CN223022015U - Three-electrode electrolytic cell device - Google Patents

Abstract

The application discloses a three-electrode electrolytic cell device which comprises an electrolytic cell, a first conductive piece and a second conductive piece, wherein the first conductive piece is arranged in the electrolytic cell, an electrode module comprises a working electrode, a counter electrode and a reference electrode, the second conductive piece is arranged on at least one of the three electrodes, and the second conductive piece is communicated with or disconnected from the first conductive piece under the condition that the electrode module is arranged in or detached from the electrolytic cell. According to the scheme provided by the application, when the electrode needs to be replaced, the corresponding working electrode, counter electrode or reference electrode is only required to be detached from the electrolytic cell, at the moment, the second conductive piece on the working electrode, counter electrode or reference electrode is automatically disconnected from the first conductive piece, and the whole process can be completed without disconnecting the first conductive piece from an external circuit, so that the step of rewiring the first conductive piece and the external circuit is avoided, and the replacement efficiency is effectively improved.

Description

Three-electrode electrolytic cell device

Technical Field

The application relates to the technical field of electrolytic cells, in particular to a three-electrode electrolytic cell device.

Background

As the most commonly used three-electrode electrolytic cell, the most intuitive device for reflecting the performances of different electrodes and electrolyte is widely focused on the research of parts and functions of the three-electrode electrolytic cell.

In the process of replacing electrodes, the three-electrode electrolytic cell in the related art has the problem of low replacement efficiency.

Disclosure of utility model

In view of the above problems, the present application provides a three-electrode electrolytic cell device, which can solve the problem of low replacement efficiency of the existing three-electrode electrolytic cell during the replacement of the electrode.

In order to solve the technical problems, the application provides a three-electrode electrolytic cell device, which comprises:

an electrolytic cell;

The conductive assembly comprises a first conductive piece and a second conductive piece, and the first conductive piece is arranged in the electrolytic cell;

The electrode module comprises a working electrode, a counter electrode and a reference electrode, and the working electrode, the counter electrode and the reference electrode are detachably arranged in the electrolytic cell; at least one of the three electrodes of the working electrode, the counter electrode and the reference electrode is provided with the second conductive piece;

The second conductive member is connected to or disconnected from the first conductive member under the condition that the electrode module is disposed inside or detached from the electrolytic cell.

In the technical scheme of the embodiment of the application, the second conductive piece is communicated with the first conductive piece when the electrode module is arranged in the electrolytic cell, the second conductive piece is automatically disconnected from the first conductive piece when the electrode module is detached from the electrolytic cell, and the first conductive piece is arranged on the electrolytic cell, and the working electrode, the counter electrode and the reference electrode are all detachably arranged on the electrolytic cell, so that when the electrode needs to be replaced, the corresponding working electrode, counter electrode or reference electrode only needs to be detached from the electrolytic cell, at the moment, the second conductive piece on the working electrode, counter electrode or reference electrode is automatically disconnected from the first conductive piece, and the whole process can be completed without disconnecting the first conductive piece from an external circuit, thereby avoiding the step of rewiring the first conductive piece with the external circuit, effectively improving the replacement efficiency.

In some embodiments, the second conductive member is disposed on both the working electrode and the counter electrode;

or the working electrode and the reference electrode are both provided with the second conductive piece;

or the counter electrode and the reference electrode are both provided with the second conductive piece;

Or the working electrode, the counter electrode and the reference electrode are all provided with the second conductive piece.

In some embodiments, the first conductive member comprises a first wire having one end fixed in an inner wall of the electrolytic cell and the other end located outside the electrolytic cell;

The first electrode rod is detachably arranged in the electrolytic cell, the second lead is fixed on the first electrode rod, and the second lead is electrically connected with the working electrode;

The first wire is connected or disconnected with the second wire under the condition that the first electrode rod is arranged inside the electrolytic cell or detached from the electrolytic cell. Since the first electrode rod is detachably arranged on the electrolytic cell, the first wire and the second wire can be conveniently connected or disconnected by installing or detaching the first electrode rod.

In some embodiments, the first electrode rod comprises a first guide rod and a second guide rod coaxially connected, the first guide rod having a diameter greater than the diameter of the second guide rod;

The electrolytic cell is provided with a first fixing hole and a first through hole, the diameter of the first fixing hole is larger than that of the first through hole, one end of the first fixing hole is communicated with the outside, the other end of the first fixing hole is communicated with the first through hole, and the first through hole is communicated with the inner cavity of the electrolytic cell;

Under the condition that the first electrode rod is arranged in the electrolytic cell, the first guide rod is positioned in the first fixing hole, and the second guide rod is arranged in the first through hole in a penetrating way and at least partially arranged in the electrolytic cell. Therefore, the first electrode rod can be fixed on the electrolytic cell or detached from the electrolytic cell through simple plug-in and pull-out, and the installation efficiency of the first electrode rod is effectively improved.

In some embodiments, a first protrusion is disposed on the first guide rod, and a first groove is disposed in an inner wall of the electrolytic cell, and the first protrusion is matched with the first groove. The first protrusion is matched with the first groove, so that the installation position of the first guide rod on the electrolytic cell is effectively limited, the installation position of the first electrode rod is limited, and the position and the orientation of the working electrode on the first electrode rod in the interior of the electrolytic cell are further limited.

In some embodiments, the three-electrode cell device further comprises a first seal disposed within the first through hole, and the first seal is sleeved on the second guide rod. Therefore, the tightness between the second guide rod and the first through hole is effectively improved, and the volatilization of electrolyte in the electrolytic cell from the first through hole is avoided.

In some embodiments, the three-electrode cell device further comprises a first conductive sheet and a second conductive sheet;

The first conducting strip is arranged on the first guide rod and connected with the second conducting wire, the second conducting strip is arranged in the inner wall, and the second conducting strip is connected with one end of the first conducting wire, which is positioned on the inner wall;

the first conductive sheet is connected or disconnected with the second conductive sheet under the condition that the first electrode rod is arranged inside the electrolytic cell or is detached from the electrolytic cell. Through the setting of first conducting strip and second conducting strip, increased the area of contact of first wire and second wire when the intercommunication, ensure that first wire and second wire can communicate.

