KR101397524B1 - Power supply apparatus combining flexible fuel cell and flexible battery and method of fabricating thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply unit combining a flexible fuel cell and a battery that can improve the performance of a battery and a fuel cell by combining a flexible battery and a flexible fuel cell, and a method of manufacturing the same. To this end, a power supply device combining a flexible fuel cell and a battery according to an embodiment of the present invention includes a first cathode including a cathode structure for a polymer material and a current collector made of a metal layer deposited on the cathode structure; A flexible lithium ion battery formed on the first cathode; An anode formed on the flexible lithium ion battery, the anode comprising a structure for an anode of a polymer material formed with a hydrogen flow channel and a collector formed of a metal layer deposited on the anode structure; A membrane electrode assembly formed on the anode; And a second cathode formed on the membrane electrode assembly, the cathode structure comprising a polymer material having an air flow channel including air holes and a metal layer deposited on the structure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flexible fuel cell, a flexible battery, and a method of fabricating the flexible fuel cell,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible fuel cell and a battery, and more particularly to a flexible fuel cell and a battery capable of improving performance of a battery and a fuel cell by combining a flexible battery and a flexible fuel cell. And a method of manufacturing the same.

Generally, a power supply is a device that supplies power to various portable devices.

In the case of a flexible battery included in such a power supply device, there is a problem that the performance becomes worse as the deformation is maximized. Further, in the case of a flexible fuel cell, performance is improved as deformation progresses.

Further, in the case of a flexible fuel cell, there is a problem that it has low performance in an initial state (or a state without deformation).

Korean Patent Application No. 10-2010-0041201

It is an object of the present invention to provide a flexible fuel cell used for supplying power to a portable device and a flexible fuel cell that combines the flexible fuel cell with a flexible battery to cope with an initial start or sudden power consumption, And a method of manufacturing the same.

It is another object of the present invention to provide a flexible fuel cell which combines a flexible fuel cell in which the performance is improved (or improved) as the characteristics and deformation of the flexible battery become worse as the deformation is maximized, A flexible fuel cell and a battery which can complement each other, and a method of manufacturing the same.

It is still another object of the present invention to provide a fuel cell capable of partially complementing the low performance of the flexible fuel cell with the performance of the flexible battery in an initial state (or a state without deformation) by combining the flexible battery and the flexible fuel cell A flexible fuel cell and a battery, and a method of manufacturing the same.

A power supply device combining a flexible fuel cell and a battery according to an embodiment of the present invention includes a first cathode including a cathode structure made of a polymer material and a current collector made of a metal layer deposited on the cathode structure; A flexible lithium ion battery formed on the first cathode; An anode formed on the flexible lithium ion battery, the anode comprising a structure for an anode of a polymer material formed with a hydrogen flow channel and a collector formed of a metal layer deposited on the anode structure; A membrane electrode assembly formed on the anode; And a second cathode formed on the membrane electrode assembly, the cathode structure comprising a polymer material having an air flow channel including air holes and a metal layer deposited on the structure.

As one example related to the present specification, the polymer material forming the first cathode, the anode, and the second cathode may be selected from the group consisting of polymethyl methacrylate, poly (vinylchloride), poly Polyurethane, polycarbonate, poly (dimethylsiloxane), polyurethane, polybutadiene, and mixtures of the above elements.

As an example related to the present specification, the cathode structure or the anode structure may be formed by any one of a lift-off process, an injection molding process, and an extrusion molding process As shown in FIG.

According to one embodiment of the present invention, the current collector made of the metal layer deposited on the cathode structure or the anode structure may be formed as a thin metal foil or a metal mesh.

As one example related to the present specification, the flexible lithium ion battery may include lithium cobalt oxide (LiCoO ₂ ), lithium phosphorescent oxynitride (LiPON), and lithium (Li).

As one example related to the present specification, the membrane electrode assembly includes a first cathode, a flexible lithium ion battery, the anode, the membrane electrode assembly, and the membrane electrode assembly, when sandwiched and sandwiched between the anode and the second cathode. The cathode may be formed by bending both ends of the second cathode and compressing them in a state where a tensile stress and a compressive stress are applied.

As one example related to the present specification, the membrane electrode assembly includes a polymer electrolyte membrane having a catalyst layer on its surface, and may include a gas diffusion layer (GDL) on at least one surface of the membrane electrode assembly.

