CN204481093U - A kind of novel aluminum-air cell preventing electrode corrosion - Google Patents
A kind of novel aluminum-air cell preventing electrode corrosion Download PDFInfo
- Publication number
- CN204481093U CN204481093U CN201520024893.3U CN201520024893U CN204481093U CN 204481093 U CN204481093 U CN 204481093U CN 201520024893 U CN201520024893 U CN 201520024893U CN 204481093 U CN204481093 U CN 204481093U
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- China
- Prior art keywords
- negative pole
- core body
- corrosion
- electrolyte
- air 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
- Y02E60/10—Energy storage using batteries
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- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model discloses a kind of novel aluminum-air cell preventing electrode corrosion, comprise negative pole, positive pole, electrolyte, battery container, corrosion barrier.Described negative pole comprises negative pole core body, and described negative pole core body is coated with zinc coat, and the outer surface of negative pole core body is close to by described zinc coat.Described negative pole and positive pole are located in battery container, and the electrolyte be stored in battery container directly contacts negative pole and positive pole.Corrosion barrier comprises the electrical connection suppression part core body of negative pole and the corrosion inhibiting material layer of coated suppression part core body, corrosion inhibiting material layer be located at negative pole adjacent position or and cathode contact, suppress the chemical reaction between zinc coat and electrolyte.The utility model structure is simple, inhibits electrolyte between the aluminum-air cell storage life to the corrosion of electrode, to avoid aluminum-air cell and separate with electrolyte the shortcoming deposited.
Description
Technical field
The utility model relates to air cell field, what be specifically related to is a kind of novel aluminum-air cell preventing electrode corrosion.
Background technology
Aluminum-air cell is one of battery variety that in the middle of all batteries, energy density is the highest, and its energy density is the twice of the zinc-air cell of same size, close to the energy density of gasoline.But in aluminum-air cell storage process, if electrode directly contacts electrolyte, then generating electrodes can corrode, affect performance and the useful life of aluminum-air cell.In order to address this problem, aluminum-air cell electrode separates with electrolyte to be deposited, and is disposed in aluminum-air cell by electrolyte during use again.Even in aluminum-air cell, installation pump Systematical control electrolyte flows into aluminum-air cell speed, and make aluminum-air cell structure very complicated, volume is relatively large, and reduces the energy density of aluminum-air cell.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of novel aluminum-air cell preventing electrode corrosion, solve aluminum-air cell easily by electrolytic corrosion, affect the technical problem of the performance and used life of aluminum-air cell, avoid aluminum-air cell and electrolyte to separate simultaneously and deposit the shortcomings such as brought aluminum-air cell complex structure, volume are comparatively large, energy density reduction.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of novel aluminum-air cell preventing electrode corrosion, comprises negative pole, positive pole, electrolyte, battery container, corrosion barrier.
Described negative pole comprises negative pole core body, and described negative pole core body is coated with zinc coat, and the outer surface of negative pole core body is close to by described zinc coat.Negative pole core body is made up of highly purified metallic aluminium.Described negative pole and positive pole are located in battery container, and the electrolyte be stored in battery container directly contacts negative pole and positive pole.
Described corrosion barrier electrical connection negative pole.Corrosion barrier comprises and suppresses part core body and corrosion inhibiting material layer.
Described corrosion inhibiting material layer coated suppression part core body, corrosion inhibiting material layer is located at negative pole adjacent position or and cathode contact.Described suppression part core body electrical connection negative pole, suppresses the standard electrode potential of part core body to be greater than the standard electrode potential of zinc coat, zinc coat and negative pole can be suppressed by electrolytic corrosion.
In aluminum-air cell storage process, corrosion barrier suppresses the chemical reaction between negative pole and electrolyte.Specifically, corrosion inhibiting material layer suppresses the chemical reaction between zinc coat and electrolyte, thus makes zinc coat and corrosion barrier jointly protect negative pole core body from the corrosion of electrolyte in aluminum-air cell storage process.In aluminum-air cell discharge process, zinc coat decomposes on negative pole core body, exposes negative pole core body, forms aluminum-air cell discharge with electrolyte generation chemical reaction.
As preferably, corrosion barrier is made up of many strip metals silk screen, and described woven wire surface is coated with the corrosion inhibiting material layer of 0.025 μm ~ 0.125 μm.
As preferably, part core body is suppressed to contain copper, gold, palladium, platinum, cobalt, one or more metallic elements of nickel.
As preferably, corrosion inhibiting material layer contains indium, gallium, lead, thallium, one or more metallic elements of mercury.
The utility model structure is simple, inhibits electrolyte between the aluminum-air cell storage life to the corrosion of electrode, to avoid aluminum-air cell and separate with electrolyte the shortcoming deposited.
