CN103187598B - Electrical energy generation device and cathode thereof - Google Patents
Electrical energy generation device and cathode thereof Download PDFInfo
- Publication number
- CN103187598B CN103187598B CN201110454271.0A CN201110454271A CN103187598B CN 103187598 B CN103187598 B CN 103187598B CN 201110454271 A CN201110454271 A CN 201110454271A CN 103187598 B CN103187598 B CN 103187598B
- Authority
- CN
- China
- Prior art keywords
- generation device
- energy generation
- layer
- electric energy
- wrapping net
- 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.)
- Active
Links
Classifications
-
- 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 provides an electrical energy generation device and a cathode thereof. The electrical energy generation device comprises an accommodation tank, an anode, and a cathode. The accommodation tank is used for receiving an electrolyte. The anode is arranged in the accommodation tank. The cathode comprises a body and a coating net arranged on the body. The coating net comprises a plurality of grids. According to the invention, the body is coated by using the coating net, such that the body is prevented from falling and being corroded, cathode service life can be prolonged, and durability of the electrical energy generation device can be improved. According to the invention, the cathode of the electrical energy generation device comprises the body and the coating net with a plurality of grids coated on the body. With the coating net, reaction area and rate of the body and the electrolyte are reduced, such that cathode durability is improved.
Description
Technical field
The present invention relates to a kind of electric energy generation device and electrode thereof, particularly relate to a kind of electric energy generation device and negative electrode thereof of long service life.
Background technology
Consulting Fig. 1, Fig. 2, is an existing zinc-air cell, comprises a zinc anode plate 11, one and the air cathode plate 12 at this zinc anode plate 11 interval, and one is distributed in electrolyte 13 between this zinc anode plate 11 and air cathode plate 12.
This air cathode plate 12 comprises the air-permeable layer 122, that a current collection net 121, is located at this current collection net 121 side and is located at this current collection net 121 opposite side and the catalyst layer 123 contacted with this electrolyte 13, and two are located between this air-permeable layer 122 and this current collection net 121 respectively, and the diffusion layer 124 between this current collection net 121 and this catalyst layer 123.
Air when the external world sequentially enters this diffusion layer 124, current collection net 121, diffusion layer 124, catalyst layer 123 by this air-permeable layer 122 as shown by arrows, oxygen molecule in air fully can be reacted in electrolyte 13, and coordinate zinc anode plate 11, electrolyte 13 produces electrochemical reaction, so can be electrically connected at this zinc anode plate 11, air cathode plate 12 generation that a load (not shown) just has electric current respectively.
But, because this air cathode plate 12 must be soaked in acid/alkaline electrolyte 13 for a long time, the whole surface of this catalyst layer 123 is subject to the continuous erosion of electrolyte 13 and reduces gradually as shown in Figure 2, finally cause diffusion layer 124 stacking outside this current collection net 121, catalyst layer 123 peels off, electrochemical reaction cannot be carried out, have a strong impact on the discharging efficiency of this zinc-air cell.
Summary of the invention
The object of the present invention is to provide a kind of electric energy generation device increased the service life.
Electric energy generation device of the present invention, comprises a storage tank, an anode and a negative electrode.
This storage tank is used for depositing electrolyte, and this anode is provided in this storage tank, and this negative electrode and this anode compartment of terrain are located in this storage tank, this negative electrode comprises a body, and a Wrapping net be located on this body, this Wrapping net is dipped in this electrolyte, and have several grid.
The object of the invention and solve its technical problem and also can be applied to the following technical measures to achieve further.
Preferably, aforesaid electric energy generation device, wherein the body of this negative electrode comprises a current collection layer, air-permeable layer being located at this current collection layer side, a catalyst layer being located at this current collection layer opposite side, and two diffusion layers, described diffusion layer is located between this air-permeable layer and current collection layer respectively, and between this current collection layer and this catalyst layer, this Wrapping net is coated on outside this air-permeable layer and catalyst layer.
