CN220856593U - Photovoltaic cell assembly and photovoltaic equipment - Google Patents
Photovoltaic cell assembly and photovoltaic equipment Download PDFInfo
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Abstract
The application provides a photovoltaic cell assembly and a photovoltaic device, wherein the photovoltaic cell assembly comprises: the solar cell comprises N cell pieces, wherein each cell piece comprises a conductive structure and a conductive layer which is positioned on the first surface of the conductive structure and is electrically connected with the first surface of the conductive structure, the conductive layer in the ith cell piece is electrically connected with the second surface of the conductive structure in the (i+1) th cell piece, the light incident surface of the photovoltaic cell component is parallel to the section of the cell piece and is parallel to the plane where the length direction of the cell piece is positioned, and the conductive layer is a light-transmitting conductive layer, so that sunlight can be transmitted through the conductive layer, and the waste of the sunlight is inhibited. The conducting structures in the N battery pieces are electrically connected in sequence through the conducting layers, no grid line is needed, and dead zones are reduced. The conductive layer covers the first surface of the conductive structure and the second surface of the adjacent conductive structure, and the thickness of the conductive layer can be smaller, so that the gaps of the battery pieces are smaller, the size of the assembly and the dead zone can be reduced, and meanwhile, the number of the battery pieces can be more.
Description
Technical Field
The application relates to the technical field of photovoltaic cells, in particular to a photovoltaic cell assembly and a preparation method of the photovoltaic cell assembly.
Background
Photovoltaic power generation is an important new energy power generation technology, at present, a main photovoltaic battery is a crystalline silicon battery, and a corresponding photovoltaic battery assembly is formed by connecting crystalline silicon conductive structures in series and parallel through grid lines and bus bars.
With the rapid development of photovoltaic power generation technology and the expansion of application range, the requirements of various performance parameters of photovoltaic battery components are also increasing. Therefore, optimization of photovoltaic cell assemblies has become an important point of research for those skilled in the art.
Disclosure of utility model
In view of the above, the application provides a photovoltaic cell assembly, which comprises the following steps:
a photovoltaic cell assembly comprising:
The battery pieces comprise a conductive structure and a conductive layer, wherein the conductive layer is positioned on the first surface of the conductive structure and is electrically connected with the conductive structure, the conductive layer in the ith battery piece in the N battery pieces is electrically connected with the second surface of the conductive structure in the (i+1) th battery piece, and N is more than or equal to 1, and i is more than or equal to 1 and less than or equal to N-1; the first surface and the second surface of the conductive structure are opposite;
The photovoltaic cell comprises a photovoltaic cell component, a solar cell, a conductive layer, a light incident surface, a light emitting surface and a light emitting surface, wherein the conductive layer is a light-transmitting conductive layer, the light incident surface of the photovoltaic cell component is parallel to the section of the cell, and is parallel to a plane where the length direction of the cell is located.
Optionally, the conductive layer is a metal layer, and the thickness of the conductive layer ranges from 5nm to 20nm, including the end point value.
Optionally, the material of the conductive layer is at least one of ITO, AZO, FTO, IWO, snO a2 and In2O 3.
Optionally, the width of the photovoltaic cell assembly ranges from 30 μm to 500 μm, including the end point values.
Optionally, the length of the photovoltaic cell assembly is 166mm or 182mm or 210mm.
Optionally, the conductive structure includes a P-type region, a PN junction region, and an N-type region, where the conductive layer is located at a side of the N-type region away from the P-type region and electrically connected to the N-type region.
Optionally, the conductive structure includes a P-type region, a PN junction region, and an N-type region, where the conductive layer is located at a side of the P-type region away from the N-type region and electrically connected to the P-type region.
Optionally, the battery piece is a crystalline silicon battery piece.
A photovoltaic device comprising a photovoltaic cell assembly as described in any of the embodiments above.
