CN102709572A - Novel air electrode and preparation method thereof - Google Patents
Novel air electrode and preparation method thereof Download PDFInfo
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- CN102709572A CN102709572A CN2012102292715A CN201210229271A CN102709572A CN 102709572 A CN102709572 A CN 102709572A CN 2012102292715 A CN2012102292715 A CN 2012102292715A CN 201210229271 A CN201210229271 A CN 201210229271A CN 102709572 A CN102709572 A CN 102709572A
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- air electrode
- novel air
- collector
- catalytic layer
- waterproof ventilative
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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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Abstract
The invention discloses a novel air electrode and a preparation method thereof. The novel air electrode comprises a waterproof breather layer and a catalyst layer, wherein the waterproof breather layer and the catalyst layer are provided with current collectors, and the current collectors are pressed and moulded by heat sealing. The novel air electrode has the characteristics of high limiting diffusion current density, high conductivity, good chemical stability, uniform current distribution, long service life and the like.
Description
Technical field
The present invention relates to a kind of electrode of zinc-air cell, relate in particular to a kind of novel air electrode and preparation method thereof.
Background technology
Zinc-air cell has advantages such as specific energy height, stable operating voltage, raw material be cheap and easy to get, is widely used in fields such as navigation light, unmanned observation station, military equipment, electric vehicle, mobile communication equipment.Zinc-air cell is to make negative pole with the negative metallic zinc of electrode potential, makes positive active material with airborne oxygen, and electrolyte generally adopts aqueous alkaline electrolyte.Air electrode plays key effect in whole zinc-air cell system.And the air electrode performance is receiving preparation technology, waterproof ventilative layer performance, Preparation of Catalyst and influence of various factors such as performance and collector.Air electrode mainly is divided into Catalytic Layer, collector, gas diffusion layers, waterproof ventilative layer; The preparation technology of air electrode is generally after Catalytic Layer, gas diffusion layers, the waterproof ventilative layer difference roll-in film forming at present; According to a graded each layer film and collector are arranged again, be rolled into air electrode through twin-roll machine.This kind air electrode is layering easily in the process of being suitable for, and destroys the formation of three phase boundary, thereby influences the entering of air, reduction of service life.
Summary of the invention
The purpose of this invention is to provide that a kind of limiting diffusion current density is high, conductivity is high, chemical stability good, CURRENT DISTRIBUTION is even, the novel air electrode of long working life and preparation method thereof.
The objective of the invention is to realize through following technical scheme:
Novel air electrode of the present invention comprises waterproof ventilative layer and Catalytic Layer, and said waterproof ventilative layer and Catalytic Layer are provided with collector.
The preparation method of above-mentioned novel air electrode of the present invention comprises step:
At first, the Catalytic Layer raw material are uniformly dispersed with ethanol is ultrasonic, add 5%～35% ptfe emulsion, stir into pulpous state;
Then, waterproof ventilative layer is placed on orlop,, the Catalytic Layer raw material of pulpous state evenly is coated on the collector heat seal compression moulding in the middle of collector puts.
Technical scheme by the invention described above provides can be found out, novel air electrode provided by the invention, owing to comprise waterproof ventilative layer and Catalytic Layer, said waterproof ventilative layer and Catalytic Layer are provided with collector, through heat seal compression moulding.Have limiting diffusion current density height, characteristics such as conductivity is high, chemical stability good, CURRENT DISTRIBUTION is even, long working life.
Description of drawings
The structural representation of the novel 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.
Novel air electrode of the present invention, its preferable embodiment is:
Comprise waterproof ventilative layer and Catalytic Layer, said waterproof ventilative layer and Catalytic Layer are provided with collector.
Described collector is processed by following any one or more material: nickel foam, nickel screen, silver-plated copper mesh, stainless (steel) wire, foam copper.
Described waterproof ventilative layer adopts polytetrafluoroethylene film, is perhaps mixed after be rolled into waterproof ventilated membrane by acetylene black, active carbon, graphite, polytetrafluoroethylene, ethanol.
Described Catalytic Layer raw material comprise conductive agent and catalyst, and said conductive agent is a material with carbon element, and said catalyst comprises following any one or more material: MnSO
4, Mn (NO
3)
2, KMnO
4, CoSO
4, Co (NO
3)
2, CoCl
2, NiSO
4, Ni (NO
3)
2, NiCl
2, polytetrafluoroethylene.
