US 12,261,336 B2
Microbial fuel cell using electron absorber having high reduction potential, and method of generating electric energy using same
Yong Hak Park, Seoul (KR); and Chan Soo Choi, Seoul (KR)
Assigned to Yong Hak Park, Seoul (KR)
Appl. No. 17/769,382
Filed by Yong Hak Park, Seoul (KR)
PCT Filed Oct. 13, 2020, PCT No. PCT/KR2020/013913
§ 371(c)(1), (2) Date Apr. 15, 2022,
PCT Pub. No. WO2021/075816, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 10-2019-0127717 (KR), filed on Oct. 15, 2019.
Prior Publication US 2024/0136560 A1, Apr. 25, 2024
Prior Publication US 2024/0234778 A9, Jul. 11, 2024
Int. Cl. H01M 8/16 (2006.01); C25B 1/04 (2021.01); C25B 11/061 (2021.01); C25B 11/077 (2021.01); H01M 4/86 (2006.01); H01M 4/96 (2006.01); H01M 8/0289 (2016.01); H01M 8/24 (2016.01)
CPC H01M 8/16 (2013.01) [C25B 1/04 (2013.01); C25B 11/061 (2021.01); C25B 11/077 (2021.01); H01M 4/96 (2013.01); H01M 8/0289 (2013.01); H01M 8/2459 (2016.02); H01M 2004/8684 (2013.01); H01M 2004/8689 (2013.01); H01M 2300/0028 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A microbial fuel cell comprising an anode chamber, a cathode chamber, a separation membrane positioned between the anode chamber and the cathode chamber, and an electrolysis cell,
wherein the anode chamber comprises an anode on which a microbial film is formed on the surface and an organic solution that is an electron donor as a negolyte, and the organic solution is continuously supplied to the anode chamber,
the cathode chamber comprises a cathode which is a conductor electrode on which a microbial film is not formed on the surface, and an electron absorber solution as a posolyte,
the electrolysis cell comprises a cathode and an anode to which power is applied, and the reduced posolyte transferred from the cathode chamber,
the reduced posolyte transferred from the cathode chamber is regenerated through electrolysis using external power, and the regenerated posolyte is supplied back to the cathode chamber,
hydrogen gas generated in the cathode chamber due to the electrolysis performed in the electrolysis cell is discharged to the outside of the electrolysis cell and
the separation membrane is provided with one or more O-rings that can prevent leakage.