Compared with the prior art, the technical scheme of the application has the beneficial effects that:
The photovoltaic cell assembly provided by the application comprises: the battery pieces comprise a conductive structure and a conductive layer, the conductive layer is positioned on the first surface of the conductive structure and is electrically connected with the conductive structure, the conductive layer in the ith battery piece in the N battery pieces is electrically connected with the second surface of the conductive structure in the (i+1) th battery piece, and N is more than or equal to 1, and i is more than or equal to 1 and less than or equal to N-1; the first surface and the second surface of the conductive structure are opposite; the photovoltaic cell comprises a photovoltaic cell component, a conductive layer, a light incident surface, a light emitting surface and a light emitting surface, wherein the conductive layer is a light-transmitting conductive layer, and the light incident surface of the photovoltaic cell component is a plane where the length direction of the cell is located. Because the conducting layer in the photovoltaic cell component is the light-transmitting conducting layer, solar rays can be continuously transmitted through the conducting layer and transmitted to the adjacent conducting structure, so that the waste of sunlight is restrained, and the utilization rate of the sunlight of the photovoltaic cell component is improved.
And, the conductive structures in the N battery pieces in the photovoltaic battery component are electrically connected in sequence through the conductive layers, and the conductive layers in the battery pieces cover the first surface of the conductive structure in the battery piece and the second surface of the conductive structure in the adjacent battery piece, so that the area of the conductive structure is the same as that of the conductive structure, the thickness of the conductive layers can be smaller, the gaps of the battery pieces in the photovoltaic battery component are smaller, and the size of the photovoltaic battery component is reduced. Because the gaps among the battery pieces in the photovoltaic cell assembly are smaller, under the condition that the light incident surface areas of the assemblies are the same, the dead zone in the light incident surface of the photovoltaic cell assembly is smaller, the effective area is larger, the photoelectric conversion efficiency is higher, and under the condition that the sizes of the photovoltaic cell assemblies are the same, the number of the battery pieces in the photovoltaic cell assembly can be larger, so that the voltage of the photovoltaic cell assembly is relatively higher.
In addition, each cell piece in the photovoltaic cell assembly is electrically connected through the conductive layer, the cell piece is of a conductive structure without a grid electrode, and the conductive layer with smaller thickness is used for replacing a grid line in the original photovoltaic cell assembly, so that the area of a dead zone in a light incident surface of the photovoltaic cell assembly is further reduced, the photoelectric conversion efficiency of the photovoltaic cell assembly is improved, and the photoelectric conversion efficiency of the photovoltaic cell assembly is relatively higher.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings required for the description of the embodiments or the prior art will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to the provided drawings without inventive effort to those skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the application, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the application, without affecting the effect or achievement of the objective.
Fig. 1 is a cross-sectional view of a photovoltaic cell module according to the present application on a side in a thickness direction;
Fig. 2 is a cross-sectional view of a side of a photovoltaic cell module according to the present application along a length direction;
FIG. 3 is a schematic view of the angle between solar rays and a photovoltaic cell assembly;
Fig. 4 is a schematic structural diagram of another photovoltaic cell assembly according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another photovoltaic cell assembly according to an embodiment of the present application.
Detailed Description
Embodiments of the present application will now be described more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, that the embodiments shown are merely exemplary, and not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description.
As known from the background art, with the rapid development of photovoltaic power generation technology and the expansion of application range, the requirements of various performance parameters of photovoltaic cell modules are also increasing, wherein the parameters of the photovoltaic cell modules only include the solar light utilization efficiency, the photoelectric conversion efficiency, the voltage of the modules and the like.
At present, the main photovoltaic power generation battery is a crystalline silicon battery, and the band gap of crystalline silicon is about 1.1eV, so that the open-circuit voltage of the crystalline silicon battery is generally about 0.6V-0.7V, and the maximum output working voltage is generally about 0.5V-0.6V. The open-circuit voltage of the photovoltaic cell assembly formed by the crystalline silicon cell is generally about 50V-70V, the maximum output voltage is generally about 60V-65V, and the voltage is lower.
And, above-mentioned photovoltaic cell subassembly is by crystalline silicon cell piece through grid line and converging area carry out effectual series-parallel connection and constitute, generally can exist certain clearance between the battery piece to still owing to the existence of grid line, there is the dead zone of great area, make the sunlight that shines on the photovoltaic cell subassembly can not be fully utilized, reduced the effective utilization of sunlight, influence photovoltaic cell subassembly's photoelectric conversion efficiency.