A method of manufacturing a power supply unit combining a flexible fuel cell and a battery according to an embodiment of the present invention includes a lithium cobalt oxide (LiCoO ₂ ) forming a flexible lithium ion battery on a brittle mica substrate, (LiPON), and lithium (Li) sequentially on a substrate; Physically peeling the Mica substrate through the adhesive tape, and removing the peeled Mica substrate; Forming the flexible lithium ion battery from which the Mica substrate is removed on a first cathode including a cathode structure made of a polymer material and a current collector made of a metal layer deposited on the cathode structure; Forming an anode on the flexible lithium ion battery including an anode structure of a polymer material having a hydrogen flow channel formed therein and a current collector made of a metal layer deposited on the anode structure; And a second cathode formed of a polymer material cathode structure having formed thereon an air flow channel including an air hole and a metal layer deposited on the structure, and a membrane electrode assembly located between the anode have.

In one embodiment of the present disclosure, the step of compressing the membrane electrode assembly positioned between the second cathode and the anode comprises compressing the first cathode, the flexible lithium ion battery, the anode, the membrane electrode assembly, 2 cathode can be formed by bending both ends of the cathode and pressing them under the application of tensile stress and compressive stress.

As an example related to the present specification, the air holes may be in the form of a rectangular shape, a rectangular shape, a rhombus shape, a circular shape, an elliptical shape, or a polygonal shape.

A power supply device and a method of manufacturing the same that combine a flexible fuel cell and a battery according to an embodiment of the present invention can supply power to a portable device through a flexible fuel cell in a general case by coupling the flexible battery and the flexible fuel cell, When initial startup or sudden power consumption is required, the portable device can be powered via a flexible battery and / or a fuel cell to perform stable power supply operation.

In addition, the power supply apparatus and the method of manufacturing the same, which combine the flexible fuel cell and the battery according to the embodiment of the present invention, can improve (or improve) the performance as the characteristics and deformation of the flexible battery, By combining the flexible fuel cell, the mutual disadvantages of the flexible battery and the flexible fuel cell can be compensated.

In addition, the power supply device combining the flexible fuel cell and the battery according to the embodiment of the present invention and the method of manufacturing the flexible power fuel cell and the method of manufacturing the flexible fuel cell according to the embodiment of the present invention can be realized by combining the flexible battery and the flexible fuel cell, The low performance of the battery can be partially compensated for by the performance of the flexible battery.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view illustrating a configuration of a power supply apparatus incorporating a flexible fuel cell and a battery according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method of manufacturing a power supply unit combining a flexible fuel cell and a battery according to an embodiment of the present invention.
FIGS. 3 to 5 are cross-sectional views illustrating a method of manufacturing a power supply unit incorporating a flexible fuel cell and a battery according to an embodiment of the present invention.

It is noted that the technical terms used herein are used only to describe specific embodiments and are not intended to limit the invention. It is also to be understood that the technical terms used herein are to be interpreted in a sense generally understood by a person skilled in the art to which the present invention belongs, Should not be construed to mean, or be interpreted in an excessively reduced sense. Further, when a technical term used herein is an erroneous technical term that does not accurately express the spirit of the present invention, it should be understood that technical terms that can be understood by a person skilled in the art are replaced. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

Also, the singular forms "as used herein include plural referents unless the context clearly dictates otherwise. In the present application, the term "comprising" or "comprising" or the like should not be construed as necessarily including the various elements or steps described in the specification, Or may be further comprised of additional components or steps.

Furthermore, terms including ordinals such as first, second, etc. used in this specification can be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or similar elements throughout the several views, and redundant description thereof will be omitted.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It is to be noted that the accompanying drawings are only for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the scope of the present invention with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view illustrating a configuration of a power supply apparatus incorporating a flexible fuel cell and a battery according to an embodiment of the present invention;

1, the power supply apparatus 10 includes a first polydimethylsiloxane (PDMS) 100, a flexible lithium ion battery 200, a second PDMS 300, a membrane electrode assembly (MEA) 400, and a third PDMS 500.

