KR20180130259A - A oxidation-reduction flow battery system - Google Patents

Abstract

The present invention relates to an oxidation-reduction flow battery system comprising: a membrane; and first and second electrodes which have the membrane formed therebetween. The first electrode comprises: a first porous electrode; a first flow frame supporting the first porous electrode; and a first outer frame disposed on an outer side of the first flow frame. The second electrode comprises: a second porous electrode; a second flow frame supporting the second porous electrode; and a second outer frame disposed on an outer side of the second flow frame. The first outer frame comprises: a first outer frame; a first electrolyte inlet formed in one side of the first outer frame; and a first piezoelectric element disposed adjacent to the first electrolyte inlet. Accordingly, frequency shock generated from piezoelectric elements is applied to precipitates generated in the electrolyte such that the precipitates remaining in the electrolyte can be removed.

Description

[0001] The present invention relates to an oxidation-reduction flow battery cell,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oxidation-reduction flowable battery cell, and more particularly, to an oxidation-reduction flowable battery cell capable of removing precipitates generated in an electrolyte solution.

Renewable energy such as solar power and wind power relies on highly volatile natural energy, so it is difficult to cope with fluctuations in electric power and it is difficult to secure the stability of electric power supply. Therefore, large-capacity power storage technology is needed to accommodate the volatility of renewable energy and to utilize smooth power supply and efficient use of power generation facilities.

Oxidation - Reduced (Redox) Flow Cells are secondary batteries for large - capacity power storage. They have low maintenance costs, operate at room temperature, and can design capacity and power independently.

The oxidation-reduction (redox) flow cell includes a stack in which a plurality of cells are stacked, an electrolyte tank storing a positive electrode electrolyte and a negative electrode electrolyte, and a circulating device such as a pump for supplying and discharging the positive electrode electrolyte and the negative electrode electrolyte stack .

The anode electrolyte and the cathode electrolyte circulate in the stack, causing an oxidation / reduction reaction.

In the oxidation-reduction (redox) flow cell, the higher the temperature of the electrolyte is, the better the reaction rate is, depending on the physical properties of the electrochemical reaction, but the system performance is drastically deteriorated due to vanadium precipitation.

The oxidation-reduction (redox) flow cell is generally a plant facility installed outdoors, and the temperature range of the electrolyte reservoir varies depending on the season and the weather. In such a system, the temperature change affects the electrochemical reaction rate , The reaction rate increases with increasing temperature.

However, there is a problem in that vanadium precipitation occurs in the electrolytic solution at a high temperature of the electrolytic solution, resulting in a sharp decrease in system performance.

Korean Patent Laid-Open No. 10-2013-0038234

SUMMARY OF THE INVENTION It is an object of the present invention to provide an oxidation-reduction flowable battery cell capable of removing precipitates generated in an electrolytic solution.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to solve the above-mentioned problems, the present invention provides a membrane- And a first electrode portion and a second electrode portion positioned between the membrane and the first electrode portion, the first electrode portion including a first porous electrode; A first flow frame supporting the first porous electrode; And a first outer frame portion located outside the first flow frame, wherein the second electrode portion includes: a second porous electrode; A second flow frame for supporting the second porous electrode; And a second outer frame part located outside the second flow frame, wherein the first outer frame part comprises: a first outer frame; A first electrolyte inlet located at one side of the first outer frame; And a first piezoelectric element positioned adjacent to the first electrolyte injection port.

According to another aspect of the present invention, the first outer frame portion may include: a first electrolyte outlet located on the other side of the first outer frame; And a second piezoelectric element positioned adjacent to the first electrolyte discharge port.

The first outer frame portion may include a first insertion groove positioned adjacent to the first electrolyte injection hole and a second insertion groove adjacent to the first electrolyte discharge port, And the second piezoelectric element is inserted in the second insertion groove and disposed in the first insertion groove.

The present invention also provides an oxidation-reduction flow cell in which the first flow frame is a cathode flow frame, the first outer frame portion is a cathode outer frame portion, and the first electrolyte is a cathode electrolyte.