In addition, the current of the crystalline silicon battery is generally high, so there is a problem of current loss. In order to reduce the current loss as much as possible, when the crystalline silicon cells are connected in series and parallel to form a photovoltaic cell assembly, a higher-level bus cable is required. However, although the current loss is reduced to a certain extent, the cost of the photovoltaic cell device is increased, and the limitation on the wide application of the photovoltaic cell device is not beneficial to the development of the photovoltaic cell assembly.
Based on this, the present application provides a photovoltaic cell assembly, as shown in fig. 1 and 2, fig. 1 is a cross-sectional view of a side of the photovoltaic cell assembly in a thickness direction, and fig. 2 is a cross-sectional view of a side of the photovoltaic cell assembly in a length direction, the photovoltaic cell assembly includes:
The solar cell comprises N cell pieces 10, wherein each cell piece 10 comprises a conductive structure 11 and a conductive layer 12, and the conductive layer 12 is positioned on the first surface of the conductive structure 11 and is electrically connected with the conductive structure 11. In addition, the conductive layer 12 in the ith cell 10 of the N cells 10 is electrically connected with the second surface of the conductive structure 11 in the (i+1) th cell 10, where N is greater than or equal to 1, and i is greater than or equal to 1 and less than or equal to N-1. The first surface of the conductive structure 11 is opposite to the second surface of the conductive structure 11.
The conductive layer 12 is a light-transmitting conductive layer, the light incident surface of the photovoltaic cell assembly is parallel to the cross section of the battery piece 10 and parallel to the plane where the length direction of the battery piece 10 is located, that is, the light incident surface of the photovoltaic cell assembly is composed of the cross sections of the N battery pieces 10 in the length direction, that is, the light incident surface of the photovoltaic cell assembly is composed of the cross sections of the N conductive structures 11 in the length direction and the cross sections of the N conductive layers 12 in the length direction, and the lengths of the photovoltaic cell assembly are equal to the lengths of the conductive structures 11 and the conductive layers 12. The length direction of the battery sheet 10 is also the length of the conductive structure 11 and the conductive layer 12, that is, the length of the photovoltaic cell assembly is also the length of the battery sheet 10. And the arrangement direction of the conductive structures 11 and the conductive layers 12 in the battery sheet 10 is the thickness direction of the battery sheet 10, the thickness of the photovoltaic cell assembly is N times the thickness of the battery sheet 10, and. The longitudinal direction and the thickness direction of the battery sheet 10 are perpendicular to each other.
It should be noted that, since the conductive layer 12 is used to electrically connect the conductive structures 11 in each of the battery pieces 10, the conductive layer 12 needs to have conductive capability. In addition, when sunlight irradiates the photovoltaic cell, the transmission direction of the solar rays may not always be perpendicular to the light incident surface of the photovoltaic cell assembly, and may be inclined. As shown in fig. 3, when the inclination angle θ exists between the solar ray and the light incident surface of the photovoltaic cell assembly, if the conductive layer is of an opaque structure, part of the solar ray is blocked by the conductive layer, and thus the solar ray is wasted. In the application, the conductive layer 12 is a light-transmitting conductive layer, so that solar rays can be continuously transmitted through the conductive layer 12 and transmitted to the adjacent conductive structure 11, thereby inhibiting the waste of sunlight and improving the utilization rate of sunlight of the photovoltaic cell assembly.
In addition, in the embodiment of the present application, the photovoltaic cell assembly includes N cells 10, the conductive layer 12 in the cells 10 is electrically connected to the first surface of the conductive structure 11, and the conductive layer 12 in the ith cell 10 in the N cells 10 is electrically connected to the second surface of the conductive structure 11 in the (i+1) th cell 10, so that the conductive structure 11 in the ith cell 10 is electrically connected to the conductive structure 11 in the (i+1) th cell 10 through the conductive layer 12, and further the conductive structures 11 in the N cells 10 are sequentially electrically connected through the conductive layer 12. And the conductive layer 12 in the cell 10 of the photovoltaic cell assembly is electrically connected with the first surface of the conductive structure 11 and is electrically connected with the second surface of the conductive structure 11 in the adjacent cell 10, namely, the conductive layer 11 in the cell 10 covers the first surface of the conductive structure 11 in the same cell 10 and the second surface of the conductive structure 11 in the adjacent cell, so that the area of the conductive layer is the same as that of the conductive structure 11, and the thickness of the conductive layer can be smaller, so that the gap between each cell 10 in the photovoltaic cell assembly is smaller, and the size of the photovoltaic cell assembly is reduced.
