TWI623137B - Translucent battery and touch device - Google Patents

Abstract

A light transmissive battery includes a battery unit. Battery unit including graphene The electrode, the metal grid electrode and the light transmissive electrolyte, wherein the metal grid electrode is opposite to the graphene electrode, and the light transmissive electrolyte is located between the graphene electrode and the metal grid electrode. A touch device is also provided.

Description

Light-transmissive battery and touch device

The present invention relates to a battery and an electronic device, and more particularly to a light-transmissive battery and a touch device.

A battery is a device that converts chemical energy into electrical energy for external use. In general, a battery can be roughly divided into a primary cell and a secondary cell. The primary battery is a disposable battery that can only be discharged and cannot be charged. Therefore, the primary battery can only be discarded after the battery is exhausted. In contrast, the secondary battery can be repeatedly used by charging, so the secondary battery is relatively environmentally friendly and relatively convenient in use because it does not need to be frequently replaced. Existing portable devices, such as mobile phones, notebook computers, etc., rely almost entirely on secondary batteries as their power source.

As people's dependence on batteries has increased, scholars and practitioners have devoted themselves to battery research, which has made the development of batteries more mature, and the types of commercially available batteries are increasing. In the increasingly fierce market competition, how to further enhance the competitive advantage of batteries will become the trend of the future.

The present invention provides a light transmissive battery having high light transmittance.

The invention provides a touch device which uses a light-transmissive battery.

A light transmissive battery of the present invention includes a battery unit. The battery unit includes a graphene electrode, a metal grid electrode, and a light transmissive electrolyte, wherein the metal grid electrode is opposite to the graphene electrode, and the light transmissive electrolyte is located between the graphene electrode and the metal grid electrode.

A touch device of the present invention includes a light transmissive battery and a touch element. The light-transmissive battery includes a first transparent cover, a battery unit, a second transparent cover, and a sealant. The first transparent cover has a touch area and a battery area located beside the touch area. The battery unit is located on the first transparent cover and is located in the battery area. The battery unit includes a graphene electrode, a metal grid electrode, and a light transmissive electrolyte, wherein the metal grid electrode is opposite to the graphene electrode, and the light transmissive electrolyte is located between the graphene electrode and the metal grid electrode. The second transparent cover is located in the battery area and covers the battery unit. The frame glue is located between the second transparent cover plate and the first transparent cover plate, and the battery unit is located in a space surrounded by the first transparent cover plate, the second transparent cover plate, and the sealant. The touch component is located on the first transparent cover and located in the touch area.

Based on the above, since the battery unit employs a light-transmitting electrolyte and a light-transmitting electrode, the light-transmitting battery can have high light transmittance. In addition, since the electrodes of the battery unit can transmit light and are suitable as electrodes of the touch element, the touch element and the battery unit can share the material of at least one electrode layer. In addition, due to the stack of battery cells The structure is similar to the laminated structure of the touch component. Therefore, the process and process cost required for the touch device can be reduced by at least one process of sharing the battery unit and the touch component.

The above described features and advantages of the invention will be apparent from the following description.

10, 20, 30‧‧‧ touch devices

12, 12A, 12B, 100, 200, 300‧‧‧ light battery

14, 14A‧‧‧ touch elements

110, 110A‧‧‧ battery unit

112‧‧‧graphene electrode

114‧‧‧Metal grid electrode

116‧‧‧Lighting electrolyte

118‧‧‧First transparent substrate

119‧‧‧Second transparent substrate

142, 142A‧‧‧ first conductive layer

144, 144A‧‧‧ second conductive layer

146, 146A‧‧‧ insulation

148‧‧‧The third transparent substrate

149‧‧‧fourth transparent substrate

210‧‧‧First transparent cover

220‧‧‧Second transparent cover

230‧‧‧Box glue

A1‧‧‧ touch area

A2‧‧‧ battery area

D1‧‧‧ first direction

D2‧‧‧ second direction

E1‧‧‧first electrode

E11‧‧‧First electrode pad

E12‧‧‧First connection

E2‧‧‧second electrode

E21‧‧‧Second electrode pad

E22‧‧‧Second connection

IN‧‧‧ island-shaped insulation pattern

L‧‧‧ line width

MP‧‧‧ grid pattern

S‧‧‧ Space

X‧‧‧Interlaced

1A is a schematic cross-sectional view of a light transmissive battery in accordance with a first embodiment of the present invention.

