CN101510570A - Film solar battery module set with series parallel structure and method of processing the same - Google Patents

Film solar battery module set with series parallel structure and method of processing the same Download PDF

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CN101510570A
CN101510570A CNA2009101151347A CN200910115134A CN101510570A CN 101510570 A CN101510570 A CN 101510570A CN A2009101151347 A CNA2009101151347 A CN A2009101151347A CN 200910115134 A CN200910115134 A CN 200910115134A CN 101510570 A CN101510570 A CN 101510570A
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module
conductive film
modular unit
unit
missing
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CNA2009101151347A
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刘穆清
健 唐
滨 范
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苏州富能技术有限公司
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Publication of CN101510570A publication Critical patent/CN101510570A/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/52Manufacturing of products or systems for producing renewable energy
    • Y02P70/521Photovoltaic generators

Abstract

The invention discloses a serial/parallel-connection structural thin-film solar battery module group and a processing method thereof; the serial/parallel-connection structural thin-film solar battery module group comprises a plurality of battery modules arranged on the same substrate, wherein the serial connection of module units of the same battery module and the serial/parallel connection of different battery modules are completed through a printed electrode directly; the processing method comprises the steps: a) the substrate is plated with a bottom conducting film, a power generating layer and a top layer conducting film in sequence; b) a scoring device is used to mark out tangent slots for separating battery modules and module units, and a first orifice and a second orifice are excavated; c) an insulating layer is coated on the wall of each first orifice; and d) finally, the printed electrode is plated. The serial/parallel-connection thin-film solar battery module group needs not to be welded with an external-connection conductor or connected by conductors and has simple processes and stable structure.

Description

串并联结构的薄膜太阳电池模块组及其加工方法 Thin-film solar cell module and method of processing serial-parallel set of structures

技术领域 FIELD

本发明涉及一种串并联结构的薄膜太阳电池模块组及其加工方法。 The present invention relates to a thin-film solar cell module set and a method for processing a series-parallel configuration. 背景技术 Background technique

薄膜太阳能电池以用料省,成本低,应用广泛等特点成为目前最有前景的新型太阳能电池,已成为当今世界光伏技术研究开发工作的重点项目、热点课题。 Thin film solar cells with material saving, low cost, widely used and so become the most promising new type of solar cells, has become the focus of world photovoltaic technology research and development project work, a hot topic. 其类型包括硅基薄膜太阳能电池、CdTe碲化镉系薄膜大阳能电池、CIS 铜铟硒系薄膜太阳能电池等若干个品种,这些不同类型的薄膜电池虽然结构并不相同,但一般可以归纳为:衬底、导电层、发电层及导电层依次分布的结构, 其中发电层包括缓冲层和半导体吸收层。 Of the type comprising a thin film silicon-based solar cells, CdTe cadmium telluride based thin-film Solar energy cells, the CIS based thin-film copper indium selenide solar cell several varieties, these different types of batteries, although the thin film structure is not the same, but generally can be summarized as : structural substrate, a conductive layer, an electric power generation layer and the conductive layer are distributed, wherein a power generation layer comprises a buffer layer and a semiconductor absorber layer.

为了减少薄膜太阳电池模块在制作时的划线清洗次数,本申请人提出过一种新的薄膜太阳电池模块结构,如图1所示,其包括设于衬底上的底层导电膜和顶层导电膜、以及夹设在底层导电膜和顶层导电膜之间的发电层,所述电池模块由若干切断顶层导电膜、发电层以及底层导电膜的切线槽分隔成若干模块单元,所述衬底于模块单元两端方向向外延伸有伸出部11,所述底层导电膜向外延伸有覆盖于部分伸出部11上的突出部8,所述每个模块单元的顶层导电膜上设有印刷电极,所述印刷电极两端与下一个模块单元的两个突出部8 连接。 To reduce scribing thin-film solar cell module in the production of washing times, the present applicant proposed a new thin film solar cell module structure shown in Figure 1, comprising the underlying conductive film provided on the substrate and on the electrically conductive top layer film, and a power generation layer is sandwiched between the top layer and the underlying conductive film is a conductive film, the battery module by a plurality of cutting the top layer conductive film, the power generation layer, and a cutting slot underlying conductive film is divided into a plurality of modular units, to the substrate both ends of a direction module unit 11 extends outwardly, the outwardly projecting portion underlying conductive film covers the portion of the upper projecting portion 8 projecting portion 11, the conductive film of the top layer of each modular unit is provided with printed two projecting electrodes, and across the electrodes of the printed next modular unit 8 is connected. 电池模块的首个模块单元的突出部上焊接第一外接导体12,电池模块最后一个模块单元的印刷电极两端与第二外接导体13焊接。 Welding a first external conductor 12, a printed across the electrodes of the battery module is the last module unit and the second external conductor 13 is soldered to the first projecting portion of the modular units of the battery module. 所以不同电池模块之间连接时,需另用导线在不同电池模块的第一外接导体12或第二外接导体13之间连接。 Therefore, the connection between the different battery modules, subject to a first external conductor connected between the different battery modules 12 or the second external conductor 13 with a wire. 这样的连接方式一方面需要将外接导体焊接到电池模块上, 有可能会在焊接过程中对电池模块造成损坏,另一方面焊接点有可能会松动、 氧化等,造成接触不良从而影响电池的使用。 Such a connection conductor on the one hand needs to be welded to the external battery module, may cause damage to the battery module during the welding process, the welding point on the other hand there may be loose oxide, resulting in poor contact affect cell .

