CN2906947Y - Carbonation-resistant oxygen electrode of zinc-air metallic fuel battery - Google Patents
Carbonation-resistant oxygen electrode of zinc-air metallic fuel battery Download PDFInfo
- Publication number
- CN2906947Y CN2906947Y CNU2006200126636U CN200620012663U CN2906947Y CN 2906947 Y CN2906947 Y CN 2906947Y CN U2006200126636 U CNU2006200126636 U CN U2006200126636U CN 200620012663 U CN200620012663 U CN 200620012663U CN 2906947 Y CN2906947 Y CN 2906947Y
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- CN
- China
- Prior art keywords
- carbonating
- air
- zinc
- layer
- fuel battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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 utility model discloses an oxygen electrode of a carbonation-resistant zinc-air metal fuel cell, which is composed of an air electrode and a metal cathode; wherein the air electrode is provided with a catalyst layer and a carbonation-resistant separator added on the lateral side of the catalyst layer, the metal cathode is enwrapped by a layer of carbonation-resistant separator. The carbonation-resistant separator added on the lateral side of the catalyst layer is made by adding a protective coating to the separator paper of an alkaline cell coated with a layer of carbonate material when baked into the semi-dry state; the layer of carbonation-resistant separator enwrapping the metal cathode is made by adding the protective coating to the enwrapped separator paper of an alkaline cell coated with a layer of carbonate resin when baked into the semi-dry state.
Description
Technical field
The utility model belongs to electrochemical techniques and battery manufacturing technology field, relates in particular to a kind of zinc-air metal fuel battery oxygen electrode of anti-carbonating.
Technical background
Along with science and technology develops rapidly, people's living standard improves day by day, and people are more and more higher to energy dependence, people constantly expand the purposes of battery product, and the fast development of particularly electric motor car industry needs the specific energy height, discharge performance is steady, the power supply of high-specific-power.Present used lead-acid battery, lithium ion battery, Ni-MH battery, they or specific energy are on the low side, or on the high side, are difficult to satisfy the electric motor car market demand; Zinc-air metal fuel battery capacity is big, the specific energy height, stable operating voltage, abundant raw materials, cheap, advantage such as pollution-free, the performance requirement that can adapt to electric motor car, but zinc-air metal fuel battery is a unenclosed construction, and wet shelf characteric is relatively poor, its wet storage property and intermittent discharge poor performance.Key factor is: Carbon Dioxide in Air gas passes through air electrode, a part forms potash in air electrode, a part enters in the electrolyte and produces carbonating with the potassium hydroxide solution reaction, cause potash crystallization in air electrode, stop up the air electrode air-vent or air electrode spalling breakage, enter electrolyte simultaneously after, the concentration reduction of potassium hydroxide, the decreased performance of battery, cisco unity malfunction.According to above key problem, this patent has changed the material of air electrode barrier film, and proportioning and technology improve metal negative pole membrane properties, and the generation that suppresses carbonating has obvious effects.
Summary of the invention
The purpose of this utility model provides a kind of zinc-air metal fuel battery oxygen electrode of anti-carbonating, it can suppress air electrode because of carbonate crystallization causes the carbonating of air electrode breakage and electrolyte, can improve the intermittent discharge ability of zinc-air metal fuel battery.
For achieving the above object, the utility model is taked following design: a kind of zinc of anti-carbonating-air metal fuel battery oxygen electrode, constitute by air electrode and metal negative pole, have Catalytic Layer on the air electrode, add the barrier film that the anti-carbonating of one deck is handled in the Catalytic Layer outside; Be enclosed with the membrane layer that anti-carbonating is handled on the metal negative pole.
The anti-carbonating in the described Catalytic Layer outside is handled barrier film and is added layer and be coated with by the diaphragm paper of alkaline battery and be covered with the carbonate material layer and dry by the fire and add a protection rete again after the half-dried attitude and make.
The anti-carbonating of wrapping up on the described metal negative pole is handled membrane layer and is dried by the fire extremely by diaphragm paper of alkaline cell parcel back coatings-layer carbonate resin layer and coat protective film after the half-dried attitude and make.