FIG. 1B is a top plan view of the metal grid electrode of FIG. 1A.

2A is a schematic cross-sectional view of a light transmissive battery in accordance with a second embodiment of the present invention.

2B is a top plan view of the light transmissive battery of FIG. 2A.

3 is a schematic cross-sectional view of a light transmissive battery in accordance with a third embodiment of the present invention.

4A is a schematic cross-sectional view of a touch device in accordance with a first embodiment of the present invention.

4B is a top plan view of the first conductive layer of FIG. 4A.

4C is a top plan view of the second conductive layer of FIG. 4A.

4D is a top plan view of the first conductive layer and the second conductive layer of FIG. 4A.

5 and 6 are touch devices according to second and third embodiments of the present invention, respectively. Schematic diagram of the profile.

FIG. 7 is a cross-sectional view of a touch device in accordance with a third embodiment of the present invention.

FIG. 8 is a cross-sectional view of a touch device in accordance with a fourth embodiment of the present invention.

1A is a schematic cross-sectional view of a light transmissive battery in accordance with a first embodiment of the present invention. FIG. 1B is a top plan view of the metal grid electrode of FIG. 1A. Referring to FIGS. 1A and 1B , the light transmissive battery 100 includes a battery unit 110 . The battery unit 110 includes a graphene electrode 112, a metal grid electrode 114, and a light-transmitting electrolyte 116, wherein the metal grid electrode 114 is opposite to the graphene electrode 112, and the light-transmitting electrolyte 116 is located at the graphene electrode 112 and the metal grid electrode 114. between.

The graphene electrode 112 serves as a negative electrode of the light-transmitting battery 100, and the material graphene has high light transmittance in addition to high thermal conductivity, high mechanical properties, and stable chemical reaction. Therefore, in addition to being suitable for producing the desired electrochemical reaction, the graphene electrode 112 also contributes to the light transmissive battery 100 to achieve a light transmissive or even invisible (transparent) effect.

The metal mesh electrode 114 serves as a positive electrode of the light-transmitting battery 100, and its material includes a metal or an alloy. For example, the material of the metal mesh electrode 114 may include aluminum, lithium, a laminate or alloy of the two, and the like. By forming the above material into a mesh pattern MP having a line width L of a micron order (as shown in FIG. 1B), the visibility of the metal mesh electrode 114 can be reduced. And improve the light transmittance of the metal grid electrode 114. As such, the metal grid electrode 114 also contributes to the light transmissive battery 100 achieving a light transmissive or even invisible effect.

It should be noted that the pattern and size of the mesh pattern MP may be determined according to design requirements, and are not limited to those illustrated in FIG. 1B. For example, the mesh pattern MP may be other polygons in addition to the quadrilateral. Further, the metal mesh electrode 114 is not limited to being constituted by a regular mesh pattern MP. In another embodiment, the metal grid electrode 114 can also be constructed of an irregular grid pattern. The irregular grid pattern may include different patterns of grid patterns but the same size, or the same pattern but different sizes, or different patterns and sizes.

The light-transmitting electrolyte 116 is a conductive medium of the light-transmitting battery 100, which may be a gel electrolyte or a solid electrolyte, but is not limited thereto. The material of the gel electrolyte includes, for example, polyacrylate, polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP), polyacrylonitrile (PAN), and the material of the solid electrolyte includes, for example, polyoxidation. Ethylene (PEO).

In the present embodiment, since the light-transmitting battery 100 employs a light-transmitting electrolyte (light-transmitting electrolyte 116) and a light-transmitting electrode (graphene electrode 112 and metal grid electrode 114), the light-transmitting battery 100 can have high light penetration. rate.

