TW201503391A - Solar cell and module comprising the same - Google Patents

Solar cell and module comprising the same Download PDF

Info

Publication number
TW201503391A
TW201503391A TW102125086A TW102125086A TW201503391A TW 201503391 A TW201503391 A TW 201503391A TW 102125086 A TW102125086 A TW 102125086A TW 102125086 A TW102125086 A TW 102125086A TW 201503391 A TW201503391 A TW 201503391A
Authority
TW
Taiwan
Prior art keywords
identification mark
solar cell
bus electrode
present
battery
Prior art date
Application number
TW102125086A
Other languages
Chinese (zh)
Inventor
Ching-Hao Tu
hao-wei Liu
Kun-Ju Li
Chun-Wen Lai
Original Assignee
Motech Ind Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motech Ind Inc filed Critical Motech Ind Inc
Priority to TW102125086A priority Critical patent/TW201503391A/en
Priority to CN201310373806.0A priority patent/CN104282663A/en
Publication of TW201503391A publication Critical patent/TW201503391A/en

Links

Classifications

    • 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

Abstract

A solar cell and a module comprising the same are provided. The solar cell comprises a cell body, a bus bar electrode disposed on the cell body and having an identification mark, and a plurality of finger bar electrodes. The identification mark can be used to identify the manufacturers or the properties of a product. The finger bar electrodes are disposed on the cell body and are located at least one side of the bus bar electrode. The identification mark can be used to identify the origin of the product, the product name, or achieve other purposes based on actual requirements. The bus bar electrode of the present invention has a recessed or hollow structure, which is different from that of a conventional bus bar electrode, so as to reduce the consumption of a conductive paste and the manufacturing costs.

Description

太陽能電池及其模組 Solar cell and its module

本發明是有關於一種電池及其模組,特別是指一種太陽能電池及其模組。 The invention relates to a battery and a module thereof, in particular to a solar battery and a module thereof.

參閱圖1、2,已知的太陽能電池包含:一電池本體71,以及位於該電池本體71上的一正面電極72與一背電極73。該電池本體71包括一具有一正面711與一背面712的基板713、一位於該基板713的正面711處的射極層714,以及一位於該射極層714上之抗反射層715。該基板713的正面711為受光面,該基板713與該射極層714透過半導體製程技術形成P-N接面,為光伏特效應的來源。該抗反射層715為減少入射光之損失以增加電流之用。該正面電極72包括數個間隔的匯流電極(bus bar electrode)721,及數個連接該等匯流電極721的指狀電極(finger bar electrode)722。該正面電極72與該背電極73配合將電池之電能導通至外部。 Referring to Figures 1 and 2, a known solar cell includes a battery body 71, and a front electrode 72 and a back electrode 73 on the battery body 71. The battery body 71 includes a substrate 713 having a front surface 711 and a back surface 712, an emitter layer 714 at the front surface 711 of the substrate 713, and an anti-reflection layer 715 on the emitter layer 714. The front surface 711 of the substrate 713 is a light-receiving surface, and the substrate 713 and the emitter layer 714 form a P-N junction through a semiconductor process technology, which is a source of photovoltaic special effects. The anti-reflective layer 715 is used to reduce the loss of incident light to increase the current. The front electrode 72 includes a plurality of spaced bus bar electrodes 721 and a plurality of finger bar electrodes 722 that connect the bus electrodes 721. The front electrode 72 cooperates with the back electrode 73 to conduct electrical energy of the battery to the outside.

由於太陽能電池具有環保、低污染的優點,因此其應用日益普遍。而製造商所製造與販售的電池數量龐大,每一批電池的製造過程,製成的產品種類或等級都有 所不同,但因為電池的外觀大同小異,因此難以區分出不同種類的電池,如此對於製造商在管理上有所不便。當電池販售給電池模組廠商之後,若模組廠商發現電池有問題時,也難以第一時間確認該電池之生產廠商。此外,若將生產廠商之識別記號標示於電池上,對模組廠商所生產之產品外觀亦會帶來困擾。所以如何改良電池結構使其具有識別性又不影響模組的外觀,乃為重要的課題。 Since solar cells have the advantages of environmental protection and low pollution, their applications are increasingly common. The number of batteries manufactured and sold by manufacturers is huge, and each batch of batteries is manufactured in the same type or grade. The difference is, but because the appearance of the battery is similar, it is difficult to distinguish between different types of batteries, which is inconvenient for the management of the manufacturer. When the battery is sold to the battery module manufacturer, if the module manufacturer finds that there is a problem with the battery, it is difficult to confirm the manufacturer of the battery for the first time. In addition, if the identification mark of the manufacturer is marked on the battery, the appearance of the product produced by the module manufacturer will also be troubled. Therefore, how to improve the battery structure to make it recognizable without affecting the appearance of the module is an important issue.

另一方面,該正面電極72在製作上,該匯流電極721與該等指狀電極722可以透過網印金屬漿料而形成,但由於金屬漿料的價格不斷升高,尤其是導電性較佳的銀漿的價格昂貴,而且已知電池的匯流電極721皆印製成整條實心的直線狀,而匯流電極721又具有一定的寬度,導致金屬漿料的用量非常多,造成電池生產成本過高。 On the other hand, the front electrode 72 is formed, and the bus electrode 721 and the finger electrodes 722 can be formed through the screen printing metal paste. However, since the price of the metal paste is continuously increased, especially the conductivity is good. The silver paste is expensive, and the bus electrode 721 of the battery is known to be printed as a whole solid straight line, and the bus electrode 721 has a certain width, resulting in a large amount of metal paste, resulting in a battery production cost. high.

因此,本發明之目的,即在提供一種具有識別性,並能降低生產成本的太陽能電池及其模組。 Accordingly, it is an object of the present invention to provide a solar cell and a module thereof that are recognizable and capable of reducing production costs.