发明内容 SUMMARY

本发明的目的是提供一种串并联结构的薄膜太阳电池模块组及其加工方法,其同一电池模块的模块单元之间的串联和不同电池模块之间的并联或串联直接通过印刷电极完成,无需再焊接外接导体和使用导线连接,工艺简单,结构稳定;同时其不必将基板反复从真空状态中取出,使制备薄膜电池的生产线进行连续化的生产操作,减少了工艺时间,大大简化了工艺步骤;同时减少了多次划线和清洗会对电池造成的污染。 Object of the present invention is to provide a series-parallel configuration of a thin film solar cell module group and its processing method, parallel or in series between the modular units between which a battery module of the same series and different battery modules done directly by printing electrode without and then welding the external conductors and the use of wire connections, simple process, in a stable structure; while it is not necessary to the substrate is repeatedly removed from the vacuum state in the preparation of thin film battery production line for continuous manufacturing operations, reducing the process time, greatly simplifying the process steps ; scribe line while reducing contamination and cleaning times will cause the battery. 本发明的技术方案是: Aspect of the present invention is:

一种串并联结构的薄膜太阳电池模块组,包括衬底,所述衬底上设置有若干电池模块,所述每个电池模块包括依次设于衬底上的底层导电膜、发电层以及顶层导电膜,所述电池模块由若干切断顶层导电膜、发电层以及底层导电膜的切线槽分隔成若干模块单元,每个模块单元的顶层导电膜上设有印刷电极, 相邻两个电池模块之间通过切线槽分隔开,所述每个模块单元上与上一模块单元相邻位置设有露出衬底的第一缺孔,所述每个模块单元设有与下一模块单元的第一缺孔连通的露出底层导电膜的第二缺孔,所述每个下一模块单元上的印刷电极的端部位于本模块单元的第一缺孔和上一模块单元的第二缺孔内,所述第一缺孔的孔壁上至少于印刷电极经过位置处涂有绝缘层。 Thin-film solar cell module set of one series-parallel structure, comprising a substrate, said substrate is provided with a plurality of battery modules, each battery module comprising the sequence provided in the underlying conductive film on a substrate, a conductive power layer, and a top layer film, the battery module by a plurality of cutting the top layer conductive film, the power generation layer, and a cutting slot underlying conductive film is divided into a plurality of unit modules, each module unit top layer conductive film is provided with printed electrodes, between adjacent two battery modules separated by cutting groove, the position of each modular unit is provided with a first hole to expose the substrate with the lack of a module on the adjacent unit, each modular unit is provided with the first unit is connected with the next module a second hole of the first missing missing missing second bore hole exposes the underlying conductive film pores, and the end portion of each of the electrodes on the next printing module unit is located on this module unit and a module unit, the lack the cell walls of said first bore through at least the printed electrode coated with an insulating layer at the location.

一种串并联结构的薄膜太阳电池模块组的加工方法,包括以下步骤: The method of processing a thin film solar cell module set of series-parallel structure, comprising the steps of:

a) 、在衬底上依次镀底层导电膜、发电层以及顶层导电膜; A), sequentially coating the underlying conductive film on a substrate, a conductive film electric power generation layer and a top;

b) 、再利用划线装置在镀好的膜上划出分隔电池模块和模块单元的切线槽;并挖出第一缺孔和第二缺孔; b), then a good plating film using the scribing apparatus to draw separated cell module and the module unit in the cut groove; and dig a first hole and a second missing missing hole;

c) 、再于每个第一缺孔的孔壁上涂设绝缘层; c), then at the pore walls of each of the first missing hole coating insulating layer is provided;

d) 、最后再镀上印刷电极。 d), and finally coated printed electrode. 本发明进一步的技术方案是: A further aspect of the present invention is:

一种串并联结构的薄膜太阳电池模块组,包括衬底,所述衬底上设置有若干电池模块,所述每个电池模块包括依次设于衬底上的底层导电膜、发电层以及顶层导电膜,所述电池模块由若干切断顶层导电膜、发电层以及底层导电膜的切线槽分隔成若干模块单元,每个模块单元的顶层导电膜上设有印刷电极, 相邻两个电池模块之间通过切线槽分隔开,所述每个模块单元上与上一模块单元相邻位置设有露出衬底的第一缺孔,所述每个模块单元设有与下一模块单元的第一缺孔连通的露出底层导电膜的第二缺孔,所述每个下一模块单元上的印刷电极的端部位于本模块单元的第一缺孔和上一模块单元的第二缺孔内,所述第一缺孔的孔壁上至少于印刷电极经过位置处涂有绝缘层:所述并排相邻的两个电池模块的模块单元的第一个模块单元并排相邻设置,两个相邻 Thin-film solar cell module set of one series-parallel structure, comprising a substrate, said substrate is provided with a plurality of battery modules, each battery module comprising the sequence provided in the underlying conductive film on a substrate, a conductive power layer, and a top layer film, the battery module by a plurality of cutting the top layer conductive film, the power generation layer, and a cutting slot underlying conductive film is divided into a plurality of unit modules, each module unit top layer conductive film is provided with printed electrodes, between adjacent two battery modules separated by cutting groove, the position of each modular unit is provided with a first hole to expose the substrate with the lack of a module on the adjacent unit, each modular unit is provided with the first unit is connected with the next module a second hole of the first missing missing missing second bore hole exposes the underlying conductive film pores, and the end portion of each of the electrodes on the next printing module unit is located on this module unit and a module unit, the lack the cell walls of said first bore through at least the printed electrode coated with an insulating layer at a location: a first modular unit alongside the module unit adjacent two battery modules disposed side by side adjacent to, two adjacent 的的第一个模块单元的顶层导电膜之间通过印刷连接电极电连接,最后一个模块单元的底层导电膜之间通过两个相邻的第二缺孔内的印刷连接电极电连接:所述并排相邻的两个电池模块的模块单元排列方向相反,上一电池模块的最后一个模块单元与下一电池模块的第一个模块单元相邻设置,所述上一电池模块的最后一个模块单元的底层导电膜与下一电池模块的第一个模块单元的顶层导电膜通过印刷电极电连接。 The top layer between the first conductive film is connected to a module unit is connected to electrodes by printing, the last modular unit of the underlying conductive film is electrically connected to the connection electrode by printing two adjacent second bore missing: the Instead modular units side by side arrangement direction of the two adjacent battery modules, a first module unit module of the battery module of the last unit of the next battery module disposed adjacent to the unit on the last module in a battery module the top layer of the conductive film underlying conductive film and the first modular unit of a next battery module electrically connected to the electrode by printing.

一种串并联结构的薄膜太阳电池模块组的加工方法,包括以下步骤:a)、 在衬底上依次镀底层导电膜、发电层以及顶层导电膜;b)、再利用划线装置在镀好的膜上划出分隔电池模块和模块单元的切线槽;并挖出第一缺孔和第二缺孔;c)、再于每个第一缺孔的孔壁上涂设绝缘层;d)、最后再镀上印刷电极。 The method of processing a thin film solar cell module set of series-parallel structure, comprising the steps of: a), sequentially coating on the substrate underlying conductive film, the conductive film electric power generation layer and a top layer; B), then a good plating apparatus using a scribing draw cut groove membrane separator cell module and the module unit; and dig a first hole and a second missing missing aperture; c), then at the pore walls of each of the first missing hole coating insulating layer is provided; D) , and finally plated printed electrode. 所述第一缺孔为在每个模块单元纵向端部与上一模块单元相邻位置处挖除部分顶层导电膜、发电层以及底层导电膜形成的露出衬底的缺孔;所述第二缺孔为在每个模块单元上挖除部分顶层导电膜和发电层形成露出底层导电膜的缺孔;所述第二缺孔与下一模块单元的第一缺孔相邻且连通;所述印刷电极的主体位于每个模块单元的顶层导电膜上,每个下一模块单元上的印刷电极的端部位于本模块单元的第一缺孔和上一模块单元的第二缺孔内:所述并排相邻的两 Missing the first hole at a position on a module unit adjacent longitudinal end portions of the top layer of each modular unit excavation conductive film, the substrate is exposed missing hole generating layer and the underlying conductive film formed; the second missing hole exposes the underlying conductive film is formed so as to excavate partially missing hole conductive film and the top layer on each of the power generation module unit; a first hole and a second missing missing holes and the next adjacent modular unit communication; the printed electrode the conductive film located on the top of the body of each modular unit, the ends of the electrodes printed on each of the next module unit located in the second hole of the first missing missing hole present on a module unit and module unit: the parallel two neighboring

个电池模块的模块单元的第一个模块单元并排相邻设置,两个相邻的的第一个模块单元的顶层导电膜之间通过印刷连接电极电连接,最后一个模块单元的底层导电膜之间通过两个相邻的第二缺孔内的印刷连接电极电连接;所述并排相邻的两个电池模块的模块单元排列方向相反,上一电池模块的最后一个模块单元与下一电池模块的第一个模块单元相邻设置,所述上一电池模块的最后一个模块单元的底层导电膜与下一电池模块的第一个模块单元的顶层导电膜通过印刷电极电连接。 A first modular unit of the modular unit battery modules arranged side by side adjacent to, the electrical connection between the two electrodes of a top layer of conductive films adjacent modular unit by printing, the last modular unit of the underlying conductive film is connected between connection electrodes by printing two adjacent second bore missing; side by side opposite to the two adjacent battery modules module unit arrangement direction, the battery module is a module of the last cell to the next cell module a first module unit disposed adjacent to the top layer conductive film of the first modular unit last underlying conductive film on a modular unit of the next battery module and the battery module is electrically connected to an electrode by printing. 本发明优点是: Advantage of the present invention is:

1. 本发明将薄膜太阳电池的不同电池模块镀膜加工成形于同一衬底上, 同一电池模块的模块单元之间的串联及不同电池模块之间的并联或串联直接通过印刷电极完成,无需再进行焊接加工和导线来连接,简化了加工工艺,同时也避免焊接加工时可能对电池模块造成的损坏。 1. The present invention is a thin film solar cell modules of different film forming process on the same substrate, in parallel or in series between the series connection between module units of the same battery modules and battery modules of different printing done directly through the electrodes, without further and welding wire are connected, simplify the process, but also to avoid possible damage to the battery module caused by the welding process.