The preparation method of above-mentioned novel air electrode of the present invention, its preferable embodiment comprises step:
At first, the Catalytic Layer raw material are uniformly dispersed with ethanol is ultrasonic, add 5%～35% ptfe emulsion, stir into pulpous state;
Then, waterproof ventilative layer is placed on orlop,, the Catalytic Layer raw material of pulpous state evenly is coated on the collector heat seal compression moulding in the middle of collector puts.
The temperature of said heat seal compacting is 80-200 ℃, and pressure is 20-150bar.
Novel air electrode of the present invention has limiting diffusion current density height, characteristics such as conductivity is high, chemical stability good, CURRENT DISTRIBUTION is even, long working life.
Specific embodiment:
As shown in Figure 1, the novel air electrode that the zinc-air cell that heat seal process method of the present invention is made is used comprises a waterproof ventilative layer 1 and a Catalytic Layer 2, and the centre is placed with a collector 3, and the three adopts the heat seal process method one-body molded.
Described collector can adopt different materials, as: nickel foam, nickel screen, silver-plated copper mesh, stainless (steel) wire and foam copper etc.
Described waterproof ventilative layer can adopt polytetrafluoroethylene film or partly or entirely mixed after be rolled into waterproof ventilated membrane by acetylene black, active carbon, graphite, polytetrafluoroethylene, ethanol.
Described Catalytic Layer raw material are by material with carbon element, MnSO
4, Mn (NO
3)
2, KMnO
4, CoSO
4, Co (NO
3)
2, CoCl
2, NiSO
4, Ni (NO
3)
2, NiCl
2Be mixed and made into the part or all of raw material of polytetrafluoroethylene.
Said air electrode heat seal process manufacturing process is following:
Described Catalytic Layer raw material are uniformly dispersed with ethanol is ultrasonic, add 5%～35% ptfe emulsion, stir into pulpous state.Then waterproof ventilative layer is placed on orlop, adopts silver-plated copper mesh or nickel foam, the catalysing material of pulpous state is applied evenly be coated on the collector heat seal compression moulding as in the middle of collector puts.The temperature of heat seal is 80-200 ℃, and pressure remains on 20-150bar.
Air electrode of zinc-air cell manufacture craft of the present invention is simple, rational in infrastructure, can be used for having important economic and social benefit on the multi-purpose zinc-air cell.
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 (6)
1. a novel air electrode is characterized in that, comprises waterproof ventilative layer and Catalytic Layer, and said waterproof ventilative layer and Catalytic Layer are provided with collector.
2. novel air electrode according to claim 1 is characterized in that, described collector is processed by following any one or more material: nickel foam, nickel screen, silver-plated copper mesh, stainless (steel) wire, foam copper.
3. novel air electrode according to claim 1 is characterized in that, described waterproof ventilative layer adopts polytetrafluoroethylene film, is perhaps mixed after be rolled into waterproof ventilated membrane by acetylene black, active carbon, graphite, polytetrafluoroethylene, ethanol.
4. novel air electrode according to claim 1 is characterized in that, described Catalytic Layer raw material comprise conductive agent and catalyst, and said conductive agent is a material with carbon element, and said catalyst comprises following any one or more material: MnSO
4, Mn (NO
3)
2, KMnO
4, CoSO
4, Co (NO
3)
2, CoCl
2, NiSO
4, Ni (NO
3)
2, NiCl
2, polytetrafluoroethylene.
5. the preparation method of each described novel air electrode of claim 1 to 4 is characterized in that, comprises step:
At first, the Catalytic Layer raw material are uniformly dispersed with ethanol is ultrasonic, add 5%～35% ptfe emulsion, stir into pulpous state;
Then, waterproof ventilative layer is placed on orlop,, the Catalytic Layer raw material of pulpous state evenly is coated on the collector heat seal compression moulding in the middle of collector puts.
6. the preparation method of novel air electrode according to claim 5 is characterized in that, the temperature of said heat seal compacting is 80-200 ℃, and pressure is 20-150bar.
