Interconnect sheet, solar cell with interconnect sheet, solar module, and method of producing solar cell with interconnect sheet

A technology of solar cells and wiring boards, which is applied in the direction of electrical components, chemical instruments and methods, circuits, etc., can solve the problems of position deviation between wiring boards and back electrode type solar panels, wiring position deviation, etc., and achieve the purpose of suppressing poor insulation, The effect of suppressing the reduction of contact resistance and suppressing positional deviation

Inactive Publication Date: 2012-02-29
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In the latter process and the variation in the installation environment, thermal shrinkage and thermal expansion of the wiring board may occur due to heat treatment in the above-mentioned process, for example, and the position of the electrode of the back electrode type solar ce

Method used

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  • Interconnect sheet, solar cell with interconnect sheet, solar module, and method of producing solar cell with interconnect sheet
  • Interconnect sheet, solar cell with interconnect sheet, solar module, and method of producing solar cell with interconnect sheet
  • Interconnect sheet, solar cell with interconnect sheet, solar module, and method of producing solar cell with interconnect sheet

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0158]

[0159] First, a PET film with a width of 510 mm, a length of 400 mm, and a thickness of 50 μm was prepared as an insulating base material for the wiring board. Next, a copper foil having a thickness of 35 μm was bonded to the entire surface of one surface of the PET film. The adhesive is applied to one side of the PET film, and the copper foil is laminated, pressurized and heated.

[0160] Next, a part of the copper foil on the surface of the PET film is etched and patterned into figure 1 The shape shown in (a) forms the following wiring 16, which includes a comb-shaped n-type wiring 12, a comb-shaped p-type wiring 13, and a comb-shaped n-type wiring 12 and a comb The strip-shaped connection wiring 14 is electrically connected to the p-type wiring 13 in the shape. At the same time, when the wiring board is manufactured as a solar battery unit or a solar battery module with a wiring board, the wiring 14 ( figure 1 ) At 10b1( figure 1 (a), Figure 4 (a), Figure 5 (a))...

Example Embodiment

[0166]

[0167] In Example 1, the wiring board and the back electrode type solar cell were joined using a resin composition, and then sealed with a sealing material to produce a solar cell module. However, in Example 2, the wiring board was not connected to the back surface. The electrode-type solar battery cells are joined and sealed with a sealing material to produce a solar battery module.

[0168] Here, only the differences from Embodiment 1 will be described. Before the 12 back electrode type solar battery cells 20 are respectively installed on the wiring board 10, it is the same as in the first embodiment.

[0169] Next, the wiring board and the solar battery cells laminated in this way are placed between the ethylene vinyl acetate resin (EVA resin) provided on the glass substrate and the EVA resin provided on the PET film. Then, using a laminator device, the EVA resin on the glass substrate side was crimped to the back electrode type solar battery cell 20 of the solar batte...

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Abstract

An interconnect sheet (10) with insulating base material (11) on which interconnects (16) for electrically connecting a plurality of back surface electrode type solar cells (20) are placed, said interconnect sheet (10) being provided with a plurality of cell placement sections (10a) on which back surface electrode type solar cells (20) are placed, and having an insulating layer (101) provided on the cell placement side between neighboring cell placement sections (10a). Thus, disclosed is an interconnect sheet (10) used for back surface electrode type solar cells, which can limit unnecessary contact occurring between the back surface electrode type solar cells (20) placed on the interconnect sheet (10) and the interconnects (16) of the interconnect sheet (10). Further disclosed are a solar cell with the interconnect sheet, a solar module, and a method of producing the solar cell with the interconnect sheet.

Description

technical field [0001] The present invention relates to a wiring board, a solar battery cell with a wiring board, a solar battery module, and a method for manufacturing a solar battery cell with a wiring board. Background technique [0002] In recent years, due to the depletion of energy resources, CO in the atmosphere 2 The development of clean energy is highly expected due to the increasing global environmental problems, and in particular, photovoltaic power generation using solar cell modules has been developed and put into practical use as a new energy source, and is advancing along the road of development. [0003] As a solar cell constituting such a solar cell module, a double-sided electrode type solar cell has conventionally become the mainstream. The double-sided electrode type solar cell conducts electricity opposite to the silicon substrate by diffusing the light-receiving surface of a single crystal or polycrystalline silicon substrate, for example. Type impurit...

Claims

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Application Information

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IPC IPC(8): H01L31/042
CPCB32B17/10018B32B17/10376B32B17/10788B32B27/20B32B2367/00H01L31/048H01L31/0516H01L31/0682H01L31/022441Y02E10/547B32B27/306B32B27/36B32B2307/412B32B2307/712B32B2307/732B32B2457/12H01L31/042H01L31/18
Inventor 道祖尾泰史土津田义久常深安纪子仁科友宏
Owner SHARP KK
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