2A is a schematic cross-sectional view of a light transmissive battery in accordance with a second embodiment of the present invention. 2B is a top plan view of the light transmissive battery of FIG. 2A. Referring to FIG. 2A and FIG. 2B, the light-transmitting battery 200 is similar to the light-transmitting battery 100, and similar elements are denoted by the same reference numerals and will not be described again. The main difference between the transparent battery 200 and the transparent battery 100 is that the transparent battery 200 further includes a first transparent cover 210 and a second transparent light. The cover plate 220 and the sealant 230 are opposite to the first transparent cover plate 210. The sealant 230 is located between the second transparent cover plate 220 and the first transparent cover 210, and the battery is The unit 110 is located in the space S surrounded by the first transparent cover 210, the second transparent cover 220, and the sealant 230.

The first transparent cover 210 and the second transparent cover 220 are adapted to protect the battery unit 110, which may be a high mechanical strength substrate or a high tough flexible substrate. For example, the first transparent cover 210 and the second transparent cover 220 may be a glass substrate or a flexible plastic film. In addition, the first transparent cover 210 and the second transparent cover 220 are made of a light transmissive material to maintain the light transmittance of the transparent battery 200. The light-transmitting material generally refers to a material generally having a high transmittance, and is not used to define a material having a transmittance of 100%.

In this embodiment, the graphene electrode 112 may be disposed on the first transparent cover 210, and the metal mesh electrode 114 may be disposed on the second transparent cover 220. The light-transmitting electrolyte 116 may be disposed on the surface of the graphene electrode 112 facing the metal grid electrode 114 or on the surface of the metal grid electrode 114 facing the graphene electrode 112, and then sealing the battery unit 110 through the sealant 230. In the space S, the positive and negative electrodes (refer to the metal mesh electrode 114 and the graphene electrode 112) of the battery unit 110 can be connected to the space S through an unillustrated wire to serve as an output end of the battery unit 110. The frame glue 230 can be selected from a light curing or heat curing material, and the material can be transparent after being cured. Thus, the light-transmitting battery 200 can transmit light as a whole.

3 is a schematic cross-sectional view of a light transmissive battery in accordance with a third embodiment of the present invention. Referring to FIG. 3, the light-transmitting battery 300 is similar to the light-transmitting battery 200, and is similar. The components are denoted by the same reference numerals and will not be described again. The main difference between the light-transmitting battery 300 and the light-transmitting battery 200 is that the battery unit 110A further includes a first light-transmitting substrate 118 and a second light-transmitting substrate 119.

The first light transmissive substrate 118 and the second light transmissive substrate 119 can serve as a carrier substrate for the graphene electrode 112 and the metal mesh electrode 114, respectively. Specifically, the graphene electrode 112 is disposed on the first transparent substrate 118, and the metal mesh electrode 114 is disposed on the second transparent substrate 119, and the graphene electrode 112 and the metal mesh electrode 114 are located at the first transparent The light substrate 118 is between the second light transmissive substrate 119. Under this structure, the first transparent substrate 118 and the second transparent substrate 119 may be made of a light transmissive material to maintain the light transmittance of the transparent battery 300.

The battery unit 110A can be disposed in the space S surrounded by the first transparent cover 210, the second transparent cover 220, and the sealant 230, but is not limited thereto. When the first light-transmitting substrate 118 and the second light-transmitting substrate 119 are made of a flexible light-transmitting substrate, the battery unit 110A can be woundly disposed in the space S (as shown in the right half of FIG. 5). Alternatively, it is foldably disposed in the space S (as shown in the right half of Fig. 6). The flexible transparent substrate can be, for example, a thin glass substrate or a plastic film, but is not limited thereto.

