公开(公告)号：US20180090633A1

公开(公告)日：2018-03-29

申请号：US15711530

申请日：2017-09-21

Applicant: LG ELECTRONICS INC.

Inventor： Yunhui CHO ,  Wondoo SONG ,  Youngjun KIM ,  Suchun LEE ,  Sungho CHANG

IPC: H01L31/05 ,  H01L31/0224 ,  H01L31/0465 ,  H01L31/18

CPC classification number: H01L31/05 ,  H01L31/0201 ,  H01L31/022425 ,  H01L31/022433 ,  H01L31/0465 ,  H01L31/0504 ,  H01L31/0508 ,  H01L31/1868 ,  Y02E10/50

Abstract: Disclosed is a solar cell including a semiconductor substrate, a conductive region on or at the semiconductor substrate, and an electrode electrically connected to the conductive region. The electrode includes a plurality of finger lines formed in a first direction and parallel to each other and a bus bar electrically connected to the plurality of finger lines and formed in a second direction crossing the first direction. The bus bar includes a plurality of pad portions positioned in the second direction, and the bus bar has a plurality of regions, which are different from each other in at least one of an arrangement and an area of the plurality of pad portions, in the second direction.