In some embodiments, the first conductive sheet and the second conductive sheet are plugged with the first electrode rod disposed inside the electrolytic cell. The first conductive sheet and the second conductive sheet can be spliced together, so that the stability of the first conductive sheet and the second conductive sheet in connection is ensured.

In some embodiments, the first conductive sheet has a first contact disposed thereon and the second conductive sheet has a second contact disposed thereon, the first contact and the second contact mating.

In some embodiments, a gold plating layer is disposed on the first contact and/or the second contact. The gold plating layer can improve the uniformity and the contact quality of a contact surface, so that the generation of contact resistance is reduced, the energy loss in the signal transmission process can be effectively reduced by the reduction of the contact resistance, the transmission efficiency is improved, the heating of wires can be reduced, the signal attenuation and the signal distortion are reduced, and the stability and the accuracy of the signal transmission are ensured.

In some embodiments, the first conductive member further comprises a first terminal disposed on a surface of the electrolytic cell;

One end of the first wire is fixed in the inner wall of the electrolytic cell, and the other end of the first wire passes through the first wiring terminal and is positioned outside the electrolytic cell. Through setting up first binding post, can make things convenient for the connection of external circuit.

In some embodiments, the first electrode shaft is provided with a wire guide in which the second wire is located. In this way, the second wire can be secured inside the first electrode rod, reducing the contact of the second wire with the electrolyte in the electrolytic cell.

In some embodiments, the second conductive member further comprises a second electrode rod and a third wire, the first conductive member further comprises a fourth wire, one end of the fourth wire is fixed on the inner wall, and the other end of the fourth wire is positioned outside the electrolytic cell;

The second electrode rod is detachably arranged in the electrolytic cell, and the third lead is fixed on the second electrode rod;

The third wire is connected with the counter electrode, or the third wire is connected with the reference electrode;

The third wire is connected to or disconnected from the fourth wire under the condition that the second electrode rod is disposed inside or detached from the electrolytic cell.

In some embodiments, the connection structure of the second electrode rod and the electrolytic cell is the same as the connection structure of the first electrode rod and the electrolytic cell.

In some embodiments, the connection structure of the third wire and the fourth wire is the same as the connection structure of the first wire and the second wire.

In some embodiments, the first conductive member further comprises a fifth wire having one end connected to the reference electrode and the other end passing through the electrolytic cell and then being located outside the electrolytic cell, or,

One end of the fifth lead is connected with the counter electrode, and the other end of the fifth lead passes through the electrolytic cell and is positioned outside the electrolytic cell.

In some embodiments, the first conductive member further comprises a third connection terminal, and the fifth wire is disposed on a surface of the electrolytic cell;

The other end of the fifth wire passes through the third connecting terminal and then is positioned outside the electrolytic cell.

In some embodiments, the counter electrode is directly opposite to the working electrode under the condition that the fifth wire is connected to the counter electrode. Thus, the electric field strength can be kept the same throughout the electrode.

In some embodiments, the counter electrode is parallel to the cell interior floor, and the working electrode intersects the cell interior floor;

Or the counter electrode is intersected with the inner bottom surface of the electrolytic cell, and the working electrode is parallel to the inner bottom surface of the electrolytic cell;

or the counter electrode and the working electrode are intersected with the inner bottom surface of the electrolytic cell;

or the counter electrode and the working electrode are parallel to the inner bottom surface of the electrolytic cell.

In some embodiments, the second conductive member further includes a second electrode rod, a third wire, a third electrode rod, and a sixth wire, the first conductive member further includes a fourth wire and a fifth wire, one end of the fourth wire and one end of the fifth wire are both fixed to the inner wall, and the other end of the fourth wire and the other end of the fifth wire are both located outside the electrolytic cell;

The second electrode rod and the third electrode rod are both detachably arranged in the electrolytic cell, the third wire is fixed on the second electrode rod, and the sixth wire is fixed on the third electrode rod;

the third wire is connected with the counter electrode, and the sixth wire is connected with the reference electrode;

The third wire is connected to or disconnected from the fourth wire and the sixth wire is connected to or disconnected from the fifth wire under the condition that the second electrode rod and the third electrode rod are disposed inside or detached from the electrolytic cell.

In some embodiments, the connection structure of the second electrode rod and the electrolytic cell, the connection structure of the third electrode rod and the electrolytic cell, and the connection structure of the first electrode rod and the electrolytic cell are all the same.

In some embodiments, the connection structure of the third and fourth wires, the connection structure of the sixth and fifth wires, the connection structure of the first and second wires are the same.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the embodiments. The drawings are only for purposes of illustrating embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is a schematic view of a three electrode cell apparatus according to some embodiments of the present application;

FIG. 2 is a perspective view of FIG. 1;

FIG. 3 is a schematic view of a three electrode cell apparatus according to some embodiments of the present application;

FIG. 4 is a perspective view of FIG. 3;

FIG. 5 is a schematic view of a three electrode cell apparatus according to some embodiments of the application;

Fig. 6 is a perspective view of fig. 5.

Reference numerals in the specific embodiments are as follows:

10. Electrolytic cell, 101, inner wall, 102, first fixing hole, 103, first through hole, 104, second fixing hole, 105, second through hole, 106, first groove, 107, second groove, 11, first electrode rod, 111, first guide rod, 1111, first protrusion, 112, second guide rod, 12, second electrode rod, 121, second protrusion, 13, working electrode, 14, counter electrode, 15, reference electrode, 16, second guide wire, 17, first conductive sheet, 18, first guide wire, 19, second conductive sheet, 20, first binding post, 21, third guide wire, 22, third conductive sheet, 23, fourth guide wire, 24, fourth conductive sheet, 25, second binding post, 26, first seal, 27, second seal, 28, fifth guide wire, 29, third binding post, 30, third electrode rod, 31, sixth guide wire.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terms used herein are for the purpose of describing particular embodiments only and are not intended to be limiting of the application, and the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the above description of the drawings are intended to cover non-exclusive inclusions.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B, and may indicate that a exists alone, while a and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "fixed" and the like are to be construed broadly and include, for example, fixed connection, detachable connection, or integral therewith, mechanical connection, electrical connection, direct connection, indirect connection via an intermediary, communication between two elements, or interaction between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

The present application will be described in detail below.