Further, the present invention is characterized in that the second outer frame portion comprises: a second outer frame; A second electrolyte inlet located at one side of the second outer frame; A second electrolyte outlet located on the other side of the first outer frame; A third piezoelectric element positioned adjacent to the second electrolyte injection port; And a fourth piezoelectric element positioned adjacent to the first electrolyte discharge port.

The second outer frame portion may include a third insertion groove positioned adjacent to the second electrolyte injection hole and a fourth insertion groove positioned adjacent to the second electrolyte discharge port, And the fourth piezoelectric element is inserted into and disposed in the fourth insertion groove.

The present invention also provides an oxidation-reduction flow cell in which the second flow frame is a cathode flow frame, the second outer frame portion is a cathode outer frame portion, and the second electrolyte is a cathode electrolyte.

The present invention also relates to a membrane comprising: a membrane; And a first electrode portion and a second electrode portion positioned between the membrane and the first electrode portion, the first electrode portion including a first porous electrode; A first flow frame supporting the first porous electrode; And a first outer frame portion located outside the first flow frame, wherein the second electrode portion includes: a second porous electrode; A second flow frame for supporting the second porous electrode; And a second outer frame part located outside the second flow frame, wherein the first flow frame includes: a first electrolyte first moving part located at one side of the first flow frame; And a first piezoelectric element positioned adjacent to the first electrolyte first moving part.

The first flow frame may include: a first electrolyte second moving part located on the other side of the first flow frame; And a second piezoelectric element positioned adjacent to the first electrolyte second moving part.

Further, the present invention is characterized in that the first flow frame includes a first insertion groove located adjacent to the first electrolyte first moving part and a second insertion groove adjacent to the first electrolyte secondary moving part And the first piezoelectric element is inserted in the first insertion groove and the second piezoelectric element is inserted in the second insertion groove.

Further, in the present invention, the first outer frame portion may include: a first outer frame; A first electrolyte inlet located at one side of the first outer frame; And a first electrolyte outlet located on the other side of the first outer frame, wherein the first electrolyte is injected into the first electrolyte injection port, and is transmitted to the first porous electrode through the first electrolyte first moving part Wherein the first electrolyte flows from the first porous electrode to the first electrolyte outlet through the first electrolyte second moving part and the first electrolyte is discharged through the first electrolyte outlet, A reduced flow battery cell is provided.

The second flow frame may further include: a second electrolyte first moving part positioned at one side of the second flow frame; A second electrolyte second moving part positioned on the other side of the second flow frame; A third piezoelectric element positioned adjacent to the second electrolyte first moving part; And a fourth piezoelectric element positioned adjacent to the second electrolyte second moving part.

Further, the present invention is characterized in that the second flow frame includes a third insertion groove positioned adjacent to the second electrolyte first moving part and a fourth insertion groove adjacent to the second electrolyte secondary moving part The third piezoelectric element is inserted in the third insertion groove and the fourth piezoelectric element is inserted in the fourth insertion groove to be disposed in the oxidation-reduction flow battery cell.

Further, the present invention is characterized in that the second outer frame portion comprises: a second outer frame; A second electrolyte inlet located at one side of the second outer frame; And a second electrolyte discharge port located on the other side of the second outer frame, wherein the second electrolyte is injected into the second electrolyte injection port, and is transferred to the second porous electrode through the second electrolyte first transfer section Wherein the second electrolyte flows from the second porous electrode to the second electrolyte discharge port through the second electrolyte second moving part and the second electrolyte flows out through the second electrolyte discharge port, A reduced flow battery cell is provided.

According to the present invention as described above, it is possible to provide a redox battery cell capable of removing precipitates present in the electrolyte solution by applying a frequency impact through a piezoelectric element to a precipitate generated in the electrolyte solution.

Also, it is possible to provide an oxidation-reduction fluid battery cell which improves the charge / discharge characteristics of the cell, removes precipitates generated from the electrolyte solution, and increases efficiency and ensures stable performance.

