CN220208976U

CN220208976U - Curlable solar cell

Info

Publication number: CN220208976U
Application number: CN202321078377.XU
Authority: CN
Inventors: 邹建华; 郑海明; 黄世盛; 张涛涛
Original assignee: Truly Opto Electronics Ltd
Current assignee: Truly Opto Electronics Ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-12-19
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses a curled solar cell, which comprises a transparent substrate film and a photovoltaic functional layer, wherein the photovoltaic functional layer is manufactured on one side surface of the transparent substrate film, a first adhesive layer is arranged on one side surface of the transparent substrate film, which is opposite to the photovoltaic functional layer, and a super-elastic layer is arranged on one side surface of the first adhesive layer, which is opposite to the transparent substrate film. The crimpable solar cell has a high recovery elasticity.

Description

Curlable solar cell

Technical Field

The utility model relates to the field of solar cells, in particular to a crimpable solar cell.

Background

With the development of electronic technology, people put higher and higher demands on the cruising ability of various portable electronic products and power emergency plans in emergency or emergency situations-! The only way to solve this problem is to configure a solar cell for various portable electronic products. Generally, when an electronic product of a solar cell wearing type is matched with an external solar cell, the solar cell is arranged on the upper surface of a display screen, for example, a solar display screen is disclosed in Chinese patent No. CN202122490060.4, and comprises a first polarizer and a color film substrate arranged on one surface of the first polarizer, wherein the color film substrate comprises color resistors which are arranged in a matrix; and a solar cell film is arranged on the other surface of the first polaroid, and the orthographic projection of the solar cell film on the color film substrate coincides with the gap between the color resistors. The solar cell film is arranged on one surface of the first polaroid, which is opposite to the color film substrate, and when the color film substrate and the array are basically and relatively attached to form the display screen, the solar cell film is positioned outside the display screen, ambient light can reach the solar cell film without penetrating through the first polaroid, so that the charging efficiency is greatly improved, and meanwhile, the solar cell film corresponds to a gap between the color resistors, the color resistors cannot be covered, and the display quality of the display screen is not affected.

Along with the development of flexible display technology, the solar cell also needs to follow the flexible display screen to achieve the effect that flexible can be buckled together, but the flexible solar cell generally uses the PI film as the substrate for manufacturing the photovoltaic function layer, but the elastic stretching capability of the PI film is insufficient, and after buckling, the deformation of buckling which cannot be recovered often occurs, so that the display look and feel is affected.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a curled solar cell with high recovery elasticity.

The technical problems to be solved by the utility model are realized by the following technical scheme:

the utility model provides a crimpable solar cell, includes transparent substrate film and preparation in photovoltaic functional layer on the one side surface of transparent substrate film, transparent substrate film is dorsad be equipped with first viscose layer on the one side surface of photovoltaic functional layer, first viscose layer dorsad be equipped with super elastomer layer on the one side surface of transparent substrate film.

Further, the super-elastic layer is any one of rubber super-elastic body, gel super-elastic body and polyurethane super-elastic body.

Further, a charging FPC is bound on one side of the photovoltaic functional layer.

Further, the crimpable solar cell comprises a light-transmitting area and a non-light-transmitting area, wherein the non-light-transmitting area surrounds the outside of the light-transmitting area, and the photovoltaic functional layer is arranged in the non-light-transmitting area.

Further, the crimpable solar cell further comprises a frame area, wherein the frame area surrounds the outside of the non-light-transmitting area, and a frame ink layer is arranged in the frame area.

Further, the non-light-transmitting region comprises a first non-light-transmitting region and a second non-light-transmitting region, the first non-light-transmitting region surrounds the light-transmitting region, and the second non-light-transmitting region surrounds the first non-light-transmitting region; the frame area comprises a first frame area and a second frame area, the first frame area is overlapped with the second non-light-transmitting area, and the second frame area surrounds the outside of the first frame area; and the photovoltaic functional layer positioned in the second non-light-transmitting area is overlapped with the orthographic projection of the frame ink layer positioned in the second frame area on the transparent substrate film.