The first PDMS 100, the second PDMS 300, and the third PDMS 500 may use any polymer material such as a thermosetting polymer or a thermoplastic polymer in addition to the PDMS material. Here, the polymer material may be at least one selected from the group consisting of polymethyl methacrylate, polyvinyl chloride (PVC), polycarbonate, PDMS, polystyrene, polyurethane, poly Polybutadiene, and mixtures of the above elements. At this time, the first PDMS 100, the second PDMS 300, and the third PDMS 500 are made of a silicone elastomer having a low Young's modulus. The first PDMS 100, the second PDMS 300 and the third PDMS 500 may be formed of polycarbonate (2.4 GPa), graphite (10 GPa), and stainless steel 190 GPa) and the flexible characteristic of about 360 to 870 KPa, which is excellent in the flexible characteristic (or the ductility characteristic).

In addition, the first PDMS 100 may include a structure (or an end plate structure) corresponding to the first PDMS 100 of the polymer material and a cathode including a current collector formed of a metal layer deposited on the structure (Or the first cathode) may be formed. Here, the current collector may form a first electrode, and the first electrode may be a cathode electrode.

Further, the structure (cathode or anode structure) may be formed by coating a polymer material on a stainless steel substrate, which is a mold, and removing the substrate through a lift-off process, Or may be formed through an injection molding process or an extrusion molding process.

The current collector is formed of the metal layer directly deposited as a thin film on the structure. That is, the current collector is formed of a metal foil. At this time, the metal layer includes a first metal layer and a second metal layer. In addition, the metal layer may be in the form of a film (or a metallic film).

Also, the current collector is formed by sequentially depositing the first metal layer and the second metal layer on the structure by a sputtering method. At this time, the first metal layer and the second metal layer may be formed of at least one selected from the group consisting of Ni, Au, Ag, Pl, Cr, Fe, Mn, (Al), titanium (Ti), lanthanum (La), magnesium (Mg), molybdenum (Mo), zinc (Zn), tin (Sn), carbon (C), and tungsten One or more selected metals or metal oxides of said elements. Preferably, the metal forming the first metal layer may be Ni, and the metal forming the second metal layer may be Au.

The metal layer may be in the form of a metal foil or a metal mesh instead of the thin film through the sputtering. In this case, when the metal layer is a metal mesh, the mesh size of the metal layer may be 10 to 250 mesh.

The thicknesses of the first metal layer and the second metal layer included in the metal layer may be 10 to 5000 nm, respectively.

In addition, before the first metal layer and the second metal layer are deposited on the structure, the structure is ultrasonicated in an ethanol solution for a predetermined time, and in order to improve the adhesion of the first metal layer and the second metal layer, The surface of the first metal layer and the second metal layer may be treated with sandpaper, and then the first metal layer and the second metal layer may be deposited on the structure.

Here, the structure, the metal layer, and the current collector are formed not only in the first PDMS 100 but also in the second PDMS 300 and the third PDMS 500 described later, Can be formed of a material.

The Flexible Lithium Ion Battery (Flexible LIB) 200 is formed on the first PDMS 100.

In addition, the flexible lithium-ion battery 200 is a lithium cobalt oxide (Lithium Cobalt Oxide: LiCoO _2, hereinafter "LiCoO _2" hereinafter) 210, Li phosphor oxynitride (Lithium Phosphorus Oxynitride: LiPON, hereinafter "LiPON Quot;) 220, and lithium (Li) (hereinafter referred to as "Li ") 230.

The LiCoO ₂ 210, LiPON 220, and Li 230 included in the flexible lithium ion battery 200 are sequentially deposited and formed.

The second PDMS 300 is formed on the flexible lithium ion battery 200. Here, the second PDMS 300 enhances the mechanical stability of the flexible lithium ion battery 200.

In addition, the second PDMS 300 may use any polymer material, such as the first PDMS 100 described above.

In addition, the second PDMS 300 may include a structure corresponding to the second PDMS 300 and an anode including a current collector made of a metal layer deposited on the structure. Here, the current collector may form a second electrode, and the second electrode may be an anode electrode. At this time, the structure corresponding to the second PDMS 300 may be formed of a polymer material having a hydrogen flow channel formed therein.

The current collector is formed of the metal layer directly deposited as a thin film on the structure. At this time, the metal layer includes a first metal layer and a second metal layer.

Further, the anode is formed by the following process.

That is, after a polymer material is coated on a stainless steel substrate as a mold, the substrate is removed through a lift-off process to form the structure. Thereafter, the first metal layer and the second metal layer are formed on the structure by any one of a sputtering method, a thermal evaporation method, a chemical vapor deposition method, and an electroless plating method. And sequentially forming the anode including the structure and the current collector. In this case, when the first metal layer and the second metal layer are in the form of a metal mesh, the mesh size is a limit range for oxygen to diffuse through the metal mesh to reach the cathode (or a second cathode described later) If the size is exceeded, permeation of oxygen gas becomes difficult, and the performance of the fuel cell deteriorates, so that it may be 10 to 250 mesh. The anode thus formed includes the hydrogen flow channel having a preset width, depth (or height), and length.