1 is a schematic view showing an oxidation-reduction flow cell according to the present invention.
2 is a schematic perspective view showing an oxidation-reduction flow cell according to the present invention.
FIG. 3 is a schematic perspective view showing a first outer frame unit according to the present invention, and FIG. 4 is a schematic plan view showing a first outer frame unit according to the present invention.
FIG. 5 is a schematic perspective view showing a second outer frame unit according to the present invention, and FIG. 6 is a schematic plan view showing a second outer frame unit according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. &Quot; and / or "include each and every combination of one or more of the mentioned items. ≪ RTI ID = 0.0 >

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" And can be used to easily describe a correlation between an element and other elements. Spatially relative terms should be understood in terms of the directions shown in the drawings, including the different directions of components at the time of use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing an oxidation-reduction flow cell according to the present invention.

Referring to FIG. 1, an oxidation-reduction flow cell 10 according to the present invention includes a stack 20, an electrolyte tank 30, and an electrolyte circulation unit 40.

The stack 20 is composed of a plurality of oxidation-reduction flow cells 100 (hereinafter referred to as "battery cells"), and the electrolyte tank 30 stores a cathode electrolyte and a cathode electrolyte.

The electrolyte circulation unit 40 supplies the positive electrode electrolyte solution and the negative electrode electrolyte solution of the electrolyte tank 30 to the stack 20 and collects the positive and negative electrode electrolytes used in the stack 20 into the electrolyte tank 30 .

The electrolyte tank 30 may be composed of two chambers 31 and 32 partitioned by a partition 34 and more specifically includes a first chamber 31 for storing a negative electrode electrolyte, And a second chamber 32 for storing the gas.

The electrolyte circulation unit 40 includes a first pipe 41 connecting a lower side of the first chamber 31 and a cathode electrolyte injection port of the stack 20 and a second pipe 41 connecting the cathode electrolyte discharge port of the stack 20 and the first chamber 31, A second pipe 42 connecting the upper side of the first pipe 31 and a first pump 43 installed in the first pipe 41 and circulating the negative electrode electrolyte.

At this time, the negative electrode electrolyte of the first chamber 31 is supplied to the stack 20 through the first pipe 41 to be supplied to the respective battery cells 100, and the negative electrode electrolyte solution Is again returned to the first chamber (31) through the second pipe (42).

The electrolyte circulation unit 40 includes a third pipe 44 connecting a lower side of the second chamber 32 and a positive electrode electrolyte inlet of the stack 20, A fourth pipe 45 connecting the upper side of the second chamber 32 and a second pump 46 installed in the third pipe 44 for circulating the positive electrode electrolyte.

At this time, the anode electrolyte of the second chamber 32 is supplied to the stack 20 through the third pipe 44 and provided to each battery cell 100, The positive electrode electrolytic solution is recovered to the second chamber 32 through the fourth pipe 45.

In the oxidation-reduction flow cell according to the present invention, the anode electrolyte and the cathode electrolyte circulate in the stack 20 to cause an oxidation / reduction reaction, and electricity is generated in this process.

Hereinafter, the oxidation-reduction flowable battery cell according to the present invention will be described in more detail.

2 is a schematic perspective view showing an oxidation-reduction flow cell according to the present invention.

That is, the oxidation-reduction flow cell of FIG. 2 shows one of the plurality of battery cells in the stack 20 of FIG. 1 described above.

Referring to FIG. 2, an oxidation-reduction flow cell 100 (hereinafter referred to as a "battery cell") according to the present invention includes a membrane 110 as an ion exchange membrane, And includes a first electrode unit 120 and a second electrode unit 130.

The first electrode unit 120 includes a first porous electrode 122 and a first flow frame 121 that supports the first porous electrode 122. The second electrode unit 130 includes a second porous electrode 122, And a second flow frame 131 for supporting the porous electrode 132 and the second porous electrode 132.

The first electrode unit 120 includes a first outer frame unit 140 positioned on the outer side of the first flow frame 121 and the second electrode unit 120 is connected to the second flow frame 121. [ And a second outer frame part 140 located outside the first outer frame part 131.