於是,本發明太陽能電池,包含:一電池本體、一匯流電極,及數個指狀電極。該匯流電極位於該電池本體上,並具有一用於識別製造商或識別產品屬性的識別標識。該等指狀電極位於該電池本體上,並配置於該匯流電極的至少一側。 Thus, the solar cell of the present invention comprises: a battery body, a bus electrode, and a plurality of finger electrodes. The bus electrode is located on the battery body and has an identification mark for identifying the manufacturer or identifying the product attributes. The finger electrodes are located on the battery body and disposed on at least one side of the bus electrode.

本發明太陽能電池模組,包含:數個如上述的太陽能電池,及數條分別對應每一太陽能電池並將該等太陽能電池串接結合的導線。每一導線覆蓋在與其對應的該 太陽能電池的該匯流電極上,並遮蔽該識別標識。 The solar cell module of the present invention comprises: a plurality of solar cells as described above, and a plurality of wires respectively corresponding to each of the solar cells and combining the solar cells in series. Each wire covers the corresponding one The bus electrode of the solar cell is shielded from the identification mark.

本發明之功效:藉由該識別標識的設計,利用圖面變化可以達到識別產品來源、名稱或其它相關資訊的功效,又或者可依需求而賦予識別標識其它的特殊意義。正因為本發明的匯流電極設有該識別標識,使該匯流電極並非如傳統為整條實心結構,因此可節省印刷漿料用量,進而降低生產成本。 The effect of the invention: by the design of the identification mark, the effect of identifying the source, the name or other related information of the product can be achieved by using the change of the drawing surface, or the special meaning of the identification mark can be given according to the requirement. Because the bus electrode of the present invention is provided with the identification mark, the bus electrode is not as a whole solid structure as in the conventional one, so that the amount of printing slurry can be saved, thereby reducing the production cost.

1‧‧‧電池本體 1‧‧‧ battery body

11‧‧‧正面 11‧‧‧ positive

12‧‧‧背面 12‧‧‧ Back

2‧‧‧匯流電極 2‧‧‧Concurrent electrode

21‧‧‧識別標識 21‧‧‧ identification mark

211‧‧‧彎弧段 211‧‧‧ curved section

212‧‧‧延伸段 212‧‧‧Extension

22‧‧‧匯流導線 22‧‧‧Confluence wire

23‧‧‧鏤空區域 23‧‧‧ Short-cut area

24‧‧‧實心區域 24‧‧‧solid area

25‧‧‧端部 25‧‧‧End

26‧‧‧導電區域 26‧‧‧Electrical area

27‧‧‧交界處 27‧‧‧ junction

28‧‧‧集電層 28‧‧‧ collector layer

3‧‧‧指狀電極 3‧‧‧ finger electrode

41‧‧‧第一方向 41‧‧‧First direction

42‧‧‧第二方向 42‧‧‧second direction

5‧‧‧太陽能電池 5‧‧‧Solar battery

6‧‧‧導線 6‧‧‧Wire

本發明之其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中:圖1是一種已知太陽能電池的正面示意圖;圖2是該太陽能電池的側視剖視示意圖;圖3是本發明太陽能電池之一第一較佳實施例的正面示意圖;圖4是該第一較佳實施例的正面局部放大圖;圖5是該第一較佳實施例的剖視示意圖,且圖5的剖視位置如圖4的A-A線示意的位置,主要顯示一鏤空區域完全鏤空而沒有任何厚度;圖6是一類似圖5的剖視示意圖,顯示該鏤空區域的另一種形態,該鏤空區域的厚度小於一識別標識的厚度;圖7是本發明太陽能電池之一第二較佳實施例的正面局部放大圖;圖8是本發明太陽能電池之一第三較佳實施例的正面局部放大圖; 圖9是本發明太陽能電池之一第四較佳實施例的正面局部放大圖;圖10是本發明太陽能電池之一第五較佳實施例的正面局部放大圖;圖11是本發明太陽能電池之一第六較佳實施例的正面局部放大圖;圖12是該第六較佳實施例的剖視示意圖,且圖12的剖視位置如圖11的B-B線示意的位置,主要顯示一識別標識的區域完全鏤空而沒有任何厚度;圖13是一類似圖12的剖視示意圖,顯示該識別標識的另一種形態,該識別標識的厚度小於一實心區域的厚度;圖14是本發明太陽能電池之一第七較佳實施例的正面局部放大圖;圖15是本發明太陽能電池之一第八較佳實施例的正面局部放大圖;圖16是本發明太陽能電池之一第九較佳實施例的背面示意圖;圖17是本發明太陽能電池之一第十較佳實施例的背面示意圖;圖18是本發明太陽能電池模組之一較佳實施例的正面局部示意圖;及圖19是該太陽能電池模組之較佳實施例的側視示意圖。 Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a front view of a known solar cell; FIG. 2 is a side cross-sectional view of the solar cell; 3 is a front view of a first preferred embodiment of the solar cell of the present invention; FIG. 4 is a partially enlarged front view of the first preferred embodiment; FIG. 5 is a cross-sectional view of the first preferred embodiment, and 5 is a position shown in the line AA of FIG. 4, mainly showing that a hollowed out area is completely hollowed out without any thickness; FIG. 6 is a cross-sectional view similar to FIG. 5, showing another form of the hollowed out area, The thickness of the hollow region is smaller than the thickness of an identification mark; FIG. 7 is a front partial enlarged view of a second preferred embodiment of the solar cell of the present invention; and FIG. 8 is a front partial portion of a third preferred embodiment of the solar cell of the present invention. Magnified view 9 is a front partial enlarged view of a fourth preferred embodiment of the solar cell of the present invention; FIG. 10 is a front partial enlarged view of a fifth preferred embodiment of the solar cell of the present invention; and FIG. 11 is a solar cell of the present invention. A front partial enlarged view of a sixth preferred embodiment; FIG. 12 is a cross-sectional view of the sixth preferred embodiment, and the cross-sectional position of FIG. 12 is a position indicated by a line BB of FIG. The area is completely hollowed out without any thickness; FIG. 13 is a cross-sectional view similar to FIG. 12, showing another form of the identification mark, the thickness of the identification mark being less than the thickness of a solid area; FIG. 14 is a solar cell of the present invention. A front partial enlarged view of a seventh preferred embodiment; FIG. 15 is a front partial enlarged view of an eighth preferred embodiment of the solar cell of the present invention; and FIG. 16 is a ninth preferred embodiment of the solar cell of the present invention. 17 is a schematic rear view of a solar cell module according to a tenth preferred embodiment of the present invention; and FIG. 18 is a front partial view of a preferred embodiment of the solar cell module of the present invention; And Figure 19 is a side elevational view of a preferred embodiment of the solar cell module.