In recent years, electrochemical technologies including the fields of batteries, electrocatalysis and the like have been greatly developed, and among them, three-electrode electrolytic cells are the most commonly used devices for most intuitively reflecting the performances of different electrodes and electrolyte, and the research on the parts and functions of the devices is widely focused.

The common three-electrode electrolytic cell comprises a working electrode, a reference electrode and a counter electrode, wherein the working electrode, the reference electrode or the counter electrode is connected with an external circuit through a wire when in use, when the electrode needs to be replaced, the wire on the electrode needs to be disconnected with the external circuit, after the new electrode is replaced, the new electrode needs to be connected with the external circuit again, and the whole process needs to disconnect the external circuit and then connect an external cable again, so that the process is complex and the replacement efficiency is low.

In order to solve the problem that the replacement efficiency is low in the process of replacing the electrodes of the conventional three-electrode electrolytic cell, an embodiment of the application provides a three-electrode electrolytic cell device, as shown in fig. 1 and in combination with fig. 2, which comprises an electrolytic cell 10, a conductive assembly and an electrode module, wherein the conductive assembly comprises a first conductive member and a second conductive member, the first conductive member is arranged in the electrolytic cell 10, the electrode module comprises a working electrode 13, a counter electrode 14 and a reference electrode 15, the working electrode 13, the counter electrode 14 and the reference electrode 15 are all detachably arranged in the electrolytic cell 10, at least one electrode of the three electrodes of the working electrode 13, the counter electrode 14 and the reference electrode 15 is provided with the second conductive member, and when the electrode module is arranged in the electrolytic cell 10 or detached from the electrolytic cell 10, the second conductive member is communicated with or disconnected from the first conductive member.

In the present embodiment, the shape of the electrolytic cell 10 is not particularly limited, and may be a square, round or other common geometric structure, and may be specifically determined according to practical situations, which is not limited in the present embodiment.

The electrodes of the working electrode 13, the counter electrode 14 and the reference electrode 15 in this embodiment are electron conductors or semiconductors in contact with an electrolyte solution or electrolyte, and are multiphase systems.

The working electrode 13 is also called a research electrode, and the reaction under study occurs on the electrode, and in photoelectrochemistry, a common working electrode is a photoelectrode. The working electrode 13 may be solid or liquid, and various conductive solid materials can be used as the electrode, while the electrode material is predetermined according to the study properties, and the most common "inert" solid electrode materials are glassy carbon, platinum, gold, silver, lead, conductive glass, and the like. The working electrode 13 is fixed by a common working electrode clamp, and a common platinum electrode clamp and a glassy carbon electrode are used for experiments.

The counter electrode 14, also called auxiliary electrode, and the working electrode 13 form a loop, which leaves the working electrode 13 current free to ensure that the reaction under investigation takes place at the working electrode. Compared with the working electrode 13, the counter electrode 14 should have a larger surface area, so that the externally applied polarization voltage acts on the working electrode 13, the counter electrode 14 itself has small resistance and is not easily polarized, and the shape and position of the counter electrode 14 have influence on experimental results when experiments are performed. The counter electrode 14 is typically a platinum electrode or a graphite rod electrode of different gauges and sizes.

Reference electrode 15 refers to an electrode of known potential that is nearly ideally unpolarized. There is substantially no current flow through reference electrode 15 for measuring the electrode potential of working electrode 13 relative to reference electrode 15. Different reference electrodes 15 can be selected according to different research systems, and common reference electrodes 15 comprise Ag/AgC l electrodes, saturated calomel electrodes, mercury oxide electrodes, mercurous sulfate electrodes and the like, and different reference electrodes need to be selected correctly according to electrolyte solution systems.

The first conductive member and the second conductive member in this embodiment may be wires, conductive sheets, or the like, and may specifically be determined according to practical situations, which is not limited in this embodiment of the present disclosure.

The working principles of the working electrode 13, the counter electrode 14 and the reference electrode 15 in the electrolytic cell 10 in this embodiment are all the prior art, and are not described here again.

In the technical scheme of the embodiment of the application, the second conductive piece is communicated with the first conductive piece when the electrode module is arranged in the electrolytic cell 10, and the second conductive piece is automatically disconnected from the first conductive piece when the electrode module is detached from the electrolytic cell 10, and the first conductive piece is arranged on the electrolytic cell 10, so that when the electrode needs to be replaced, only the corresponding working electrode 13, counter electrode 14 or reference electrode 15 is required to be detached from the electrolytic cell 10, and at the moment, the second conductive piece on the working electrode 13, counter electrode 14 or reference electrode 15 is automatically disconnected from the first conductive piece, and the whole process can be completed without disconnecting the first conductive piece from an external circuit, thereby avoiding the step of rewiring the first conductive piece with the external circuit, effectively improving the replacement efficiency, and the first conductive piece is automatically communicated with the second conductive piece and rewiring the replaced working electrode 13, counter electrode 14 or reference electrode 15 does not need to be installed on the electrolytic cell 10, thereby further improving the replacement efficiency.

According to some embodiments of the application, the working electrode 13 and the counter electrode 14 are provided with a second conductive member as shown in fig. 1, or the working electrode 13 and the reference electrode 15 are provided with a second conductive member as shown in fig. 3, or the counter electrode 14 and the reference electrode 15 are provided with a second conductive member, or the working electrode 13, the counter electrode 14 and the reference electrode 15 are provided with a second conductive member as shown in fig. 5.

In this embodiment, the second conductive members are respectively disposed on the working electrode 13 and the counter electrode 14, or the second conductive members are respectively disposed on the working electrode 13 and the reference electrode 15, or the second conductive members are respectively disposed on the counter electrode 14 and the reference electrode 15, or the second conductive members are respectively disposed on the working electrode 13, the counter electrode 14, and the reference electrode 15, which can be specifically determined according to practical situations, and this embodiment of the present disclosure is not limited thereto.

