electrode and the positive electrode;
s4: the discharge performance of the air electrode is judged by the magnitude and duration of the current in the loop.
The utility model provides an air electrode capability test device, includes the working box and places air electrode and the stainless steel pole in the working box, the splendid attire has hydroxyl alkali solution in the working box, air electrode and stainless steel pole respectively with hydroxyl alkali solution contact, still include external power supply, external power supply's negative pole and positive pole connect air electrode and stainless steel pole respectively, still include current testing arrangement, current testing arrangement is used for detecting the electric current size in the return circuit.
The air electrode fixing device comprises a working box side wall, and is characterized by further comprising a fastening device, wherein the fastening device comprises a contact hole formed in the side wall of the working box, one side of the air electrode is in contact with the side wall of the working box on the side of the opening, one side of the air electrode is completely covered by the contact hole, the air electrode fixing device further comprises an upper limiting frame and a lower limiting frame which are used for limiting the air electrode in the horizontal direction, the air electrode penetrates through the upper limiting frame and the lower limiting frame, the upper limiting frame and the lower limiting frame are respectively fixedly connected with the side wall of the working box, the inner walls of the upper limiting frame and the lower limiting frame are respectively tightly attached to the non-contact surface of the air electrode and the side wall of the common working box, the air electrode fixing device further comprises an upper hoop and a lower hoop which are used for fixing the air electrode and pressing the contact hole, the length of the air electrode is larger than the height of the working box, and the upper hoop and the lower hoop are respectively fixedly arranged at the top and the bottom of the working box, and the upper hoop and the lower hoop are respectively locked and fixed at the part of the top of the air electrode, which is lower than the top of the working box.
The air electrode is arranged on the periphery of the contact hole, and the contact part of the air electrode and the contact hole is sealed by the sealing ring.
The fastening devices are multiple sets, and the multiple sets of fastening devices are respectively arranged on different sides of the working box.
The two sets of the fastening devices are respectively provided with two symmetrical sides of the working box, and the device also comprises a rotating bracket, wherein the rotating shaft side of the rotating bracket is fixedly connected with the side of the working box where the non-fastening device is located.
The stainless steel pole body is provided with a liquid discharge hole.
The device also comprises a bracket for bearing the working box, wherein the bracket is arranged at the bottom of the working box.
The stainless steel pole is inserted in the limiting groove through the top of the working box.
The top and the bottom of the working box are respectively provided with a liquid inlet and a liquid outlet for liquid inlet and liquid outlet.
The beneficial effects of the invention are as follows: according to the invention, the metal electrode in the metal-air battery is replaced by the stainless steel electrode, an external power supply is added, and the oxygen on the air electrode is reacted by taking the alkaline solution of hydroxyl as a medium, so that the discharge performance of the air electrode is detected, and the discharge performance and the service life of the air electrode can be detected without participation of the metal electrode.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a top view of fig. 1 in accordance with the present invention.
FIG. 3 is a schematic diagram showing the combination of the rotating shaft and the working box in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the invention includes a method for testing the performance of an air electrode, comprising the following steps:
s1: placing an air electrode and a stainless steel electrode in a working box, and accommodating hydroxide alkali solution (NaOH, concentration is 3-8 mol/L) in a tank;
s2: connecting the air electrode and the stainless steel electrode to a negative electrode and a positive electrode of an external power supply respectively;
s3: the external power supply provides voltage for the negative electrode and the positive electrode, and the voltage is set (0.8-2.0V) according to the measured actual voltage of the battery cell;
s4: the discharge performance of the air electrode is judged by the magnitude and duration of the current in the loop.
The chemical reaction equations that occur during the experiment are:
O 2 +H 2 O+4e - →4OH -
4OH - -4e - →O 2 ↑+2H 2 O；
because the stainless steel electrode is adopted, the stainless steel electrode does not react, and the discharge performance and the service life of the air electrode can be tested without the participation of a metal anode.
The utility model provides an air electrode capability test device, includes work box 1 and places air electrode 2 and stainless steel pole 3 in work box 1, the splendid attire has hydroxide alkali solution 4 in the work box 1, air electrode 2 and stainless steel pole 3 respectively with hydroxide alkali solution 4 contact, still include external power supply 5, air electrode 2 and stainless steel pole 3 are connected respectively to external power supply 5's negative pole and positive pole, still include current testing arrangement 15, current testing arrangement 15 is arranged in detecting the electric current size in the return circuit.
The air electrode 2 is fixedly connected with the side wall of the working box 1 respectively, the air electrode 2 passes through the upper limit frame 61 and the lower limit frame 62, the inner walls of the upper limit frame 61 and the lower limit frame 62 are tightly attached to non-contact surfaces of the air electrode 2 and the side wall of the common working box 1 respectively, the air electrode 2 is fixed and pressed to the contact holes, the air electrode 2 is longer than the working box 1 in length, the upper and lower hoops 71 and 72 are fixedly arranged at the top and the bottom of the working box 1 respectively, and the upper and lower hoops 71 and 72 are fixedly connected with the part of the air electrode 2 higher than the top of the working box 1 and the part lower than the bottom of the working box 1 respectively.
