CN102738472A - Stable air electrode of zinc-air battery - Google Patents
Stable air electrode of zinc-air battery Download PDFInfo
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- CN102738472A CN102738472A CN2012102292607A CN201210229260A CN102738472A CN 102738472 A CN102738472 A CN 102738472A CN 2012102292607 A CN2012102292607 A CN 2012102292607A CN 201210229260 A CN201210229260 A CN 201210229260A CN 102738472 A CN102738472 A CN 102738472A
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- zinc
- stable type
- type air
- air cell
- air
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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 discloses a stable air electrode of a zinc-air battery, which comprises a waterproof layer, an air diffusion layer, a catalyst layer, a current collector and a catalyst layer which are sequentially arranged. The air diffusion layer is a hydrophobic polymer polytetrafluoroethylene film. With the adoption of the stable air electrode, the leakage of electrolyte in the battery can be effectively prevented, and a stable three-phase interface is formed.
Description
Technical field
The present invention relates to a kind of zinc-air cell, relate in particular to a kind of zinc-air cell stable type air electrode.
Background technology
Air electrode is the key technology of zinc-air cell, the structure that present existing air electrode structure is Catalytic Layer/watertight composition/collector/watertight composition.This structure adds the porousness waterproof membrane that one deck forms by adding pore creating material between collector and Catalytic Layer; Because the hole of porousness waterproof membrane is bigger; The seepage that can not stop electrolyte fully; Cause liquid interface constantly to be passed from inside to outside, thereby make air electrode can not stablize heavy-current discharge and shortening electrode life.
Summary of the invention
The purpose of this invention is to provide a kind of zinc-air cell stable type air electrode.
The objective of the invention is to realize through following technical scheme:
Zinc-air cell stable type air electrode of the present invention comprises watertight composition, gas diffusion layers, Catalytic Layer, collector, the Catalytic Layer of arranging successively.
Technical scheme by the invention described above provides can be found out, zinc-air cell stable type air electrode provided by the invention is owing to comprise watertight composition, gas diffusion layers, Catalytic Layer, collector, the Catalytic Layer of arranging successively.Can prevent the seepage of inside battery electrolyte effectively, form a stable three phase boundary.
Description of drawings
The structural representation of the zinc-air cell stable type air electrode that Fig. 1 provides for the embodiment of the invention.
Embodiment
To do to describe in detail further to the embodiment of the invention below.
Zinc-air cell stable type air electrode of the present invention, its preferable embodiment is:
Comprise watertight composition, gas diffusion layers, Catalytic Layer, collector, the Catalytic Layer of arranging successively.
Said gas diffusion layers is a hydrophobic polymer material polytetrafluoroethylene film.
Said gas diffusion layers is preferably the hydrophobic polymeric material polytetrafluoroethylene film that thickness is 80 μ m.
Said watertight composition comprises the acetylene black of hydrophobic polymer material polytetrafluoroethylene and good conductivity.
Said collector is the hole wire netting that conducting metal is processed.
Said Catalytic Layer comprises catalyst, hydrophobic polymer material and the good activated carbon of electric conductivity.
The mass ratio of said activated carbon that catalyst, hydrophobic polymer material and electric conductivity is good is 1:2:7.
Zinc-air cell stable type air electrode of the present invention; Through polytetrafluoroethylene film being replaced the porousness waterproof membrane; Polytetrafluoroethylene film has advantages of good waterproof property; The seepage that can effectively stop electrolyte does not influence the entering of ambient atmos simultaneously, is easy to form stable three-phase reaction interface.But polytetrafluoroethylmaterial material has good electrical insulation capability, and being close to polytetrafluoroethylene film is the good Catalytic Layer of electric conductivity, has both prevented that metal collector did not influence conductivity again to the destruction of film in pressing process.Can prevent the seepage of inside battery electrolyte effectively, form a stable three phase boundary.
Specific embodiment:
As shown in Figure 1, comprise watertight composition 1, gas diffusion layers 2, Catalytic Layer 3, collector 4, Catalytic Layer 5.
Said watertight composition is by the acetylene black roll-in film forming of hydrophobic polymer material polytetrafluoroethylene and good conductivity.
Said gas diffusion layers is the hydrophobic polymeric material polytetrafluoroethylene film.
Said collector is 80 order copper mesh.
Said Catalytic Layer is that the activated carbon that catalyst, hydrophobic polymer material and electric conductivity is good mixes according to mass ratio 1:2:7, forms through roll-in.
The present invention through with polytetrafluoroethylene film as gas diffusion layers, can effectively stop the seepage of electrolyte, do not influence simultaneously gas O
2Entering, be easy to form stable three-phase reaction interface, solved air electrode and can not stablize heavy-current discharge and air pole short problem in useful life.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (7)
1. a zinc-air cell stable type air electrode is characterized in that, comprises watertight composition, gas diffusion layers, Catalytic Layer, collector, the Catalytic Layer of arranging successively.