4A is a schematic cross-sectional view of a touch device in accordance with a first embodiment of the present invention. 4B is a top plan view of the first conductive layer of FIG. 4A. 4C is a top plan view of the second conductive layer of FIG. 4A. 4D is a top plan view of the first conductive layer and the second conductive layer of FIG. 4A. Referring to FIGS. 4A-4D , the touch device 10 includes a transparent battery 12 and a touch element 14 . The light-transmissive battery 12 is, for example, FIG. The structure of the medium light-transmissive battery 300, wherein like elements are denoted by the same reference numerals, and will not be described again. The main difference between the transparent battery 12 and the transparent battery 300 is that the first transparent cover 210 of the transparent battery 12 further divides the touch area A1 and the battery area A2 located beside the touch area A1. The battery unit 110A, the second transparent cover 220, the sealant 230, and the touch component 12 are located on the first transparent cover 210, wherein the battery unit 110A, the second transparent cover 220, and the sealant 230 are located in the battery area A2. The touch element 12 is located in the touch area A1.

The touch element 14 includes a first conductive layer 142 , a second conductive layer 144 , and an insulating layer 146 between the first conductive layer 142 and the second conductive layer 144 . The first conductive layer 142, the insulating layer 146, and the second conductive layer 144 are sequentially disposed on the first transparent cover 210, for example. The arrangement may be directly or indirectly disposed (stacked) on the first transparent cover 210 on the first transparent cover 210. For example, as shown in FIG. 4A, the touch element 14 may further include a third transparent substrate 148 and a fourth transparent substrate 149, wherein the first The conductive layer 142 may be disposed on the third transparent substrate 148, and then the third transparent substrate 148 is disposed on the first transparent cover 210. In addition, the second conductive layer 144 may be disposed on the fourth transparent substrate 149, and then the fourth transparent substrate 149 is disposed on the first transparent cover 210, wherein the first conductive layer 142 and the second conductive layer Layer 144 is between third light transmissive substrate 148 and fourth light transmissive substrate 149.

Under the above structure, the touch element 14 has a similar laminated structure as the battery unit 110A (eg, the number of layers is the same, and the materials of the same layer correspond to each other). Since the electrodes of the battery unit 110A (the graphene electrode 112 and the metal grid electrode 114) are permeable to light, As the electrode material of the touch element 14, the battery unit 110A and the touch element 14 can share the material of at least one electrode layer. On the other hand, since the touch element 14 and the battery unit 110A have a similar laminated structure, the process and process required for the touch device 10 can be reduced by at least one process of sharing the battery unit 110A and the touch element 14 . cost.

For example, the first conductive layer 142 on the third transparent substrate 148 and the graphene electrode 112 on the first transparent substrate 118 can be selectively formed by the same process. That is, the first conductive layer 142 and the graphene electrode 112 belong to the same layer and have the same material. In this manner, the touch device 10 of the present embodiment can reduce the total of the first conductive layer 142 and the graphene electrode 112 in addition to the first conductive layer 142 and the graphene electrode 112. The process reduces the process cost of the touch device 10.

For the purpose of touch control, the first conductive layer 142 needs to have a patterned structure. On the other hand, the graphene electrode 112 is used as a negative electrode of the light-transmitting battery 12, so the graphene electrode 112 may be a continuous electrode layer of a single surface. That is to say, the graphene electrode 112 may not have a patterned structure, but is not limited thereto. FIG. 4B illustrates one of the patterned structures of the first conductive layer 142, but is not limited thereto. As shown in FIG. 4B, the first conductive layer 142 may include a plurality of first electrode pads E11 and a plurality of first connecting portions E12, wherein each of the first connecting portions E12 will be adjacent to the two first electrode pads E11 in the first direction. D1 is connected in series to form a plurality of first electrodes E1 arranged in the second direction D2. The first direction D1 and the second direction D2 intersect each other and are, for example, perpendicular to each other, but are not limited thereto.