在本發明被詳細描述之前,應當注意在以下的說明內容中,類似的元件是以相同的編號來表示。 Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

參閱圖3、4、5,本發明太陽能電池之第一較佳實施例包含:一電池本體1,以及位於該電池本體1上的數個匯流電極2與數個指狀電極3。 Referring to Figures 3, 4 and 5, a first preferred embodiment of the solar cell of the present invention comprises: a battery body 1, and a plurality of bus electrodes 2 and a plurality of finger electrodes 3 on the battery body 1.

該電池本體1包括相反的一正面11與一背面12,該正面11即為受光面。 The battery body 1 includes an opposite front surface 11 and a rear surface 12, and the front surface 11 is a light receiving surface.

本實施例的匯流電極2位於該電池本體1的正面11,並且彼此間隔且皆沿一第一方向41延伸。由於本實施例的數個匯流電極2的結構都相同,以下僅以其中一個為例來進行說明。該匯流電極2具有一用於識別製造商或識別產品屬性的識別標識21。用於識別製造商的標識例如使用製造商的公司名稱(可以為英文、中文之全名或縮寫),或公司的代表性符號、圖案等等。而識別標識21也可用於識別產品屬性,例如可以使用電池的產品名,或者可以規範數種不同的識別標識21,每一種識別標識21可用於代表不同的電池製程所製造出的電池,該電池製程所包含的意義例如生產線批號、生產廠房等等。識別產品屬性也可以用於代表電池的等級,例如電池的轉換效率。 The bus electrodes 2 of this embodiment are located on the front surface 11 of the battery body 1, and are spaced apart from each other and extend in a first direction 41. Since the structures of the plurality of bus electrodes 2 of the present embodiment are the same, only one of them will be described below as an example. The bus electrode 2 has an identification mark 21 for identifying the manufacturer or identifying the product attributes. The identification used to identify the manufacturer, for example, uses the manufacturer's company name (which may be the full name or abbreviation of English, Chinese), or representative symbols, patterns, etc. of the company. The identification mark 21 can also be used to identify product attributes, for example, the product name of the battery can be used, or several different identification marks 21 can be specified, each of which can be used to represent a battery manufactured by a different battery process, the battery The meaning of the process includes the batch number of the production line, the production plant, and so on. Identifying product attributes can also be used to represent the level of the battery, such as the conversion efficiency of the battery.

該識別標識21可以為文字、符號、數字,或上述的任一組合。具體來說,該識別標識21可以為一個文字、符號或數字,也可以為數個相同的文字、符號或數字重複排列,也可以包含至少二相異的文字、符號或數字。所 述的文字可以包括任何國家的文字,例如中文、英文、日文…等等。該識別標識21可為至少一英文單字或該英文單字所重複組成。 The identification mark 21 can be a word, a symbol, a number, or any combination of the above. Specifically, the identification mark 21 may be a character, a symbol or a number, or may be repeatedly arranged in a plurality of identical characters, symbols or numbers, or may include at least two different characters, symbols or numbers. Place The text can include words from any country, such as Chinese, English, Japanese, etc. The identification identifier 21 can be composed of at least one English word or the English word repeated.

在本實施例中,以「LEO」英文單字為該識別標識21,並且有數個「LEO」英文單字沿著該第一方向41而間隔排列。本實施例的匯流電極2還包含二條位於該識別標識21的兩相反側的匯流導線22,該等匯流導線22皆沿著該第一方向41而彼此平行地延伸。該等匯流導線22皆與該識別標識21接觸,但實施時也可以不接觸。該等匯流導線22與該等指狀電極3連接,但實施時也可以不連接。本發明的匯流導線22的數量不限於兩條,至少一條即可。 In the present embodiment, the "LEO" English word is used as the identification mark 21, and a plurality of "LEO" English words are arranged along the first direction 41. The bus electrode 2 of the present embodiment further includes two bus bars 22 on opposite sides of the identification mark 21, and the bus wires 22 extend parallel to each other along the first direction 41. The bus bars 22 are all in contact with the identification mark 21, but may not be in contact during implementation. The bus bars 22 are connected to the finger electrodes 3, but they may not be connected during implementation. The number of the bus bars 22 of the present invention is not limited to two, at least one.

本實施例的識別標識21為實心形態,而該匯流電極2之未設有該識別標識21與該等匯流導線22的區域為一鏤空區域23。由於該匯流電極2可透過金屬漿料網印燒結形成,因此該鏤空區域23的形態又可分為兩種:其一是該鏤空區域23中完全沒有任何金屬漿料披覆(如圖5);其二是該鏤空區域23披覆有金屬漿料,但該鏤空區域23的披覆厚度(如圖6)相對於該識別標識21與該等匯流導線22的厚度較薄,因此形成凹陷,如此使該識別標識21相對地突出而可供識別。需要說明的是,雖然本實施例是以三個匯流電極2為例,但不以此為限,因為一電池上也可以僅設置一個匯流電極2。而本發明也可以僅於數個匯流電極2中的其中至少一個設置該識別標識21,如此即可達到識 別目的。 The identification mark 21 of the embodiment is in a solid form, and the area of the bus electrode 2 where the identification mark 21 and the bus line 22 are not provided is a hollow area 23. Since the bus electrode 2 can be formed by screen printing and sintering through the metal paste, the shape of the hollow region 23 can be further divided into two types: one is that the hollow region 23 is completely free of any metal slurry coating (see FIG. 5). The second is that the hollow region 23 is covered with a metal paste, but the coating thickness of the hollow region 23 (as shown in FIG. 6) is thin relative to the identification mark 21 and the thickness of the bus wires 22, thus forming a depression. The identification mark 21 is thus relatively highlighted for identification. It should be noted that, although the embodiment is exemplified by three bus electrodes 2, it is not limited thereto, because only one bus electrode 2 may be disposed on one battery. However, the present invention can also set the identification mark 21 only in at least one of the plurality of bus electrodes 2, so that the identification can be achieved. No other purpose.