Further, a second adhesive layer is arranged on the surface of one side of the transparent substrate film and the photovoltaic functional layer, which is away from the super-elastomer layer, and a transparent covering film is arranged on the surface of one side of the second adhesive layer, which is away from the transparent substrate film and the photovoltaic functional layer.

Further, a surface hardening layer is formed on one side of the transparent covering film, which faces away from the photovoltaic functional layer.

Further, an optical film layer is plated on the surface of one side of the transparent covering film, which is opposite to the photovoltaic functional layer.

Further, the optical film layer comprises at least one of an anti-reflection film layer, an anti-fingerprint film layer and an anti-glare film layer.

The utility model has the following beneficial effects: according to the curled solar cell, the super elastomer layer is attached to the back surface of the transparent substrate film, the super elastic stretching performance of the super elastomer layer is utilized to drive the transparent substrate film and the photovoltaic functional layer to recover to be smooth after being bent and folded, the whole stretching recovery capacity of the solar cell is improved, and the transparent substrate film is prevented from bending deformation which cannot be recovered after being bent and folded.

Drawings

Fig. 1 is a stacked structure diagram of a rollable solar cell according to the present utility model.

Fig. 2 is a schematic plan view of a rollable solar cell according to the present utility model.

Fig. 3 is a schematic plan view of a non-light-transmitting region in a rollable solar cell according to the present utility model.

Fig. 4 is a schematic plan view of a frame region in a rollable solar cell according to the present utility model.

Fig. 5 is a stacked structure diagram of another rollable solar cell according to the present utility model.

Fig. 6 is a stacked structure diagram of a further rollable solar cell according to the present utility model.

Detailed Description

The present utility model is described in detail below with reference to the drawings and the embodiments, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, or can be communicated between two elements or the interaction relationship between the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

As shown in fig. 1, a rollable solar cell comprises a transparent substrate film 1 and a photovoltaic functional layer 2 formed on one side surface of the transparent substrate film 1, wherein a first adhesive layer 3 is arranged on one side surface of the transparent substrate film 1 facing away from the photovoltaic functional layer 2, and a super elastomer layer 4 is arranged on one side surface of the first adhesive layer 3 facing away from the transparent substrate film 1.

According to the curled solar cell, the super elastomer layer 4 is attached to the back surface of the transparent substrate film 1, the super elastic stretching performance of the super elastomer layer 4 is utilized to drive the transparent substrate film 1 and the photovoltaic functional layer 2 to recover to be smooth after being bent and folded, the whole stretching recovery capacity of the solar cell is improved, and the phenomenon that the transparent substrate film 1 cannot be recovered after being bent and folded is avoided.

The super-elastic body is a high-elastic material with super-elastic stretching capability, can deform under the action of external force, and can quickly recover under the action of self high elasticity when the external force acted on the super-elastic material disappears, and common super-elastic bodies comprise rubber super-elastic bodies, gel super-elastic bodies, polyurethane super-elastic bodies and the like.

In this embodiment, the super-elastic layer 4 is any one of a rubber super-elastic body, a gel super-elastic body and a polyurethane super-elastic body; the transparent substrate film 1 is any one of a PI film, a PE film and a PET film, and is preferably a PI film; the first adhesive layer 3 is any one of OCA glue and OCZ glue, and is preferably OCA glue.

The photovoltaic functional layer 2 may be a P-type photovoltaic device or an N-type photovoltaic device, and the types include, but are not limited to, amorphous silicon thin film photovoltaic devices, gallium arsenide photovoltaic devices, cadmium sulfide CdS or cadmium telluride photovoltaic devices, or solar cells fabricated using a single layer substrate such as CIGS, OPV (organic photovoltaic devices), PSC (perovskite photovoltaic devices) and the like that may be fabricated by TFE packaging processes.

A charging FPC 21 is bound to one side of the photovoltaic functional layer 2, and the charging FPC 21 is used for outputting electric energy generated after the photovoltaic functional layer 2 absorbs sunlight to a lithium battery of the electronic device.