2. 本发明多个电池模块加工在同一块衬底上,同时其串并联连接直接通过印制印刷电极完成,连接可靠,结构稳定。 2. The process of the present invention in the plurality of battery modules on the same substrate, while it is directly connected in series-parallel printing completion by printing electrode connected reliable and stable structure.

3. 本发明的划线以及挖孔等加工步骤均在镀膜完成以后进行,不必将基板反复从真空状态中取出,使制备薄膜电池的生产线进行连续化的生产操作, 减少了工艺时间,大大简化了工艺步骤;同时减少了多次划线和清洗会对电池 Digging scribing and other processing steps of the present invention are 3. After the completion of coating, the substrate need not be repeatedly removed from the vacuum state in the preparation of thin film battery production line continuous production operations, reducing the process time, greatly simplified process steps; while reducing cleaning times and the battery will scribing

6造成的污染。 6 pollution. 附图说明 BRIEF DESCRIPTION

图1为现有技术的薄膜太阳电池模块的结构示意图; 图2为本发明第一具体实施例的结构示意图; 图3为图2的I处放大示意图; 1 is a schematic structure of a thin film solar cell module of the prior art; schematic structural diagram of a first embodiment of the present invention, FIG. 2; FIG. 3 is I enlarged view of FIG 2;

图4至图10为本发明第三具体实施例的加工步骤示意图。 Schematic processing procedure of Example 4 to a third concrete 10 of the present invention. 其中:1电池模块;2衬底;3底层导电膜;4顶层导电膜;5发电层;6 切线槽;7模块单元;7a第一个模块单元:7b最后一个模块单元;8突出部; 9印刷电极;IO印刷连接电极;ll伸出部;12第一外接导体;13第二外接导体;14第一缺孔;15第二缺孔;16绝缘层;17延伸部。 Wherein: a battery module; second substrate; underlying conductive film 3; 4 top layer conductive film; generating layer 5; 6 cut slot; 7 module unit; a first module unit. 7A: 7B last modular unit; projecting portion 8; 9 printing electrode; electrode connected to the IO printed; LL projecting portion; a first external conductor 12; a second external conductor 13; 14 lack a first aperture; lack of a second aperture 15; 16 insulating layer; portion 17 extends. 具体实施方式 Detailed ways

下面结合附图及实施例对本发明作进一步描述: 第一具体实施例: Example embodiments of the present invention will be further described in conjunction with the accompanying drawings and the following: The first embodiment:

如图2和图3所示, 一种串并联结构的薄膜太阳电池模块组,包括衬底2, 所述衬底2上设置有若干电池模块1,所述每个电池模块1包括依次设于衬底2上的底层导电膜3、发电层5以及顶层导电膜4,所述电池模块1由若干切断顶层导电膜4、发电层5以及底层导电膜3的切线槽6分隔成若干模块单元7,每个模块单元7的顶层导电膜4上设有印刷电极9,相邻两个电池模块1 之间通过切线槽6分隔开,所述每个模块单元7纵向的两端与上一模块单元7 相邻位置处设有露出衬底2的第一缺孔14,所述每个模块单元7设有与下一模块单元7的第一缺孔14连通的露出底层导电膜3的第二缺孔15,由图3可以看出,上一模块单元7的第二缺孔15与下一模块单元7的第一缺孔14共用一条相邻的边。 2 and 4, one kind of thin film solar cell module group 3 series-parallel structure, comprising a substrate 2, the substrate 1 is provided with a plurality of battery modules, each battery module 1 comprises the sequentially arranged on 2 underlying conductive film 3 on the substrate 2, the power generation layer 5 and a top conductive film 4, the battery module 1 by a number of a plurality of modular units 4 off the top layer conductive film, the power generation layer 5 and the underlying conductive film was cut into the partition groove 3 7 6 , each module unit is provided with a conductive film 47 on the top layer of the printed electrode 9, between adjacent two battery modules 1 by cutting groove 6 are separated, the two ends of each modular unit 7 on a module with a longitudinal 7 unit is provided at a position adjacent to expose the first substrate 2 missing holes 14, each module the next module unit 7 is provided with a first unit 14 of the missing communication hole 7 is exposed underlying conductive film of the second 3 lack of holes 15, can be seen from Figure 3, a first hole 14 lack a common abutting edges 7 of the lack of a second module unit 15 and the hole 7 of the next module cell. 所述每个下一模块单元7上的印刷电极9的端部位于本模块单元7的第一缺孔14和上一模块单元7的第二缺孔15内,这样就使得下一模块单元7的顶层导电膜4与上一模块单元7的底层导电膜3串联起来。 Each unit end of the next module on the printed electrode portion 79 is located a first module unit of the present lack of holes 7 and 14 on a module unit 15, so that the next modular unit 7 of the second missing hole 7 the top layer 4 and the conductive film on the underlying conductive film 7 of a module unit 3 connected in series. 所述第一缺孔14的孔壁上至少于印刷电极9经过位置处涂有绝缘层16,使得第一缺孔14孔壁的底层导电膜3不会露出来与印刷电极9电连通。 The underlying conductive film on the pore walls of the first aperture 14 is missing at least in the printed electrode coated with an insulating layer 9 through 16 at a position such that the lack of a first hole 14 bore wall 3 is not exposed to electrical communication with the printed electrode 9.