In place of the step of coating the polymeric material on the stainless steel substrate as the template and then removing the substrate through the lift-off process to form the structure, the structure may be formed through an injection molding or extrusion molding process You may.

The membrane electrode assembly (MEA) 400 is formed on the second PDMS 300.

The membrane electrode assembly 400 is positioned between the second PDMS 300 and the third PDMS 500 and pressed between the second PDMS 300 and the third PDMS 500 .

In addition, when the membrane electrode assembly 400 is sandwiched between the second PDMS 300 (or the anode) and the third PDMS 500 (or the second cathode) and is squeezed, Both end portions of the PDMS 100, the flexible lithium ion battery 200, the second PDMS 300, the membrane electrode assembly 400 and the third PDMS 500 are bent so that a tensile stress Or may be formed by pressing in an applied state and / or a state in which a compressive stress is applied.

When the membrane electrode assembly 400 is compressed and assembled (or formed) in a bent state instead of a flat shape, the flexible battery and the fuel Pressure is applied evenly at the center and both ends of the cell, thereby enabling improved electrical contact at both ends spaced farther from the center, thus allowing the flexible battery and the fuel cell to exhibit excellent performance under bending conditions.

In addition, the membrane electrode assembly 400 may include a polymer electrolyte membrane (for example, a polymer membrane (for example, Nafion 212 (trade name)) in which a catalyst layer (including a Pt catalyst having a content of about 0.4 mg / , DuPont), etc.). At this time, the membrane electrode assembly 400 may further include gas diffusion layers (GDLs) formed on at least one surface of the membrane electrode assembly 400. Here, the gas diffusion layer may be SGL 10BC having a thickness of about 420 mu m.

In addition, the membrane electrode assembly 400 may be a membrane electrode assembly coated with only the pure catalyst without the gas diffusion layer (or the gas diffusion layer).

The third PDMS 500 is formed on the membrane electrode assembly 400.

In addition, the third PDMS 500 may use any polymer material, such as the first PDMS 100 described above.

Also, the third PDMS 500 may include a structure corresponding to the third PDMS 500, such as the first PDMS 100 described above, and a current collector made of a metal layer deposited on the structure A cathode (or a second cathode) may be formed. Here, the current collector may form a third electrode, and the third electrode may be a cathode electrode. At this time, the structure corresponding to the third PDMS 500 may be formed of a polymer material having air flow channels including air holes. The air holes are formed through the third PDMS 500 in the form of a rectangle, a rectangle, a rhombus, a circle, an ellipse, or a polygon. In addition, air is transferred to the membrane electrode assembly 400 through the air flow channel including the air holes formed through the third PDMS 500.

The current collector is formed of the metal layer directly deposited as a thin film on the structure. At this time, the metal layer includes a first metal layer and a second metal layer.

Further, the cathode is formed by the following process.

That is, after a polymer material is coated on a stainless steel substrate as a mold, the substrate is removed through a lift-off process to form the structure. Thereafter, a first metal layer and a second metal layer are sequentially deposited on the structure through any one of a sputtering method, a thermal evaporation method, a chemical vapor deposition method, and an electroless plating method to form the first metal layer and the second metal layer, Thereby forming a cathode. In this case, when the first metal layer and the second metal layer are in the form of a metal mesh, the mesh size may be 10 to 250 mesh. The cathode thus formed is open to the air (e.g., air-breathing) without a forced air injection and / or compression system. Also, since the oxygen reduction reaction at the cathode is known to cause a serious loss in activation loss, the open area is set to be wider. In addition, due to the structural stability problem when the open area is enlarged, the open area may be formed entirely on the basis of the clamping force transmitted to the membrane electrode assembly 400 30 to 50% of the area can be set.

Hereinafter, a method of manufacturing a power supply unit combining the flexible fuel cell and the battery according to the present invention will be described in detail with reference to FIGS. 1 to 5. FIG.

FIG. 2 is a flowchart illustrating a method of manufacturing a power supply unit combining a flexible fuel cell and a battery according to an embodiment of the present invention.