The second conductive layer 144 on the fourth transparent substrate 149 and the metal mesh electrode 114 on the second transparent substrate 119 can also be selectively formed by the same process. That is, the second conductive layer 144 and the metal mesh electrode 114 belong to the same layer and have the same material. In this manner, the touch device 10 of the present embodiment can share the materials of the second conductive layer 144 and the metal mesh electrode 114 in addition to the second conductive layer 144 and the metal mesh electrode 114. The process is further reduced, thereby reducing the process cost of the touch device 10.

For the purpose of touch control, the second conductive layer 144 needs to have a patterned structure corresponding to the first electrode E1. On the other hand, the metal mesh electrode 114 serves as the positive electrode of the light-transmitting battery 12, so the metal mesh electrode 114 may be a full-surface mesh electrode layer. For example, the metal mesh electrode 114 can adopt the structure shown in FIG. 1B, but is not limited thereto. FIG. 4C illustrates one of the patterned structures of the second conductive layer 144, but is not limited thereto. As shown in FIG. 4C, the second conductive layer 144 may include a plurality of second electrode pads E21 and a plurality of second connecting portions E22, wherein each of the second connecting portions E22 will be adjacent to the two second electrode pads E21 in the second direction. D2 is connected in series to form a plurality of second electrodes E2 arranged in the first direction D1.

As shown in FIG. 4D, the second electrode E2 and the first electrode E1 intersect each other at the first connecting portion E12 and the second connecting portion E22, and the second electrode E2 and the first electrode E1 are transparent to the insulating layer shown in FIG. 4A. 146 is electrically insulated from each other. The insulating layer 146 may be a continuous insulating film and cover the touch area A1 over the entire surface, but is not limited thereto. For example, the insulating layer 146 may also be replaced by a plurality of island-shaped insulating patterns not shown, and the island-shaped insulating patterns may be respectively located at the intersection of the second electrode E2 and the first electrode E1. X, to electrically insulate the second electrode E2 from the first electrode E1.

It should be noted that the patterned structure of the first conductive layer 142 and the second conductive layer 144 may be changed according to design requirements, and is not limited to those illustrated in FIGS. 4B to 4D. For example, in another embodiment, the first electrode E1 and the second electrode E2 may be strip electrodes or electrodes of other shapes, respectively.

In the embodiment, the third light transmissive substrate 148 formed with the first conductive layer 142 is disposed on the touch area A1 of the first transparent cover 210, and the touch device 10 is formed. The first light-transmitting substrate 118 on which the graphene electrode 112 is formed is disposed on the battery region A2 of the first light-transmissive cover 210. Next, an insulating layer 146 is formed on the first conductive layer 142, and a light-transmitting electrolyte 116 is formed on the graphene electrode 112. The insulating layer 146 may be a light-transmissive adhesive layer such as Optical Clear Adhesive (OCA) or Optical Clear Resin (OCR), but is not limited thereto. Further, the insulating layer 146 may be formed on the first conductive layer 142 in a coating manner. On the other hand, the light-transmitting electrolyte 116 may be a gel electrolyte or a solid electrolyte. When the light-transmitting electrolyte 116 is a gel electrolyte, it may be formed on the graphene electrode 112 in a coating manner. Next, the fourth light-transmitting substrate 149 on which the second conductive layer 144 is formed is disposed on the insulating layer 146, and the second light-transmitting substrate 119 on which the metal mesh electrode 114 is formed is disposed on the light-transmitting electrolyte 116. Then, the sealant 230 is formed and the battery unit 110A is covered by the second transparent cover 220 to seal the battery unit 110A to the first transparent cover 210, the second transparent cover 220, and the sealant 230. Space S.

In the present embodiment, as shown in FIG. 4A, the battery unit 110A is flat. It is disposed in the space S enclosed by the first transparent cover 210, the second transparent cover 220, and the sealant 230, but is not limited thereto. As shown in FIG. 5, when the first transparent substrate 118 and the second transparent substrate 119 are made of a flexible transparent substrate, the battery unit 110A can be wound into a cylindrical shape and then disposed in the space S to The capacitance of the light-transmitting battery 12A is increased. As shown in FIG. 6, the battery unit 110A can also be disposed in the space S in a folded manner to increase the capacitance of the light-transmitting battery 12B.