2. zinc-air cell stable type air electrode according to claim 1 is characterized in that, said gas diffusion layers is a hydrophobic polymer material polytetrafluoroethylene film.
3. zinc-air cell stable type air electrode according to claim 2 is characterized in that, the thickness of said gas diffusion layers is 80 μ m.
4. according to claim 1,2 or 3 described zinc-air cell stable type air electrodes, it is characterized in that said watertight composition comprises the acetylene black of hydrophobic polymer material polytetrafluoroethylene and good conductivity.
5. according to claim 1,2 or 3 described zinc-air cell stable type air electrodes, it is characterized in that said collector is the hole wire netting that conducting metal is processed.
6. according to claim 1,2 or 3 described zinc-air cell stable type air electrodes, it is characterized in that said Catalytic Layer comprises catalyst, hydrophobic polymer material and the good activated carbon of electric conductivity.
7. zinc-air cell stable type air electrode according to claim 6 is characterized in that, the mass ratio of said activated carbon that catalyst, hydrophobic polymer material and electric conductivity is good is 1:2:7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102292607A CN102738472A (en) | 2012-07-03 | 2012-07-03 | Stable air electrode of zinc-air battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102292607A CN102738472A (en) | 2012-07-03 | 2012-07-03 | Stable air electrode of zinc-air battery |
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| CN102738472A true CN102738472A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102292607A Pending CN102738472A (en) | 2012-07-03 | 2012-07-03 | Stable air electrode of zinc-air battery |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716331A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Air cathode for zinc air cell |
| CN104716332A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Double catalytic layer air cathode for metal air battery |
| CN104716334A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Double hydrophobic layer air cathode used for metal/air battery |
| CN106960961A (en) * | 2017-03-23 | 2017-07-18 | 北京化工大学 | Air electrode structure for zinc-air flow battery and preparation method thereof |
| CN108736019A (en) * | 2018-04-10 | 2018-11-02 | 云南铝业股份有限公司 | Metal fuel battery air electrode and preparation method thereof |
| CN111070960A (en) * | 2019-11-27 | 2020-04-28 | 台州市非常金属燃料电池研究中心 | Decorative flower pot |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1738085A (en) * | 2004-08-17 | 2006-02-22 | 中国电子科技集团公司第十八研究所 | Positive electrode for zinc-air battery and its manufacturing method |
| CN101197444B (en) * | 2006-12-08 | 2010-06-16 | 比亚迪股份有限公司 | Air electrode, and method and device for producing the same |
| CN202067864U (en) * | 2011-05-05 | 2011-12-07 | 天津市诺奇新能源科技有限公司 | Air electrode of zinc-air battery |
-
2012
- 2012-07-03 CN CN2012102292607A patent/CN102738472A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1738085A (en) * | 2004-08-17 | 2006-02-22 | 中国电子科技集团公司第十八研究所 | Positive electrode for zinc-air battery and its manufacturing method |
| CN100341179C (en) * | 2004-08-17 | 2007-10-03 | 中国电子科技集团公司第十八研究所 | Positive electrode for zinc-air battery and its manufacturing method |
| CN101197444B (en) * | 2006-12-08 | 2010-06-16 | 比亚迪股份有限公司 | Air electrode, and method and device for producing the same |
| CN202067864U (en) * | 2011-05-05 | 2011-12-07 | 天津市诺奇新能源科技有限公司 | Air electrode of zinc-air battery |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716331A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Air cathode for zinc air cell |
| CN104716332A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Double catalytic layer air cathode for metal air battery |
| CN104716334A (en) * | 2013-12-15 | 2015-06-17 | 中国科学院大连化学物理研究所 | Double hydrophobic layer air cathode used for metal/air battery |
| CN104716332B (en) * | 2013-12-15 | 2017-03-01 | 中国科学院大连化学物理研究所 | A kind of metal-air battery dual-catalysis layer air cathode |
| CN104716334B (en) * | 2013-12-15 | 2017-05-03 | 中国科学院大连化学物理研究所 | Double hydrophobic layer air cathode used for metal/air battery |
| CN106960961A (en) * | 2017-03-23 | 2017-07-18 | 北京化工大学 | Air electrode structure for zinc-air flow battery and preparation method thereof |
| CN108736019A (en) * | 2018-04-10 | 2018-11-02 | 云南铝业股份有限公司 | Metal fuel battery air electrode and preparation method thereof |
| CN111070960A (en) * | 2019-11-27 | 2020-04-28 | 台州市非常金属燃料电池研究中心 | Decorative flower pot |
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Application publication date: 20121017 |