The first electrode unit 120 may include an anode electrode (not shown) positioned between the first flow frame 121 and the first outer frame unit 140 The second electrode unit 130 may include a cathode electrode (not shown) positioned between the second flow frame 131 and the second outer frame unit 150.

In this case, the first flow frame 121 may be a positive flow frame, and the second flow frame 131 may be a negative flow frame.

In this case, the first outer frame part 140 may be a cathode outer frame part, and the second outer frame part 140 may be a cathode outer frame part.

The flow frames 121 and 131 may be formed of a material such as polypropylene (PP), polyethylene (PE), high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), polystyrene polyethylene terephthalate, polyvinyl chloride (PVC), and epoxy. However, the present invention is not limited to the types of the flow frames 121 and 131.

In addition, the first porous electrode 122 and the second porous electrode 132 may be made of carbon felt, and the anode electrode and the cathode electrode may be graphite. However, in the present invention, .

Hereinafter, the first outer frame unit and the second outer frame unit according to the present invention will be described in detail.

FIG. 3 is a schematic perspective view showing a first outer frame unit according to the present invention, and FIG. 4 is a schematic plan view showing a first outer frame unit according to the present invention.

At this time, as described above, the first outer frame portion may be the anode outer frame portion.

2, 3 and 4, the first outer frame part 140 according to the present invention includes a first outer frame 141; A first electrolyte inlet 142a located at one side of the first outer frame 141 and a first electrolyte outlet 142b located at the other side of the first outer frame 141.

The first electrolyte may be a positive electrode electrolyte, that is, the positive electrode electrolyte may be injected into the first electrolyte inlet 142a and discharged to the first electrolyte outlet 142b.

The first outer frame 140 according to the present invention includes a piezoelectric element 143 located in a predetermined region of the first outer frame 141. Specifically, A first piezoelectric element 143a positioned adjacent to the first electrolyte injection port 142a and a second piezoelectric element 143b positioned adjacent to the first electrolyte discharge port 142b.

3, it is preferable that the piezoelectric element 143 is disposed in the insertion groove 144 located in a certain region of the first outer frame 141.

That is, the insertion groove 144 includes a first insertion groove 144a positioned adjacent to the first electrolyte injection hole 142a and a second insertion groove 144b positioned adjacent to the first electrolyte discharge hole 142b. And the first piezoelectric element 143a is inserted into the first insertion groove 144a and the second piezoelectric element 143b is inserted into the second insertion groove 144b, .

Therefore, in the present invention, the first piezoelectric element 143a is inserted into the first insertion groove 144a and the second piezoelectric element 143b is inserted into the second insertion groove 144b , The space occupied by the piezoelectric element in the first outer frame 141 can be minimized or eliminated at all.

The first electrolyte inlet 142a and the first piezoelectric element 143a may be spaced apart from each other by a length W1 and the first electrolyte outlet 142b and the second piezoelectric element 143b may be spaced apart from each other by W2 And W1 and W2 are preferably in the range of 0 to 200 mm.

In this case, the present invention may further include a power supply for supplying power to the piezoelectric element.

That is, when power is supplied to the piezoelectric element by the power supply unit, a high frequency is generated in the piezoelectric element, and the frequency impact is transmitted to the first electrolyte inlet 142a and the first electrolyte outlet 142b .

At this time, in the process of passing the first electrolyte solution, for example, the anode electrolyte through the first electrolyte inlet 142a and the first electrolyte outlet 142b, the high frequency impact caused by the piezoelectric element is transmitted to the cathode electrolyte And the frequency impact is applied to a precipitate contained in the positive electrode electrolytic solution, for example, a vanadium precipitate, whereby the precipitate becomes fine in the form of particles.

Therefore, due to miniaturization of the precipitate, it is possible to prevent the mass transfer from being degraded due to the decrease in the activation area of the porous electrode.

That is, according to the present invention, it is possible to provide a redox battery cell capable of removing precipitates present in the positive electrode electrolyte by applying a frequency impact to the precipitate generated in the positive electrode electrolyte through the piezoelectric element.