FIG. 7 is a cross-sectional view of a touch device in accordance with a third embodiment of the present invention. Referring to FIG. 7 , the touch device 20 is similar to the touch device 10 , and similar components are denoted by the same reference numerals and will not be described again. The main difference between the touch device 20 and the touch device 10 is that the first conductive layer 142A, the insulating layer 146A and the second conductive layer 144A are directly stacked on the first transparent cover 210, wherein the first conductive layer 142A and the insulating layer For the pattern design and arrangement relationship of the 146A and the second conductive layer 144A, reference may be made to the foregoing, and details are not described herein again.

In this embodiment, the touch element 14A and the battery unit 110A can share the material of at least one electrode layer. For example, the first conductive layer 142A may share the same material as the graphene electrode 112, and the second conductive layer 144A may share the same material as the metal mesh electrode 114. In addition, in the architecture of the present embodiment, the light-transmitting battery 12 can also be replaced with the light-transmitting cells 200, 12A, 12B of FIG. 2A, FIG. 5 or FIG. In addition, the touch element 14A can also adopt a single-layer touch structure, and the single-layer touch structure can share the same material as the graphene electrode 112 or share the same material with the metal mesh electrode 114.

8 is a cross section of a touch device in accordance with a fourth embodiment of the present invention; schematic diagram. Referring to FIG. 8 , the touch device 30 is similar to the touch device 20 , and similar components are denoted by the same reference numerals and will not be described again. The main difference between the touch device 30 and the touch device 20 is that the light-transmissive battery 12A of the touch device 30 adopts the structure of the light-transmitting battery 200 of FIG. 2A. In addition, the second transparent cover 220 is located in the touch area A1 and covers the touch element 14A.

In the structure of the embodiment, the first conductive layer 142A can be disposed on the first transparent cover 210 corresponding to the touch area A1, and the graphene electrode 112 can be disposed on the first transparent cover 210 corresponding to the battery area A2. . In addition, the second conductive layer 144A can be disposed on the second transparent cover 220 corresponding to the touch area A1, and the metal mesh electrode 114 can be disposed on the second transparent cover 220 corresponding to the battery area A2. The insulating layer 146A may be disposed on a surface of the first conductive layer 142A facing the second conductive layer 144A or on a surface of the second conductive layer 144A facing the first conductive layer 142A. On the other hand, the light-transmitting electrolyte 116 may be disposed on the surface of the graphene electrode 112 facing the metal grid electrode 114 or on the surface of the metal grid electrode 114 facing the graphene electrode 112, and then through the sealant 230. The battery unit 110 is sealed in the space S.

Under the above structure, the touch element 14A and the battery unit 110 have a similar laminated structure, for example, the number of layers is the same, and the materials of the same layer correspond to each other. Therefore, in this embodiment, the first conductive layer 142 and the graphene electrode 112 can be formed in the same process, and the second conductive layer 144 and the metal grid electrode 114 are formed in the same process to reduce the need for the touch device 30. Process and process cost.

In summary, since the battery unit uses a light-transmitting electrolyte and a light-transmitting electrode, the light-transmitting battery can have high light transmittance. In addition, due to the battery unit The electrode can be transparent and is suitable as an electrode of the touch element. Therefore, the touch element and the battery unit can share the material of at least one electrode layer. In addition, since the laminated structure of the battery unit is similar to the laminated structure of the touch element, the process and process cost required for the touch device can be reduced by at least one process of sharing the battery unit and the touch element.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

Claims (17)

