Title:
BACK-CONTACT CELL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/045347
Kind Code:
A1
Abstract:
The present application relates to the technical field of photovoltaics, and discloses a back-contact cell and a manufacturing method therefor, for use in simplifying the manufacturing process of a back-contact cell while ensuring high photoelectric conversion efficiency. The back-contact cell comprises a substrate having a first surface and a second surface opposite to each other, a first doped region and a second doped region arranged in a staggered manner, and a third region between the first doped region and the second doped region being provided on the first surface; a first doped layer and a second doped layer sequentially formed on the first doped region, the first doped layer and the second doped layer having opposite conductivity types; a third doped layer formed in the second doped region, the third doped layer and the first doped layer having opposite conductive types; and a first electrode and a second electrode, the first electrode electrically contacting the second doped layer, and the second electrode electrically contacting the third doped layer. The back-contact cell manufacturing method provided in the present application is used for manufacturing a back-contact cell.
Inventors:
LI ZHONGLAN (CN)
LU WEIMING (CN)
LI HUA (CN)
JIN YUPENG (CN)
LU WEIMING (CN)
LI HUA (CN)
JIN YUPENG (CN)
Application Number:
PCT/CN2022/092272
Publication Date:
March 30, 2023
Filing Date:
May 11, 2022
Export Citation:
Assignee:
LONGI SOLAR TECH TAIZHOU CO LTD (CN)
International Classes:
H01L31/0288; H01L31/0216
Foreign References:
| CN113964216A | 2022-01-21 | |||
| CN113921625A | 2022-01-11 | |||
| CN113394304A | 2021-09-14 | |||
| CN113284961A | 2021-08-20 | |||
| CN102623517A | 2012-08-01 | |||
| CN106876501A | 2017-06-20 | |||
| KR20180067782A | 2018-06-21 |
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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