WO2019062758A1 - 一种电池片串联组件 - Google Patents

一种电池片串联组件 Download PDF

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Publication number
WO2019062758A1
WO2019062758A1 PCT/CN2018/107588 CN2018107588W WO2019062758A1 WO 2019062758 A1 WO2019062758 A1 WO 2019062758A1 CN 2018107588 W CN2018107588 W CN 2018107588W WO 2019062758 A1 WO2019062758 A1 WO 2019062758A1
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Prior art keywords
battery
insulating layer
series assembly
chip series
conductive material
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PCT/CN2018/107588
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English (en)
French (fr)
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王娟
刘亚锋
金浩
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浙江晶科能源有限公司
晶科能源有限公司
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Application filed by 浙江晶科能源有限公司, 晶科能源有限公司 filed Critical 浙江晶科能源有限公司
Priority to US16/335,685 priority Critical patent/US20210359148A1/en
Priority to JP2019515917A priority patent/JP6903746B2/ja
Priority to EP18857413.1A priority patent/EP3525245A4/en
Publication of WO2019062758A1 publication Critical patent/WO2019062758A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H01L31/0508—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module the interconnection means having a particular shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/02016—Circuit arrangements of general character for the devices
    • H01L31/02019—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/02021—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention relates to the field of photovoltaic technology, and more particularly to a battery chip series assembly.
  • the single crystal and polycrystalline technology crystalline silicon solar photovoltaic module is mainly a structure in which a string soldering strip is connected in series.
  • FIG. 1 is a schematic structural diagram of a battery chip series assembly provided by the prior art.
  • the series connection unit of the battery is processed by series welding.
  • the welding strip is divided into two groups, the number and width of the two sets of welding strips are equal, and the two sets of welding strips overlap to form a welding strip net;
  • Between the upper and lower two sets of welding strips align the welding strip and the main grid line of the battery, and weld the upper set of welding strips to the front side of the battery sheet, and the lower set of welding strips are welded to the back side of the battery sheet;
  • the soldering pressure point is located between two adjacent cells; the solder ribbon connecting the front side of one of the battery sheets and the solder ribbon on the back side of the other battery sheet are cut to form a battery string connected in series with each other.
  • the soldering pressure point In order to prevent the soldering pressure point from being soldered to the front surface of the solder ribbon battery sheet, the soldering pressure point is prevented from being soldered to the front surface of the solder ribbon battery sheet, and white space is left between each adjacent two battery sheets, thereby causing the battery sheet.
  • the efficiency of the series components is low.
  • the technical problem to be solved by the present invention is how to increase the effective area of the battery chip series assembly.
  • the present invention provides a battery chip series assembly.
  • the present invention provides the following technical solutions:
  • a battery chip series assembly comprising a plurality of battery cell units, each of the battery cell units comprising a plurality of battery cells, wherein each of the battery cell units has a back surface of one of the adjacent two battery cells
  • the conductive material is electrically connected to the front surface of the other battery sheet, and the portions of the conductive material in close contact with the two battery sheets are respectively provided with a first insulating layer and a second insulating layer.
  • the conductive material includes a connection portion between adjacent two battery sheets, a first conductive portion connecting the back surface of one of the battery sheets, and a back surface of the other battery sheet. a second conductive portion.
  • the first conductive portion and the second conductive portion are perpendicular to the connecting portion.
  • the first insulating layer and the second insulating layer are part of the connecting portion.
  • the first insulating layer is disposed on the battery sheet, and the second insulating layer is disposed on the battery sheet.
  • a plurality of sets of the battery chip units are arranged in parallel along the width direction of the battery chip unit.
  • a plurality of sets of the battery chip units are arranged in parallel along the length direction of the battery chip unit.
  • the junction box of the solar cell panel assembly is disposed in the middle of a plurality of sets of the battery cell units.
  • first insulating layer and the second insulating layer are respectively disposed at portions where the conductive material is in close contact with the two battery sheets, adjacent battery sheets are The two can be in close contact and basically achieve seamless contact, thereby increasing the effective area of the series connection of the battery sheets.
  • FIG. 1 is a schematic structural diagram of a battery chip unit according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of connection of adjacent battery sheets according to an embodiment of the present invention.
  • FIG. 3 and FIG. 4 are schematic structural diagrams of a battery sheet according to an embodiment of the present invention.
  • FIG. 5 is a schematic top plan view of a battery cell unit according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a battery chip series assembly according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of another battery chip series assembly according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of still another series of battery sheets according to an embodiment of the present invention.
  • 100 is a cell unit, 101 is a cell, 102 is a conductive material, 103 is a first insulating layer, and 104 is a second insulating layer.
  • the core of the present invention is to disclose a battery chip series assembly to reduce the effective area of the battery chip series assembly.
  • the battery chip series assembly in the embodiment of the present invention includes a plurality of battery cell units, each of the battery cell units includes a plurality of battery cells 101, and each of the battery cell units has two adjacent cells.
  • the back surface of one of the battery sheets 101 in the sheet 101 is electrically connected to the front surface of the other battery sheet 101 through the conductive material 102.
  • the portions of the conductive material 102 in close contact with the two battery sheets 101 are respectively provided with a first insulating layer 103 and a second insulating layer. Layer 104.
  • the adjacent battery sheets 101 can be in close contact with each other. Seamless contact is achieved, which increases the effective area of the cell series assembly.
  • the adjacent battery sheets 101 in the cell unit are in close contact but there is no lamination, and therefore, the cell sheet 101 is not cracked.
  • the conductive material 102 includes a connecting portion between two adjacent battery sheets 101, a first conductive portion connecting the back surface of one of the battery sheets 101, and a second conductive portion connecting the back surface of the other battery sheet 101. unit.
  • the first conductive portion and the second conductive portion are perpendicular to the connecting portion.
  • the first insulating layer 103 and the second insulating layer 104 are part of the connection portion, or the first insulating layer 103 is disposed on the battery sheet 101, and the second insulating layer 104 is disposed on the battery sheet 101.
  • the plurality of battery cell units are arranged in parallel along the width direction of the cell unit.
  • the plurality of sets of cell units are arranged in parallel along the length direction of the cell unit.
  • the junction box of the solar cell chip 101 assembly is disposed in the middle of the plurality of battery cells.

