CN105428754A - Metal-air battery - Google Patents
Metal-air battery Download PDFInfo
- Publication number
- CN105428754A CN105428754A CN201510762794.XA CN201510762794A CN105428754A CN 105428754 A CN105428754 A CN 105428754A CN 201510762794 A CN201510762794 A CN 201510762794A CN 105428754 A CN105428754 A CN 105428754A
- Authority
- CN
- China
- Prior art keywords
- metal
- housing
- electrolyte
- air
- positive electrode
- 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.)
- Pending
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Classifications
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- 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
- H01M12/065—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 with plate-like electrodes or stacks of plate-like electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/691—Arrangements or processes for draining liquids from casings; Cleaning battery or cell casings
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Hybrid Cells (AREA)
Abstract
The invention relates to the technical field of chemical battery fuels, in particular to a metal-air battery. The metal-air battery comprises a housing, a metal positive electrode, an air negative electrode and an electrolyte solution cavity, wherein a baffle with a hole in the middle is arranged in the housing and used for dividing the electrolyte solution cavity into an upper electrolyte solution cavity and a lower electrolyte solution cavity; the upper electrolyte solution cavity is formed between the metal positive electrode and the air negative electrode; the metal positive electrode is cylindrical and the lower end of the metal positive electrode is opposite to the hole of the baffle; the air negative electrode surrounds the metal positive electrode, the lower end of the air negative electrode is connected with the baffle, and the outer side of the air negative electrode is connected with an oxygen selective membrane; and a filling hole communicated with the upper electrolyte solution cavity is formed in the top of the housing, a liquid discharge hole with a seal cover is arranged at the bottom, and one end of the seal cover is connected with a metal oxide adsorption strip. According to the metal-air battery, deposits on the surface of the positive electrode are easily removed, an electrolyte solution is easily replaced, the use is convenient, the maintenance period is short, and the redox rate is relatively high.
Description
Technical field
The invention relates to technical field of chemical power, is specifically related to a kind of metal-air cell.
Background technology
In prior art, metal-air cell take active metal as the active material of positive electrode of battery, the active material of cathode being battery with the oxygen in air, and is electrolyte mainly with alkalescence or neutral aqueous solution.Therefore, described metal-air cell can generate corresponding metal hydroxides in discharge process; In addition, described metal-air cell can not long storage time electrolyte, and can only add electrolyte before every use to react in battery, after adding electrolyte, this battery then must disposablely use completely, and use inconvenience, flexibility ratio is low.
Described metal hydroxides comes off from surface of metal electrode with sedimentary form in the electrolytic solution, is settled down to battery bottom.In correlation technique, carry out scavenger precipitation thing by periodic replacement electrolyte.In most cases, because the gap between the anode of metal-air cell and negative electrode is less, if hydroxide comes off from electrode surface not in time, but continue too much to be deposited in below metal anode and air cathode at the sediment grain of electrode surface growth or generation, then as easy as rolling off a logly cause internal short-circuit of battery, affect battery supplying power for outside.This makes the electrolyte of metal-air cell need the maintenance cost of replacing, battery in time to uprise.
Summary of the invention
The object of the invention is avoid above-mentioned weak point of the prior art and provide a kind of metal-air cell, solve existing metal-air cell use inconvenience and remove the electrolyte that causes of inconvenience due to the sediment of surface of metal electrode need to change in time, problem that the maintenance cost of battery is high, and improve the redox rate of metal-air cell further.
The object of the invention is achieved through the following technical solutions:
Provide a kind of metal-air cell, comprise housing, positive electrode cap, negative pole cap, metal anode, air cathode and electrolyte cavities, the upper end of described metal anode is fixed on the top of housing and is directly connected with described positive electrode cap, the upper end of described air cathode is fixed on the top of described housing and is directly connected with negative pole cap, it is characterized in that: the dividing plate being provided with central aperture in described housing, described electrolyte cavities is divided into By Electrolysis sap cavity and lower electrolyte cavities by described dividing plate, and described By Electrolysis sap cavity is between described metal anode and air cathode; Described metal anode is cylindric and lower end is relative with the perforate of described dividing plate; Described air cathode is around described metal anode, and its lower end is connected with described dividing plate; The inner side of described air cathode is connected with hydrogen-storing material layer, and outside is connected with oxygen selective film; The top of described housing is provided with the perfusing hole communicated with described By Electrolysis sap cavity, the bottom of housing is provided with the leakage fluid dram of with closure, one end of described seal cover is removably connected with metal oxide adsorption bar, and described metal oxide adsorption bar is located in described lower electrolyte cavities.
