CN105810983B - Device for researching influence of cathode-anode distance and anode area of microbial fuel cell on cell performance and application - Google Patents
Device for researching influence of cathode-anode distance and anode area of microbial fuel cell on cell performance and application Download PDFInfo
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- CN105810983B CN105810983B CN201610248775.XA CN201610248775A CN105810983B CN 105810983 B CN105810983 B CN 105810983B CN 201610248775 A CN201610248775 A CN 201610248775A CN 105810983 B CN105810983 B CN 105810983B
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- anode
- fuel cell
- microbial fuel
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- 239000000446 fuel Substances 0.000 title claims abstract description 45
- 230000000813 microbial effect Effects 0.000 title claims abstract description 43
- 230000000712 assembly Effects 0.000 claims abstract description 3
- 238000000429 assembly Methods 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 7
- 241000894006 Bacteria Species 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 230000002906 microbiologic effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/16—Biochemical fuel cells, i.e. cells in which microorganisms function as catalysts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04537—Electric variables
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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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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Inert Electrodes (AREA)
Abstract
The invention discloses a device for researching the influence of the anode and cathode spacing and the anode area of a microbial fuel cell on the cell performance, which at least comprises two assemblies connected in parallel, wherein each assembly comprises a bottom plate and anode blocks longitudinally arranged on the bottom plate at equal intervals, each anode block is correspondingly connected with a lead, and the anode blocks and the cathode of the microbial fuel cell form a current loop through the leads. The invention also discloses the application of the device in a single-chamber microbial fuel cell. The device avoids the complicated steps of repeatedly building the microbial fuel cell, can research the influence of different distances between the positive electrode and the negative electrode and the area of the positive electrode on the electricity generation performance of the microbial fuel cell in the same microbial fuel cell, and greatly reduces the complexity of operation on the basis of verifying the research accuracy; the device has the advantages of convenient operation, easy mastering and control and the like, and has universal adaptability to single-chamber microbial fuel cells.
Description
Technical Field
The invention relates to a device for researching the influence of the distance between the anode and the cathode and the area of the anode of a microbial fuel cell on the performance of the cell, and also relates to the application of the device, and belongs to the field of electrochemistry.
Background
Fossil fuels have supported industrial and economic development over the past century, however, there is no doubt that with human progress and development, the demand for energy is becoming more intense and fossil fuels have had to sustain the economy of the whole world. In the search for energy, scientists have looked at microorganisms. A Microbial Fuel Cell (MFC) is a device which directly converts chemical energy into electric energy by using microbes as an anode catalyst. The biomass energy is converted into electric energy by a biochemical conversion technology in a biomass energy utilization technology, and the biomass energy is used as a new green energy utilization mode and has the advantages of wide raw materials, mild reaction conditions, cleanness, high efficiency and the like.
At present, the power generation power of the MFC is low, so that the research on the influence factors of the power generation performance of the MFC has guiding significance on the practical application of the MFC. The most studied factors influencing the power generation performance of the MFC are the anode-cathode spacing and the anode-cathode area, and the optimal anode-cathode spacing and the optimal anode-cathode area are different for different microbial fuel cells, so that the research needs to be carried out to determine the optimal anode-cathode spacing and the optimal anode-cathode area. Therefore, there is a need for developing a device for studying the influence of the cathode-anode distance and the anode area of the microbial fuel cell on the performance of the cell.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the technical problem of providing a device for researching the influence of the cathode-anode distance and the anode area of a microbial fuel cell on the performance of the cell, and the device has the advantages of convenience in operation, easiness in mastering and control on the basis of verifying the research accuracy.
The invention also aims to solve the technical problem of providing the application of the device for researching the influence of the anode-cathode spacing and the anode area of the microbial fuel cell on the cell performance in the single-chamber microbial fuel cell, wherein the device has universal adaptability to the single-chamber microbial fuel cell.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a device for studying microbiological fuel cell negative and positive pole interval and positive pole area influence to battery performance, includes two parallelly connected subassemblies at least, every the subassembly includes that bottom plate and vertical equidistance set up the anode block on the bottom plate, and every anode block corresponds and connects a wire, the anode block passes through the wire and forms current loop with microbiological fuel cell negative pole.
Wherein the components are connected in parallel by connecting corresponding wires of equal length.
Wherein the anode block is a graphite felt, a carbon cloth or a graphite block.
