RU2561566C1 - Method of insertion of consumable electrode into aluminium-air current power supply - Google Patents

Abstract

FIELD: power industry.

SUBSTANCE: invention relates to power sources, namely to methods of replacement of consumable electrodes in air-aluminium fuel elements without the disconnection of power supply circuits. A consumable electrode in the form of an aluminium wire is used which is winded up on a spiral flute of a thin-walled rod from a dielectric hydrophobic material. One end of the wire is inserted into the cavity of the thin-walled rod through the hole in its lower part. The movement of the consumable electrode is performed by screwing-in of the thin-walled rod into covers of the fuel element housing located from two sides of the housing and made of a hydrophobic material, with provisioning of the preservation of the electrolyte in the fuel element and removal from its housing of escaped hydrogen along the spiral surface of the hydrophobic covers.

EFFECT: improvement of the power performance of the fuel element is provided.

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Description

The invention relates to energy sources, in particular to air-aluminum current sources.

Known chemical current source (Pat. RU 2127932), in which the replacement of the aluminum electrode is also carried out by opening the battery housing with the subsequent installation of a new electrode.

A disadvantage of the known methods for introducing an electrode into a battery is that for the period of replacing the electrode, the battery must be taken out of the power supply circuit.

A fuel battery is known (application RU 2011127181), in which consumable electrodes in the form of tapes are pulled through the battery housing through the pressure glands and the pressure glands as they are developed with the help of lingering drums, which ensures the input of the consumable electrodes into the battery without interrupting the power supply circuit.

The disadvantage of this method is that the gas inlets and gas inlets do not remove hydrogen released from the battery during operation.

The technical result of the invention is the provision of automatic input of the electrode with an increased working area of the consumable electrode in the fuel cell without interrupting the energy supply circuit, increasing the energy performance of the fuel cell.

The specified technical result is achieved in that the method of introducing a consumable electrode into an air-aluminum fuel cell includes moving the consumable electrode as it is generated inside the fuel cell body. According to the invention, a consumable electrode is used in the form of an aluminum wire, which is wound on a helical groove of a thin-walled rod of a dielectric hydrophobic material and one end of which is inserted into the cavity of a thin-walled

rod through the hole in its lower part, and the expendable electrode is moved by screwing a thin-walled rod into the covers of the fuel cell located on both sides of the body and made of hydrophobic material, ensuring the electrolyte is stored inside the fuel cell and the hydrogen generated from the body is removed by screw surface hydrophobic caps.

The movement of the consumable electrode wound on a thin-walled rod with a helical groove occurs as a result of screwing it into the caps, which are made of hydrophobic material (fluoroplastic, ps, lithium), while the electrolyte remains inside the fuel cell, and the hydrogen released during operation is removed through the screw surfaces from the fuel cell housing.

The cylindrical generatrix for the consumable electrode is made in the form of a thin-walled rod with a helical groove on which an electrode made of aluminum wire is wound. The core is made of a dielectric hydrophobic material, which allows not to interact with the electrolyte. A rod with an aluminum wire electrode increases the active area of the consumable electrode and thus increases the energy characteristics (amount of current taken) of an air-aluminum fuel cell.

The invention is illustrated by drawings, where:

in FIG. 1 shows an air-aluminum current source;

in FIG. 2 is a view A in FIG. one;

in FIG. 3 is a view B in FIG. one.

An air-aluminum fuel cell stands out of a metal housing 1 with openings 2 for air to pass to the three-phase boundary, a gas diffusion cathode 3, an electrolyte 4, 2 hydrophobic caps 5 located on both sides of the metal housing 1, an electrode in the form of a thin-walled rod 6, aluminum wire 7 wound on a helical groove.

As the aluminum wire 7 is consumed, corrosion and passivation of the electrode surface occurs, which leads to a decrease in the magnitude of the removed current and the attenuation of the electrochemical process. To activate the process, it is necessary to screw a thin-walled rod, with a helical groove in which a consumable aluminum wire is wound, into hydrophobic caps 5. Hydrogen is released through the screw surfaces of the hydrophobic caps 5, while the electrolyte remains inside the metal housing 1 of the fuel cell.

This method allows you to automate the process of replacing the anode (consumable electrode) in an air-aluminum current source (VAIT) without interrupting the energy supply circuit, as well as removing hydrogen released during operation.

Claims (1)

A method of introducing a consumable electrode into an air-aluminum fuel cell, including moving the consumable electrode as it is generated inside the fuel cell body, characterized in that a consumable electrode is used in the form of an aluminum wire, which is wound on a helical groove of a thin-walled rod of dielectric hydrophobic material and one end which is introduced into the cavity of a thin-walled rod through an opening in its lower part, and the movement of the consumable electrode is carried out by screwing the use of a thin-walled rod in the covers of the fuel cell located on both sides of the housing and made of hydrophobic material, ensuring the preservation of the electrolyte inside the fuel cell and the removal of hydrogen from its housing on the helical surface of the hydrophobic caps.

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