In above-mentioned metal-air cell, the upper portion side wall of described housing is evenly provided with multiple pore, air enters inside battery by pore and participates in cathode reaction.
In above-mentioned metal-air cell, described electrolyte cavities is filled with electrolyte, and described electrolyte comprises methyl difluoroacetate.
In above-mentioned metal-air cell, described metal anode is made up of the one selected from the group be made up of metal Li, AL, Fe.
In above-mentioned metal-air cell, described hydrogen-storing material layer comprises the carbon materials and hydrogen-storing material that store oxygen.
The beneficial effect of the invention:
1, by arranging dividing plate, electrolyte cavities is separated into the lower electrolyte cavities of the By Electrolysis sap cavity and storage electrolyte that participate in electrode reaction and the precipitate metal hydroxides dropped, thus add the storage capacity of electrolyte, improve the stability of metal-air cell, shorten the replacement cycle of electrolyte, reduce the maintenance cost of metal-air cell;
2, by arranging described perfusing hole and leakage fluid dram, being easy to change electrolyte in time, being convenient to the use of metal-air cell;
3, columned metal anode and the medial surface air cathode corresponding with outside metal anode are set, be beneficial to the whereabouts being promoted the precipitate metal hydroxides that metal anode surface produces by the effect of gravity on the one hand, on the other hand by pouring into electrolyte toward perfusing hole, wash away described metal anode surface, remove the precipitate metal hydroxides on metal anode surface further;
4, one end of described seal cover is removably connected with metal oxide adsorption bar, and described metal oxide adsorption bar is used for adsorption precipitation at the metal hydroxides of lower electrolyte cavities, makes the removing of metal hydroxides more thorough;
5, by the arranged outside oxygen selective film at air cathode, contribute to optionally from air, filtering out oxygen thus make the redox reaction speed of metal-air cell be increased to original several times.
The invention.
Accompanying drawing explanation
Accompanying drawing is utilized to be described further innovation and creation, but the embodiment in accompanying drawing does not form any restriction to the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is the structural representation of metal-air cell in the invention preferred embodiment.
Reference numeral:
1-housing; 2-metal anode; 3-air cathode; 4-dividing plate; 5-positive electrode cap; 6-negative pole cap; 7-perfusing hole; 8-leakage fluid dram; 9-metal oxide adsorption bar; 10-hydrogen-storing material layer; 11-oxygen selective film; 12-By Electrolysis sap cavity; Electrolyte cavities under 13-; 14-pore; 15-seal cover.
Embodiment
With the following Examples the invention is further described.
See Fig. 1, the metal-air cell of the invention, comprise housing 1, positive electrode cap 5, negative pole cap 6, metal anode 2, air cathode 3 and electrolyte cavities, the upper end of described metal anode 2 is fixed on the top of housing 1 and is directly connected with described positive electrode cap 5, and the upper end of described air cathode 3 is fixed on the top of described housing 1 and is directly connected with negative pole cap 6.
Be provided with the dividing plate 4 of central aperture in described housing 1, described electrolyte cavities is divided into By Electrolysis sap cavity 12 and lower electrolyte cavities 13 by described dividing plate 4, is wherein interconnected by the perforate in the middle of dividing plate 4 between By Electrolysis sap cavity 12 and lower electrolyte cavities 13.Described By Electrolysis sap cavity 12, between described metal anode 2 and air cathode 3, is the electrode reaction place of metal-air cell.
Described metal anode 2 is cylindric and lower end is relative with the perforate of described dividing plate 4; Described air cathode 3 is around described metal anode 2, and its lower end is connected with described dividing plate 4; The inner side of described air cathode 3 is connected with hydrogen-storing material layer 10, and outside is connected with oxygen selective film 11, and oxygen selective film 11 contributes to optionally from air, filtering out oxygen thus makes the redox reaction speed of metal-air cell be increased to original several times.