因此,本發明藉由該識別標識21的設計,利用圖面變化可以達到標示製造商、產品來源、名稱或其它相關資訊的功效,又或者可依需求而賦予識別標識21其它的特殊意義。正因為本發明的匯流電極2設有該識別標識21,使該匯流電極2並非如傳統為整條實心結構,因此本發明可節省印刷漿料用量,進而降低生產成本。另一方面,當電池模組廠商反應電池有問題時,可將問題電池取回生產製造商處,並透過識別標識21來確認該問題電池的製程等相關資訊,透過研判製程條件來檢討電池發生問題的原因,從而思考改善之道,以優化生產管理流程。除此之外,將識別標識21製作於匯流電極2上,當販售給電池模組廠商後,由於模組封裝製程時,會將焊帶導線(ribbon)覆蓋於匯流電極2上,就可隱藏該識別標識21,即可達到生產製造商可具有識別標識21又不造成電池模組廠商的困擾。 Therefore, the present invention can achieve the function of marking the manufacturer, the product source, the name or other related information by using the design of the identification mark 21, or can give other special meanings of the identification mark 21 according to the requirements. Because the bus electrode 2 of the present invention is provided with the identification mark 21, the bus electrode 2 is not as a whole solid structure as in the conventional one, so the invention can save the printing slurry amount and further reduce the production cost. On the other hand, when the battery module manufacturer has a problem with the battery, the problem battery can be taken back to the manufacturer, and the identification information of the battery can be confirmed through the identification mark 21, and the battery condition can be reviewed by judging the process conditions. The cause of the problem is to think about ways to improve to optimize the production management process. In addition, the identification mark 21 is formed on the bus electrode 2, and when sold to the battery module manufacturer, the ribbon tape is covered on the bus electrode 2 due to the module packaging process. Hiding the identification mark 21 can achieve the problem that the manufacturer can have the identification mark 21 without causing the battery module manufacturer.

參閱圖3、4,本實施例的數個指狀電極3位於該電池本體1的正面11,並且皆沿著一第二方向42延伸。本實施例的第二方向42垂直該第一方向41,但實施上該第一方向41與第二方向42之間的夾角也可以略大於或略小於90度。本實施例的指狀電極3可分為四個部分,其中兩個部分的指狀電極3分別連接在兩兩相鄰的匯流電極2之間,另外兩部分的指狀電極3分別連接在外側的該二個匯流電極2的外側。需要說明的是,由於本發明也可以只設置一匯流電極2,而該等指狀電極3也可以僅配置於該單一 的匯流電極2的一側,當然也可以同時配置於兩側。 Referring to FIGS. 3 and 4, a plurality of finger electrodes 3 of the present embodiment are located on the front surface 11 of the battery body 1, and both extend along a second direction 42. The second direction 42 of the embodiment is perpendicular to the first direction 41, but the angle between the first direction 41 and the second direction 42 may be slightly larger or slightly smaller than 90 degrees. The finger electrode 3 of this embodiment can be divided into four parts, wherein the finger electrodes 3 of the two parts are respectively connected between two adjacent bus electrodes 2, and the finger electrodes 3 of the other two parts are respectively connected to the outside. The outer sides of the two bus electrodes 2 are. It should be noted that, as the present invention, only one bus electrode 2 may be disposed, and the finger electrodes 3 may be disposed only in the single One side of the bus electrode 2 can of course be arranged on both sides at the same time.

參閱圖7,本發明太陽能電池之第二較佳實施例的結構與該第一較佳實施例大致相同,不同的地方在於:本實施例的匯流電極2的識別標識21包含數個彼此間隔的希臘文字Ω,該等希臘文字Ω皆包括一彎弧段211,以及二連接在該彎弧段211的兩相反端的延伸段212。該等希臘文字Ω的彎弧段211都朝向同一側,該等延伸段212則靠近另一側,而且該等延伸段212皆沿該第一方向41延伸且位於同一直線上。 Referring to FIG. 7, the structure of the second preferred embodiment of the solar cell of the present invention is substantially the same as that of the first preferred embodiment. The difference is that the identification mark 21 of the bus electrode 2 of the present embodiment includes a plurality of intervals. The Greek word Ω, the Greek characters Ω include a curved arc 211, and two extensions 212 connected at opposite ends of the curved arc 211. The arcuate segments 211 of the Greek characters Ω are all facing the same side, and the extensions 212 are adjacent to the other side, and the extensions 212 all extend along the first direction 41 and lie on the same line.

需要說明的是,該等希臘文字Ω的設置方向不限於本實施例所述,例如也可以順時鐘轉動90度、180度、270度或其他角度而設置。此外,該識別標識21實際上只要包含至少一希臘文字Ω就可以達到識別效果。 It should be noted that the direction in which the Greek characters Ω are disposed is not limited to the embodiment, and may be set, for example, by 90 degrees, 180 degrees, 270 degrees, or other angles. In addition, the identification mark 21 can actually achieve the recognition effect as long as it contains at least one Greek character Ω.

參閱圖8,本發明太陽能電池之第三較佳實施例的結構與該第一較佳實施例大致相同,不同的地方在於:本實施例的識別標識21包含數個用於代表公司名稱之「MOTECH」之英文單字。 Referring to FIG. 8, the structure of the third preferred embodiment of the solar cell of the present invention is substantially the same as that of the first preferred embodiment. The difference is that the identification mark 21 of the embodiment includes a plurality of names for representing the company name. English word for MOTECH".