When the working electrode 13 and the counter electrode 14 need to be replaced, or the working electrode 13 and the counter electrode 15 need to be replaced, or the counter electrode 14 and the counter electrode 15 need to be replaced, or the working electrode 13, the counter electrode 14 and the counter electrode 15 need to be replaced, only the corresponding working electrode 13, the counter electrode 14 and the counter electrode 15 need to be detached from the electrolytic cell 10, at this time, the second conductive piece on the working electrode 13, the counter electrode 14 or the counter electrode 15 is automatically disconnected from the first conductive piece, and the whole process can be completed without disconnecting the first conductive piece from an external circuit, so that the step of rewiring the first conductive piece and the external circuit is avoided, and the replacement efficiency is effectively improved.

According to some embodiments of the present application, as shown in fig. 1 in combination with fig. 2, the first conductive member includes a first conductive wire 18, and the second conductive member includes a second conductive wire 16 and a first electrode rod 11, wherein one end of the first conductive wire 18 is fixed in an inner wall 101 of the electrolytic cell 10 and the other end is located outside the electrolytic cell 10, the first electrode rod 11 is detachably disposed in the electrolytic cell 10, the second conductive wire 16 is fixed to the first electrode rod 11, and the second conductive wire 16 is electrically connected to the working electrode 13, and the second conductive wire 16 is connected to or disconnected from the first conductive wire 18 in a condition that the first electrode rod 11 is disposed inside the electrolytic cell 10 or is detached from the electrolytic cell 10.

In this embodiment, a section of the first wire 18 located inside the electrolytic cell 10 may be integrally formed with the electrolytic cell 10, or a wire guide (not shown) is provided on the inner wall 101 of the electrolytic cell 10, and a section of the first wire 18 located inside the electrolytic cell 10 is located in a corresponding wire guide, which may be specifically determined according to practical situations, but the embodiment of the present disclosure is not limited thereto.

The first electrode rod 11 in this embodiment may be screwed on the electrolytic cell 10, and one end of the first electrode rod 11 is located in the inner cavity of the electrolytic cell 10, or the first electrode rod 11 is clamped on the electrolytic cell 10, and one end of the first electrode rod 11 is located in the inner cavity of the electrolytic cell 10, which may be specifically determined according to practical situations, and this embodiment is not limited in this specification.

In the present embodiment, the second wire 16 may be adhered to the first electrode rod 11, or the second wire 16 may be wound around the first electrode rod 11, which may be specifically determined according to practical situations, but is not limited thereto in the present embodiment.

In this embodiment, since the first electrode rod 11 is detachably provided to the electrolytic cell 10, the connection or disconnection of the second wire 16 on the first electrode rod 11 from the first wire 18 fixed to the electrolytic cell 10 can be conveniently achieved by mounting or dismounting the first electrode rod 11 by an external force.

According to some embodiments of the present application, the first electrode rod 11 comprises a first guide rod 111 and a second guide rod 112 coaxially connected, wherein the diameter of the first guide rod 111 is larger than that of the second guide rod 112, as shown in fig. 1, the electrolytic cell 10 is provided with a first fixing hole 102 and a first through hole 103, wherein the diameter of the first fixing hole 102 is larger than that of the first through hole 103, one end of the first fixing hole 102 is communicated with the outside, the other end is communicated with the first through hole 103, the first through hole 103 is communicated with the inner cavity of the electrolytic cell 10, and the first guide rod 111 is positioned in the first fixing hole 102 and the second guide rod 112 is penetrated through the first through hole 103 and is at least partially positioned in the electrolytic cell 10 under the condition that the first electrode rod 11 is positioned in the electrolytic cell 10.

The first guide rod 111 and the second guide rod 112 in this embodiment are integrally formed, or the first guide rod 111 is clamped on the second guide rod 112, which may be specifically determined according to practical situations, which is not limited in this embodiment of the present disclosure.

The first fixing hole 102 and the first through hole 103 in this embodiment are each specifically formed with a certain depth, for example, the first fixing hole 102 has a depth of 10mm, 12mm, etc., and the first through hole 103 has a depth of 6mm, 8mm, etc., which may be specifically determined according to practical situations, and this embodiment is not limited in this specification.

Referring to fig. 1, since the electrolytic cell 10 is provided with the first fixing hole 102 and the first through hole 103, the diameter of the first fixing hole 102 is larger than that of the first through hole 103, one end of the first fixing hole 102 communicates with the outside, the other end communicates with the first through hole 103, the first through hole 103 communicates with the inner cavity of the electrolytic cell 10, and when the first electrode rod 11 is mounted on the electrolytic cell 10, only the first electrode rod 11 needs to be inserted into the first fixing hole 102, at this time, the first guide rod 111 is positioned in the first fixing hole 102, and the second guide rod 112 extends into the electrolytic cell 10 after passing through the first through hole 103, so that the first electrode rod 11 can be fixed to the electrolytic cell 10 by simple insertion and removal, or detached from the electrolytic cell 10, thereby effectively improving the mounting efficiency of the first electrode rod 11.

According to some embodiments of the present application, as shown in fig. 1, a first protrusion 1111 is provided on the first guide rod 111, and a first groove 106 is provided in the inner wall 101 of the electrolytic cell 10, wherein the first protrusion 1111 is engaged with the first groove 106.

Referring to fig. 1, the first protrusion 1111 may be disposed at a lower right side of the first guide bar 111 in the present embodiment, it is of course understood that the first protrusion 1111 may also be disposed at a lower left side of the first guide bar 111, etc., which may be specifically determined according to practical situations, and the embodiment of the present disclosure is not limited thereto.

In this embodiment, since the first protrusions 1111 are disposed on the first guide rod 111, when the first guide rod 111 is inserted into the corresponding first fixing hole 102, the first protrusions 1111 are located in the first grooves 106, so that the installation position of the first guide rod 111 on the electrolytic cell 10 can be effectively defined, thereby defining the installation position of the first electrode rod 11, and further defining the position and orientation of the working electrode 13 on the first electrode rod 11 in the interior of the electrolytic cell 10.