所述并排相邻的两个电池模块1的模块单元7的第一个模块单元7a并排相邻设置,两个相邻的的第一个模块单元7a的顶层导电膜4之间通过印刷连接电极10电连接,最后一个模块单元7b的底层导电膜3之间通过两个相邻的 A top conductive films of the modular unit of two battery modules side by side adjacent modular units 1 side by side in the first module unit 7 disposed adjacent 7a, 7a of the two adjacent electrodes 4 is connected between the printing 10 is electrically connected to the last modular unit 7b underlying conductive film 3 between two adjacent

7第二缺孔15内的印刷连接电极10电连接。 Printing in a second missing 157 via connection electrodes 10 are connected electrically.

这样,本实施例的薄膜太阳电池模块组即为同一电池模块1内的所有模块单元7之间通过印刷电极9的端部串联;不同电池模块1之间通过印刷连接电极10并联起来。 Thus, the thin-film solar cell module of the present embodiment is the group of the same battery modules in all module unit 7 in series between one end of the printed through the electrode 9; connected in parallel between the electrodes by printing different from the battery module 10 together.

第二具体实施例: Second embodiment:

第一具体实施例所述的串并联结构的薄膜太阳电池模块组的加工方法,包括以下步骤: The method of processing a thin film solar cell module group of series-parallel configuration of the first specific embodiment of embodiment, comprising the steps of:

a) 、在衬底2上依次镀底层导电膜3、发电层5以及顶层导电膜4: A), the underlying conductive film are sequentially plated on the substrate 23, the power generation layer 5 and a top conductive film 4:

b) 、再利用划线装置在镀好的膜上划出分隔电池模块1和模块单元7的切线槽6; b), then a good plating film using the scribing apparatus to draw the battery modules 1 and the partition means in the cutting groove 6, 7;

c) 、在每个模块单元7的两端挖除部分顶层导电膜4和发电层5,露出底层导电膜3;再于露出底层导电膜3的部分挖除部分底层导电膜3,形成露出衬底2的第一缺孔14;而未被挖除底层导电膜3的部分就形成第二缺孔15; C), part of the top layer conductive film excavation module at both ends of each power generation unit 7 layers 4 and 5, the underlying conductive film 3 is exposed; then at the exposed portion of the underlying conductive film part 3 of the excavation underlying conductive film 3 is formed to expose the liner 2, a first hole bottom 14 missing; excavation without being part of the underlying conductive film 3 on the lack of a second hole 15 is formed;

d) 、再于每个第一缺孔14的孔壁上涂设绝缘层16; d), and then to each of the walls 14 of the first missing Kong and Kong coating insulating layer 16 is provided;

e) 、最后再镀上印刷电极9和印刷连接电极10。 e), and finally coated printed electrode 9 and connecting electrode 10 printed.

第三具体实施例: Third Specific Example:

如图10所示, 一种串并联结构的薄膜太阳电池模块组,包括衬底2,所述衬底2上设置有若干电池模块1,所述每个电池模块1包括依次设于衬底2 上的底层导电膜3、发电层5以及顶层导电膜4,所述电池模块l由若干切断顶层导电膜4、发电层5以及底层导电膜3的切线槽6分隔成若干模块单元7, 每个模块单元7的顶层导电膜4上设有印刷电极9,相邻两个电池模块1之间通过切线槽6分隔开,所述每个模块单元7上与上一模块单元7相邻位置设有露出衬底2的第一缺孔14,所述每个模块单元7设有与下一模块单元7的第一缺孔14连通的露出底层导电膜3的第二缺孔15,所述每个下一模块单元7 上的印刷电极9的端部位于本模块单元7的第一缺孔14和上一模块单元7的第二缺孔15内,所述第一缺孔14的孔壁上至少于印刷电极9经过位置处涂有绝缘层16。 As shown, one kind of thin-film solar cell module set 10 of the series-parallel structure, comprising a substrate 2, the substrate 1 is provided with a plurality of battery modules, each battery module 1 comprises a sequentially provided on the substrate 2 2 3 on the underlying conductive film, the power generation layer 5 and a plurality of module units top conductive film 4, the battery module by a plurality of cutting the top layer l electroconductive film 4, the power generation layer 5 and the underlying conductive film was cut into the partition groove 7 3 6, each printed electrode 9 is provided on the top layer of the conductive film module unit 47, the two adjacent battery modules apart by cutting a slot between the partition 6, 7 of each module unit and the upper unit 7, a module disposed adjacent positions exposing the first hole with a lack of substrate 14 2, each of the module unit 7 is provided with a second hole of the first missing missing 14 communication hole 7 is exposed underlying conductive film 15 of the next module unit 3, each of 15, missing the first bore hole wall on the end of the printed electrodes 79 of the next module a module unit of the present unit is located at a first missing holes 7 and 14 on a second module unit 14 of the missing hole 7 coating at least the printed electrode 9 through the insulating layer 16 at a position.