Wherein the length of the anode block is 20mm, the width of the anode block is 20mm,
wherein the distance between the adjacent anode blocks is 5 mm.
The bottom plate is a stainless steel plate, the length of the bottom plate is 120mm, and the width of the bottom plate is 30 mm.
Wherein, the lead is a stainless steel lead or a titanium lead.
And sealing and insulating the joint of the anode block and the lead.
The device for researching the influence of the cathode-anode distance and the anode area of the microbial fuel cell on the cell performance is applied to the single-chamber microbial fuel cell.
Has the advantages that: aiming at the problem that the existing method for researching the influence of the cathode-anode spacing and the anode area of the microbial fuel cell on the cell performance needs to repeatedly build a microbial fuel cell device, the device avoids the complicated step of repeatedly building the microbial fuel cell, the influence of different cathode-anode spacing and anode area on the electricity generation performance of the microbial fuel cell can be researched in the same microbial fuel cell, and the operation complexity is greatly reduced on the basis of verifying the research accuracy; the device has the advantages of convenient operation, easy mastering and control and the like, and has universal adaptability to single-chamber microbial fuel cells.
Drawings
FIG. 1 is a schematic diagram of the structure of the components of the apparatus of the present invention;
FIG. 2 is a schematic diagram of the structure of the apparatus of the present invention after two modules are connected in parallel.
Detailed Description
The technical solutions of the present invention are further described below with reference to the accompanying drawings, but the scope of the claimed invention is not limited thereto.
As shown in figures 1-2, the device for researching the influence of the cathode-anode spacing and the anode area of the microbial fuel cell on the cell performance at least comprises two assemblies 4 connected in parallel, each assembly 4 comprises a rectangular stainless steel bottom plate 2 and anode blocks 3 longitudinally arranged on the bottom plate 2 at equal intervals, each anode block 3 is correspondingly connected with a lead 1, each anode block 3 is fixedly adhered to the bottom plate 2 through glue, holes are formed in the bottom plate 2, the positions of the holes in the bottom plate 2 correspond to the positions of the center points of the anode blocks 3, the leads 1 penetrate through the center points of the anode blocks 3 and the holes in the bottom plate 2, and the anode blocks 3 and the cathode of the microbial fuel cell form a current loop through the leads 1.
The anode blocks 3 are graphite felt, carbon cloth or graphite blocks, the specifications of the anode blocks 3 are consistent, the anode blocks are small blocks with the length of 20mm and the width of 20mm, and the distance between the adjacent anode blocks 3 on the bottom plate 2 is 5mm, so that the anode block 3 positioned at the uppermost end of the bottom plate 2 is shortest in a lead 1 correspondingly connected to a cathode, and the anode block 3 positioned at the lowermost end of the bottom plate 2 is longest in a lead 1 correspondingly connected to the cathode; the length of the bottom plate 2 is 120mm, and the width is 30 mm; the lead 1 is a stainless steel lead or a titanium lead, and the joint of the anode block 3 and the lead 1 is subjected to sealing and insulating treatment.
The device is used as an anode and inserted into a single-chamber microbial fuel cell, so that electricity-generating microbes can be attached to an anode block 3, and a lead 1 penetrating through the anode block 3 is connected with a cathode, so that the anode block 3 and the cathode of the microbial fuel cell form a current loop through the lead 1; the electrogenic bacteria consume nutrients and produce protons and electrons which are transferred to the anode block 3 and to the cathode via the lead 1. If the distance between the cathode and the anode is changed, the cathode can be connected with the lead 1 corresponding to the anode blocks 3 at different positions (which are arranged in sequence from bottom to bottom in the longitudinal direction) by changing the distance between the cathode and the anode; if the area of the anode is to be changed, a plurality of modules 4 may be connected in parallel, corresponding wires 1 of equal length in each module 4 may be connected, and then the connected wires 1 may be connected to the cathode.
The device can change the distance between the cathode and the anode only by adjusting the leads with different lengths to be connected with the cathode, can change the area of the anode by connecting a plurality of components in parallel, and compares the sizes of the generated voltage or current of the microbial fuel cell in different wiring modes so as to obtain the optimal distance between the cathode and the anode of the microbial fuel cell and the area of the anode. The device can greatly reduce the experimental workload without repeatedly building a microbial fuel cell device, and the whole research process is completed in the same microbial fuel cell, so that the complexity of operation is greatly reduced on the basis of verifying the research accuracy; in addition, the method has very obvious practical significance for realizing the recycling of energy and the maximum utilization of resources.