Preferably, aforesaid electric energy generation device, wherein the body of this negative electrode comprises a current collection layer, air-permeable layer being located at this current collection layer side, a catalyst layer being located at this current collection layer opposite side, and two diffusion layers, described diffusion layer is located between this air-permeable layer and current collection layer respectively, and between this current collection layer and this catalyst layer, this Wrapping net is coated on this catalyst layer.
Preferably, aforesaid electric energy generation device, wherein this Wrapping net is shielded in the area of this catalyst layer is be not more than the area that this catalyst layer and this electrolyte react 25%.
Preferably, aforesaid electric energy generation device, wherein this Wrapping net is shielded in the area of this body is be not more than the area that this body and this electrolyte react 25%.
Preferably, aforesaid electric energy generation device, wherein the material of this Wrapping net is selected from silicon dioxide, carborundum compound or silicon nitride compound, and make with sedimentation.
Preferably, aforesaid electric energy generation device, wherein the grid of this Wrapping net is quadrangle or honeycomb.
Moreover another object of the present invention, is to provide a kind of negative electrode of incrust, electric energy generation device that service time is long.
The negative electrode of electric energy generation device of the present invention, this electric energy generation device comprises one for carrying out the electrolyte of electrochemical reaction, and this negative electrode comprises a body, and a Wrapping net.This Wrapping net to be coated on this body and to have several grid, and this Wrapping net is dipped in this electrolyte, but does not produce electrochemical reaction with the electrolyte of this electric energy generation device.
Preferably, the negative electrode of aforesaid electric energy generation device, wherein the material of this Wrapping net is selected from silicon dioxide, carborundum compound or silicon nitride compound, and make with sedimentation.
Preferably, the negative electrode of aforesaid electric energy generation device, wherein this Wrapping net is shielded in the area of this body is be not more than the area that this body and this electrolyte react 25%.
Beneficial effect of the present invention is: by this Wrapping net by coated for this body, make this body incrust, be etched, the useful life of this negative electrode can be extended, promote the durability of electric energy generation device.
Accompanying drawing explanation
Fig. 1 is a schematic diagram, and an existing zinc-air cell is described;
Fig. 2 is a schematic diagram, the aspect that in key diagram 1, an air cathode plate of this zinc-air cell is etched;
Fig. 3 is a cutaway view, and the first preferred embodiment of electric energy generation device of the present invention is described;
Fig. 4 is a schematic perspective view, and the aspect of a negative electrode of this first preferred embodiment is described;
Fig. 5 is a cutaway view, and the aspect that this negative electrode suffers erosion is described;
Fig. 6 is a schematic diagram, and the another kind of aspect of a Wrapping net of this first preferred embodiment is described;
Fig. 7 is a schematic diagram, and the another kind of aspect of a Wrapping net of this first preferred embodiment is described;
Fig. 8 is a datagram, and what more existing metal-air cell and this first preferred embodiment were described opens loop voltage variation diagram;
Fig. 9 is a datagram, and the electric current and voltage performance chart of more existing metal-air cell and this first preferred embodiment is described;
Figure 10 is a datagram, and the change in voltage figure determining electric current 100mA discharge test of more existing metal-air cell and this first preferred embodiment is described;
Figure 11 is a datagram, and the change in voltage figure determining electric current 300mA discharge test of more existing metal-air cell and this first preferred embodiment is described;
Figure 12 is a schematic diagram, and the second preferred embodiment of electric energy generation device of the present invention is described.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Before the present invention is described in detail, it should be noted that in the following description content, similar element represents with identical numbering.
Consulting Fig. 3 and Fig. 4, is the first preferred embodiment of electric energy generation device 2 of the present invention, comprises one and to be located at anode 4 in this storage tank 3 for the storage tank 3, depositing electrolyte 31, and one and this anode 4 compartment of terrain be located at negative electrode 5 in this storage tank 3.