Accompanying drawing explanation
Fig. 1 is a kind of novel structural representation preventing the aluminum-air cell of electrode corrosion
Wherein: 300, negative pole, 302, negative pole core body, 304, zinc coat, 312, the outer surface of negative pole core body, 702, battery container, 704, electrolyte, 706, positive pole, 800, aluminum-air cell, 802, corrosion barrier, 804, suppress part core body, 806, corrosion inhibiting material layer.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
The novel aluminum-air cell preventing electrode corrosion, comprises negative pole 300, positive pole 702, electrolyte 704, battery container 702, corrosion barrier 802.
Described negative pole 300 comprises negative pole core body 302, and described negative pole core body 302 is coated with zinc coat 304, and the outer surface 312 of negative pole core body is close to by described zinc coat 304.Described negative pole core body 302 is made up of highly purified metallic aluminium.Described negative pole 300 is located in battery container 702 with positive pole 706, is stored in electrolyte 704 directly contact negative pole 300 and the positive pole 706 in battery container 702.
Described corrosion barrier 802 is electrically connected negative pole 300.Corrosion barrier 802 comprises and suppresses part core body 804 and corrosion inhibiting material layer 806.
Described corrosion inhibiting material layer 806 coated suppression part core body 804 is also located at negative pole 300 adjacent position.Described suppression part core body 804 is electrically connected negative pole 300, suppresses the standard electrode potential of part core body 804 to be greater than the standard electrode potential of zinc coat 304, zinc coat 304 and negative pole 300 can be suppressed to be corroded by electrolyte 704.
In aluminum-air cell 800 storage process, corrosion barrier 802 suppresses the chemical reaction between negative pole 300 and electrolyte 704.Specifically, corrosion inhibiting material layer 806 suppresses the chemical reaction between zinc coat 304 and electrolyte 704, thus makes zinc coat 304 and corrosion barrier 802 jointly protect negative pole core body 302 from the corrosion of electrolyte 704.In aluminum-air cell 800 discharge process, zinc coat 304 decomposes on negative pole core body 302, exposes negative pole core body 302, with electrolyte 704, chemical reaction occurs and forms aluminum-air cell 800 and discharge.
In concrete enforcement, corrosion barrier 802 is made up of many strip metals silk screen, and described woven wire surface is coated with the corrosion inhibiting material layer 806 of 0.125 μm.
In concrete enforcement, suppress part core body 804 containing copper, gold, palladium, platinum, cobalt, one or more metallic elements of nickel.
In concrete enforcement, corrosion inhibiting material layer 806 is containing indium, gallium, lead, thallium, one or more metallic elements of mercury.
Claims (2)
1. the novel aluminum-air cell preventing electrode corrosion, it is characterized in that comprising negative pole, positive pole, electrolyte, battery container, corrosion barrier, described negative pole comprises negative pole core body, described negative pole core body is coated with zinc coat, the outer surface of negative pole core body is close to by described zinc coat, described negative pole and positive pole are located in battery container, the electrolyte be stored in battery container directly contacts negative pole and positive pole, corrosion barrier comprises the electrical connection suppression part core body of negative pole and the corrosion inhibiting material layer of coated suppression part core body, corrosion inhibiting material layer be located at negative pole adjacent position or and cathode contact, suppress the chemical reaction between zinc coat and electrolyte.
2. a kind of novel aluminum-air cell preventing electrode corrosion according to claim 1, is characterized in that described corrosion barrier is made up of many strip metals silk screen, and described woven wire surface is coated with the corrosion inhibiting material layer of 0.025 μm ~ 0.125 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520024893.3U CN204481093U (en) | 2015-01-14 | 2015-01-14 | A kind of novel aluminum-air cell preventing electrode corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520024893.3U CN204481093U (en) | 2015-01-14 | 2015-01-14 | A kind of novel aluminum-air cell preventing electrode corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204481093U true CN204481093U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520024893.3U Expired - Fee Related CN204481093U (en) | 2015-01-14 | 2015-01-14 | A kind of novel aluminum-air cell preventing electrode corrosion |
Country Status (1)
| Country | Link |
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| CN (1) | CN204481093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611817A (en) * | 2021-08-02 | 2021-11-05 | 北京理工大学 | Preparation method of immersed aluminum-air battery with negative electrode recovery device |
-
2015
- 2015-01-14 CN CN201520024893.3U patent/CN204481093U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611817A (en) * | 2021-08-02 | 2021-11-05 | 北京理工大学 | Preparation method of immersed aluminum-air battery with negative electrode recovery device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20160114 |