參閱圖9,本發明太陽能電池之第四較佳實施例的結構與該第一較佳實施例大致相同,不同的地方在於:本實施例的識別標識21只包含一個實心形態的「LEO」。該匯流電極2沿著該第一方向41延伸且具有二個相反的端部25(圖9只示出一個),該識別標識21可以位於該等端部25的其中一個上。又,若該識別標識21包含至少兩個「LEO」時,該等「LEO」可以同時位於同一側的端部25上,也 可以分別位於該等端部25上。因此,本發明的識別標識21可以位於該等端部25的其中一個上。 Referring to Fig. 9, the structure of the fourth preferred embodiment of the solar cell of the present invention is substantially the same as that of the first preferred embodiment. The difference is that the identification mark 21 of the embodiment includes only a solid form of "LEO". The bus electrode 2 extends along the first direction 41 and has two opposite ends 25 (only one is shown in FIG. 9), and the identification mark 21 can be located on one of the ends 25. Moreover, if the identification mark 21 includes at least two "LEOs", the "LEOs" may be simultaneously located at the end portion 25 on the same side, They can be located on the ends 25, respectively. Therefore, the identification mark 21 of the present invention can be located on one of the end portions 25.

參閱圖10,本發明太陽能電池之第五較佳實施例的結構與該第一較佳實施例大致相同,不同的地方在於:本實施例的匯流電極2包括一實心區域24,以及數個彼此間隔地位於該實心區域24中的鏤空區域23,本實施例的識別標識21「LEO」為實心形態,並且分別位於該等鏤空區域23中。需注意的是,本實施例不以設置數個鏤空區域23為必要,只要設置相鄰的一實心區域24與一鏤空區域23,並使該實心形態的識別標識21位於該鏤空區域23中即可。本實施例的識別標識21包含數個實心的產品名「LEO」文字,當然,實施時也可以使用其它的文字、符號或數字代替,例如於每一鏤空區域23中設置一實心的希臘文字Ω或其它圖案。 Referring to FIG. 10, the structure of the fifth preferred embodiment of the solar cell of the present invention is substantially the same as that of the first preferred embodiment, except that the bus electrode 2 of the present embodiment includes a solid region 24 and a plurality of each other. The hollow areas 23 spaced apart in the solid area 24, the identification marks 21 "LEO" of the present embodiment are in a solid form, and are respectively located in the hollow areas 23. It should be noted that, in this embodiment, it is not necessary to provide a plurality of hollow areas 23, as long as an adjacent solid area 24 and a hollow area 23 are disposed, and the identification mark 21 of the solid form is located in the hollow area 23. can. The identification mark 21 of the embodiment includes a plurality of solid product names "LEO" characters. Of course, other characters, symbols or numbers may be used instead, for example, a solid Greek character Ω is set in each hollow area 23. Or other patterns.

參閱圖11、12、13,本發明太陽能電池之第六較佳實施例的結構與該第一較佳實施例大致相同,不同的地方在於:本實施例的該等「LEO」文字為鏤空形態,該匯流電極2之未形成有該識別標識21的區域則為一實心區域24。本實施例形成該匯流電極2時,主要是於該實心區域24披覆金屬漿料,該識別標識21的區域未披覆金屬漿料而完全鏤空(如圖12),或者該識別標識21區域披覆較薄的金屬漿料而使其厚度小於該實心區域24的厚度(如圖13),因此形成凹陷。該識別標識21相對於該實心區域24較低陷的設計,使該識別標識21可供辨識。 Referring to Figures 11, 12 and 13, the structure of the sixth preferred embodiment of the solar cell of the present invention is substantially the same as that of the first preferred embodiment, except that the "LEO" characters of the present embodiment are hollowed out. The area of the bus electrode 2 where the identification mark 21 is not formed is a solid area 24. When the bus electrode 2 is formed in this embodiment, the metal paste is mainly covered in the solid region 24, and the region of the identification mark 21 is not completely covered with the metal paste and is completely hollowed out (as shown in FIG. 12), or the identification mark 21 region The thin metal paste is coated to a thickness smaller than the thickness of the solid region 24 (Fig. 13), thus forming a depression. The design of the identification mark 21 relative to the solid area 24 is such that the identification mark 21 is identifiable.

當然,本實施例之鏤空形態的識別標識21也可以使用其它的文字、符號或數字,例如以數個鏤空的「MOTECH」重複排列,或者以數個鏤空的希臘文字Ω或其它圖案重複排列。 Of course, the identification mark 21 of the hollow form of the embodiment may also use other characters, symbols or numbers, for example, by repeating a plurality of hollow "MOTECH" or by repeating a plurality of hollow Greek characters Ω or other patterns.

參閱圖14,本發明太陽能電池之第七較佳實施例的結構與該第六較佳實施例大致相同,不同的地方在於:本實施例的匯流電極2的識別標識21包含至少二彼此間隔且沿著該第一方向41排列的希臘文字Ω,該等希臘文字Ω呈圖形對稱地交錯排列,任兩相鄰的希臘文字的彎弧段211朝向相反方向,進而呈現一正一反的排列。 Referring to FIG. 14, the structure of the seventh preferred embodiment of the solar cell of the present invention is substantially the same as that of the sixth preferred embodiment, except that the identification mark 21 of the bus electrode 2 of the present embodiment includes at least two The Greek characters Ω arranged along the first direction 41 are arranged in a pattern symmetrically staggered, and the curved segments 211 of any two adjacent Greek characters face in opposite directions, thereby exhibiting a positive and a negative arrangement.