Compared with the prior art, the photovoltaic cell assembly provided by the application has smaller dead zone in the light incident surface of the photovoltaic cell assembly, larger effective area and higher photoelectric conversion efficiency under the condition that the light incident surface of the assembly is the same. Meanwhile, since the gaps of the respective cells 10 in the photovoltaic cell assembly are small, the number of the cells 10 may be greater in the case of the same size of the photovoltaic cell assembly, so that the voltage of the photovoltaic cell assembly is relatively higher.
In addition, each conductive structure 11 in the photovoltaic cell assembly provided by the application is sequentially and electrically connected through the conductive layer 12, namely each cell piece 10 in the photovoltaic cell assembly is sequentially and electrically connected through the conductive layer 12, so that the cell piece 10 is a cell piece without a grid electrode, and the conductive layer 11 with smaller thickness is utilized to replace a grid line in the original photovoltaic cell assembly, so that the area of a dead zone in the light incident surface of the photovoltaic cell assembly is further reduced, the photoelectric conversion efficiency of the photovoltaic cell assembly is improved, and the photoelectric conversion efficiency of the photovoltaic cell assembly provided by the application is relatively higher.
In addition, compared with the traditional battery piece, solar rays irradiate on the surface of the battery piece and are transmitted through the surface of the battery piece. The light incident surface of the photovoltaic cell assembly provided by the application is formed by the sections of the N cell pieces 10, so that sunlight can directly irradiate on each component part in the cell pieces 10, loss in the light transmission process is avoided, and the photovoltaic cell assembly photoelectric conversion efficiency is improved.
Optionally, in an embodiment of the present application, the conductive layer 12 is a metal layer, that is, the conductive layer 12 is made of a metal material, and the thickness of the conductive layer 12 ranges from 5nm to 20nm, including an endpoint value, and the thickness is very thin, so that when the conductive layer 12 is a metal layer, the conductive layer 12 has a conductive capability and a light-transmitting capability. Alternatively, when the conductive layer 12 is a metal layer, the material of the metal layer may be a conductive metal such as gold, silver, copper, iron, magnesium, or the like. And when the conductive layer 12 is a metal layer, the thickness of the conductive layer 12 is preferably 5nm.
In another embodiment of the present application, the conductive layer 12 is a transparent conductive layer, specifically, ITO, AZO, FTO, IWO, snO, in2O3, etc., which is transparent and conductive, so that the conductive layer 12 has a conductive capability and a transparent capability.
In the process of manufacturing the photovoltaic cell module provided by the present application, when the conductive layer 12 is a light-transmitting material layer, the light-transmitting material layer may be bonded, or a light-transmitting conductive material may be used for compounding, for example, a material such as a base polyolefin, a modified polyurethane, or a modified oligomeric acrylic, and the initial conductive layer 22 and the initial conductive structure 21 may be compounded by doping particles such as nano metal particles, graphene, nano ITO, or SnO2 to form a light-transmitting material layer having conductivity, light transmittance, and adhesion. When the conductive layer 12 is a light-transmitting material layer or metal, mechanical bonding can be performed by hot pressing.
Alternatively, in one embodiment of the present application, the width of the photovoltaic cell assembly ranges from 30 μm to 500 μm, including the end point value, preferably 200 μm, so that the width of the photovoltaic cell assembly is larger, and the current transmission channel in the photovoltaic cell assembly is wider. It is known that the impedance during current transfer is inversely proportional to the cross-sectional area of the transfer channel, and therefore the impedance during current transfer of the photovoltaic cell assembly is small, thereby helping to reduce current losses in the photovoltaic cell assembly.