Advantage of the present utility model is:
1, adds the membrane layer that anti-carbonating is handled in air electrode, the Catalytic Layer inboard of zinc-air metal fuel battery, can suppress air electrode and cause the air electrode breakage, effectively improved the cycle life of air electrode because of carbonate crystallization.
2, adopt the barrier film parcel of special process processing at the metal negative pole of zinc-air metal fuel battery, can effectively suppress the carbonating of zinc-air metal fuel battery neutral and alkali electrolyte, improve battery intermittent discharge ability.
3, improved zinc-air metal fuel battery effectively and wet storage period, but Da-year.
Description of drawings
Zinc-air metal fuel battery oxygen electrode structure the schematic diagram of the anti-carbonating of Fig. 1 the utility model
Embodiment
As shown in Figure 1, the zinc-air metal fuel battery oxygen electrode of the anti-carbonating of the utility model is made of air electrode 1 and metal negative pole 3, has Catalytic Layer on the air electrode, adds the barrier film 5 that the anti-carbonating of one deck is handled in Catalytic Layer 2 outsides; The membrane layer 6 that has anti-carbonating to handle on the metal negative pole.
Zinc-air metal fuel battery oxygen electrode adopts the carbonate synthesis salt material, evenly be coated on the air electrode barrier film and the barrier film of parcel zinc electrode on, improve the shelf characteric and heavy-current discharge performance at intermittence of battery effectively, overcome the seepage of battery and climb the alkali phenomenon, and the voltage influence little (can ignore) during to load.
The described anti-carbonating processing barrier film of putting that adds in Catalytic Layer 2 outsides is (the Catalytic Layer outside) in zinc-air metal fuel battery air electrode inboard, adopt the diaphragm paper of alkaline battery, apply the special-purpose carbonate material of last layer earlier, in the placement baking oven+40 ℃ of half-dried attitudes of baking, taking-up adds protective filmy layer solution, put back to again in the baking oven+40 ℃ of oven dry get final product.When the work of zinc-air metal fuel battery, this layer barrier film soaked by electrolyte, have carbon dioxide to enter to form behind the air electrode carbonate, acid carbonate can diffuses flow in battery, the HCO in the membrane layer
3 -Can keep its saturation condition, the carbon dioxide ability that suppresses the external world is along with reinforcement, be unlikely to produce the carbonating crystallization the air electrode spalling on the inner three phase boundary of air electrode, reduction is stopped up the air-vent of air electrode because of carbonate crystallization, the circulation of air electrode, changes the life-span and improves greatly.
The anti-carbonating of wrapping up on the described metal negative pole is handled membrane layer; it is after zinc electrode metal negative pole periphery is wrapped up with diaphragm paper of alkaline cell; apply one deck carbonate resin; put into baking oven+40 ℃ baking to half-dried attitude; coat layer protecting film solution after the taking-up, put back to again in the baking oven+40 ℃ of oven dry get final product.In battery operated, can improve the shelf characteric of battery effectively, improve big electric current intermittent discharge performance, overcome the battery seepage and climbed the alkali phenomenon, load voltage is unaffected.
The performance of the zinc-air metal fuel battery oxygen electrode of the anti-carbonating of the utility model improves principle:
1, the carbonate resin in the barrier film is CO
2GAS ABSORPTION in barrier film, reaction equation:
CO
3 -+CO
2+H
2O＝2HCO
3 -。
2, when the acid carbonate in the membrane layer reaches capacity, can suppress CO in the air
2Entering of gas causes concentration of electrolyte to reduce.
3, in the barrier film because of being coated with macromolecule imbibition resin protective layer, alkaline reaction is gelatinization voluntarily, the material of barrier film (comprising carbonate, acid carbonate etc.) is difficult for diffuses flow in battery, [the HCO in the membrane layer
3 -] can keep its saturation condition, suppress CO in the air
2The gas ability, along with keeping down, this kind technology has improved zinc-air metal fuel battery intermittent discharge performance, has improved its wet storage.