The crimpable solar cell can be matched with a flexible display screen for use, is arranged on the surface of the flexible display screen, is bent and folded along with the flexible display screen, and meets the requirement of flexible display; and the solar cell can also be arranged on conventional equipment with bending and folding requirements as a solar cell of the conventional equipment.

Example two

In this embodiment, the flexible display screen is disposed on a surface of the flexible display screen, so as to be bent and folded along with the flexible display screen, thereby meeting the requirement of flexible display.

As shown in fig. 2 and 5, the rollable solar cell includes a light-transmitting region 100 and a non-light-transmitting region 200, the non-light-transmitting region 200 surrounds the light-transmitting region 100, and the photovoltaic functional layer 2 is disposed in the non-light-transmitting region 200.

When the flexible display screen is used, the light-transmitting area 100 of the flexible solar cell corresponds to the display area of the flexible display screen, the non-light-transmitting area 200 of the flexible solar cell corresponds to the peripheral area of the flexible display screen, the peripheral area of the flexible display screen is shielded by the photovoltaic functional layer 2 in the non-light-transmitting area 200, and sunlight reflected by the peripheral area of the flexible display screen is reduced by utilizing the light absorption characteristic of the photovoltaic functional layer 2 so as to form an anti-glare frame.

If the light transmittance of the material of the super-elastic layer 4 is high, the light-transmitting region 100 and the non-light-transmitting region 200 may be covered on the front surface, and if the light transmittance of the material is low, a hollowed-out frame shape may be adopted to cover only the non-light-transmitting region 200 and avoid the light-transmitting region 100.

Example III

As an optimization scheme of the second embodiment, in this embodiment, as shown in fig. 2 and 5, the rollable solar cell further includes a frame area 300, the frame area 300 surrounds the non-light-transmitting area 200, and a frame ink layer 5 is disposed in the frame area 300.

When the flexible display screen is used, the non-light-transmitting area 200 and the frame area 300 of the flexible display screen correspond to the peripheral area of the flexible display screen, and the frame area 300 is additionally arranged on the basis of the non-light-transmitting area 200, so that on one hand, the frame width can be increased, and on the other hand, the light transmittance of the photovoltaic functional layer 2 can be further reduced by utilizing the frame ink layer 5 on the frame area 300.

The frame ink layer 5 may be disposed on a surface of the transparent substrate film 1 opposite to the photovoltaic functional layer 2, or may be disposed on a surface of the transparent substrate film 1 opposite to the photovoltaic functional layer 2 and around the photovoltaic functional layer 2, or may be disposed above the photovoltaic functional layer 2, and separated from the photovoltaic functional layer 2 by a transparent dielectric layer 6.

As shown in fig. 3 and 4, the non-light-transmitting region 200 includes a first non-light-transmitting region 201 and a second non-light-transmitting region 202, the first non-light-transmitting region 201 surrounding the light-transmitting region 100, and the second non-light-transmitting region 202 surrounding the first non-light-transmitting region 201; the frame area 300 includes a first frame area 301 and a second frame area 302, where the first frame area 301 coincides with the second non-light-transmitting area 202, and the second frame area 302 surrounds the first frame area 301; the photovoltaic functional layer 2 located in the second non-light-transmitting region 202 coincides with the orthographic projection of the border ink layer 5 located in the second border region 302 onto the transparent substrate film 1.

Example IV

As an optimization scheme of the first embodiment, the second embodiment or the third embodiment, in this embodiment, as shown in fig. 6, a second adhesive layer 7 is disposed on a surface of the transparent substrate film 1 and the photovoltaic functional layer 2 facing away from the super-elastic body layer 4, and a transparent covering film 8 is disposed on a surface of the second adhesive layer 7 facing away from the transparent substrate film 1 and the photovoltaic functional layer 2.

The transparent cover film 8 mainly protects the photovoltaic functional layer 2 from dust or scratches.

