Patent ID: 9478820
Filing Date: 2016-10-25
CPC Classification: C02F,H01M,Y02E

Claim Text:
1. A bacterial fuel cell comprising: at least one anode and at least two cathodes in liquid communication with a liquid to be treated, said at least one anode being separated from said at least two cathodes by at least first and second electrically insulating, water-side spacers and said at least one anode and said at least two cathodes being electrically connected across an external load; and said at least one anode and said at least two cathodes being wound together generally in a spiral configuration together with at least a third, air side spacer providing a separation between adjacent layers of the spiral, a layer of the spiral being defined by at least one anode and its flanking cathodes, wherein the air-side spacer has a thickness to permit airflow passageway between layers of the spiral; and the water side spacers define a separation between the anode and flanking cathodes through which the liquid to be treated flows; and wherein sealing is provided between said at least two cathodes, whereby said at least one anode is enclosed inside an enclosure including said sealing and said at least two cathodes.