所述并排相邻的两个电池模块1的模块单元7排列方向相反,上一电池模块l的最后一个模块单元7b与下一电池模块l的第一个模块单元7a相邻设置, 每个电池模块1最后一个模块单元7b设有延伸至下一个电池模块1的第一个模块单元7a的延伸部17,所述延伸部17的表层为上一个电池模块1最后一个模块单元7b的底层导电膜3,所述下一电池模块1的第一个模块单元7a的印刷电极9的端部位于该延伸部17内,使得上一电池模块1与下一电池模块1之间串联。 Instead of the two adjacent battery modules side by side module unit 7 in the arrangement direction 1, a battery module on the l last modular unit 7b is provided to the next battery module of the first module l 7a adjacent cell, each cell the last module 1 is provided with a modular unit 7b extending portion extending to the next battery module 1 of the first unit 7a of the module 17, the surface layer extending portion 17 of a battery module 1 on the last modular unit in the underlying conductive film 7b 3, the electrode end portion of the next printing a battery module 1 of the first modular unit 7a of the extending portion 9 located at 17, so that a series between the battery modules 1 on the next battery module 1.

第四具体实施例: Fourth embodiment:

如图4至图10所示,第三具体实施例所述的串并联结构的薄膜太阳电池模块组的加工方法,包括以下步骤: 4 to FIG. 10, the processing method of a thin film solar cell module set according to a third embodiment of the series-parallel structure, comprising the steps of:

a) 、在衬底2上依次镀底层导电膜3、发电层5以及顶层导电膜4,如图4所示; A), are sequentially plated onto the underlying conductive film 3 of the substrate 2, the power generation layer 5 and a top conductive film 4 shown in Figure 4;

b) 、再利用划线装置在镀好的膜上划出分隔电池模块1和模块单元7的切线槽6;其中上一电池模块1的最后一个模块单元7b与下一电池模块1的第一个模块单元7a相邻位置处的切线槽6朝向下一电池模块1的第一个模块单元7a偏移形成延伸部17,如图5所示; b), and then cut using the scribing apparatus in a good plating film drawn trough the battery modules 1 and the partition unit 6, 7; wherein a first battery module on a last modular unit 7b to the next cell module 1 of 1 7a slot cut at a position adjacent modular units 6 towards the next battery module 1 of the first modular unit extending offset portion 7a is formed. 17, shown in Figure 5;

c) 首先在每个模块单元7纵向的一端挖除部分顶层导电膜4和发电层5, 露出底层导电膜3,如图6所示;再将除每个电池单元1除最后一个模块单元7b的其它模块单元7露出底层导电膜3的部分挖除部分底层导电膜3,形成露出衬底2的第一缺孔14:而未被挖除底层导电膜3的部分就形成第二缺孔15, 如图7所示;其中延伸部17上的顶层导电膜4和发电层5也被挖除,露出底层导电膜3; c) top layer portion of the conductive film 4 is first excavation at one end of the power generation layer 5 and 7 the longitudinal direction of each modular unit is exposed underlying conductive film 3, as shown in FIG. 6; and then the other of each battery cell 1 in addition to the last modular unit 7b other modular units 7 to expose the underlying conductive film portion 3 excavation portion underlying conductive film 3, a first missing hole 14 is formed to expose the substrate 2: 3 without being excavated portion of the underlying conductive film 15 is formed on the second hole missing , 7; wherein the top layer conductive film 17 on the extension portion 4 and the power generating layer 5 is excavated to expose the underlying conductive film 3;

d) 、再于每个第一缺孔14的孔壁以及延伸部17的孔壁被印刷电极9经过的地方涂设绝缘层16,如图8所示; d), then missing in each of the first hole wall 14 and the hole wall portion 17 extending through the place to be printed electrode 9 is coated insulating layer 16 is provided, shown in Figure 8;

e) 、最后再镀上印刷电极9,如图9所示。 E), and finally coated printed electrode 9, as shown in FIG.

其中印刷电极9还可以为图IO所示的形状,便于电流更好的传输。 Wherein the printed electrode 9 may also be a shape shown in FIG IO, to facilitate a better current transport.