First, LiCoO ₂ 210, LiPON 220, and Li 230 are sequentially deposited on a brittle mica substrate (or MICA substrate) 600. Here, the LiCoO ₂ 210, the LiPON 220, and the Li 230 form a flexible lithium ion battery (LIB) 200.

3, the LiCoO ₂ 210, the LiPON 220, and the Li 230 are sequentially deposited on the Mica substrate 600 (S210).

Then, the Mica substrate 600 is subjected to physical delamination using an adhesive tape (sticky tape).

Here, the Mikaka material forming the Mica substrate 600 has a weak-layered crystalline structure. Accordingly, the Mica substrate 600 can easily be peeled off into thin sheets by a weak peeling force. Also, the intermolecular force between the layers of the Mica substrate 600 is weakened during the high temperature annealing process. As a result, the Mica substrate 600 can be easily removed through the adhesive tape without damaging the thin film lithium ion battery (S220).

Then, the flexible lithium ion battery 200 (or the lithium ion battery) 200 from which the Mica substrate 600 is removed is transferred to the first PDMS 100 (or the structure corresponding to the first PDMS 100) (Or a first cathode) including a current collector made of a metal layer deposited on the cathode. Here, the first PDMS 100 may be a polymer material structure (or an end plate structure). The metal layer may be a cathode electrode.

The polymer material may be either a thermosetting polymer or a thermoplastic polymer. That is, the polymer material may be selected from the group consisting of polymethyl methacrylate, polyvinyl chloride (PVC), polycarbonate, polydimethylsiloxane (PDMS), polystyrene, polyurethane, polybutadiene, have. Further, preferably, the polymer material may be PDMS.

For example, as shown in FIG. 4, the flexible lithium ion battery 200 is formed on the first PDMS 100. At this time, the surface bondability of the first PDMS 100 assists the stable settlement of the flexible lithium ion battery 200 (S230).

Then, a second PDMS 300, which is a structure of a polymer material having a hydrogen flow channel formed on the flexible lithium ion battery 200, is formed. Here, the anode may be formed on the flexible lithium ion battery 200. At this time, the anode includes a structure made of a polymer material having the hydrogen flow channel formed therein, and a current collector made of a metal layer deposited on the structure.

For example, as shown in FIG. 5, a second PDMS 300, which is a structure of a polymer material having the hydrogen flow channel formed on the flexible lithium ion battery 200, is formed (S240).

Then, a membrane electrode assembly (MEA) 400 is positioned between the second PDMS 300 and the third PDMS 500, and the membrane electrode assembly (MEA) 400 is compressed to form a flexible battery and a flexible fuel cell Thereby forming a combined power supply 10. Here, the third PDMS 500 may be a polymeric material structure having air flow channels including air holes. Also, a cathode (or a second cathode) may be used in place of the third PDMS 500. In this case, the second cathode includes a polymer material structure having an air flow channel including the air holes, and a current collector made of a metal layer deposited on the structure. The air holes are formed through the third PDMS 500 in the form of a rectangle, a rectangle, a rhombus, a circle, an ellipse, or a polygon.

In addition, when the membrane electrode assembly 400 is sandwiched between the second PDMS 300 (or the anode) and the third PDMS 500 (or second cathode) and is squeezed, Both ends of the flexible lithium ion battery 200, the second PDMS 300, the membrane electrode assembly 400, and the third PDMS 500 are bent to be in a tensile stressed state and / Or may be formed by pressing in a state where a compressive stress is applied (S250).

The second PDMS 300 is formed on the flexible lithium ion battery 200 and then the membrane electrode assembly 300 positioned between the second PDMS 300 and the third PDMS 500 The present invention is not limited to this and the membrane electrode assembly 400 positioned between the second PDMS 300 and the third PDMS 500 may be used to form the power supply 10. [ The compressed PDMS 300, the membrane electrode assembly 400 and the third PDMS 500 are formed on the flexible lithium ion battery 200 (or bonded) )You may.

As described above, in the embodiment of the present invention, the flexible battery and the flexible fuel cell are coupled to each other to supply power to the portable device through the flexible fuel cell. In the case where initial startup or sudden power consumption is required, Power can be supplied to the portable device through a battery and / or a fuel cell to perform stable power supply operation.