Alternatively, in one embodiment of the present application, the battery cell 10 is a crystalline silicon battery cell. The application is not limited thereto and is specifically applicable.
On the basis of the above embodiment, in the present embodiment, the length of the photovoltaic cell assembly is 166mm or 182mm or 210mm, that is, the length of the cell 10 is 166mm or 182mm or 210mm. For example, taking the length of the photovoltaic cell assembly as 210mm as an example, if the thickness of the cell 10 is 200 μm and the number N of the cell 10 is 10000, the area of the light incident surface of the photovoltaic cell assembly is 10000×200 μm×210 mm=2×210mm, and the voltage is about 7000V. If the thickness of the cell 10 is 250 μm, the number N of the cell 10 is 300, and at this time, the area of the light incident surface of the photovoltaic cell assembly is 3000×250 μm×210 mm=750 mm×210mm, and the voltage is about 210V. From the above, the photovoltaic cell module provided by the application has a larger area of the light incident surface and a larger voltage. In addition, the battery pieces 10 in the photovoltaic cell assembly provided by the application are the existing crystalline silicon batteries or other existing photovoltaic cell pieces, and the thickness and the length of the battery pieces are generally determined values, so that the area of the light incident surface of the photovoltaic cell assembly and the voltage mainly depend on the number N of the battery pieces 10, and the number N of the battery pieces 10 in the photovoltaic cell assembly is not limited and the number of the batteries can be set according to actual conditions, so that the area of the light incident surface of the photovoltaic cell assembly and the voltage of the photovoltaic cell assembly can be flexibly set, and the photovoltaic cell assembly has high practicability.
In one embodiment of the present application, as shown in fig. 4, the conductive structure 11 includes a P-type region 111, a PN junction region 112 and an N-type region 113, where the P-type region 111, the PN junction region 112 and the N-type region 113 are sequentially stacked, the conductive layer 12 is located at a side of the N-type region 113 facing away from the P-type region 111 and is electrically connected to the N-type region 113, and the conductive layer 12 is also electrically connected to the P-type region in the adjacent battery cells 10, so that the conductive structure 11 is sequentially electrically connected through the conductive layer 12, and the battery cells 10 are sequentially electrically connected through the conductive layer 12. In another embodiment of the present application, as shown in fig. 4, the conductive layer 12 is located on a side of the P-type region 111 away from the N-type region 113, and is electrically connected to the P-type region, and the conductive layer 12 is also electrically connected to the N-type region in the adjacent cell 10, so that the conductive structures 11 are sequentially electrically connected through the conductive layer 12, and the cell 10 is sequentially electrically connected through the conductive layer 12.
Correspondingly, the application also provides a photovoltaic device, which comprises the photovoltaic cell assembly in any embodiment, such as a light sub-discharge device.
It is noted that the thickness width of the photovoltaic cell assembly is from 30 μm to 500 μm, inclusive, as known from the description of the specific structure of the photovoltaic cell assembly previously described. Therefore, in the process of preparing the photovoltaic cell assembly provided by the application by the preparation method, when the photovoltaic cell assembly is obtained by a cutting process, the cutting thickness is the width of the photovoltaic cell assembly, and is controlled to be between 30 and 500 mu m, preferably 200 mu m. The cutting depth is the thickness of the photovoltaic cell assembly and is the sum of the thicknesses of the N cell pieces.
In summary, the present application provides a photovoltaic cell assembly and a photovoltaic device, the photovoltaic cell assembly comprising: the battery pieces comprise a conductive structure and a conductive layer, the conductive layer is positioned on the first surface of the conductive structure and is electrically connected with the conductive structure, the conductive layer in the ith battery piece in the N battery pieces is electrically connected with the second surface of the conductive structure in the (i+1) th battery piece, and N is more than or equal to 1, and i is more than or equal to 1 and less than or equal to N-1; the first surface and the second surface of the conductive structure are opposite; the light incident surface of the photovoltaic cell assembly is a plane where the length direction of the cell is located. Therefore, the conductive layer of the photovoltaic cell assembly is a transparent conductive layer, so that when the inclination angle exists between the solar rays and the incident surface of the photovoltaic cell assembly, the solar rays can be continuously transmitted through the conductive layer 12 and transmitted to the adjacent conductive structure, the waste of the sunlight is restrained, and the utilization rate of the sunlight of the photovoltaic cell assembly is improved.