According to some embodiments of the application, as shown in fig. 1, the three-electrode electrolytic cell device further comprises a first sealing member 26, wherein the first sealing member 26 is disposed in the first through hole 103, and the first sealing member 26 is sleeved on the second guide rod 112.

The first sealing member 26 in this embodiment is a sealing ring structure, a circle of clamping grooves are arranged on the inner wall of the first through hole 103, and the first sealing member 26 is fixed in the corresponding clamping groove. When the first electrode rod 11 sequentially passes through the first fixing hole 102 and the first through hole 103 from top to bottom and then stretches into the electrolytic cell 10, the sealing ring is correspondingly sleeved on the second guide rod 112 on the first electrode rod 11, so that the tightness between the second guide rod 112 and the first through hole 103 is effectively improved, and the electrolyte in the electrolytic cell 10 is prevented from volatilizing from the first through hole 103 to the outside.

According to some embodiments of the present application, as shown in fig. 1, the three-electrode cell device further comprises a first conductive sheet 17 and a second conductive sheet 19, wherein the first conductive sheet 17 is disposed on the first guide rod 111, the first conductive sheet 17 is connected to the second conductive wire 16, the second conductive sheet 19 is disposed in the inner wall 101, and the second conductive sheet 19 is connected to an end of the inner wall 101, and the first conductive sheet 17 is connected to or disconnected from the second conductive sheet 19 under the condition that the first electrode rod 11 is disposed inside the cell 10 or is detached from the cell 10.

In this embodiment, the first conductive sheet 17 may be fixed on the side surface of the first guide rod 111 by a bolt, or the first conductive sheet 17 may be clamped on the side surface of the first guide rod 111, which may be specifically determined according to practical situations, which is not limited in this embodiment of the present disclosure.

Referring to fig. 1, when the first conductive sheet 17 is fixed to the side of the first guide bar 111, the side of the first conductive sheet 17 facing away from the first guide bar 111 is flush with the side of the first guide bar 111.

The second conductive sheet 19 in the present embodiment may be fixed in the inner wall 101 by bolts, or the second conductive sheet 19 may be clamped in the inner wall 101, specifically may be determined according to practical situations, which is not limited in the present embodiment.

Referring to fig. 1, when the second conductive sheet 19 is fixed to the inner wall 101, the side of the second conductive sheet 19 facing the first conductive sheet 17 is flush with the side of the first fixing hole 102 around the circumferential direction.

When the first guide rod 111 is installed in the first fixing hole 102, the first conductive sheet 17 is in contact communication with the second conductive sheet 19, and when the first guide rod 111 is pulled out of the first fixing hole 102, the first conductive sheet 17 and the second conductive sheet 19 are automatically separated. By providing the first conductive sheet 17 and the second conductive sheet 19, the contact area of the second conductive wire 16 and the first conductive wire 18 at the time of communication can be increased, ensuring that the second conductive wire 16 and the first conductive wire 18 can be effectively communicated.

According to some embodiments of the present application, as shown in fig. 3, the first conductive sheet 17 and the second conductive sheet 19 are inserted under the condition that the first electrode rod 11 is disposed inside the electrolytic cell 10.

The plugging structure of the first conductive sheet 17 and the second conductive sheet 19 in this embodiment is equivalent to the mating structure of the existing plug and socket, and will not be described here again.

Referring to fig. 3, when the first conductive sheet 17 and the second conductive sheet 19 are distributed in the up-down direction, that is, the first conductive sheet 17 is located above the second conductive sheet 19, the first conductive sheet 17 is located at least partially or entirely below the first guide bar 111 on the first electrode bar 11 after the first conductive sheet 17 is fixed to the first guide bar 111.

When the second conductive sheet 19 is fixed to the inner wall 101, the second conductive sheet 19 is at least partially or entirely positioned in the corresponding first groove 106.

When the first guide rod 111 is installed in the first fixing hole 102, the first conductive sheet 17 on the first guide rod 111 stretches into the corresponding first groove 106 and is clamped with the second conductive sheet 19, so that the stability of the first conductive sheet 17 and the second conductive sheet 19 in connection can be ensured.

According to some embodiments of the application, the first conductive sheet 17 is provided with a first contact and the second conductive sheet 19 is provided with a second contact, the first contact and the second contact mating.

The first contact and the second contact in this embodiment are both metal contacts, and when the first contact and the second contact are in contact under the condition of energization, the first conductive sheet 17 and the second conductive sheet 19 are in a communication state therebetween.

According to some embodiments of the application, the first contact and/or the second contact is provided with a gold plating (not identified in the figures).

In this embodiment, the gold plating layer may be provided on the first contact alone, or the gold plating layer may be provided on the second contact alone, or the gold plating layer may be provided on both the first contact and the second contact, and specifically may be determined according to practical situations, which is not limited in this embodiment.

Gold plating, copper plating, and the like can be selected as the gold plating layer in the embodiment, and the gold plating layer can be specifically determined according to practical conditions, and the embodiment of the present specification is not limited thereto.

The gold plating layer can improve the uniformity and the contact quality of a contact surface, so that the generation of contact resistance is reduced, the energy loss in the signal transmission process can be effectively reduced by the reduction of the contact resistance, the transmission efficiency is improved, the heating of wires can be reduced, the signal attenuation and the signal distortion are reduced, and the stability and the accuracy of the signal transmission are ensured.

According to some embodiments of the present application, as shown in fig. 1, the first conductive member further includes a first connection terminal 20, where the first connection terminal 20 is disposed on the surface of the electrolytic cell 10, and one end of the first conductive wire 18 is fixed in the inner wall 101 of the electrolytic cell 10, and the other end is located outside the electrolytic cell 10 after passing through the first connection terminal 20.

The first connection terminal 20 in this embodiment may be clamped to the surface of the electrolytic cell 10 around the circumferential direction, or the first connection terminal 20 may be fixed to the surface of the electrolytic cell 10 around the circumferential direction by a bolt, which may be specifically determined according to the actual situation, which is not limited in this embodiment of the present disclosure.

In this embodiment, since the first connection terminal 20 is provided on the electrolytic cell 10, when the external circuit needs to be connected to the first lead wire 18, the external circuit needs to be fixed to the corresponding first connection terminal 20, thereby facilitating the connection of the external circuit.