The air electrode device is characterized by further comprising a sealing ring 8, wherein the sealing ring 8 is arranged around the contact hole, the contact part of the air electrode 2 and the contact hole is sealed through the sealing ring 8, and when in use, the air electrode 2 is tightly pressed on the sealing ring 8 to prevent liquid from exuding.
The fastening devices are multiple sets, and the multiple sets of fastening devices are respectively arranged on different sides of the working box 1.
The two sets of fastening devices are respectively arranged on two symmetrical sides of the working box 1, the device also comprises a rotating bracket 9, and the rotating shaft side of the rotating bracket 9 is fixedly connected with the side of the working box 1 where the non-fastening device is arranged.
The stainless steel pole 3 body is provided with a liquid discharge hole 10.
Also included is a bracket 11 for carrying the work box 1, said bracket 11 being arranged at the bottom of the work box 1.
The inner bottom of the working box 1 is provided with a limiting groove 12 for limiting the position of the stainless steel pole 3, and the stainless steel pole 3 penetrates through the top of the working box 1 and is inserted into the limiting groove 12.
The top and the bottom of the working box 1 are respectively provided with a liquid inlet 13 and a liquid outlet 14 for liquid inlet and liquid outlet.
In the concrete use of the device, firstly, a stainless steel electrode 3 is inserted into a limit groove 12, then an air electrode 2 is inserted into an upper limit frame 61 and a lower limit frame 62, one side of the inserted air electrode 2 covers a contact hole, the other side of the inserted air electrode 2 is contacted with oxygen, two ends of the air electrode 2 are locked through an upper anchor ear 71 and a lower anchor ear 72 to fix the air electrode 2 and tightly press the air electrode 2 on a sealing ring to seal the contact hole so as to prevent liquid from flowing out, naOH with the concentration of 3-8mol/L is added into a working box 1, a negative electrode and a positive electrode of an external power supply 5 are respectively connected with the air electrode 2 and the stainless steel electrode 3, and the current size and the duration in a loop are detected through a current testing device 15.
The device can measure a plurality of groups of air electrodes 2 at the same time, and the air electrodes 2 are respectively inserted on different sides of the working box 1 and fixed by a plurality of corresponding fastening devices.
When a plurality of groups of air electrodes 2 are measured, preferably 2 groups of air electrodes are selected, the hydroxyl alkali solution 4 in the working box 1 cannot be filled up during the measurement, the 2 groups of air electrodes are symmetrically arranged, the rotating shaft side of the rotating bracket 9 is fixedly connected with the side of the non-fastening device of the working box 1, the purpose of the operation is to facilitate the replacement of the air electrodes 2, when the air electrodes 2 need to be replaced (the left air electrodes 2), the bracket 11 is removed, the rotating bracket 9 is reserved, the working box 1 is rotated clockwise by 90 degrees, liquid in the working box 1 rapidly flows to the bottom of the rotated working box 1 through the liquid discharge holes 10 on the stainless steel electrodes 3, the upper hoops 71 and the lower hoops 72 corresponding to the left air electrodes 2 are opened, and the left air electrodes 2 are removed and replaced; after replacement, the air electrode 2 on the right side is replaced by rotating 180 degrees counterclockwise.
The solution in the working tank 1 can be added or discharged through the liquid inlets 13 and the liquid outlets 14 at the top and the bottom.
According to the invention, the metal electrode in the metal-air battery is replaced by the stainless steel electrode, an external power supply is added, and the oxygen on the air electrode is reacted by taking the alkaline solution of hydroxyl as a medium, so that the discharge performance of the air electrode is detected, and the discharge performance and the service life of the air electrode can be detected without participation of the metal electrode.
Claims (10)
1. A method for testing the performance of an air electrode is characterized by comprising the following steps: the method comprises the following steps:
s1: placing an air electrode and a stainless steel electrode in a working box, and accommodating a hydroxide alkali solution in a pool;
s2: connecting the air electrode and the stainless steel electrode to a negative electrode and a positive electrode of an external power supply respectively;
s3: an external power supply provides voltage to the negative electrode and the positive electrode;
s4: the discharge performance of the air electrode is judged by the magnitude and duration of the current in the loop.
2. An air electrode capability test device, its characterized in that: the electric power generation device comprises a working box, an air electrode and a stainless steel electrode, wherein the air electrode and the stainless steel electrode are placed in the working box, a hydroxyl alkali solution is contained in the working box, the air electrode and the stainless steel electrode are respectively contacted with the hydroxyl alkali solution, the electric power generation device further comprises an external power supply, a negative electrode and a positive electrode of the external power supply are respectively connected with the air electrode and the stainless steel electrode, and the electric power generation device further comprises an electric current testing device, and the electric current testing device is used for detecting the electric current in a loop.