Also, it is possible to provide an oxidation-reduction fluid battery cell which improves the charge / discharge characteristics of the cell, removes precipitates generated in the positive electrode electrolyte, and increases efficiency and ensures stable performance.

FIG. 5 is a schematic perspective view showing a second outer frame unit according to the present invention, and FIG. 6 is a schematic plan view showing a second outer frame unit according to the present invention.

2, 5 and 6, the second outer frame unit 150 according to the present invention includes a second outer frame 151; A second electrolyte inlet 152a located at one side of the second outer frame 151 and a second electrolyte outlet 152b located at the other side of the second outer frame 151. [

The second electrolyte may be a negative electrode electrolyte, that is, the negative electrode electrolyte may be injected into the second electrolyte inlet 152a and discharged to the second electrolyte outlet 152b.

The second outer frame unit 150 according to the present invention includes a piezoelectric element 153 positioned in a predetermined region of the second outer frame 151. Specifically, A third piezoelectric element 153a positioned adjacent to the second electrolyte injection port 152a and a fourth piezoelectric element 153b positioned adjacent to the second electrolyte discharge port 152b.

5, it is preferable that the piezoelectric element 153 is disposed in the insertion groove 154 located in a predetermined region of the second outer frame 151.

That is, the insertion groove 154 has a third insertion groove 154a positioned adjacent to the second electrolyte injection hole 152a and a fourth insertion groove 154b positioned adjacent to the second electrolyte discharge hole 152b. The third piezoelectric element 153a may be inserted into the third insertion groove 154a and the fourth piezoelectric element 153b may be inserted into the fourth insertion groove 154b, .

Therefore, in the present invention, the third piezoelectric element 153a is inserted into the third insertion groove 154a, and the fourth piezoelectric element 153b is inserted into the fourth insertion groove 154b , The space occupied by the piezoelectric element in the second outer frame 151 can be minimized or eliminated at all.

The second electrolyte inlet 152a and the third piezoelectric element 153a may be spaced apart from each other by a length of W3 and the second electrolyte outlet 152b and the fourth piezoelectric element 153b may be positioned at W4 And W3 and W4 are preferably in the range of 0 to 200 mm.

In this case, the present invention may further include a power supply for supplying power to the piezoelectric element.

That is, when power is supplied to the piezoelectric element by the power supply unit, a high frequency is generated in the piezoelectric element, and the frequency impact is transmitted to the second electrolyte inlet 152a and the second electrolyte outlet 152b .

At this time, in the process of passing the second electrolyte, for example, the cathode electrolyte through the second electrolyte inlet 152a and the second electrolyte outlet 152b, the high frequency impact caused by the piezoelectric element is transmitted to the cathode electrolyte And the frequency impact is applied to the precipitate contained in the negative electrode electrolyte, whereby the precipitate is made fine in the form of particles.

Therefore, due to miniaturization of the precipitate, it is possible to prevent the mass transfer from being degraded due to the decrease in the activation area of the porous electrode.

That is, according to the present invention, it is possible to provide a redox battery cell capable of removing precipitates present in the positive electrode electrolyte by applying a frequency impact to the precipitate generated in the positive electrode electrolyte through the piezoelectric element.

Also, it is possible to provide an oxidation-reduction fluid battery cell which improves the charge / discharge characteristics of the cell, removes precipitates generated in the positive electrode electrolyte, and increases efficiency and ensures stable performance.

2, the battery cell 100 according to the present invention includes a membrane 110 as an ion exchange membrane, a first electrode unit 120 disposed between the membrane 110 and the membrane 110, And the second electrode unit 130. The first electrode unit 120 includes a first flow frame 121 located at one side of the membrane 110 and a second flow frame 121 located at the other side of the membrane 110 And the second flow frame 131 is located.

In this case, the first flow frame 121 may be a positive flow frame, and the second flow frame 131 may be a negative flow frame.

2, the first flow frame 121 includes a first electrolyte first moving part 123a located at one side of the first flow frame 121 and a second electrolyte moving part 123b positioned at one side of the first flow frame 121, And a first electrolyte second moving part 123b positioned on the other side of the second electrolyte moving part 123b.