The smaller the distance between the cathode and the anode of the microbial fuel cell is, the smaller the internal resistance is, which is beneficial to the improvement of the electricity generation performance, but for the air cathode microbial fuel cell, the smaller the distance between the cathode and the anode is, oxygen is easy to permeate into the anode, and the activity of the electricity generation bacteria is influenced, thereby the electricity generation performance is influenced. The larger the area of the anode is, the more the amount of microorganisms attached to the anode is, and the more protons and electrons generated by organic matters consumed by the electricity generating bacteria are, which is beneficial to the electricity generation of the microbial fuel cell.
It should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious variations or modifications which fall within the spirit of the invention are intended to be covered by the scope of the present invention.
Claims (5)
1. A device for studying the influence of the cathode-anode distance and the anode area of a microbial fuel cell on the performance of the cell is characterized in that: the device comprises at least two assemblies which are connected in parallel, wherein each assembly comprises a bottom plate and anode blocks which are longitudinally arranged on the bottom plate at equal intervals, each anode block is correspondingly connected with a lead, and the anode blocks and the cathode of the microbial fuel cell form a current loop through the leads; the adjacent anode blocks on the bottom plate are arranged at equal intervals, the anode block positioned at the uppermost end of the bottom plate is correspondingly connected with the shortest lead of the cathode, and the anode block positioned at the lowermost end of the bottom plate is correspondingly connected with the longest lead of the cathode; the components are connected in parallel by connecting corresponding wires with equal length; the distance between the adjacent anode blocks is 5 mm; the bottom plate is a stainless steel plate, the length of the bottom plate is 120mm, and the width of the bottom plate is 30 mm; and sealing and insulating the joint of the anode block and the lead.
2. The apparatus of claim 1, wherein the apparatus comprises a means for studying the effect of the anode-cathode spacing and the anode area on the performance of the microbial fuel cell, and the means comprises: the anode block is a graphite felt, a carbon cloth or a graphite block.
3. The apparatus of claim 1, wherein the apparatus comprises a means for studying the effect of the anode-cathode spacing and the anode area on the performance of the microbial fuel cell, and the means comprises: the length of the anode block is 20mm, and the width of the anode block is 20 mm.
4. The apparatus of claim 1, wherein the apparatus comprises a means for studying the effect of the anode-cathode spacing and the anode area on the performance of the microbial fuel cell, and the means comprises: the lead is a stainless steel lead or a titanium lead.
5. The use of the device for studying the effect of the interpolar distance and the anode area of a microbial fuel cell on the performance of the cell as set forth in claim 1 in a single-cell microbial fuel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248775.XA CN105810983B (en) | 2016-04-20 | 2016-04-20 | Device for researching influence of cathode-anode distance and anode area of microbial fuel cell on cell performance and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248775.XA CN105810983B (en) | 2016-04-20 | 2016-04-20 | Device for researching influence of cathode-anode distance and anode area of microbial fuel cell on cell performance and application |
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| Publication Number | Publication Date |
|---|---|
| CN105810983A CN105810983A (en) | 2016-07-27 |
| CN105810983B true CN105810983B (en) | 2020-04-24 |
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| CN201610248775.XA Expired - Fee Related CN105810983B (en) | 2016-04-20 | 2016-04-20 | Device for researching influence of cathode-anode distance and anode area of microbial fuel cell on cell performance and application |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326053A (en) * | 2013-05-23 | 2013-09-25 | 中国农业大学 | Multi-electrode microbial fuel cell system for researching microbial electrochemistry |
| CN105390716A (en) * | 2015-10-28 | 2016-03-09 | 同济大学 | Overlapped microbial fuel cell in-situ test system and application thereof |
-
2016
- 2016-04-20 CN CN201610248775.XA patent/CN105810983B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326053A (en) * | 2013-05-23 | 2013-09-25 | 中国农业大学 | Multi-electrode microbial fuel cell system for researching microbial electrochemistry |
| CN105390716A (en) * | 2015-10-28 | 2016-03-09 | 同济大学 | Overlapped microbial fuel cell in-situ test system and application thereof |
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| Publication number | Publication date |
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| CN105810983A (en) | 2016-07-27 |
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Granted publication date: 20200424 |