摘要:
A microbial fuel cell system (100) includes a supply-drain compartment (6) having a supply port (61) and a drain port (62) of an electrolytic solution (2). The microbial fuel cell system further includes one or more power generation cassettes (10) provided in the supply-drain compartment and each including a microbial fuel cell (1) including: a positive electrode (4) including a first water-repellent layer (41) in contact with a gas phase and a gas diffusion layer (42) attached to the first water-repellent layer; and a negative electrode (3) holding anaerobic microorganisms. The microbial fuel cell system includes one or more purifying cassettes (20) provided in the supply-drain compartment and each including a second water-repellent layer (11) in contact with the gas phase. The power generation cassettes are arranged in the supply-drain compartment on the upstream side in a direction in which the electrolytic solution flows from the supply port toward the drain port, and the purifying cassettes are arranged on the downstream side of the power generation cassettes.
摘要:
A gas diffusion electrode includes: a water-repellent layer (31) which includes a woven fabric or a non-woven fabric, and which has water repellency; a gas diffusion layer (33) which is stacked on the water-repellent layer (31); and a catalyst layer (34) which is disposed opposite the water-repellent layer (31) relative to the gas diffusion layer (33).
摘要:
A gas diffusion electrode includes: a water-repellent layer (31) which includes a woven fabric or a non-woven fabric, and which has water repellency; a gas diffusion layer (33) which is stacked on the water-repellent layer (31); and a catalyst layer (34) which is disposed opposite the water-repellent layer (31) relative to the gas diffusion layer (33).
摘要:
An object of the present invention is to provide a microbial fuel cell, which can simplify a piping configuration for supplying oxidizing gas and secure high utilization efficiency of the oxidizing gas. A microbial fuel cell (1) includes a container unit (20) and an electrode unit (30). The container unit (20) includes an electrolytic cell (22) and a communication port (23). The electrode unit (30) includes a gas-phase chamber (32), a positive electrode (33), a negative electrode (34) that is configured to hold microbes, an ion transfer layer (35) that is interposed between the positive electrode (33) and the negative electrode (34), a first vent port (36), and a second vent port (37). The gas-phase chamber (32) is communicated with the communication port (23) through the second vent port (37).
摘要:
A fuel cell system (100) includes: a plurality of cell units, including a first cell unit (10A) and a second cell unit (10B) located below the first cell unit (10A) along the vertical direction; and at least one connecting section including a first connecting section (20A) to connect the first cell unit (10A) and the second cell unit (10B). The plurality of cell units each include: a treatment bath (3) having a flow path (8) through which a liquid to be treated is allowed to flow; a liquid intake port (11A, 11B) through which the liquid to be treated is supplied to the flow path (8) and a liquid discharge port (13A, 13B) through which the liquid to be treated is discharged from the flow path (8); and at least one electrode cell (2), the at least one electrode cell (2) including a negative electrode (6), a positive electrode (5) at least a portion of which is a porous body, and an ion-permeable membrane (7) disposed between the positive electrode (5) and the negative electrode (6), the ion-permeable membrane (7) being electrically non-conductive. The at least one electrode cell (2) is disposed so that the negative electrode (6) is in contact with the liquid to be treated flowing through the flow path (8), and that the positive electrode (5) is exposed to a gas phase. The first connecting section (20A) includes: a connection path (9) through which the liquid to be treated having been discharged from the liquid discharge port (13A, 13B) of the first cell unit (10A) is allowed to flow to the liquid intake port (11A, 11B) of the second cell unit (11B); and a pneumatic adjustment section to suppress pneumatic fluctuations within the connection path (9) that are associated with movements of the liquid to be treated.