In this preferred embodiment, be explain with metal-air cell, this negative electrode 5 comprises a body 50, and one is located at Wrapping net 6 on this body 50.The body 50 of this negative electrode 5 comprises the catalyst layer 53 that air-permeable layer 52, that a current collection layer 51, is located at this current collection layer 51 side is located at this current collection layer 51 opposite side, and two diffusion layers 54, described diffusion layer 54 is located between this air-permeable layer 52 and current collection layer 51 respectively, and between this current collection layer 51 and this catalyst layer 53.
In addition, this Wrapping net 6 is dipped in this electrolyte 31, and there is several grid 61, and be coated on this air-permeable layer 52 with outside catalyst layer 53, in the present embodiment, the material of this Wrapping net 6 to produce the silicon dioxide of electrochemical reaction with this electrolyte 31 and to make with sedimentation, but also can be as carborundum compound or silicon nitride compound deposition form.Preferably, the area that this Wrapping net 6 is shielded in this catalyst layer 53 is be not more than the area that catalyst layer 53 reacts with electrolyte 31 25%, in order to avoid the area affecting catalyst layer 53 is affected the reaction with electrolyte 31 by excessively covering, and this catalyst layer 53 can be subject to the restriction of this Wrapping net 6, can not peel off and can increase the service life by full wafer, in addition, the grid 61 of this Wrapping net 6 except being except quadrangle as shown in Figure 4, also can be as shown in Figure 6 in honeycomb or as shown in Figure 7 be in paliform.And at example as shown in Figure 4, this Wrapping net 6 is the outer surfaces being coated on whole body 50, certainly according to manufacture, this Wrapping net 6 also can be the aspect in this catalyst layer 53 coated up and down.
Use is utilize this catalyst layer 53 to contact with this electrolyte 31 equally, this air-permeable layer 52 is allowed to contact with extraneous air, now extraneous air will pass through this air-permeable layer 52, diffusion layer 54, current collection layer 51, diffusion layer 54 as shown by arrows to this catalyst layer 53, and the oxygen in outside air will infiltrate this catalyst layer 53, and coordinate electrolyte 31, anode 4 will produce electrochemical reaction, so by the generation that a load (not shown) is electrically connected this anode 4 respectively, negative electrode 5 just has electric current, make this load energy start.
Consult Fig. 5, after long-time use, this electrolyte 31 can corrode this catalyst layer 53 gradually, but is subject to the covering of this Wrapping net 6, and Wrapping net 6 does not produce the material of electrochemical reaction with this electrolyte 31, so this catalyst layer 53 only has the local surfaces between the grid 61 of this Wrapping net 6 can start to be etched, therefore the area be etched reduces, and the speed of erosion relatively will be slack-off, in addition, this catalyst layer 53 is subject to the restriction of this Wrapping net 6, can not peel off and cause very fast inefficacy by full wafer.
Consult Fig. 3, through the actual test of inventor, take zine plate as anode 4, potassium hydroxide aqueous solution makes electrolyte 31, concentration is under the condition of 5M, relatively this preferred embodiments and existing metal-air cell, opening loop voltage variation diagram (as Fig. 8), electric current and voltage performance chart (as Fig. 9) can find out that otherness is also little, although represent that this Wrapping net 6 is blinded by the surface area of this catalyst layer 53 of part, but it is very little to the performance impact of metal-air cell, coordinate and consult Figure 10, Figure 11 is the change in voltage figure of discharge test, wherein Figure 10 tests in 100mA constant-current discharge, Figure 11 tests in 300mA constant-current discharge, can be found out by experimental result, in electric discharge this preferred embodiment of initial stage and existing metal-air cell not too large variation difference, but the phase can find that the voltage drop of existing air cathode is obviously greater than this preferred embodiment after discharge, and it is more obvious when larger current is discharged, represent that existing metal-air cell is after the use of a period of time, voltage significantly can decay to zero rapidly, the pressure drop of this preferred embodiment is then relatively slow, the longer time can be used.