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|---|---|---|---|
| CN2012102292715A CN102709572A (en) | 2012-07-03 | 2012-07-03 | Novel air electrode and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102292715A CN102709572A (en) | 2012-07-03 | 2012-07-03 | Novel air electrode and preparation method thereof |
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| CN102709572A true CN102709572A (en) | 2012-10-03 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538646A (en) * | 2015-01-15 | 2015-04-22 | 昆明冶金研究院 | Method for manufacturing air electrode of aluminum-air cell |
| CN105810954A (en) * | 2016-04-05 | 2016-07-27 | 扬州大学 | Active carbon air negative electrode and preparation method thereof |
| CN106654295A (en) * | 2017-01-18 | 2017-05-10 | 东南大学 | Air cathode based on boron-nitrogen-carbon ternary covalent composite material, preparation method for air cathode, and zinc air secondary battery |
| CN106887601A (en) * | 2015-12-15 | 2017-06-23 | 新材料与产业技术北京研究院 | A kind of preparation method of gas-diffusion electrode |
| 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 |
| CN110890550A (en) * | 2019-11-29 | 2020-03-17 | 蔚蓝(广东)新能源科技有限公司 | Air electrode and preparation method and application thereof |
| CN111933954A (en) * | 2020-08-07 | 2020-11-13 | 中科院过程工程研究所南京绿色制造产业创新研究院 | Air electrode, preparation method thereof and air battery |
| CN112687897A (en) * | 2020-12-29 | 2021-04-20 | 长沙迅洋新材料科技有限公司 | Consolidation preparation method of waterproof breathable layer material for magnesium metal air battery |
| CN112687890A (en) * | 2020-12-29 | 2021-04-20 | 长沙迅洋新材料科技有限公司 | Manganese catalytic material for magnesium-based metal air battery anode and preparation method thereof |
| CN113186556A (en) * | 2021-04-23 | 2021-07-30 | 天津大学 | Modularized air self-diffusion cathode-titanium iridium anode electrode group and cathode preparation method |
| CN114335636A (en) * | 2021-12-31 | 2022-04-12 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Preparation method and application of high-power long-life membrane electrode |
| CN116417625A (en) * | 2023-06-09 | 2023-07-11 | 超威电源集团有限公司 | Preparation method of air electrode and high-power zinc-air battery |
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| US5122426A (en) * | 1989-09-04 | 1992-06-16 | Varta Batterie Aktiengesellschaft | Gas-tight, sealed alkaline secondary cell |
| CN101326675A (en) * | 2005-12-06 | 2008-12-17 | 雷沃尔特科技有限公司 | Bifunctionan air electrode |
| CN102074709A (en) * | 2010-12-17 | 2011-05-25 | 武汉泓元伟力新能源科技有限公司 | Air electrode, preparation method thereof and metal air battery provided with air electrode |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538646A (en) * | 2015-01-15 | 2015-04-22 | 昆明冶金研究院 | Method for manufacturing air electrode of aluminum-air cell |
| CN106887601B (en) * | 2015-12-15 | 2018-04-20 | 新材料与产业技术北京研究院 | A kind of preparation method of gas-diffusion electrode |
| CN106887601A (en) * | 2015-12-15 | 2017-06-23 | 新材料与产业技术北京研究院 | A kind of preparation method of gas-diffusion electrode |
| CN105810954A (en) * | 2016-04-05 | 2016-07-27 | 扬州大学 | Active carbon air negative electrode and preparation method thereof |
| CN106654295B (en) * | 2017-01-18 | 2019-04-30 | 东南大学 | A kind of air cathode based on the covalent composite material of boron nitrogen carbon ternary and preparation method thereof and zinc air secondary cell |
| CN106654295A (en) * | 2017-01-18 | 2017-05-10 | 东南大学 | Air cathode based on boron-nitrogen-carbon ternary covalent composite material, preparation method for air cathode, and zinc air secondary battery |
| 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 |
| CN110890550A (en) * | 2019-11-29 | 2020-03-17 | 蔚蓝(广东)新能源科技有限公司 | Air electrode and preparation method and application thereof |
| CN111933954A (en) * | 2020-08-07 | 2020-11-13 | 中科院过程工程研究所南京绿色制造产业创新研究院 | Air electrode, preparation method thereof and air battery |
| CN112687897A (en) * | 2020-12-29 | 2021-04-20 | 长沙迅洋新材料科技有限公司 | Consolidation preparation method of waterproof breathable layer material for magnesium metal air battery |
| CN112687890A (en) * | 2020-12-29 | 2021-04-20 | 长沙迅洋新材料科技有限公司 | Manganese catalytic material for magnesium-based metal air battery anode and preparation method thereof |
| CN113186556A (en) * | 2021-04-23 | 2021-07-30 | 天津大学 | Modularized air self-diffusion cathode-titanium iridium anode electrode group and cathode preparation method |
| CN114335636A (en) * | 2021-12-31 | 2022-04-12 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Preparation method and application of high-power long-life membrane electrode |
| CN116417625A (en) * | 2023-06-09 | 2023-07-11 | 超威电源集团有限公司 | Preparation method of air electrode and high-power zinc-air battery |
| CN116417625B (en) * | 2023-06-09 | 2023-09-19 | 超威电源集团有限公司 | Preparation method of air electrode and high-power zinc-air battery |
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Application publication date: 20121003 |