At this time, the first electrolyte may be a positive electrode electrolyte.

That is, in the present invention, the positive electrode electrolyte is injected into the first electrolyte injection port 142a, is transmitted to the first porous electrode 122 through the first electrolyte first moving part 123a, The positive electrode electrolyte flowing from the porous electrode 122 is transferred to the first electrolyte discharge port 142b through the first electrolyte second moving part 123b and finally the positive electrode electrolyte is discharged through the first electrolyte discharge port 142b ). ≪ / RTI >

2, the second flow frame 131 includes a second electrolyte first moving part 133a positioned at one side of the second flow frame 131 and a second electrolyte first moving part 133b positioned at one side of the second flow frame 131. [ And a second electrolyte second moving part 133b positioned on the other side of the second electrolyte moving part 133b.

At this time, the first electrolyte may be a negative electrode electrolyte.

That is, in the present invention, the negative electrode electrolyte is injected into the second electrolyte injection port 152a and is transmitted to the second porous electrode 132 through the second electrolyte first moving part 133a, The negative electrode electrolyte flowing from the porous electrode 132 is transferred to the second electrolyte discharge port 152b through the second electrolyte second moving part 133b and finally the negative electrode electrolyte is discharged through the second electrolyte discharge port 152b ). ≪ / RTI >

Although not shown in the drawing, the first flow frame 121 according to the present invention includes a piezoelectric element (not shown) positioned in a certain region of the first flow frame 121, and specifically, (Not shown) includes a first piezoelectric element (not shown) positioned adjacent to the first electrolyte first moving part 123a and a second piezoelectric element (not shown) positioned adjacent to the first electrolyte second moving part 123b. (Not shown).

In addition, it is preferable that the piezoelectric element (not shown) is disposed in an insertion groove (not shown) located in a certain region of the first flow frame 121.

The piezoelectric element is disposed in the first flow frame 121 as described above because the piezoelectric element is disposed in the first outer frame 141 shown in Figs. 2, 3, and 4, and therefore, Is omitted.

Although not shown in the drawing, the second flow frame 131 according to the present invention includes a piezoelectric element (not shown) positioned in a predetermined region of the second flow frame 131, and specifically, (Not shown) is disposed between a third piezoelectric element (not shown) positioned adjacent to the second electrolyte first moving part 133a and a third piezoelectric element (not shown) positioned adjacent to the second electrolyte second moving part 133b. (Not shown).

It is preferable that the piezoelectric element (not shown) is disposed in an insertion groove (not shown) located in a certain region of the second flow frame 131.

Since the piezoelectric element is disposed in the second flow frame 131 as described above, the piezoelectric element is disposed in the second outer frame 151 shown in Figs. 2, 5, and 6, Is omitted.

As described above, the present invention provides an oxidation-reduction flowable battery cell capable of removing precipitates present in the electrolyte solution by applying a frequency impact through a piezoelectric element to a precipitate generated in the electrolyte solution of the positive electrode electrolyte solution or the negative electrode electrolyte solution .

Also, it is possible to provide an oxidation-reduction fluid battery cell which improves the charge / discharge characteristics of the cell, removes precipitates generated from the electrolyte solution, and increases efficiency and ensures stable performance.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

Claims (14)