本发明其同一电池模块的模块单元之间的串联和不同电池模块之间的并联或串联直接通过印刷电极完成,无需再焊接外接导体和使用导线连接,工艺简单,结构稳定;同时其不必将基板反复从真空状态中取出,使制备薄膜电池的生产线进行连续化的生产操作,减少了工艺时间,大大简化了工艺步骤;同时减少了多次划线和清洗会对电池造成的污染。 Parallel or in series between the battery modules connected in series between the different modules of the present invention means that the same battery module is completed by printing an electrode directly, without further external conductor welded wire connections and use, simple process, in a stable structure; while it is not necessary to the substrate repeatedly removed from the vacuum state in the preparation of thin film battery production line continuous production operations, reducing the process time greatly simplifies the process steps; scribe line while reducing contamination and cleaning times will cause the battery.

Claims (8)

1. 一种串并联结构的薄膜太阳电池模块组,包括衬底(2),其特征在于:所述衬底(2)上设置有若干电池模块(1),所述每个电池模块(1)包括依次设于衬底(2)上的底层导电膜(3)、发电层(5)以及顶层导电膜(4),所述电池模块(1)由若干切断顶层导电膜(4)、发电层(5)以及底层导电膜(3)的切线槽(6)分隔成若干模块单元(7),每个模块单元(7)的顶层导电膜(4)上设有印刷电极(9),相邻两个电池模块(1)之间通过切线槽(6)分隔开,所述每个模块单元(7)上与上一模块单元(7)相邻位置设有露出衬底(2)的第一缺孔(14),所述每个模块单元(7)设有与下一模块单元(7)的第一缺孔(14)连通的露出底层导电膜(3)的第二缺孔(15),所述每个下一模块单元(7)上的印刷电极(9)的端部位于本模块单元(7)的第一缺孔(14)和上一模块单元(7)的第二缺孔(15)内,所述第一缺孔(14)的孔壁上至少于印刷电极(9)经过位 1. A thin film solar cell module strings connected in parallel structure, comprising a substrate (2), characterized in that: the substrate is provided with a plurality of battery module (1) (2), each said battery module (1 ) comprises sequentially disposed on a substrate (underlying conductive film (3) on 2), the power generation layer (5) and a top conductive film (4), the battery module (1) by a plurality of cutting the top layer conductive film (4), generating cut groove layer (5) and the underlying conductive film (3) (6) divided into a plurality of modular units (7), the top layer conductive film of each modular unit (7) is provided with printed electrodes (9) (4), with o between the two battery modules (1) are separated by cutting groove (6), each said modular unit (7) on a modular unit (7) is provided adjacent to the exposed position of the substrate (2) a first missing hole (14), each said modular unit (7) is provided with a second aperture to expose the underlying conductive film is missing the next modular unit (7) the lack of a first hole (14) communicating (3) ( the second aperture 15 of the first missing), the modular unit each next printed electrode (9) on (7) located at an end portion of this module unit (7) (14) and on a module unit (7) the cell walls missing hole (15), missing the first hole (14) at least on a printed electrode (9) through bit 处涂有绝缘层(16)。 At coated with an insulating layer (16).
2. 根据权利要求1所述的串并联结构的薄膜太阳电池模块组,其特征在于:所述并排相邻的两个电池模块(1)的模块单元(7)的第一个模块单元(7a)并排相邻设置,两个相邻的的第一个模块单元(7a)的顶层导电膜(4)之间通过印刷连接电极(10)电连接,最后一个模块单元(7b)的底层导电膜(3)之间通过两个相邻的第二缺孔(15)内的印刷连接电极(10) 电连接。 The thin film solar cell module set 1 of the series-parallel structure of claim, wherein: said parallel adjacent two battery modules (1) of the modular unit (7) of the first modular unit (7a ) provided side by side adjacent to, electrically connected to connection electrodes by printing (10) between the top conductive film (4) a first modular unit (7a) of two adjacent, underlying conductive film of the last modular unit (7b) of electrically connecting two adjacent second through holes of the printed lack of connection electrodes (10) (15) (3).
3. 根据权利要求1所述的串并联结构的薄膜太阳电池模块组,其特征在于:所述并排相邻的两个电池模块(1)的模块单元(7)排列方向相反, 上一电池模块(1)的最后一个模块单元(7b)与下一电池模块(1)的第一个模块单元(7a)相邻设置,所述上一电池模块(1)的最后一个模块单元(7b)的底层导电膜(3)与下一电池模块(1)的第一个模块单元(7a)的顶层导电膜(5)通过印刷电极(9)电连接。 The thin film solar cell module set 1 of the series-parallel structure of claim, wherein: said opposite parallel adjacent two battery modules (1) of the modular unit (7) arrangement direction on a battery module (1) the last modular unit (7b) and the next battery module (1) in a first modular unit (7a) disposed adjacent to the upper module a battery (1) of the last modular unit (7b) of top layer conductive film underlying conductive film (5) (3) and the next battery module (1) in a first modular unit (7a) (9) electrically connected to the electrode by printing.