由於進行電池的模組封裝時,數個電池為陣列式排列,而且每一電池的正面匯流電極必須透過焊帶導線與相鄰的另一個電池的背面匯流電極電連接。而本實施例的匯流電極2之識別標識21圖案交錯對稱設計,有助於維持整個匯流電極2的結構對稱性,進而能在減少印刷漿料的同時還提供足夠的焊接面積,以利於與焊帶導線維持良好的焊接結合力。 Due to the module packaging of the battery, several batteries are arranged in an array, and the front bus electrode of each battery must be electrically connected to the back side bus electrode of the adjacent other battery through the ribbon wire. The pattern of the identification mark 21 of the bus electrode 2 of the present embodiment is designed to be symmetrical and symmetrical, which helps to maintain the structural symmetry of the entire bus electrode 2, thereby providing a sufficient welding area while reducing the printing paste to facilitate welding. The wire has a good weld bond.

參閱圖15,本發明太陽能電池之第八較佳實施例的結構與該第七較佳實施例大致相同,本實施例的識別標識21同樣包含至少二個沿著該第一方向41而呈圖形對稱地交錯排列的希臘文字Ω,兩實施例不同的地方在於:本實施例的識別標識21為實心形態,該等希臘文字Ω皆包括一彎弧段211,以及二連接在該彎弧段211的兩相反端的延伸段212,該等希臘文字Ω的延伸段212皆沿該第一方向 41延伸且位於同一直線上。相鄰兩希臘文字Ω的延伸段212可以相連接,也可以不連接。 Referring to FIG. 15, the structure of the eighth preferred embodiment of the solar cell of the present invention is substantially the same as that of the seventh preferred embodiment. The identification mark 21 of the embodiment also includes at least two patterns along the first direction 41. The symmetrically staggered Greek characters Ω, the difference between the two embodiments is that the identification mark 21 of the embodiment is a solid form, the Greek characters Ω each include a curved arc 211, and two are connected to the curved arc 211. The two opposite end extensions 212, the extensions 212 of the Greek characters Ω are all along the first direction 41 extends and lies on the same line. The extensions 212 of the adjacent two Greek characters Ω may or may not be connected.

由上述各實施例可知,本發明的識別標識21可以為實心形態或鏤空形態(包含完全鏤空或相對凹陷),當然也可以為凹凸立體形態的配合,只要能達到可供辨識的目的即可。而上述各實施例雖然都是改良該太陽能電池的正面11的匯流電極2結構,但在實施時,由於該太陽能電池的背面也會設有電極,因此本發明上述各實施例所舉的識別標識21的各種設計也可以應用於電池的該背面上的匯流電極;因此,本發明實施時,具有該識別標識的該匯流電極可以位於該正面11,或者也可以位於該背面。更進一步地,該電池本體1的該正面11與該背面也可以同時具有相同的識別標識;此設計的功效在於:當其中一面受損而遭到退貨時,電池製造廠商可以由另一面辨識是否確實為其所生產,或者確認產品型號。 It can be seen from the above embodiments that the identification mark 21 of the present invention may be in a solid form or a hollow form (including completely hollowed out or relatively concave), and may of course be a combination of the concave and convex solid forms, as long as the object for identification can be achieved. In the above embodiments, the structure of the bus electrode 2 of the front surface 11 of the solar cell is improved. However, in the implementation, since the back surface of the solar cell is also provided with electrodes, the identification marks of the above embodiments of the present invention are provided. The various designs of 21 can also be applied to the bus electrodes on the back side of the battery; therefore, in the practice of the present invention, the bus electrode having the identification mark can be located on the front side 11, or can also be located on the back side. Further, the front surface 11 and the back surface of the battery body 1 can also have the same identification mark at the same time; the effect of the design is that when one side is damaged and returned, the battery manufacturer can recognize whether the other side is It is indeed produced for it, or confirm the product model.

此外,該識別標識21也可以包含至少二相異英文單字與至少一符號,例如「MOTECH LEO2.0 Ω」。或者,該識別標識21可以包含至少二相異英文單字與至少一數字,例如「MOTECH LEO1.0」、「MOTECH LEO2.0」…等等。藉此除了可辨識製造廠商外,也方便廠商於製造過程中於廠內進行產品控管。而且產品標識通常會伴隨版本不同或型號不同而有不同的標識,因此利用例如「LEO1.0」、「LEO2.0」、「LEO3.0」等表示方式,有利於廠內生產製造品管方便管控。 In addition, the identification mark 21 may also include at least two distinct English words and at least one symbol, such as "MOTECH LEO 2.0 Ω". Alternatively, the identification mark 21 may include at least two distinct English words and at least one number, such as "MOTECH LEO 1.0", "MOTECH LEO 2.0", and the like. In addition to identifying the manufacturer, it is also convenient for the manufacturer to control the product in the factory during the manufacturing process. Moreover, product identification usually has different logos depending on the version or model. Therefore, the use of such expressions as "LEO1.0", "LEO2.0", "LEO3.0", etc., is conducive to the convenience of manufacturing and manufacturing in the factory. Control.

