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发明公开
CN103762278A 一种MWT太阳能电池及其制作方法 无效 - 驳回

一种MWT太阳能电池及其制作方法
摘要：
本发明公开了一种MWT太阳能电池及其制作方法，所述制作方法包括：提供一电池片；形成贯穿所述电池片的过孔，其中，所述过孔的直径由所述硅片的背光表面到所述硅片的受光表面逐渐增大；由所述背光表面印刷浆料，在所述过孔内形成过孔电极。所述制作方法避免了由于过孔侧面垂直导致的过孔开口处浆料较薄的问题，进而避免了过孔电极电阻较大的问题，提高了电池的转换效率。因此采用所述制作方法制备的MWT太阳能电池具有较高的转换效率。
摘要（英）：

The invention discloses an MWT solar battery and a manufacturing method thereof. The manufacturing method comprises the steps that a battery piece is provided; a through hole penetrating through the battery piece is formed, and the diameter of the through hole is gradually increased from the backlight surface of a silicon wafer to the illuminated surface of the silicon wafer; the backlight surface is printed with slurry, and a through hole electrode is formed in the through hole. The manufacturing method solves the problems that the side face of the through hole is perpendicular to enable the slurry at the opening of the through hole to be relatively thin, and resistance of the through hole electrode is relatively large, and conversion efficiency of the battery is improved. Therefore, the MWT solar battery made in the manufacturing method has higher conversion efficiency.

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