According to some embodiments of the present application, the first electrode rod 11 is provided with a wire guide (not shown), wherein the second wire 16 is positioned in the wire guide.

The second lead 16 of the present embodiment has one section located in the lead hole and the other section located outside the first electrode rod 11 and connected to the working electrode 13, so that the second lead 16 can be partially fixed to the inside of the first electrode rod 11. When the second guide bar 112 on the first electrode rod 11 extends into the interior of the electrolytic cell 10, it is possible to avoid that the second guide wire 16 is entirely in contact with the electrolyte in the electrolytic cell 10.

According to some embodiments of the present application, as shown in fig. 1 in combination with fig. 2, the second conductive member further comprises a second electrode rod 12 and a third conductive wire 21, the first conductive member further comprises a fourth conductive wire 23, wherein one end of the fourth conductive wire 23 is fixed on the inner wall 101 and the other end is positioned outside the electrolytic cell 10;

the third lead wire 21 is connected to the counter electrode 14 as shown in fig. 1, or the third lead wire 21 is connected to the reference electrode 15 as shown in fig. 3, and the third lead wire 21 is connected to or disconnected from the fourth lead wire 23 under the condition that the second electrode rod 12 is disposed inside the electrolytic cell 10 or is detached from the electrolytic cell 10.

According to some embodiments of the present application, the connection structure of the second electrode rod 12 and the electrolytic cell 10 is the same as the connection structure of the first electrode rod 11 and the electrolytic cell 10, and it is of course understood that the connection structure of the second electrode rod 12 and the electrolytic cell 10 may also be different from the connection structure of the first electrode rod 11 and the electrolytic cell 10, and may be specifically determined according to the actual situation, which is not limited in this embodiment of the present specification.

Referring to fig. 1, the structure of the second electrode rod 12 is the same as that of the first electrode rod 11, a second protrusion 121 is also provided on the second electrode rod 12, and a second fixing hole 104, a second through hole 105 and a second groove 107 are further provided on the electrolytic cell 10, wherein the structures of the second fixing hole 104 and the second through hole 105 are the same as those of the first fixing hole 102 and the first through hole 103, and the structures of the second groove 107 and the first groove 106 are the same, and are not described herein.

Reference is made to the connection structure of the second electrode rod 12 and the electrolytic cell 10 above for the connection structure of the first electrode rod 11 and the electrolytic cell 10, and the description thereof will not be repeated here. For the beneficial effects caused by the connection structure of the second electrode rod 12 and the electrolytic cell 10, reference may also be made to the beneficial effects caused by the connection structure of the first electrode rod 11 and the electrolytic cell 10, which are not described in detail herein.

The second sealing member 27 is also disposed on the second electrode rod 12 in this embodiment, and the connection structure and beneficial effects of the second sealing member 27 and the second electrode rod 12 can refer to the connection structure and beneficial effects of the first electrode rod 11 and the first sealing member 26, which are not described in detail herein.

According to some embodiments of the present application, the connection structure of the third wire 21 and the fourth wire 23 is the same as the connection structure of the second wire 16 and the first wire 18. It should be understood, of course, that the connection structure of the third wire 21 and the fourth wire 23 may be different from the connection structure of the second wire 16 and the first wire 18, and may be specifically determined according to the actual situation, which is not limited in the embodiment of the present disclosure.

Referring to fig. 1, a third conductive sheet 22 may be disposed on the third conductive wire 21, and a fourth conductive sheet 24 may be disposed on the fourth conductive wire 23, wherein a section of the fourth conductive wire 23 located outside the electrolytic cell 10 is fixed to the second connection terminal 25 as shown in fig. 2 or 4.

For the connection structure of the third conductive sheet 22 and the connection structure of the fourth conductive sheet 24, the fourth conductive wire 23 and the second connection terminal 25, reference may be made correspondingly to the connection structure of the first conductive sheet 17 and the second conductive sheet 19, and the connection structure of the first conductive wire 18 and the first connection terminal, and the corresponding beneficial effects may also be referred to the above description, which is not repeated here.

According to some embodiments of the application, the first conductive member further comprises a fifth conductive wire 28, one end of the fifth conductive wire 28 being connected to the reference electrode 15 and the other end being located outside the electrolytic cell 10 after passing through the electrolytic cell 10, as shown in fig. 1 in combination with fig. 2, or one end of the fifth conductive wire 28 being connected to the counter electrode 14 and the other end being located outside the electrolytic cell 10 after passing through the electrolytic cell 10, as shown in fig. 3 in combination with fig. 4.

In this embodiment, referring to fig. 1, when the working electrode 13 is connected to the second wire 16 and the counter electrode 14 is connected to the third wire 21, the fifth wire 28 is connected to the reference electrode 15, and referring to fig. 3, when the working electrode 13 is connected to the second wire 16 and the reference electrode 15 is connected to the third wire 21, the fifth wire 28 is connected to the counter electrode 14.

In this embodiment, the fifth wire 28 is provided on the electrolytic cell 10, so that the reference electrode 15 or the counter electrode 14 can be conveniently connected to an external line.

According to some embodiments of the present application, as shown in fig. 2 or 4, the first conductive member further includes a third connection terminal 29, and a fifth wire 28 is disposed on the surface of the electrolytic cell 10, and the other end of the fifth wire 28 passes through the third connection terminal 29 and is located outside the electrolytic cell 10.

The third connection terminal 29 in this embodiment may be clamped to the surface of the electrolytic cell 10 around the circumferential direction, or the third connection terminal 29 may be fixed to the surface of the electrolytic cell 10 around the circumferential direction by a bolt, which may be specifically determined according to practical situations, and this embodiment is not limited in this specification.

In this embodiment, since the third connection terminal 29 is provided on the electrolytic cell 10, when the external circuit needs to be connected to the fifth wire 28, the external circuit needs to be fixed to the corresponding third connection terminal 29, thereby facilitating the connection of the external circuit.

According to some embodiments of the present application, referring to fig. 3, when the fifth wire 28 is connected to the counter electrode 14, the counter electrode 14 is opposite to the working electrode 13. Thus, the electric field strength can be kept the same at each of the electrode 14 and the working electrode 13. Meanwhile, when the current is measured, the transmission capacity of charges is stronger, and the sensitivity is higher.