A light-transmissive battery comprising: a battery unit comprising a graphene electrode, a metal grid electrode and a light-transmissive electrolyte, wherein the metal grid electrode is opposite to the graphene electrode, and the light-transmitting electrolyte is located in the graphene Between the electrode and the metal grid electrode. The light-transmitting battery of claim 1, further comprising a first transparent cover, a second transparent cover, and a sealant, wherein the second transparent cover and the first transparent The cover rubber is located between the second transparent cover and the first transparent cover, and the battery unit is located at the first transparent cover, the second transparent cover, and the sealant. In a space enclosed. The light transmissive battery of claim 2, wherein the first transparent cover plate and the second transparent cover plate are flexible substrates. The light-transmissive battery of claim 2, wherein the graphene electrode is disposed on the first transparent cover, and the metal mesh electrode is disposed on the second transparent cover. The light-transmissive battery of claim 2, wherein the battery unit further comprises a first light-transmitting substrate and a second light-transmitting substrate, wherein the graphene electrode is disposed on the first light-transmitting substrate The metal grid electrode is disposed on the second light transmissive substrate, and the graphene electrode and the metal grid electrode are located between the first light transmissive substrate and the second light transmissive substrate. The light-transmissive battery according to claim 5, wherein the light-transmitting electrolyte is a gel electrolyte or a solid electrolyte. The light-transmissive battery of claim 6, wherein the battery unit is disposed in a winding or folding manner around the first transparent cover, the second transparent cover, and the sealant. In space. A touch device includes: a transparent battery, comprising: a first transparent cover having a touch area and a battery area adjacent to the touch area; a battery unit located at the first transparent cover On the board and in the battery area, the battery unit comprises a graphene electrode, a metal grid electrode and a light-transmissive electrolyte, wherein the metal grid electrode is opposite to the graphene electrode, and the light-transmissive electrolyte is located on the graphite Between the olefin electrode and the metal grid electrode; a second transparent cover plate located in the battery area and covering the battery unit; and a frame glue located at the second transparent cover plate and the first transparent cover Between the boards, the battery unit is located in a space surrounded by the first transparent cover, the second transparent cover, and the sealant; and a touch component is located at the first transparent cover It is located in the touch area. The touch device of claim 8, wherein the touch element comprises a first conductive layer, a second conductive layer, and an insulating layer between the first conductive layer and the second conductive layer. And the first conductive layer, the insulating layer and the second conductive layer are sequentially disposed on the first transparent cover. The touch device of claim 9, wherein the first conductive layer and the graphene electrode belong to the same layer, or the second conductive layer and the metal mesh electrode belong to the same layer, or the first conductive layer The layer belongs to the same layer as the graphene electrode and the second conductive layer and the metal grid electrode belong to the same layer. The touch device of claim 10, wherein the battery unit further comprises a first light transmissive substrate and a second light transmissive substrate, wherein the graphene electrode is disposed on the first light transmissive substrate The metal grid electrode is disposed on the second transparent substrate, and the graphene electrode and the metal grid electrode are located between the first transparent substrate and the second transparent substrate. The component further includes a third transparent substrate and a fourth transparent substrate, the first conductive layer is disposed on the third transparent substrate, and the second conductive layer is disposed on the fourth transparent substrate And the first conductive layer and the second conductive layer are located between the third transparent substrate and the fourth transparent substrate. The touch device of claim 11, wherein the light-transmitting electrolyte is a gel electrolyte or a solid electrolyte. The touch device of claim 12, wherein the battery unit is disposed in a winding or folding manner on the first transparent cover, the second transparent cover, and the sealant. In space. The touch device of claim 11, wherein the insulating layer is a light transmissive adhesive layer. The touch device of claim 8, wherein the second transparent cover is located in the touch area and covers the touch element. The touch device of claim 15, wherein the graphene electrode is disposed on the first transparent cover, and the metal mesh electrode is disposed on the second transparent cover. The component includes a first conductive layer, a second conductive layer, and an insulating layer between the first conductive layer and the second conductive layer, the first conductive layer is disposed on the first transparent cover, and The second conductive layer is disposed on the second transparent cover, wherein the graphene electrode and the first conductive layer belong to the same layer, and the metal mesh electrode and the second conductive layer belong to the same layer. The touch device of claim 8, wherein the first transparent cover and the second transparent cover are flexible substrates.