Title:
PREPARATION METHOD FOR BACK ELECTRODE OF SOLAR CELL AND APPLICATION
Document Type and Number:
WIPO Patent Application WO/2020/015021
Kind Code:
A1
Abstract:
A preparation method for the back electrode of a solar cell and an application. The method comprises two parts: setting of a back electrode barrier layer and use of back silver paste in coordination. The back electrode barrier layer comprises the following components in parts by weight: 20-80 parts of metal nitride powder, nitrogen and silicon compound powder, oxide powder, or low-melting-point metal powder, 0.5-5 parts of lead-free glass powder, 10-40 parts of organic binder, and 0.1-1 part of organic assistant. The back silver paste comprises the following components in parts by weight: 5-60 parts of hollow spherical silver powder, 5-30 parts of flake silver powder, 0.5-5 parts of lead-free glass powder, 10-50 parts of organic binder, and 0.1-1 part of organic assistant.
Inventors:
ZHU PENG (CN)
Application Number:
PCT/CN2018/098232
Publication Date:
January 23, 2020
Filing Date:
August 02, 2018
Export Citation:
Assignee:
NANTONG T SUN NEW ENERGY CO LTD (CN)
International Classes:
H01L31/0224; H01L31/18
Foreign References:
| CN107591218A | 2018-01-16 | |||
| CN101236997A | 2008-08-06 | |||
| JPH0472764A | 1992-03-06 | |||
| US5118362A | 1992-06-02 |
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