參閱圖16,本發明太陽能電池之第九較佳實施例的結構與該第一較佳實施例大致相同,但本實施例是針對電池本體1之一相反於其正面的背面12上的電極進行改良,該背面12上的數個匯流電極2中的每一匯流電極2包含一識別標識21,以及一圍繞該識別標識21的導電區域26,且該背面12上還設有一個幾乎呈整面設置且連接該數個匯流電極2的集電層28。該識別標識21包含數個間隔且呈圖形對稱地交錯排列的希臘文字Ω。本實施例的每一匯流電極2的導電區域26的材質為銀(圖中以斜線區域示意),識別標識21與該集電層28的材質皆為鋁(圖中以點狀區域示意),而且鋁與銀的交界處27的材料重疊,所述交界處27包含各希臘文字Ω與該導電區域26的交界,以及該導電區域26與匯流電極2以外的區域的交界。補充說明的是,該識別標識21的該數個文字也可以呈鏤空形態,所述鏤空形態可以為未披覆任何金屬漿料而完全鏤空,或者僅披覆較薄的金屬漿料而使其厚度相對較薄。 Referring to Fig. 16, the structure of the ninth preferred embodiment of the solar cell of the present invention is substantially the same as that of the first preferred embodiment, but the embodiment is directed to the electrode on the back surface 12 of one of the battery body 1 opposite to the front surface thereof. Preferably, each of the plurality of bus electrodes 2 on the back surface 12 includes an identification mark 21, and a conductive area 26 surrounding the identification mark 21, and the back surface 12 is further provided with an almost full surface. A collector layer 28 of the plurality of bus electrodes 2 is disposed and connected. The identification mark 21 contains a plurality of Greek characters Ω which are interlaced in a pattern and symmetrically arranged. The material of the conductive region 26 of each of the bus electrodes 2 of the present embodiment is silver (indicated by a hatched area in the figure), and the materials of the identification mark 21 and the collector layer 28 are all aluminum (indicated by a dotted region in the figure). Further, the material of the junction 27 of aluminum and silver overlaps, and the interface 27 includes the boundary between each Greek character Ω and the conductive region 26, and the boundary between the conductive region 26 and a region other than the bus electrode 2. It should be noted that the plurality of characters of the identification mark 21 may also be in a hollow form, and the hollow form may be completely hollowed out without covering any metal paste, or only a thin metal paste may be coated to make it The thickness is relatively thin.

參閱圖17,本發明太陽能電池之第十較佳實施例的結構與該第九較佳實施例大致相同,本實施例之電池的該背面12上的每一匯流電極2包含一識別標識21,該識別標識21包含數個沿該第一方向41間隔且呈圖形對稱地交錯排列的希臘文字Ω。本實施例之識別標識21的材質為銀,而該背面12上之該識別標識21以外的區域的材質為鋁,而且鋁與銀的交界處27的材料重疊。 Referring to FIG. 17, the structure of the tenth preferred embodiment of the solar cell of the present invention is substantially the same as that of the ninth preferred embodiment. Each of the bus electrodes 2 on the back surface 12 of the battery of the present embodiment includes an identification mark 21, The identification mark 21 includes a plurality of Greek characters Ω which are spaced apart in the first direction 41 and are staggered in a pattern symmetry. The material of the identification mark 21 of the present embodiment is silver, and the material of the area other than the identification mark 21 on the back surface 12 is made of aluminum, and the material of the boundary portion 27 of aluminum and silver overlaps.

本發明的太陽能電池可以與其它元件封裝結合 而構成一太陽能電池模組,接著即說明本發明的模組結構。 The solar cell of the invention can be combined with other component packages To form a solar cell module, the module structure of the present invention will be described next.

參閱圖18、19,本發明太陽能電池模組之較佳實施例,包含:數個太陽能電池5以及數條導線6。當然,在模組中還包含分別位於該等太陽能電池5的上方與下方的一上基材與一下基材,以及一用於將該等太陽能電池5固定住的封裝材,但由於該上基材、下基材與封裝材非本發明的改良重點,所以不再說明,圖中亦未示出。 Referring to Figures 18 and 19, a preferred embodiment of the solar cell module of the present invention comprises: a plurality of solar cells 5 and a plurality of wires 6. Of course, the module further includes an upper substrate and a lower substrate respectively above and below the solar cells 5, and a packaging material for fixing the solar cells 5, but the upper substrate The material, the lower substrate and the packaging material are not the improvement points of the present invention, so they are not described, and are not shown in the drawings.

本實施例的該等太陽能電池5呈陣列式排列,而且該等太陽能電池5可以為前述任何實施例中的電池。 The solar cells 5 of the present embodiment are arranged in an array, and the solar cells 5 may be batteries of any of the foregoing embodiments.

本實施例之該等導線6分別對應每一太陽能電池5的匯流電極2而焊接,進而將該等太陽能電池5串接結合。每一導線6覆蓋在與其對應的該太陽能電池5的該匯流電極2上,並遮蔽該識別標識21。具體而言,每一導線6是焊接於其中一太陽能電池5的正面11的匯流電極2與相鄰的另一太陽能電池5的背面12的匯流電極上。 The wires 6 of the present embodiment are respectively soldered corresponding to the bus electrodes 2 of each solar cell 5, and the solar cells 5 are connected in series. Each of the wires 6 is covered on the bus electrode 2 of the solar cell 5 corresponding thereto and shields the identification mark 21. Specifically, each of the wires 6 is welded to the bus electrode 2 of the front surface 11 of one of the solar cells 5 and the bus electrode of the back surface 12 of the adjacent other solar cell 5.

惟以上所述者,僅為本發明之較佳實施例而已,當不能以此限定本發明實施之範圍,即大凡依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本發明專利涵蓋之範圍內。 The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

1‧‧‧電池本體 1‧‧‧ battery body

11‧‧‧正面 11‧‧‧ positive

2‧‧‧匯流電極 2‧‧‧Concurrent electrode

21‧‧‧識別標識 21‧‧‧ identification mark

3‧‧‧指狀電極 3‧‧‧ finger electrode

41‧‧‧第一方向 41‧‧‧First direction

42‧‧‧第二方向 42‧‧‧second direction

Claims (15)

