Anti-resistant aluminum paste for back surface field of cell

The invention provides an anti-resistant aluminum paste for the back surface field of a cell. The aluminum paste is composed of 80.5-89.7% of aluminum powder, 1.35-6.25% of glass powder, and 22-36% of an organic carrier by mass. The prepared aluminum paste can be coated on a film uniformly and compa...

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1. Verfasser: ZHANG GUANLUN
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides an anti-resistant aluminum paste for the back surface field of a cell. The aluminum paste is composed of 80.5-89.7% of aluminum powder, 1.35-6.25% of glass powder, and 22-36% of an organic carrier by mass. The prepared aluminum paste can be coated on a film uniformly and compactly, the adhesion is high, the conversion efficiency of the cell is improved by 0.054-0.087%, UOC, ISC and FF are all improved, the bending degree is 2.15-2.25, and the cell using the aluminum paste has no crystal spot phenomenon in the back surface field. 本发明提出了种用于电池片背电场的抗撕拉铝浆,所述用于电池片背电场的抗撕拉铝浆由以下质量百分含量组成:铝粉80.5-89.7%、玻璃粉1.35-6.24%、有机载体22-36%,本发明制备的铝浆涂膜均匀致密,附着力强,对于电池的转化效率提高了0.054-0.087%,U、I、FF均有提高,弯曲度为2.15-2.25,且使用本发明铝浆电池片的背电场无晶斑现象。