4. 一种权利要求1所述的串并联结构的薄膜太阳电池模块组的加工方法,其特征在于包括以下步骤:a) 、在衬底(2)上依次镀底层导电膜(3)、发电层(5)以及顶层导电膜(4);b) 、再利用划线装置在镀好的膜上划出分隔电池模块(1)和模块单元(7)的切线槽(6);并挖出第一缺孔(14)和第二缺孔(15);c) 、再于每个第一缺孔(14)的孔壁上涂设绝缘层(16):d) 、最后再镀上印刷电极(9)。 The method of processing a thin film solar cell module set 1, the series-parallel structure of Claim 4., characterized by comprising the steps of: a), on a substrate (2) are sequentially plated underlying conductive film (3), generation layer (5) and a top electrically conductive film (4); b), then a good plating using the scribing apparatus to draw separated film battery module (1) and the modular unit (7) of the cutting slot (6); and dig a first missing hole (14) and a second hole missing (15); c), then the cell walls missing in each of the first hole (14) provided in the insulating layer coating (16): d), and finally coated printing electrode (9).
5. 根据权利要求4所述的串并联结构的薄膜太阳电池模块组的加工方法,其特征在于:所述第一缺孔(14)为在每个模块单元(7)纵向端部与上一模块单元(7)相邻位置处挖除部分顶层导电膜(4)、发电层(5)以及底层导电膜(3)形成的露出衬底(2)的缺孔;所述第二缺孔(15)为在每个模块单元(7)上挖除部分顶层导电膜(4)和发电层(5)形成露出底层导电膜(3)的缺孔;所述第二缺孔(15)与下一模块单元(7)的第一缺孔(14)相邻且连通。 The processing method of the thin film solar cell module 4 series-parallel structure set forth in claim, wherein: is (7) with the upper longitudinal end portion of the first missing a hole (14) in each module unit module unit (7) of the top layer conductive film (4), the power generation layer (5) and a lack of holes exposing the substrate (2) of the underlying conductive film (3) formed at a position adjacent to the excavation; lack the second aperture ( 15) the lack of holes exposing the underlying conductive film (3) is part of the top layer conductive film (4) and the power generation layer (5) on each module excavation unit (7) is formed; the missing second hole (15) and a lower a module unit (7) the lack of a first hole (14) adjacent to and in communication.
6. 根据权利要求4所述的串并联结构的薄膜太阳电池模块组的加工方法,其特征在于:所述印刷电极(9)的主体位于每个模块单元(7)的顶层导电膜(4)上,每个下一模块单元(7)上的印刷电极(9)的端部位于本模块单元(7)的第一缺孔(14)和上一模块单元(7)的第二缺孔(15)内。 The processing method of a thin film solar cell module group 4 of the series-parallel structure as claimed in claim, characterized in that: said printed electrode body (9) is located in each module unit (7) of top layer conductive film (4) missing missing second hole of the first hole, a printed electrode (9) on each of the next modular unit (7) located at an end portion of this module unit (7) (14) and on a module unit (7) ( 15).
7. 根据权利要求4所述的串并联结构的薄膜太阳电池模块组的加工方法,其特征在于:所述并排相邻的两个电池模块(1)的模块单元(7)的第一个模块单元(7a)并排相邻设置,两个相邻的的第一个模块单元(7a)的顶层导电膜(4)之间还镀有印刷连接电极(10),最后一个模块单元(7b) 的底层导电膜(3)之间通过两个相邻的第二缺孔(15)内的印刷连接电极(10)电连接。 The processing method of the thin film solar cell module 4 series-parallel structure of the group claim, wherein: said parallel adjacent two battery modules (1) of the modular unit (7) of the first module means (7a) disposed side by side adjacent to the further connecting electrode plated with printing (10) between the top conductive film (4) a first modular unit (7a) of the adjacent two of the last modular unit (7b) of by electrically connecting two adjacent second electrodes connected to the lack of printing apertures (10) in (15) between the underlying conductive film (3).
8. 根据权利要求4所述的串并联结构的薄膜太阳电池模块组的加工方法,其特征在于:所述并排相邻的两个电池模块(1)的模块单元(7)排列方向相反,上一电池模块(1)的最后一个模块单元(7b)与下一电池模块(1)的第一个模块单元(7a)相邻设置,所述上一电池模块(1)的最后一个模块单元(7b)的底层导电膜(3)与下一电池模块(1)的第一个模块单元(7a)的顶层导电膜(5)通过印刷电极(9)电连接。 The processing method of the thin film solar cell module 4 series-parallel structure of the group claim, wherein: said opposite parallel adjacent two battery modules (1) of the modular unit (7) arranged in the direction of the a battery module (1) of the last modular unit (7b) and the next battery module (1) in a first modular unit (7a) disposed adjacent to the upper module a battery (1) of the last modular unit ( the top layer conductive film (5) 7b) of the underlying conductive film (3) and the next battery module (1) in a first modular unit (7a) (9) electrically connected to the electrode by printing.
CNA2009101151347A 2009-03-30 2009-03-30 Film solar battery module set with series parallel structure and method of processing the same CN101510570A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9138419B2 (en) 2011-02-02 2015-09-22 Nitto Denko Corporation Patch preparation
TWI660518B (en) * 2014-05-27 2019-05-21 美商太陽電子公司 Shingled solar cell module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9138419B2 (en) 2011-02-02 2015-09-22 Nitto Denko Corporation Patch preparation
TWI660518B (en) * 2014-05-27 2019-05-21 美商太陽電子公司 Shingled solar cell module

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