3. An air electrode performance testing apparatus according to claim 2, wherein: the air electrode fixing device comprises a working box side wall, a working box and an air electrode, and is characterized by further comprising a fastening device, wherein the fastening device comprises a contact hole formed in the side wall of the working box, one side of the air electrode is in contact with the side wall of the working box on the side of the opening, one side of the air electrode completely covers the contact hole, the air electrode fixing device further comprises an upper limiting frame and a lower limiting frame which are used for limiting the air electrode in the horizontal direction, the upper limiting frame and the lower limiting frame are respectively fixedly connected with the side wall of the working box, the air electrode penetrates through the upper limiting frame and the lower limiting frame, the inner walls of the upper limiting frame and the lower limiting frame are respectively tightly attached to the non-contact surface of the air electrode and the side wall of the common working box, the air electrode fixing device further comprises an upper hoop and a lower hoop which are used for fixing the air electrode and pressing the contact hole, the length of the air electrode is larger than the height of the working box, and the upper hoop and the lower hoop are respectively fixedly arranged at the top and the bottom of the working box.
4. An air electrode performance testing apparatus according to claim 3, wherein: the air electrode is arranged on the periphery of the contact hole, and the contact part of the air electrode and the contact hole is sealed by the sealing ring.
5. An air electrode performance testing apparatus according to claim 3, wherein: the fastening devices are multiple sets, and the multiple sets of fastening devices are respectively arranged on different sides of the working box.
6. An air electrode performance testing apparatus according to claim 5, wherein: the two sets of the fastening devices are respectively provided with two symmetrical sides of the working box, and the device also comprises a rotating bracket, wherein the rotating shaft side of the rotating bracket is fixedly connected with the side of the working box where the non-fastening device is located.
7. The air electrode performance testing apparatus of claim 6, wherein: the stainless steel pole body is provided with a liquid discharge hole.
8. An air electrode performance testing apparatus according to claim 2, wherein: the device also comprises a bracket for bearing the working box, wherein the bracket is arranged at the bottom of the working box.
9. An air electrode performance testing apparatus according to claim 2, wherein: the stainless steel pole is inserted in the limiting groove through the top of the working box.
10. An air electrode performance testing apparatus according to claim 2, wherein: the top and the bottom of the working box are respectively provided with a liquid inlet and a liquid outlet for liquid inlet and liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323619.6A CN113238102B (en) | 2021-03-26 | 2021-03-26 | Air electrode performance testing method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323619.6A CN113238102B (en) | 2021-03-26 | 2021-03-26 | Air electrode performance testing method and device |
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| Publication Number | Publication Date |
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| CN113238102A CN113238102A (en) | 2021-08-10 |
| CN113238102B true CN113238102B (en) | 2024-01-23 |
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| CN202110323619.6A Active CN113238102B (en) | 2021-03-26 | 2021-03-26 | Air electrode performance testing method and device |
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| CN114221000A (en) * | 2021-12-06 | 2022-03-22 | 中国人民解放军火箭军工程大学 | Aluminum-air battery detection system and control method thereof |
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|---|---|---|---|---|
| JP2015002040A (en) * | 2013-06-14 | 2015-01-05 | シャープ株式会社 | Metal air secondary battery |
| CN205643649U (en) * | 2016-03-31 | 2016-10-12 | 南昌航空大学 | Testing arrangement of lithium air / oxygen cell |
| JP2017147068A (en) * | 2016-02-16 | 2017-08-24 | シャープ株式会社 | Chemical cell, active material used in chemical cell, active material generation device, and active material generation method |
| WO2018016531A1 (en) * | 2016-07-21 | 2018-01-25 | 日立化成株式会社 | Secondary cell system |
| JP2018107058A (en) * | 2016-12-28 | 2018-07-05 | 植田 義明 | Magnesium air battery |
| CN109975706A (en) * | 2017-12-14 | 2019-07-05 | 中国科学院大连化学物理研究所 | A kind of test method in oxygen reduction cathode service life |
| CN111413573A (en) * | 2020-05-13 | 2020-07-14 | 郑州佛光发电设备有限公司 | Air electrode life testing device and testing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5574516B2 (en) * | 2011-11-16 | 2014-08-20 | 日本碍子株式会社 | Zinc-air secondary battery |
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2021
- 2021-03-26 CN CN202110323619.6A patent/CN113238102B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015002040A (en) * | 2013-06-14 | 2015-01-05 | シャープ株式会社 | Metal air secondary battery |
| JP2017147068A (en) * | 2016-02-16 | 2017-08-24 | シャープ株式会社 | Chemical cell, active material used in chemical cell, active material generation device, and active material generation method |
| CN205643649U (en) * | 2016-03-31 | 2016-10-12 | 南昌航空大学 | Testing arrangement of lithium air / oxygen cell |
| WO2018016531A1 (en) * | 2016-07-21 | 2018-01-25 | 日立化成株式会社 | Secondary cell system |
| JP2018107058A (en) * | 2016-12-28 | 2018-07-05 | 植田 義明 | Magnesium air battery |
| CN109975706A (en) * | 2017-12-14 | 2019-07-05 | 中国科学院大连化学物理研究所 | A kind of test method in oxygen reduction cathode service life |
| CN111413573A (en) * | 2020-05-13 | 2020-07-14 | 郑州佛光发电设备有限公司 | Air electrode life testing device and testing method |
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