一種太陽能電池,包含:一電池本體;一匯流電極,位於該電池本體上,並具有一用於識別製造商或識別產品屬性的識別標識;及數個指狀電極,位於該電池本體上,並配置於該匯流電極的至少一側。 A solar cell comprising: a battery body; a bus electrode located on the battery body and having an identification mark for identifying a manufacturer or identifying a product property; and a plurality of finger electrodes located on the battery body, and Disposed on at least one side of the bus electrode. 如請求項1所述的太陽能電池,其中,該識別標識為至少一英文單字或該英文單字所重複組成。 The solar cell of claim 1, wherein the identification identifier is a repetition of at least one English word or the English word. 如請求項1所述的太陽能電池,其中,該識別標識包含至少二相異英文單字與至少一符號,或包含至少二相異英文單字與至少一數字。 The solar cell of claim 1, wherein the identification mark comprises at least two distinct English words and at least one symbol, or at least two distinct English words and at least one number. 如請求項1所述的太陽能電池,其中,該識別標識包含至少一希臘文字。 The solar cell of claim 1, wherein the identification mark comprises at least one Greek character. 如請求項4所述的太陽能電池,其中,該識別標識包含至少一希臘文字為Ω。 The solar cell of claim 4, wherein the identification mark comprises at least one Greek character being Ω. 如請求項1所述的太陽能電池,其中,該識別標識包含至少二希臘文字,該等希臘文字呈圖形對稱地交錯排列。 The solar cell of claim 1, wherein the identification mark comprises at least two Greek characters, the Greek characters being staggered in a pattern symmetrically. 如請求項6所述的太陽能電池,其中,該識別標識包含至少二希臘文字為Ω,該等希臘文字Ω呈圖形對稱地交錯排列。 The solar cell of claim 6, wherein the identification mark comprises at least two Greek characters being Ω, and the Greek characters Ω are staggered in a pattern symmetrically. 如請求項1至7中任一項所述的太陽能電池,其中,該識別標識為空心形態。 The solar cell of any one of claims 1 to 7, wherein the identification mark is in a hollow form. 如請求項1至7中任一項所述的太陽能電池,其中,該識別標識為實心形態。 The solar cell of any one of claims 1 to 7, wherein the identification mark is in a solid form. 如請求項1至7中任一項所述的太陽能電池,其中,該識別標識為凹凸立體形態。 The solar cell according to any one of claims 1 to 7, wherein the identification mark is a concave-convex stereoscopic form. 如請求項1所述的太陽能電池,其中,該電池本體包括相反的一正面與一背面,具有該識別標識的該匯流電極位於該正面。 The solar cell of claim 1, wherein the battery body comprises an opposite front surface and a back surface, and the bus electrode having the identification mark is located on the front surface. 如請求項1所述的太陽能電池,其中,該電池本體包括相反的一正面與一背面,具有該識別標識的該匯流電極位於該背面。 The solar cell of claim 1, wherein the battery body comprises an opposite front surface and a back surface, and the bus electrode having the identification mark is located on the back surface. 如請求項1所述的太陽能電池,其中,該匯流電極具有二個相反的端部,該識別標識位於該等端部的其中至少一個上。 The solar cell of claim 1, wherein the bus electrode has two opposite ends, and the identification mark is located on at least one of the ends. 如請求項1所述的太陽能電池,其中,該電池本體包括相反的一正面與一背面,且該正面與該背面皆同時具有相同的識別標識。 The solar cell of claim 1, wherein the battery body comprises an opposite front side and a back side, and the front side and the back side both have the same identification mark. 一種太陽能電池模組,包含:數個如請求項1所述之太陽能電池;及數條導線,分別對應每一太陽能電池並將該等太陽能電池串接結合,每一導線覆蓋在與其對應的該太陽能電池的該匯流電極上,並遮蔽該識別標識。 A solar cell module comprising: a plurality of solar cells as claimed in claim 1; and a plurality of wires respectively corresponding to each of the solar cells and combining the solar cells in series, each wire covering the corresponding one The bus electrode of the solar cell is shielded from the identification mark.
TW102125086A 2013-07-12 2013-07-12 Solar cell and module comprising the same TW201503391A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW102125086A TW201503391A (en) 2013-07-12 2013-07-12 Solar cell and module comprising the same
CN201310373806.0A CN104282663A (en) 2013-07-12 2013-08-23 Solar energy cell and its module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW102125086A TW201503391A (en) 2013-07-12 2013-07-12 Solar cell and module comprising the same

Publications (1)

Publication Number Publication Date
TW201503391A true TW201503391A (en) 2015-01-16

Family

ID=52257415

Family Applications (1)

Application Number Title Priority Date Filing Date
TW102125086A TW201503391A (en) 2013-07-12 2013-07-12 Solar cell and module comprising the same

Country Status (2)

Country Link
CN (1) CN104282663A (en)
TW (1) TW201503391A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100279458A1 (en) * 2009-04-29 2010-11-04 Du Pont Apollo Ltd. Process for making partially transparent photovoltaic modules
EP2590226A4 (en) * 2010-06-30 2015-06-17 Sanyo Electric Co Solar cell module
CN102180043B (en) * 2010-12-02 2012-08-08 浚鑫科技股份有限公司 Method for printing pattern on solar battery sheet

Also Published As

Publication number Publication date
CN104282663A (en) 2015-01-14

Similar Documents

Publication Publication Date Title
US20160276499A1 (en) Solar cell
WO2012002216A1 (en) Solar cell module
US20180062002A1 (en) Solar cell
CN203644794U (en) Solar cell
TWM426876U (en) Solar cell
CN203423194U (en) Electrode structure of solar cell
TW201503391A (en) Solar cell and module comprising the same
US20150059829A1 (en) Solar cell module, solar cell and method of manufacturing the same
CN104221161B (en) Solar cell module and solar cell module manufacturing method
CN104241404A (en) Solar cell and module thereof
TWI482289B (en) Solar cell
TWI509816B (en) Solar cell with wide and narrow electrode blocks and solar cell using the same
WO2016143249A1 (en) Solar battery module
JPWO2013140615A1 (en) Solar cell
TWI583010B (en) Solar Cell
TWM526758U (en) Solar cell
JP2017050514A (en) Solar battery module
TW201431096A (en) Solar cell, module comprising the same and method of manufacturing the same
CN218632061U (en) Solar cell and photovoltaic module
CN203895469U (en) Electrode structure and solar cell provided with the same
JP5906422B2 (en) Solar cell and solar cell module
CN218241859U (en) Solar cell and photovoltaic module
TWI478364B (en) Solar cell and module comprising the same
CN101853892B (en) Nonlinear-designed solar cell with light receiving surface electrode
TWM467180U (en) Electrode structure of solar cell