CONDUCTIVE ADHESIVE FOR SOLAR CELL, CONNECTION METHOD USING THE SAME, SOLAR CELL MODULE, AND MANUFACTURING METHOD OF SOLAR CELL MODULE

• Main Author: NAKAHARA KOICHI
• Format: Patent
• Language: English; Japanese
• Published: 06.10.2016
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; POLISHES; SEMICONDUCTOR DEVICES; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To provide a manufacturing method of a solar cell module shortening tact time and improving heat resistance and connection reliability.SOLUTION: A conductive adhesive 17 includes at least epoxy resin, a hardener, and conductive particles 23, and the hardener contains an imidazole-based hardener and an organic acid dihydrazide hardener. The conductive adhesive 17 is used to dispose tab lines 3 on electrodes 11 and 13 formed at a solar cell 2 through the conductive adhesive. Then, the conductive adhesive 17 is thermally hardened by pressuring the tab lines 3 at predetermined temperature and pressure for a predetermined time.SELECTED DRAWING: Figure 2 【課題】タクトタイムの短縮化と耐熱性、接続信頼性の向上を図る太陽電池モジュールの製造方法を提供する。【解決手段】少なくともエポキシ樹脂と、硬化剤と、導電性粒子２３とを備え、硬化剤は、イミダゾール系硬化剤及び有機酸ジヒドラジド硬化剤を含有した導電性接着剤１７を用い、太陽電池セル２に形成された電極１１，１３上に導電性接着剤を介してタブ線３を配置し、タブ線３上を所定の温度及び圧力で所定時間熱加圧することにより、導電性接着剤１７を熱硬化させる。【選択図】図２