Membrane; And
And a first electrode portion and a second electrode portion positioned with the membrane therebetween,
The first electrode portion may include a first porous electrode; A first flow frame supporting the first porous electrode; And a first outer frame portion located outside the first flow frame,
The second electrode portion may include a second porous electrode; A second flow frame for supporting the second porous electrode; And a second outer frame portion located outside the second flow frame,
The first outer frame portion includes a first outer frame; A first electrolyte inlet located at one side of the first outer frame; And a first piezoelectric element positioned adjacent to the first electrolyte injection port. The method according to claim 1,
The first outer frame part may include a first electrolyte discharge port located on the other side of the first outer frame; And a second piezoelectric element positioned adjacent to the first electrolyte discharge port. 3. The method of claim 2,
Wherein the first outer frame portion includes a first insertion groove positioned adjacent to the first electrolyte injection hole and a second insertion groove adjacent to the first electrolyte discharge hole,
Wherein the first piezoelectric element is inserted in the first insertion groove and the second piezoelectric element is inserted in the second insertion groove. 4. The method according to any one of claims 1 to 3,
Wherein the first flow frame is a positive flow frame, the first outer frame portion is a positive outer frame portion, and the first electrolyte is a positive electrode electrolyte. The method according to claim 1,
The second outer frame portion includes a second outer frame; A second electrolyte inlet located at one side of the second outer frame; A second electrolyte outlet located on the other side of the first outer frame; A third piezoelectric element positioned adjacent to the second electrolyte injection port; And a fourth piezoelectric element positioned adjacent to the first electrolyte discharge port. 6. The method of claim 5,
Wherein the second outer frame portion includes a third insertion groove adjacent to the second electrolyte injection hole and a fourth insertion groove adjacent to the second electrolyte discharge hole,
Wherein the third piezoelectric element is inserted in the third insertion groove and the fourth piezoelectric element is inserted in the fourth insertion groove. The method according to claim 5 or 6,
Wherein the second flow frame is a cathode flow frame, the second outer frame portion is a cathode outer frame portion, and the second electrolyte is a negative electrode electrolyte. Membrane; And
And a first electrode portion and a second electrode portion positioned with the membrane therebetween,
The first electrode portion may include a first porous electrode; A first flow frame supporting the first porous electrode; And a first outer frame portion located outside the first flow frame,
The second electrode portion may include a second porous electrode; A second flow frame for supporting the second porous electrode; And a second outer frame portion located outside the second flow frame,
The first flow frame includes: a first electrolyte first moving part positioned at one side of the first flow frame; And a first piezoelectric element positioned adjacent to the first electrolyte first moving part. 9. The method of claim 8,
The first flow frame may include: a first electrolyte second moving part located on the other side of the first flow frame; And a second piezoelectric element positioned adjacent to the first electrolyte second moving part. 10. The method of claim 9,
Wherein the first flow frame includes a first insertion groove located adjacent to the first electrolyte first moving part and a second insertion groove adjacent to the first electrolyte second moving part,
Wherein the first piezoelectric element is inserted in the first insertion groove and the second piezoelectric element is inserted in the second insertion groove. 11. The method of claim 10,
The first outer frame portion includes a first outer frame; A first electrolyte inlet located at one side of the first outer frame; And a first electrolyte outlet located on the other side of the first outer frame,
The first electrolyte is injected into the first electrolyte injection port and is transferred to the first porous electrode through the first electrolyte first moving part and the first electrolyte flowed from the first porous electrode flows through the first electrolyte solution Wherein the first electrolyte is discharged through the first electrolyte outlet through the second moving part, and the first electrolyte is discharged through the first electrolyte outlet. 9. The method of claim 8,
The second flow frame may include: a second electrolyte first moving part positioned at one side of the second flow frame; A second electrolyte second moving part positioned on the other side of the second flow frame; A third piezoelectric element positioned adjacent to the second electrolyte first moving part; And a fourth piezoelectric element positioned adjacent to the second electrolyte second moving part. 13. The method of claim 12,
Wherein the second flow frame includes a third insertion groove located adjacent to the second electrolyte first moving part and a fourth insertion groove adjacent to the second electrolyte secondary moving part,
Wherein the third piezoelectric element is inserted in the third insertion groove and the fourth piezoelectric element is inserted in the fourth insertion groove. 14. The method of claim 13,
The second outer frame portion includes a second outer frame; A second electrolyte inlet located at one side of the second outer frame; And a second electrolyte outlet located on the other side of the second outer frame,
The second electrolyte is injected into the second electrolyte injection port and is transmitted to the second porous electrode through the second electrolyte first moving part and the second electrolyte flowing from the second porous electrode is injected into the second electrolyte And the second electrolyte is discharged through the second electrolyte outlet through the second moving part, and the second electrolyte is discharged through the second electrolyte outlet.

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