Abstract

本发明公开了一种电池片串联组件，包括多组电池片单元，每组所述电池片单元包括多个电池片，每组所述电池片单元中，相邻的两个电池片中的一个电池片的背面通过导电材料与另一个电池片的正面电连接，所述导电材料与两个电池片紧密接触的部位分别设置有第一绝缘层和第二绝缘层。本发明实施例中由于在所述导电材料与两个电池片紧密接触的部位分别设置有第一绝缘层和第二绝缘层，因此，相邻的电池片之间可以紧密接触，基本实现无缝接触，从而增加了电池片串联组件的有效面积。

Description

一种电池片串联组件 技术领域
本申请要求于2017年09月27日提交中国专利局、申请号为201710888261.5、发明名称为“一种电池片串联组件”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及光伏技术领域，更具体地说，涉及一种电池片串联组件。
背景技术
随着全球太阳能装机量的日益增加，可以使用的光伏土地越来越少。市场上对于单片组件效率提升的需求越来越高。目前，单晶及多晶技术晶硅太阳能光伏组件方式主要是用串焊带串联起来的结构。
请参阅图1，图1为现有技术所提供的电池片串联组件的结构示意图。
该电池片串联组件采用串焊的形式进行加工，具体的，将焊带分成上下两组，两组焊带的数量和宽度相等，两组焊带重叠，构成焊带线网；将电池片放入上下两组焊带之间，对准焊带和电池片主栅线，将上面一组焊带与电池片正面焊接，下面一组焊带与电池片背面焊接；焊接上下两组焊带，焊接压点位于相邻两片电池之间；切断连接其中一个电池片正面的焊带，以及另外一个电池片背面的焊带，从而形成相互串联的电池串。为防止焊接压点与正面焊接有焊带电池片的背面接触，防止焊接压点与背面焊接有焊带电池片的正面接触，每相邻两片电池片中间都有留白，从而导致电池片串联组件的效率变低。
因此，如何增加电池片串联组件的有效面积，成为本领域技术人员亟待解决的技术问题。
发明内容
有鉴于此，本发明所要解决的技术问题是如何增加电池片串联组件的有效面积，为此，本发明提供了一种电池片串联组件。
为实现上述目的，本发明提供如下技术方案：
一种电池片串联组件，包括多组电池片单元，每组所述电池片单元包括多个电池片，每组所述电池片单元中，相邻的两个电池片中的一个电池片的背面通过导电材料与另一个电池片的正面电连接，所述导电材料与两个电池片紧密接触的部位分别设置有第一绝缘层和第二绝缘层。
优选地，在上述电池片串联组件中，所述导电材料包括位于相邻的两个电池片之间的连接部，连接其中一个电池片背面的第一导电部，和连接另一个电池片背面的第二导电部。
优选地，在上述电池片串联组件中，所述第一导电部和所述第二导电部与所述连接部垂直。
优选地，在上述电池片串联组件中，所述第一绝缘层和所述第二绝缘层为所述连接部的一部分。
优选地，在上述电池片串联组件中，所述第一绝缘层设置在所述电池片上，所述第二绝缘层设置在所述电池片上。
优选地，在上述电池片串联组件中，多组所述电池片单元沿所述电池片单元的宽度方向平行布置。
优选地，在上述电池片串联组件中，多组所述电池片单元沿所述电池片单元的长度方向平行布置。
优选地，在上述电池片串联组件中，太阳能电池片组件的接线盒设置在多组所述电池片单元中间。
从上述的技术方案可以看出，本发明实施例中由于在所述导电材料与两个电池片紧密接触的部位分别设置有第一绝缘层和第二绝缘层，因此，相邻的电池片之间可以紧密接触，基本实现无缝接触，从而增加了电池片串联组件的有效面积。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例所提供的电池片单元的结构示意图；
图2为本发明实施例所提供的相邻的电池片的连接示意图；
图3和图4为本发明实施例所提供的电池片的结构示意图；
图5为本发明实施例所提供的电池片单元的俯视示意图；
图6为本发明实施例所提供的一种电池片串联组件的结构示意图；
图7为本发明实施例所提供的另一种电池片串联组件的结构示意图；
图8为本发明实施例所提供的又一种电池片串联组件的结构示意图。
其中，100为电池片单元、101为电池片、102为导电材料、103为第一绝缘层、104为第二绝缘层。
具体实施方式
本发明的核心是公开一种电池片串联组件，以减增加电池片串联组件的有效面积。
以下，参照附图对实施例进行说明。此外，下面所示的实施例不对权利要求所记载的发明内容起任何限定作用。另外，下面实施例所表示的构成的全部内容不限于作为权利要求所记载的发明的解决方案所必需的。
请参阅图1至图5，本发明实施例中的电池片串联组件包括多组电池片单元，每组电池片单元包括多个电池片101，每组电池片单元中，相邻的两个电池片101中的一个电池片101的背面通过导电材料102与另一个电池片101的正面电连接，导电材料102与两个电池片101紧密接触的部位分别设置有第一绝缘层103和第二绝缘层104。
本发明实施例中由于在导电材料102与两个电池片101紧密接触的部位分别设置有第一绝缘层103和第二绝缘层104，因此，相邻的电池片101之间可以紧密接触，基本实现无缝接触，从而增加了电池片串联组件的有效面积。
另外，本发明实施例中电池片单元中相邻的电池片101紧密接触但是并不存在叠片，因此，不会造成电池片101的隐裂。
本发明实施例中，导电材料102包括位于相邻的两个电池片101之间的连接部，连接其中一个电池片101背面的第一导电部，和连接另一个电池片101背面的第二导电部。
为了进一步保证相邻的两个电池片101紧密接触，第一导电部和第二导电部与连接部垂直。
第一绝缘层103和第二绝缘层104为连接部的一部分，或者第一绝缘层103设置在电池片101上，第二绝缘层104设置在电池片101上。
上述电池片单元布置方式有多种，请参阅图6，图示中多组电池片单元沿电池片单元的宽度方向平行布置。请参阅图7，图示中多组电池片单元沿电池片单元的长度方向平行布置。请参阅图8，图示中太阳能电池片101组件的接线盒设置在多组电池片单元中间。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (8)

  1. 一种电池片串联组件，包括多组电池片单元(100)，每组所述电池片单元(100)包括多个电池片，其特征在于，每组所述电池片单元(100)中，相邻的两个电池片中的一个电池片的背面通过导电材料(102)与另一个电池片的正面电连接，所述导电材料(102)与两个电池片紧密接触的部位分别设置有第一绝缘层(103)和第二绝缘层(104)。
  2. 如权利要求1所述的电池片串联组件，其特征在于，所述导电材料(102)包括位于相邻的两个电池片之间的连接部，连接其中一个电池片背面的第一导电部，和连接另一个电池片背面的第二导电部。
  3. 如权利要求2所述的电池片串联组件，其特征在于，所述第一导电部和所述第二导电部与所述连接部垂直。
  4. 如权利要求2所述的电池片串联组件，其特征在于，所述第一绝缘层(103)和所述第二绝缘层(104)为所述连接部的一部分。
  5. 如权利要求2所述的电池片串联组件，其特征在于，所述第一绝缘层(103)设置在所述电池片上，所述第二绝缘层(104)设置在所述电池片上。
  6. 如权利要求1所述的电池片串联组件，其特征在于，多组所述电池片单元(100)沿所述电池片单元(100)的宽度方向平行布置。
  7. 如权利要求1所述的电池片串联组件，其特征在于，多组所述电池片单元(100)沿所述电池片单元(100)的长度方向平行布置。
  8. 如权利要求1所述的电池片串联组件，其特征在于，太阳能电池片组件的接线盒设置在多组所述电池片单元(100)中间。
PCT/CN2018/107588 2017-09-27 2018-09-26 一种电池片串联组件 WO2019062758A1 (zh)

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Application Number Priority Date Filing Date Title
US16/335,685 US20210359148A1 (en) 2017-09-27 2018-09-26 Series-connected solar cell module
JP2019515917A JP6903746B2 (ja) 2017-09-27 2018-09-26 電池セル直列モジュール
EP18857413.1A EP3525245A4 (en) 2017-09-27 2018-09-26 CONNECTION ASSEMBLY SERIES OF BATTERY ELEMENTS

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Application Number Priority Date Filing Date Title
CN201710888261.5 2017-09-27
CN201710888261.5A CN107706258A (zh) 2017-09-27 2017-09-27 一种电池片串联组件

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US (1) US20210359148A1 (zh)
EP (1) EP3525245A4 (zh)
JP (1) JP6903746B2 (zh)
CN (1) CN107706258A (zh)
WO (1) WO2019062758A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020237059A1 (en) * 2019-05-23 2020-11-26 Zhejiang Kaiying New Materials Co., Ltd. Solar cell side surface interconnects
US11043606B2 (en) 2019-05-23 2021-06-22 Zhejiang Kaiying New Materials Co., Ltd. Solar cell edge interconnects
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