Aluminum paste, manufacturing method thereof, PERC battery, PERC module and PERC system

The invention is suitable for the technical field of solar cells, and provides aluminum paste, a manufacturing method thereof, a PERC cell, a PERC module and a PERC system. The manufacturing method of the aluminum paste for the PERC battery comprises the following steps: manufacturing a boron-aluminum-silicon composite oxide; adding the boron-aluminum-silicon composite oxide into a glass basic raw material to form a glass raw material; and manufacturing the aluminum paste by using the glass raw material. Therefore, since the glass raw material of the aluminum paste comprises the boron-aluminum-silicon composite oxide, boron can be better reserved in a groove formed by laser, doping of a back electric field is improved, the back passivation effect of the PERC cell is improved, and the photoelectric conversion efficiency of the PERC cell is improved. 本申请适用于太阳能电池技术领域，提供了一种铝浆及其制作方法、PERC电池、组件、系统。PERC电池用的铝浆的制作方法包括：制作硼铝硅复合氧化物；将所述硼铝硅复合氧化物加入至玻璃基础原料，形成玻璃原料；利用所述玻璃原料制作铝浆。如此，由于铝浆的玻璃原料中包括硼铝硅复合氧化物，故可以使得硼更好地留在激光开设的槽中，提高背电场的掺