And, the conductive structures in N battery pieces in the photovoltaic cell assembly are electrically connected in sequence through the conductive layers, and the conductive layers in the battery pieces cover the first surface of the conductive structure in the battery piece and the second surface of the conductive structure in the adjacent battery piece, so that the area of the conductive structure is identical to that of the conductive structure, the thickness of the conductive layers can be smaller, the gaps of the battery pieces in the photovoltaic cell assembly are smaller, and the size of the photovoltaic cell assembly is reduced. Because the gaps among the battery pieces in the photovoltaic cell assembly are smaller, under the condition that the light incident surface areas of the assemblies are the same, the dead zone in the light incident surface of the photovoltaic cell assembly is smaller, the effective area is larger, the photoelectric conversion efficiency is higher, and under the condition that the sizes of the photovoltaic cell assemblies are the same, the number of the battery pieces in the photovoltaic cell assembly can be larger, so that the voltage of the photovoltaic cell assembly is relatively higher.
In addition, each cell in the photovoltaic cell assembly provided by the application is electrically connected through the conductive layer, the cell can be a cell without a grid electrode, and the conductive layer is utilized to replace the grid line in the original photovoltaic cell assembly, so that the area of a dead zone in the light incident surface of the photovoltaic cell assembly is further reduced, the photoelectric conversion efficiency of the photovoltaic cell assembly is improved, and the photoelectric conversion efficiency of the photovoltaic cell assembly provided by the application is relatively higher.
In the present specification, each embodiment is described in a progressive manner, or a parallel manner, or a combination of progressive and parallel manners, and each embodiment is mainly described as different from other embodiments, and the same similar areas between the embodiments are referred to each other. For the device disclosed in the embodiment, since the device corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method area.
It should be noted that, in the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in an article or device comprising the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A photovoltaic cell assembly, comprising:
The battery pieces comprise a conductive structure and a conductive layer, wherein the conductive layer is positioned on the first surface of the conductive structure and is electrically connected with the conductive structure, the conductive layer in the ith battery piece in the N battery pieces is electrically connected with the second surface of the conductive structure in the (i+1) th battery piece, and N is more than or equal to 1, and i is more than or equal to 1 and less than or equal to N-1; the first surface and the second surface of the conductive structure are opposite;
The photovoltaic cell comprises a photovoltaic cell component, a solar cell, a conductive layer, a light incident surface, a light emitting surface and a light emitting surface, wherein the conductive layer is a light-transmitting conductive layer, the light incident surface of the photovoltaic cell component is parallel to the section of the cell, and is parallel to a plane where the length direction of the cell is located.
2. The photovoltaic cell assembly of claim 1, wherein the conductive layer is a metal layer having a thickness ranging from 5nm to 20nm inclusive.
3. The photovoltaic cell assembly of claim 1, wherein the conductive layer is one of materials ITO, AZO, FTO, IWO, snO 2、In2O3.
4. The photovoltaic cell assembly of claim 1, wherein the photovoltaic cell assembly has a width ranging from 30 μm to 500 μm inclusive.
5. The photovoltaic cell assembly of claim 1, wherein the photovoltaic cell assembly has a length of 166mm or 182mm or 210mm.
6. The photovoltaic cell assembly of claim 1, wherein the conductive structure comprises a P-type region, a PN junction region, and an N-type region in that order, and the conductive layer is located on a side of the N-type region facing away from the P-type region and is electrically connected to the N-type region.
7. The photovoltaic cell assembly of claim 1, wherein the conductive structure comprises a P-type region, a PN junction region, and an N-type region in that order, and the conductive layer is located on a side of the P-type region facing away from the N-type region and is electrically connected to the P-type region.
8. The photovoltaic cell assembly of claim 1, wherein the cell is a crystalline silicon cell.
9. A photovoltaic device comprising the photovoltaic cell assembly of any of claims 1-5.
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