Consult Figure 12, for the second preferred embodiment of electric energy generation device 2 of the present invention, roughly the same with the first preferred embodiment, in this preferred embodiment, explain with the aspect of general storage battery (lead acid accumulator), be both and form this Wrapping net 6 on the body 50 of this negative electrode 5, identical effect is had with the first preferred embodiment, the speed that the body 50 that can slow down this negative electrode 5 is corroded by this electrolyte 31, and then extend the useful life of this electric energy generation device 2, preferably, the area that this Wrapping net 6 is shielded in this body 50 is be not more than the area that this body 50 reacts with electrolyte 31 25%.
In sum, electric energy generation device 2 of the present invention is by this Wrapping net 6 this body 50 coated, reduce the body 50 of this negative electrode 5 and the contact area of electrolyte 31, the speed that this negative electrode 5 that can slow down whereby is corroded by this electrolyte 31, and then the useful life extending electric energy generation device 2.
Claims (10)
1. an electric energy generation device, comprises a storage tank, an anode, and a negative electrode, and this storage tank is used for depositing electrolyte, and this anode is located in this storage tank, it is characterized in that:
This negative electrode and this anode compartment of terrain are located in this storage tank, and this negative electrode comprises a body, and a Wrapping net be coated on this body, and this Wrapping net is dipped in this electrolyte, and have several grid.
2. electric energy generation device according to claim 1, it is characterized in that, the body of this negative electrode comprises a current collection layer, air-permeable layer being located at this current collection layer side, a catalyst layer being located at this current collection layer opposite side, and two diffusion layers, described diffusion layer is located between this air-permeable layer and current collection layer respectively, and between this current collection layer and this catalyst layer, this Wrapping net is coated on outside this air-permeable layer and catalyst layer.
3. electric energy generation device according to claim 1, it is characterized in that, the body of this negative electrode comprises a current collection layer, air-permeable layer being located at this current collection layer side, a catalyst layer being located at this current collection layer opposite side, and two diffusion layers, described diffusion layer is located between this air-permeable layer and current collection layer respectively, and between this current collection layer and this catalyst layer, this Wrapping net is coated on this catalyst layer.
4. electric energy generation device according to claim 2, is characterized in that, the area that this Wrapping net is shielded in this catalyst layer is be not more than the area that this catalyst layer and this electrolyte react 25%.
5. electric energy generation device according to claim 1, is characterized in that, the area that this Wrapping net is shielded in this body is be not more than the area that this body and this electrolyte react 25%.
6., according to described electric energy generation device arbitrary in Claims 1-4, it is characterized in that, the material of this Wrapping net is selected from silicon dioxide, carborundum compound or silicon nitride compound, and make with sedimentation.
7., according to described electric energy generation device arbitrary in Claims 1-4, it is characterized in that, the grid of this Wrapping net is quadrangle or honeycomb.
8. a negative electrode for electric energy generation device, this electric energy generation device comprises one for carrying out the electrolyte of electrochemical reaction, it is characterized in that:
This negative electrode comprises a body, and a Wrapping net, and this Wrapping net to be coated on this body and to have several grid, and this Wrapping net is dipped in this electrolyte, but does not produce electrochemical reaction with the electrolyte of this electric energy generation device.
9. the negative electrode of electric energy generation device according to claim 8, is characterized in that: the material of this Wrapping net is selected from silicon dioxide, carborundum compound or silicon nitride compound, and make with sedimentation.
