ALUMINUM PASTE COMPOSITION FOR ACHIEVING LOW BOWING AND HIGH PERFORMANCE FOR A SILICON SOLAR BATTERY

WIPO Patent Application WO/2012/148021

A1

The present invention relates to an aluminum paste composition for forming a back surface magnetic field on the back surface of a silicon solar battery, in which a high-efficiency characteristic is achieved by ameliorating the phenomenon of the bowing of a solar battery cell, which occurs when glass compositions and ceramic additives are added to aluminum powder. The aluminum paste composition of the present invention consists of 60 to 90 wt % of aluminum powder, 1 to 10 wt % of a binder resin, 0.1 to 10 wt % of a lead-free glass additive, and 0.1 to 10 wt % of a ceramic additive, wherein the composition comprises 60 to 90 wt % of conductive materials provided in one or more different sizes. According to the present invention, the bowing characteristic of the solar battery cell can be ameliorated, thereby preventing a decrease in yield caused by damage to the solar battery cell during the production and handling of the solar battery. Further, the internal stress of the solar battery cell can be reduced due to the amelioration of the bowing, thereby improving the efficiency of the solar battery.

PARK SEONG YONG (KR)
JEONG IN-BUM (KR)
YANG SEUNG JIN (KR)
LEE JUNG WOONG (KR)
PARK KI BUM (KR)

PCT/KR2011/003190

November 01, 2012

April 29, 2011

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CHANG SUNG CORP (KR)
PARK SEONG YONG (KR)
JEONG IN-BUM (KR)
YANG SEUNG JIN (KR)
LEE JUNG WOONG (KR)
PARK KI BUM (KR)

H01B1/22; H01B1/06; H01B1/16

KR100801168B1	2008-02-05
KR20110022373A	2011-03-07
US20010029977A1	2001-10-18
US20090126797A1	2009-05-21

KOREANA PATENT FIRM (KR)
특허법인 코리아나 (KR)

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