According to some embodiments of the application, counter electrode 14 is parallel to the interior bottom surface of cell 10, working electrode 13 intersects the interior bottom surface of cell 10, or counter electrode 14 intersects the interior bottom surface of cell 10, working electrode 13 is parallel to the interior bottom surface of cell 10, or counter electrode 14, working electrode 13 each intersect the interior bottom surface of cell 10, or counter electrode 14, working electrode 13 each are parallel to the interior bottom surface of cell 10.

In this embodiment, the four positional relationships between the counter electrode 14 and the working electrode 13 may be determined according to actual conditions, and this is not limited in this embodiment.

When the counter electrode 14 and the working electrode 13 are parallel to the bottom surface of the electrolytic cell 10, the counter electrode 14 is parallel to and opposite to the working electrode 13, so that the electric field intensity of the electrode 14 and the working electrode 13 can be further ensured to be the same. Meanwhile, when the current is measured, the transmission capacity of charges is stronger, and the sensitivity is higher.

According to some embodiments of the present application, as shown in fig. 5 in combination with fig. 6, the second conductive member further includes a second electrode rod 12, a third wire 21, a third electrode rod 30, and a sixth wire 31, wherein the first conductive member further includes a fourth wire 23 and a fifth wire 28, one end of the fourth wire 23 and one end of the fifth wire 28 are both fixed to the inner wall 101, the other end of the fourth wire 23 and the other end of the fifth wire 28 are both located outside the electrolytic cell 10, the second electrode rod 12 and the third electrode rod 30 are both detachably disposed in the electrolytic cell 10, the third wire 21 is fixed to the second electrode rod 12, the sixth wire 31 is fixed to the third electrode rod 30, the third wire 21 is connected to the counter electrode 14, the sixth wire 31 is connected to the reference electrode 15, and the third wire 21 is connected to the fourth wire 23 or disconnected from the fifth wire 28 under the condition that the second electrode rod 12 and the third electrode rod 30 are disposed inside the electrolytic cell 10 or detached from the electrolytic cell 10.

The connection structure between the third electrode rod 30, the sixth wire 31 and the fifth wire 28 in the present embodiment may refer to the connection structure between the first electrode rod 11, the second wire 16 and the first wire 18, and the corresponding beneficial effects thereof may refer to the description herein, and will not be repeated here.

According to some embodiments of the present application, the connection structure of the second electrode rod 12 and the electrolytic cell 10, the connection structure of the third electrode rod 30 and the electrolytic cell 10, and the connection structure of the first electrode rod 11 and the electrolytic cell 10 are the same, and specific reference may be made to the connection structure of the first electrode rod 11 and the electrolytic cell 10 hereinabove, and details thereof will not be repeated here.

According to some embodiments of the present application, the connection structure of the third wire 21 and the fourth wire 23, the connection structure of the sixth wire 31 and the fifth wire 28, and the connection structure of the second wire 16 and the first wire 18 are the same, and for details, reference may be made to the connection structure of the second wire 16 and the first wire 18 hereinabove, and details thereof will not be repeated here.

It should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit the technical solution of the present application, and although the detailed description of the present application is given with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application, and all the modifications or substitutions are included in the scope of the claims and the specification of the present application. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (22)

1. A three electrode electrolytic cell apparatus comprising:

an electrolytic cell (10);

The conductive assembly comprises a first conductive piece and a second conductive piece, and the first conductive piece is arranged on the electrolytic cell (10);

The electrode module comprises a working electrode (13), a counter electrode (14) and a reference electrode (15), wherein the working electrode (13), the counter electrode (14) and the reference electrode (15) are detachably arranged inside the electrolytic cell (10), and at least one of the three electrodes of the working electrode (13), the counter electrode (14) and the reference electrode (15) is provided with the second conductive piece;

the second conductive member is connected to or disconnected from the first conductive member under the condition that the electrode module is disposed inside the electrolytic cell (10) or detached from the electrolytic cell (10).

2. A three-electrode cell arrangement according to claim 1, characterized in that the second conductive member is provided on both the working electrode (13) and the counter electrode (14);

Or the working electrode (13) and the reference electrode (15) are provided with the second conductive piece;

or the counter electrode (14) and the reference electrode (15) are provided with the second conductive piece;

Or the working electrode (13), the counter electrode (14) and the reference electrode (15) are respectively provided with the second conductive piece.

3. The three-electrode cell arrangement according to claim 1, characterized in that the first conductive member comprises a first wire (18), one end of the first wire (18) being fixed in an inner wall (101) of the cell (10) and the other end being located outside the cell (10);

The second conductive piece comprises a second lead (16) and a first electrode rod (11), the first electrode rod (11) is detachably arranged on the electrolytic cell (10), the second lead (16) is fixed on the first electrode rod (11), and the second lead (16) is electrically connected with the working electrode (13);

The first wire (18) is connected or disconnected from the second wire (16) under the condition that the first electrode rod (11) is arranged inside the electrolytic cell (10) or is detached from the electrolytic cell (10).

4. A three-electrode cell device according to claim 3, characterized in that the first electrode rod (11) comprises a first guide rod (111) and a second guide rod (112) connected coaxially, the diameter of the first guide rod (111) being larger than the diameter of the second guide rod (112);

The electrolytic cell (10) is provided with a first fixing hole (102) and a first through hole (103), the diameter of the first fixing hole (102) is larger than that of the first through hole (103), one end of the first fixing hole (102) is communicated with the outside, the other end of the first fixing hole is communicated with the first through hole (103), and the first through hole (103) is communicated with an inner cavity of the electrolytic cell (10);

Under the condition that the first electrode rod (11) is arranged in the electrolytic cell (10), the first guide rod (111) is positioned in the first fixing hole (102), and the second guide rod (112) is arranged in the first through hole (103) in a penetrating way and at least partially arranged in the electrolytic cell (10).

5. The three-electrode cell arrangement according to claim 4, characterized in that the first guide bar (111) is provided with a first protrusion (1111), a first groove (106) is provided in the inner wall (101) of the cell (10), and the first protrusion (1111) cooperates with the first groove (106).

