Title:
SOLAR CELL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/258683
Kind Code:
A1
Abstract:
Provided are a solar cell and a manufacturing method therefor. The solar cell comprises a silicon substrate, wherein multiple fine gates are deposited on the silicon substrate, the fine gates being in ohmic contact with the silicon substrate; and the silicon substrate is provided with multiple main gates, the main gates intersecting with and being in electrical contact with the fine gates, and at least part of the main gate being formed by means of sintering an electrode slurry. According to the above-mentioned solution, the fine gates and the main gates are formed by combining high-temperature metalization (sintering) and low-temperature metalization (deposition), so that the disadvantage of a high cost caused by using a screen-printed sliver slurry is overcome; moreover, the fine gates are in ohmic contact with the silicon substrate, and thus, the solution has the advantages of a small contact resistance and a high current collection efficiency.
Inventors:
LI HUA (CN)
TONG HONGBO (CN)
ZHANG HONGCHAO (CN)
LIU JIYU (CN)
TONG HONGBO (CN)
ZHANG HONGCHAO (CN)
LIU JIYU (CN)
Application Number:
PCT/CN2019/118909
Publication Date:
December 30, 2020
Filing Date:
November 15, 2019
Export Citation:
Assignee:
LONGI SOLAR TECH TAIZHOU CO LTD (CN)
International Classes:
H01L31/0224
Foreign References:
| CN101950781A | 2011-01-19 | |||
| CN108717950A | 2018-10-30 | |||
| CN106771416A | 2017-05-31 | |||
| CN102820343A | 2012-12-12 | |||
| JP2010087251A | 2010-04-15 | |||
| CN201910548291A | 2019-06-24 |
Other References:
See also references of EP 3979332A4
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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