Adopt technical solutions of the utility model, my company utilizes the machinery that zinc-development of air metal fuel battery oxygen electrode is made of this anti-carbonating to change formula power zinc-air metal fuel battery, be installed on the electronic big bus car, technical parameter is: 312V capacity 500Ah, wherein adopt being combined on the rated voltage 288V power 55KW vehicle of 624 monomers (in the lump a string) to move, test, this Battery pack intermittent duty was since on December 6th, 2005, to on January 19th, 2006, about jede Woche trial run 80km, more than 40 day discontinuous operation 300km.When battery machine is changed, check that air electrode and electrolyte not because carbonating causes battery performance to descend, effectively suppress the carbonation process problem of zinc-air metal fuel battery.
Claims (3)
1, a kind of zinc of anti-carbonating-air metal fuel battery oxygen electrode is made of air electrode and metal negative pole, has Catalytic Layer on the air electrode, it is characterized in that: add the barrier film that the anti-carbonating of one deck is handled in the Catalytic Layer outside; Be enclosed with the membrane layer that anti-carbonating is handled on the metal negative pole.
2, the zinc of anti-carbonating according to claim 1-air metal fuel battery oxygen electrode is characterized in that: the anti-carbonating in the described empty Catalytic Layer outside is handled barrier film and is added layer and be coated with by the diaphragm paper of alkaline battery and be covered with the carbonate material layer and dry by the fire and add a protection rete again after the half-dried attitude and make.
3, the zinc of anti-carbonating according to claim 1-air metal fuel battery oxygen electrode is characterized in that: the anti-carbonating of wrapping up on the described metal negative pole is handled membrane layer and is applied the baking of one deck carbonate resin layer by diaphragm paper of alkaline cell parcel back and coat protective film to the half-dried attitude and make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200126636U CN2906947Y (en) | 2006-04-11 | 2006-04-11 | Carbonation-resistant oxygen electrode of zinc-air metallic fuel battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200126636U CN2906947Y (en) | 2006-04-11 | 2006-04-11 | Carbonation-resistant oxygen electrode of zinc-air metallic fuel battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906947Y true CN2906947Y (en) | 2007-05-30 |
Family
ID=38115591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200126636U Expired - Fee Related CN2906947Y (en) | 2006-04-11 | 2006-04-11 | Carbonation-resistant oxygen electrode of zinc-air metallic fuel battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN2906947Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151490A (en) * | 2012-12-21 | 2013-06-12 | 中国科学院大连化学物理研究所 | Metal/ air battery positive electrode protection method |
| CN111244580A (en) * | 2020-01-16 | 2020-06-05 | 荆门市探梦科技有限公司 | In-situ physical catalysis step reaction type metal fuel cell system |
-
2006
- 2006-04-11 CN CNU2006200126636U patent/CN2906947Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151490A (en) * | 2012-12-21 | 2013-06-12 | 中国科学院大连化学物理研究所 | Metal/ air battery positive electrode protection method |
| CN103151490B (en) * | 2012-12-21 | 2015-07-08 | 中国科学院大连化学物理研究所 | Metal/ air battery positive electrode protection method |
| CN111244580A (en) * | 2020-01-16 | 2020-06-05 | 荆门市探梦科技有限公司 | In-situ physical catalysis step reaction type metal fuel cell system |
| CN111244580B (en) * | 2020-01-16 | 2021-09-14 | 荆门市探梦科技有限公司 | In-situ physical catalysis step reaction type metal fuel cell system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING ZHONGHANG CHANGLI ENERGY TECHNOLOGY CO., L Free format text: FORMER OWNER: BEIJING CHANGLI UNION ENERGY SOURCE TECHNOLOGY CO. LTD. Effective date: 20101025 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 102308 OBLIQUELY OPPOSITE SIDE OF SHANG AN PRIMARY SCHOOL, SHANG AN PARK, SHILONG INDUSTRIAL DISTRICT, MENTOUGOU DISTRICT, BEIJING TO: 102300 NO.33, ZHONGMENSI, MENTOUGOU DISTRICT, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101025 Address after: 102300 Beijing city Mentougou District Tianmen Temple No. 33 Patentee after: Beijing AVIC Changli Energy and Technology Co.,Ltd. Address before: 102308, Mentougou District, Beijing Shilong Industrial Park ashore primary school diagonally opposite Patentee before: Changli United Energy Tech Co., Ltd., Beijing |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20130411 |