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1. (WO2018018908) SOLAR BATTERY CELL AND ASSEMBLY, AND PREPARATION PROCESS THEREFOR

Pub. No.:    WO/2018/018908    International Application No.:    PCT/CN2017/078348
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Wed Mar 29 01:59:59 CEST 2017
IPC: H01L 31/0224
H01L 31/05
H01L 31/18
Applicants: NICE SUN PV CO.,LTD
无锡嘉瑞光伏有限公司
Inventors: ZHU, Xudong
朱旭东
SHI, Mengjie
史孟杰
Title: SOLAR BATTERY CELL AND ASSEMBLY, AND PREPARATION PROCESS THEREFOR
Abstract:
A solar battery cell (1), wherein main gate lines (2) thereof and a back electrode (3) on the back side thereof are arranged in a staggered manner. The previous design that positions of the main gate lines and the back electrode overlap in the same plane is replaced. At the same time, the solar battery cell constitutes an assembly, connected by means of stacking and welding. Firstly, solar battery slices (5) obtained after cutting the solar battery cell are applied to a lamination design so as to constitute a new solar battery assembly. Secondly, with regard to material, solder paste (6) is used to replace a solder strip or a bus bar, thereby greatly reducing costs. Moreover, connection is performed by means of stacking, thereby greatly reducing electrical losses and improving overall power generating efficiency of the assembly.