10. the negative electrode of electric energy generation device according to claim 8 or claim 9, is characterized in that: the area that this Wrapping net is shielded in this body is be not more than the area that this body and this electrolyte react 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110454271.0A CN103187598B (en) | 2011-12-30 | 2011-12-30 | Electrical energy generation device and cathode thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110454271.0A CN103187598B (en) | 2011-12-30 | 2011-12-30 | Electrical energy generation device and cathode thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103187598A CN103187598A (en) | 2013-07-03 |
| CN103187598B true CN103187598B (en) | 2015-05-06 |
Family
ID=48678660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110454271.0A Active CN103187598B (en) | 2011-12-30 | 2011-12-30 | Electrical energy generation device and cathode thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103187598B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411768A (en) * | 2018-10-17 | 2019-03-01 | 东莞市中航华讯卫星技术有限公司 | The preparation method of air electrode |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4039729A (en) * | 1974-05-09 | 1977-08-02 | Deutsche Automobilgesellschaft Mbh, Firma | Rechargeable galvanic cell with zinc electrode and auxiliary structure |
| CN1449063A (en) * | 2002-04-04 | 2003-10-15 | 索尼公司 | Betteries |
| CN1624961A (en) * | 2004-11-11 | 2005-06-08 | 南亚塑胶工业股份有限公司 | Air electrode of multi-layer sintering structure and its manufacturing method |
| CN1851968A (en) * | 2005-05-16 | 2006-10-25 | 松下电器产业株式会社 | Direct oxidation-type fuel cell and manufacture method thereof |
-
2011
- 2011-12-30 CN CN201110454271.0A patent/CN103187598B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4039729A (en) * | 1974-05-09 | 1977-08-02 | Deutsche Automobilgesellschaft Mbh, Firma | Rechargeable galvanic cell with zinc electrode and auxiliary structure |
| CN1449063A (en) * | 2002-04-04 | 2003-10-15 | 索尼公司 | Betteries |
| CN1624961A (en) * | 2004-11-11 | 2005-06-08 | 南亚塑胶工业股份有限公司 | Air electrode of multi-layer sintering structure and its manufacturing method |
| CN1851968A (en) * | 2005-05-16 | 2006-10-25 | 松下电器产业株式会社 | Direct oxidation-type fuel cell and manufacture method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103187598A (en) | 2013-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | A novel high energy density rechargeable lithium/air battery | |
| CN109728291A (en) | A kind of high specific energy lithium metal battery | |
| EP3486992B1 (en) | Battery | |
| US20140234726A1 (en) | Lithium Battery with Composite Solid Electrolyte | |
| CN207572477U (en) | Electrode assembly and secondary cell | |
| JP2011511429A (en) | Pasted nickel hydroxide electrode for rechargeable nickel-zinc battery | |
| CN101165964A (en) | Asymmetric secondary air fuel battery | |
| CN103137941B (en) | Electrode for zinc bromine storage battery and zinc bromine storage battery assembled by the same | |
| JP2008160053A (en) | Electric current collector, electrode and electric charge storing device | |
| JP7036125B2 (en) | Lithium-ion secondary battery and its manufacturing method | |
| KR101028657B1 (en) | Lithium powder and silicon oxide double layer anode, method of manufacturing the anode and lithium secondary battery using the anode | |
| Pan et al. | A low-cost portable cotton-based aluminum-air battery with high specific energy | |
| CN103187598B (en) | Electrical energy generation device and cathode thereof | |
| WO2015089208A1 (en) | Cell design for an alkaline battery with channels in electrodes to remove gas | |
| Hu et al. | Lab-size rechargeable metal hydride–air cells | |
| CN108346844B (en) | A kind of metal fuel battery | |
| US20150162620A1 (en) | Air battery and air electrode thereof | |
| KR101835403B1 (en) | Cell combined metal-air cell and fuel cell and long-period driving battery system using the same | |
| JP5557385B2 (en) | Energy storage device with proton as insertion species | |
| CN208706458U (en) | The electrode structure of electrochemical energy storage device | |
| KR20110056803A (en) | Air electrode for metal-air secondary battery, method for preparing the same and metal-air secondary battery | |
| CN108550961A (en) | A kind of air-fuel battery anode electrode film and preparation method thereof, a kind of air-fuel battery | |
| CN219979631U (en) | Novel iron ion energy storage battery | |
| KR20180022745A (en) | Support structure for lithium-air batteries using metal foam and Manufacturing method thereof | |
| CN214706057U (en) | Wearable flexible rechargeable zinc-air battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |