CURRENT COLLECTOR SHEET FOR SOLAR BATTERY MODULE AND SOLAR BATTERY MODULE USING THE SAME

• Main Authors: OHASHI TAKUYA, KOMAI TAKAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 19.01.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To provide a current collector sheet for a solar battery module which is used for a solar battery module having a back contact type solar battery element mounted thereon, and in which the rate of the formation area of a metal wiring portion to the arrangement area of the solar battery element is increased to enable sufficient contribution to the power generation efficiency while maintaining barrier performance required for the solar battery module.SOLUTION: In a current collector sheet 1 for a solar battery module including a metal wiring portion 3 comprising a combination of unit wiring portions having a comb shape each of which comprises a ridge portion 31 and a tooth portion 32 formed in a direction perpendicular to the peak portion 31, the minimum value L of the width of the ridge portion 31 defined by the distance between the tip of a wiring non-formed portion formed around the tip portion of the tooth portion 32 and the confronting tip of the wiring non-formed portion ranges from not less than 0.1 mm to not more than 1.0 mm, and a resin base material 2 is a current collector sheet 1 which is anneal-treated resin having a thickness ranging from not less than 12 μm to not more than 250 μm.SELECTED DRAWING: Figure 3 【課題】バックコンタクト型の太陽電池素子を搭載した太陽電池モジュールに用いる太陽電池モジュール用の集電シートにおいて、太陽電池素子の配置領域に対する、同領域内における金属配線部の形成領域の割合を高めて、太陽電池モジュールに要求されるバリア性を保持したまま、十分に発電効率の寄与することができる太陽電池モジュール用の集電シートを提供する。【解決手段】峰部分３１と峰部分３１に対して垂直方向に形成される歯部分３２とからなる櫛形形状の単位配線部の組合せからなる金属配線部３を備える太陽電池モジュール用の集電シート１において、歯部分３２の先端部周囲に形成される配線非形成部の先端と、対面する配線非形成部の先端との間の距離によって規定される峰部分３１の幅の最小値Ｌが０．１ｍｍ以上１．０ｍｍ以下であり、且つ、樹脂基材２が、厚さ１２μｍ以上２５０μｍ以下のアニール処理済の樹脂である集電シート１とする。【選択図】図３