As described above, the embodiment of the present invention combines a flexible fuel cell in which the performance is improved (or improved) as the characteristics and the deformation of the flexible battery become worse as the deformation is maximized, and the flexible battery and the flexible fuel The mutual disadvantages of the battery can be compensated.

As described above, in the embodiment of the present invention, the flexible battery and the flexible fuel cell are coupled to each other so that the low performance of the flexible fuel cell in the initial state (or the state without deformation) Can be supplemented.

The present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

10: Power supply 100: 1st PDMS
200: Flexible lithium ion battery 300: Second PDMS
400: membrane electrode assembly (MEA) 500: third PDMS
600: brittle mica substrate 210: LiCoO ₂
220: LiPON 230: Li

Claims (11)

A first cathode including a cathode structure made of a polymer material and a current collector made of a metal layer deposited on the cathode structure;
A flexible lithium ion battery formed on the first cathode;
An anode formed on the flexible lithium ion battery, the anode comprising a structure for an anode of a polymer material formed with a hydrogen flow channel and a collector formed of a metal layer deposited on the anode structure;
A membrane electrode assembly formed on the anode; And
And a second cathode formed on the membrane electrode assembly, the cathode structure comprising a polymeric cathode structure having air flow channels including air holes and a metal layer deposited on the structure,
The cathode structure or the anode structure may be formed,
Wherein the flexible fuel cell is formed through any one of a lift-off process, an injection molding process, and an extrusion molding process.
The method according to claim 1,
The polymer material forming the first cathode, the anode,
(Meth) acrylate, polymethyl methacrylate, poly (vinylchloride), polycarbonate, poly (dimethylsiloxane), polyurethane, polybutadiene, And a mixture of the fuel cell and the fuel cell.
delete The method according to claim 1,
The current collector made of the metal layer deposited on the cathode structure or the anode structure,
Wherein the flexible fuel cell and the battery are formed in the form of a thin metal foil or a metal mesh.
The method according to claim 1,
The flexible lithium ion battery includes:
Wherein the fuel cell comprises a lithium-cobalt oxide (LiCoO ₂ ), a lithium phosphorus oxynitride (LiPON), and a lithium (Li).
The method according to claim 1,
The membrane electrode assembly includes:
Wherein the first cathode, the flexible lithium ion battery, the anode, the membrane electrode assembly, and the second cathode are bent and tensile stress is applied between the anode and the second cathode, And a compressive stress (compressive stress) applied to the flexible fuel cell.
The method according to claim 1,
The membrane electrode assembly includes:
And a polymer electrolyte membrane having a catalyst layer on a surface thereof, wherein the membrane electrode assembly includes a gas diffusion layer (GDL) on at least one surface of the membrane electrode assembly.
Sequentially depositing lithium cobalt oxide (LiCoO ₂ ), lithium phosphorescent oxynitride (LiPON), and lithium (Li) to form a flexible lithium ion battery on a brittle mica substrate;
Physically peeling the Mica substrate through the adhesive tape, and removing the peeled Mica substrate;
Forming the flexible lithium ion battery from which the Mica substrate is removed on a first cathode including a cathode structure made of a polymer material and a current collector made of a metal layer deposited on the cathode structure;
Forming an anode on the flexible lithium ion battery including an anode structure of a polymer material having a hydrogen flow channel formed therein and a current collector made of a metal layer deposited on the anode structure; And
And pressing the membrane electrode assembly positioned between the anode and the cathode, the cathode structure comprising a polymeric cathode structure having an air flow channel including air holes, a metal layer deposited on the structure, and a membrane electrode assembly positioned between the anode A flexible fuel cell and a battery.
The method of claim 8,
The polymer material forming the first cathode, the anode,
Wherein the flexible fuel cell is selected from the group consisting of polymethyl methacrylate, polyvinyl chloride, polycarbonate, polydimethylsiloxane, polyurethane, polybutadiene, and mixtures of the above elements. Way.
The method of claim 8,
The step of compressing the membrane electrode assembly positioned between the second cathode and the anode comprises:
Wherein said flexible fuel cell is formed by bending both ends of said first cathode, said flexible lithium ion battery, said anode, said membrane electrode assembly, and said second cathode in a state where tensile stress and compressive stress are applied, A method of manufacturing a power supply unit incorporating a battery.
The method of claim 8,
The air hole
Wherein the flexible fuel cell is one of a rectangular shape, a rectangular shape, a rhombic shape, a circular shape, an elliptical shape, and a polygonal shape.

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