In this embodiment, the transparent cover film 8 is any one of a PI film, a PE film, and a PET film, and is preferably a PET film; the second adhesive layer 73 is either OCA adhesive or OCZ adhesive, and is preferably OCA adhesive.

In this embodiment, the frame ink layer 5 is disposed on a side surface of the transparent cover film 8 facing the transparent substrate film 1.

The surface hardening layer 81 is formed on one side of the transparent covering film 8, which is opposite to the photovoltaic functional layer 2, and the upper surface of the transparent covering film 8 is hardened, so that the upper surface layer of the transparent covering film 8 is increased in density and increased in hardness, and the photovoltaic functional layer 2 is better protected.

The transparent covering film 8 is coated with an optical film layer 9 on the surface of one side, facing away from the photovoltaic functional layer 2, so as to improve the optical performance of the surface of the transparent covering film 8, the optical film layer 9 comprises at least one of an anti-reflection film layer, an anti-fingerprint film layer and an anti-glare film layer, the anti-reflection film layer (AR film layer) is used for reducing the reflectivity of the surface of the transparent covering film 8 and improving the visibility, the anti-fingerprint film layer (AF film layer) is used for reducing the surface energy of the surface of the transparent covering film 8 and avoiding the surface from being stained with fingerprints and water drops, and the anti-glare film layer (AG film layer) is used for reducing the glare of the surface of the transparent covering film 8.

Finally, it should be noted that the foregoing embodiments are merely for illustrating the technical solution of the embodiments of the present utility model and are not intended to limit the embodiments of the present utility model, and although the embodiments of the present utility model have been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the embodiments of the present utility model may be modified or replaced with the same, and the modified or replaced technical solution may not deviate from the scope of the technical solution of the embodiments of the present utility model.

Claims

1. The utility model provides a crimpable solar cell, includes transparent substrate film and preparation in photovoltaic functional layer on the one side surface of transparent substrate film, its characterized in that, transparent substrate film is dorsad be equipped with first viscose layer on the one side surface of photovoltaic functional layer, first viscose layer dorsad be equipped with super elastomer layer on the one side surface of transparent substrate film.

2. The rollable solar cell according to claim 1, wherein the superelastic layer is any one of a rubber-based superelastic body, a gel-based superelastic body, and a polyurethane-based superelastic body.

3. The rollable solar cell of claim 1, wherein the photovoltaic functional layer has a charged FPC bound to one side.

4. The rollable solar cell according to claim 1, comprising a light transmissive region and a non-light transmissive region, the non-light transmissive region surrounding the light transmissive region, the photovoltaic functional layer being disposed within the non-light transmissive region.

5. The solar cell of claim 4, further comprising a border region surrounding the non-light transmissive region, wherein a border ink layer is disposed within the border region.

6. The rollable solar cell of claim 5, wherein the non-light transmissive region includes a first non-light transmissive region surrounding the light transmissive region and a second non-light transmissive region surrounding the first non-light transmissive region; the frame area comprises a first frame area and a second frame area, the first frame area is overlapped with the second non-light-transmitting area, and the second frame area surrounds the outside of the first frame area; and the photovoltaic functional layer positioned in the second non-light-transmitting area is overlapped with the orthographic projection of the frame ink layer positioned in the second frame area on the transparent substrate film.

7. The rollable solar cell according to claim 1, wherein a second adhesive layer is provided on a side surface of the transparent substrate film and the photovoltaic functional layer facing away from the super elastomer layer, and a transparent cover film is provided on a side surface of the second adhesive layer facing away from the transparent substrate film and the photovoltaic functional layer.

8. The rollable solar cell of claim 7, wherein the transparent cover film is formed with a surface hardened layer on a side facing away from the photovoltaic functional layer.

9. The rollable solar cell according to claim 7 or 8, wherein the transparent cover film is coated with an optical film layer on a side surface facing away from the photovoltaic functional layer.

10. The rollable solar cell of claim 9, wherein the optical film layer includes at least one of an anti-reflection film layer, an anti-fingerprint film layer, and an anti-glare film layer.