6. The three-electrode cell device according to claim 4, further comprising a first seal (26), wherein the first seal (26) is disposed in the first through hole (103), and wherein the first seal (26) is sleeved on the second guide rod (112).

7. The three-electrode cell arrangement according to claim 4, characterized in that the three-electrode cell arrangement further comprises a first conductive sheet (17) and a second conductive sheet (19);

The first conductive sheet (17) is arranged on the first guide rod (111), the first conductive sheet (17) is connected with the second wire (16), the second conductive sheet (19) is arranged in the inner wall (101), and the second conductive sheet (19) is connected with one end of the first wire (18) at the inner wall (101);

The first conductive sheet (17) is connected or disconnected with the second conductive sheet (19) under the condition that the first electrode rod (11) is arranged inside the electrolytic cell (10) or is detached from the electrolytic cell (10).

8. The three-electrode cell arrangement according to claim 7, characterized in that the first conductive sheet (17) and the second conductive sheet (19) are plugged with the first electrode rod (11) disposed inside the cell (10).

9. A three-electrode cell arrangement according to claim 7, characterized in that the first conductive sheet (17) is provided with a first contact and the second conductive sheet (19) is provided with a second contact, the first contact and the second contact cooperating.

10. The three electrode cell arrangement of claim 9, wherein the first contact and/or the second contact is provided with a gold plating.

11. The three-electrode cell device according to any one of claims 3 to 10, wherein the first conductive member further comprises a first connection terminal (20), the first connection terminal (20) being provided on a surface of the cell (10);

One end of the first wire (18) is fixed in the inner wall (101) of the electrolytic cell (10), and the other end of the first wire passes through the first wiring terminal (20) and is positioned outside the electrolytic cell (10).

12. A three-electrode cell arrangement according to any one of claims 3 to 10, characterized in that the first electrode rod (11) is provided with a wire guide in which the second wire (16) is located.

13. The three-electrode cell device according to any one of claims 3 to 10, wherein the second conductive member further comprises a second electrode rod (12) and a third wire (21), the first conductive member further comprises a fourth wire (23), one end of the fourth wire (23) is fixed to the inner wall (101), and the other end is located outside the cell (10);

The second electrode rod (12) is detachably arranged on the electrolytic cell (10), and the third lead (21) is fixed on the second electrode rod (12);

the third wire (21) is connected with the counter electrode (14), or the third wire (21) is connected with the reference electrode (15);

The third wire (21) is connected or disconnected with the fourth wire (23) under the condition that the second electrode rod (12) is arranged inside the electrolytic cell (10) or is detached from the electrolytic cell (10).

14. The three-electrode cell arrangement according to claim 13, characterized in that the connection structure of the second electrode rod (12) and the cell (10) is identical to the connection structure of the first electrode rod (11) and the cell (10).

15. The three-electrode cell device according to claim 13, wherein the connection structure of the third wire (21) and the fourth wire (23) is identical to the connection structure of the first wire (18) and the second wire (16).

16. The three-electrode cell device according to claim 13, wherein the first conductive member further comprises a fifth conductive wire (28), one end of the fifth conductive wire (28) is connected to the reference electrode (15), and the other end is located outside the electrolytic cell (10) after passing through the electrolytic cell (10), or,

One end of the fifth lead (28) is connected with the counter electrode (14), and the other end of the fifth lead passes through the electrolytic cell (10) and is positioned outside the electrolytic cell (10).

17. The three-electrode cell arrangement according to claim 16, characterized in that the first conductive member further comprises a third connection terminal (29), the fifth wire (28) being arranged at the surface of the cell (10);

The other end of the fifth wire (28) passes through the third connecting terminal (29) and is positioned outside the electrolytic cell (10).

18. A three-electrode cell arrangement according to claim 16, characterized in that the counter electrode (14) is directly opposite the working electrode (13) with the fifth wire (28) connected to the counter electrode (14).

19. The three-electrode cell arrangement according to claim 18, characterized in that the counter electrode (14) is parallel to the cell (10) interior bottom surface, the working electrode (13) intersecting the cell (10) interior bottom surface;

Or the counter electrode (14) is intersected with the inner bottom surface of the electrolytic cell (10), and the working electrode (13) is parallel with the inner bottom surface of the electrolytic cell (10);

Or the counter electrode (14) and the working electrode (13) are intersected with the inner bottom surface of the electrolytic cell (10);

Or the counter electrode (14) and the working electrode (13) are parallel to the inner bottom surface of the electrolytic cell (10).

20. The three-electrode cell device according to any one of claims 3 to 10, wherein the second conductive member further comprises a second electrode rod (12), a third wire (21), a third electrode rod (30) and a sixth wire (31), the first conductive member further comprises a fourth wire (23) and a fifth wire (28), one end of the fourth wire (23) and one end of the fifth wire (28) are each fixed to the inner wall (101), and the other end of the fourth wire (23) and the other end of the fifth wire (28) are each located outside the cell (10);

The second electrode rod (12) and the third electrode rod (30) are both detachably arranged in the electrolytic cell (10), the third lead (21) is fixed on the second electrode rod (12), and the sixth lead (31) is fixed on the third electrode rod (30);

The third wire (21) is connected with the counter electrode (14), and the sixth wire (31) is connected with the reference electrode (15);

The third wire (21) is connected or disconnected with the fourth wire (23) and the sixth wire (31) is connected or disconnected with the fifth wire (28) under the condition that the second electrode rod (12) and the third electrode rod (30) are arranged inside the electrolytic cell (10) or are detached from the electrolytic cell (10).

21. The three-electrode cell arrangement according to claim 20, characterized in that the connection structure of the second electrode rod (12) and the cell (10), the connection structure of the third electrode rod (30) and the cell (10), the connection structure of the first electrode rod (11) and the cell (10) are all identical.

22. The three-electrode cell device according to claim 20, wherein the connection structure of the third wire (21) and the fourth wire (23), the connection structure of the sixth wire (31) and the fifth wire (28), the connection structure of the second wire (16) and the first wire (18) are all the same.