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Microbial fuel cell using electron acceptor having high reduction potential and method for producing electrical energy using same

A technology of fuel cells and microorganisms, applied in biochemical fuel cells, fuel cells, battery electrodes, etc., to achieve the effects of increasing life, low reduction potential, and preventing leakage

Pending Publication Date: 2022-07-15
朴容鹤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the reduction of oxygen occurs at a very slow rate at the surface of the carbon electrode, resulting in high overvoltage, which is one of the limiting factors in high current density MFCs (Gil, G.C.; Chang, I.S.; Kim, B.H.; Kim, M.; Jang, J.K.; Park, H.S.; Kim, H.J. Operational parameters affecting the performannce of a mediator-less microbial fuel cell. Biosens. Bioelectron. 2003, 18, 327-334.)

Method used

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  • Microbial fuel cell using electron acceptor having high reduction potential and method for producing electrical energy using same
  • Microbial fuel cell using electron acceptor having high reduction potential and method for producing electrical energy using same
  • Microbial fuel cell using electron acceptor having high reduction potential and method for producing electrical energy using same

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Embodiment

[0068] Preparation of MFCs for polarization experiments and discharge experiments ( image 3 )

[0069] To investigate the effect of electron acceptors in MFC performance, a two-chamber microbial fuel cell design with an anode compartment with a working volume of 500 mL and a cathode compartment with a volume of 600 mL was used.

[0070] To test the electrodes, carbon brushes (D 4cm*L 7cm) or carbon felts (W 4cm*H 7cm) were used as anode materials. The carbon brushes used had a diameter of 4cm and a length of 7cm and provided an area of ​​28cm 2 . In addition, a graphite plate (2.5cm*6cm) or a carbon brush was used as the cathode.

[0071] An external circuit resistance of 1000Ω was connected between anode and cathode except during polarization experiments. The anode and cathode were separated with a pretreated ion exchange membrane (AEM, AMI-7001 or CEM, CEM-7001, Membrane International, USA (USA)).

[0072] Anaerobic inoculum was collected from anaerobic sludge previo...

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Abstract

The present invention relates to a microbial fuel cell using an electron acceptor having a high reduction potential and a method for producing electric energy using the same, and more particularly, to a microbial fuel cell in which the electron acceptor has a high reduction potential, and a method for producing electric energy using the same, and a method for producing electric energy using the same, in the present invention, an electron acceptor solution having a high reduction potential is used as a reduction electrolyte, an organic substance solution as an electron donor is used as an oxidation electrolyte, the reduced reduction electrolyte is regenerated by electrolysis in an electrolytic cell and is resupplied as the reduction electrolyte, and a separator provided with one or more O-rings to prevent leakage is included. According to the present invention, hydrogen generated in electrolysis can be supplied to a fuel cell to produce additional electric energy, so that high electric power can be produced at an effective cost, and energy generated from an existing power generation system or electric power generated from a microbial fuel cell, such as solar electric energy, can be used for electrolysis, so that energy utilization can be significantly improved, and energy consumption can be reduced. And the service life of the fuel cell can be prolonged.

Description

technical field [0001] The present invention relates to a microbial fuel cell using an electron acceptor having a high reduction potential and a method for producing electric energy using the microbial fuel cell, more particularly, to a microbial fuel cell as follows and a method for producing electric energy using the microbial fuel cell A method in which, in the microbial fuel cell, an electron acceptor solution with a high reduction potential is used as a reducing electrolyte, an organic matter solution as an electron donor is used as an oxidizing electrolyte, and the reduced reducing electrolyte is regenerated by electrolysis in an electrolytic cell and is supplied again as a reducing electrolyte, and includes a diaphragm provided with more than one O-ring to prevent leakage, the hydrogen gas produced in the electrolysis can be supplied to the fuel cell to produce additional electricity, so that high electricity can be produced at an effective cost, Also, energy generated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/16H01M4/86H01M4/96H01M8/0276
CPCH01M4/8663H01M4/96H01M8/0278H01M8/16Y02E60/50H01M8/1004H01M8/2459C25B11/061C25B11/077C25B1/04H01M8/0289H01M2004/8684H01M2004/8689H01M2300/0028
Inventor 朴容鹤崔燦洙
Owner 朴容鹤
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