US 11,742,453 B2
Method for manufacturing monocrystalline silicon wafer containing arced side, method for manufacturing monocrystalline silicon cell, and photovoltaic module
Xiaolong Bai, Jiangxi (CN); Lizhu He, Jiangxi (CN); Xinyu Zhang, Jiangxu (CN); Peiyuan Wang, Jiangxi (CN); Jun Yang, Jiangxi (CN); Ziyang Ou, Jiangxi (CN); Jide Huang, Jiangxi (CN); Weize Shang, Jiangxi (CN); and Hao Jin, Jiangxi (CN)
Assigned to Jinko Solar Co., Ltd., Jiangxi (CN); and Zhejiang Jinko Solar Co., Ltd., Zhejiang (CN)
Filed by JINKO SOLAR CO., LTD., Jiangxi (CN); and ZHEJIANG JINKO SOLAR CO., LTD, Zhejiang (CN)
Filed on Sep. 30, 2020, as Appl. No. 17/39,425.
Claims priority of application No. 201911268035.2 (CN), filed on Dec. 11, 2019.
Prior Publication US 2021/0184068 A1, Jun. 17, 2021
Int. Cl. H01L 31/18 (2006.01); B23K 26/364 (2014.01); B23K 26/40 (2014.01); B28D 5/04 (2006.01); H01L 31/0352 (2006.01); H01L 31/042 (2014.01); B23K 101/40 (2006.01)
CPC H01L 31/186 (2013.01) [B23K 26/364 (2015.10); B23K 26/40 (2013.01); B28D 5/04 (2013.01); H01L 31/035281 (2013.01); H01L 31/042 (2013.01); B23K 2101/40 (2018.08)] 18 Claims
OG exemplary drawing
 
1. A method for manufacturing at least one solar cell, comprising:
obtaining a quasi-square silicon wafer having at least one arc, a length of each of the at least one arc being not less than 15 mm;
forming the at least one solar cell by processing the quasi-square silicon wafer; and
scribing the at least one solar cell to obtain a square-shaped sub-solar cell and at least one strip-shaped sub-solar cell, a number of the at least one strip-shaped sub-solar cell being equal to a number of the at least one arc of the quasi-square,
wherein obtaining a quasi-square silicon wafer having at least one arc includes:
providing a monocrystalline silicon rod;
squaring the monocrystalline silicon rod to form a quasi-square silicon rod with a quasi-square cross-section having the at least one arc, the length of each of the at least one arc being not less than 15 mm; and
slicing the quasi-square silicon rod to form the at least one quasi-square silicon wafer having the at least one arc.