The top of described housing 1 is provided with the perfusing hole 7 communicated with described By Electrolysis sap cavity 12, for adding electrolyte; The bottom of described housing 1 is provided with the leakage fluid dram 8 of with closure 15, for discharging the precipitation of hydroxide of waste electrolyte and discharge process generation.Described electrolyte cavities is by perfusing hole 7 filling electrolyte, and wherein said lower electrolyte cavities 13 can store a large amount of electrolyte and precipitate metal hydroxides.Due to the effect of gravity, the precipitate metal hydroxides that metal anode 2 surface produces drops to described lower electrolyte cavities 13 relatively easily, in addition, during by perfusing hole 7 toward electrolyte cavities perfusion electrolyte, the surface of metal anode 2 can be washed away, promote dropping of described metal hydroxides.
Further, one end of described seal cover 15 is removably connected with metal oxide adsorption bar 9, and described metal oxide adsorption bar 9 is located in described lower electrolyte cavities 13.The adsorbable metal hydroxides being deposited in lower electrolyte cavities 13 of described metal oxide adsorption bar 9, when extracting described seal cover 15, metal oxide adsorption bar 9 is pulled out together with seal cover 15.
Further, described electrolyte 13 comprises methyl difluoroacetate.
Further, described hydrogen-storing material layer 10 comprises the carbon materials and hydrogen-storing material that store oxygen.
Further, the upper portion side wall of described housing 1 is evenly provided with multiple pore 14, air enters inside battery by pore 14 and participates in cathode reaction.
Finally should be noted that; above embodiment is only in order to illustrate the technical scheme of the invention; but not the restriction to the invention protection range; although done to explain to the invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical scheme of the invention or equivalent replacement, and not depart from essence and the scope of the invention technical scheme.
Claims (4)
1. a metal-air cell, comprise housing, positive electrode cap, negative pole cap, metal anode, air cathode and electrolyte cavities, the upper end of described metal anode is fixed on the top of housing and is directly connected with described positive electrode cap, the upper end of described air cathode is fixed on the top of described housing and is directly connected with negative pole cap, it is characterized in that: the dividing plate being provided with central aperture in described housing, described electrolyte cavities is divided into By Electrolysis sap cavity and lower electrolyte cavities by described dividing plate, and described By Electrolysis sap cavity is between described metal anode and air cathode; Described metal anode is cylindric and lower end is relative with the perforate of described dividing plate; Described air cathode is around described metal anode, and its lower end is connected with described dividing plate; The inner side of described air cathode is connected with hydrogen-storing material layer, and outside is connected with oxygen selective film; The top of described housing is provided with the perfusing hole communicated with described By Electrolysis sap cavity, and the bottom of housing is provided with the leakage fluid dram of with closure, and one end of described seal cover is connected with metal oxide adsorption bar, and described metal oxide adsorption bar is located in described lower electrolyte cavities.
2. metal-air cell according to claim 1, is characterized in that: described electrolyte cavities is filled with electrolyte, and described electrolyte comprises methyl difluoroacetate.
3. metal-air cell according to claim 1, is characterized in that: described metal anode is made up of the one selected from the group be made up of metal Li, AL, Fe.
4. metal-air cell according to claim 1, is characterized in that: described hydrogen-storing material layer comprises the carbon materials and hydrogen-storing material that store oxygen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762794.XA CN105428754A (en) | 2015-11-10 | 2015-11-10 | Metal-air battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762794.XA CN105428754A (en) | 2015-11-10 | 2015-11-10 | Metal-air battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105428754A true CN105428754A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510762794.XA Pending CN105428754A (en) | 2015-11-10 | 2015-11-10 | Metal-air battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105428754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644348A (en) * | 2021-09-02 | 2021-11-12 | 烟台浩忆生物科技有限公司 | Piston liquid injection type metal-air battery and use method thereof |
| CN113964420A (en) * | 2021-10-25 | 2022-01-21 | 宁静 | Metal-air battery |
-
2015
- 2015-11-10 CN CN201510762794.XA patent/CN105428754A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644348A (en) * | 2021-09-02 | 2021-11-12 | 烟台浩忆生物科技有限公司 | Piston liquid injection type metal-air battery and use method thereof |
| CN113644348B (en) * | 2021-09-02 | 2022-11-11 | 烟台浩忆生物科技有限公司 | Piston liquid injection type metal-air battery and use method thereof |
| CN113964420A (en) * | 2021-10-25 | 2022-01-21 | 宁静 | Metal-air battery |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |
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| WD01 | Invention patent application deemed withdrawn after publication |