Title:
BUSBAR-FREE ALL-BACK-ELECTRODE CONTACT SOLAR CELL AND PHOTOVOLTAIC MODULE
Document Type and Number:
WIPO Patent Application WO/2024/093257
Kind Code:
A1
Abstract:
A busbar-free all-back-electrode contact solar cell and a photovoltaic module. The busbar-free all-back-electrode contact solar cell comprises a cell body (10), and several positive-electrode finger lines (20), several negative-electrode finger lines (30), several positive-electrode connecting lines (40) and several negative-electrode connecting lines (50), which are arranged on the back face of the cell body (10), wherein the positive-electrode finger lines (20) and the negative-electrode finger lines (30) are alternately distributed and extend in a first direction; the positive-electrode connecting lines (40) and the negative-electrode connecting lines (50) all extend in a second direction; and in the second direction, the several positive-electrode finger lines (20) are divided into at least two groups and the several negative-electrode finger lines (30) are divided into at least two groups, all the positive-electrode finger lines (20) in each group being electrically connected at least by means of one positive-electrode connecting line (40), and all the negative-electrode finger lines (30) in each group being electrically connected at least by means of one negative-electrode connecting line (50). During testing, it is only necessary to enable a test probe to be in pressing contact with a positive-electrode connecting line (40) and a negative-electrode connecting line (50), and the test probe can then effectively achieve electrical contact with each positive-electrode finger line (20) and each negative-electrode finger line (30), thus ensuring the accuracy of a test result.
Inventors:
LIU JUNBAO (CN)
WU XIANG (CN)
QU XIAOYONG (CN)
LI XIANGHONG (CN)
WU XIANG (CN)
QU XIAOYONG (CN)
LI XIANGHONG (CN)
Application Number:
PCT/CN2023/101151
Publication Date:
May 10, 2024
Filing Date:
June 19, 2023
Export Citation:
Assignee:
QINGHAI HUANGHE HYDROPOWER DEV CO LTD XINING SOLAR POWER BRANCH (CN)
QINGHAI HUANGHE HYDROPOWER DEV CO LTD XIAN SOLAR POWER BRANCH (CN)
QINGHAI HUANGHE HYDROPOWER DEV CO LTD (CN)
STATE POWER INVEST CORPORATION HUANGHE HYDROPOWER DEVELOPMENT CO LTD (CN)
QINGHAI HUANGHE HYDROPOWER DEV CO LTD XIAN SOLAR POWER BRANCH (CN)
QINGHAI HUANGHE HYDROPOWER DEV CO LTD (CN)
STATE POWER INVEST CORPORATION HUANGHE HYDROPOWER DEVELOPMENT CO LTD (CN)
International Classes:
H01L31/18
Foreign References:
| CN115621335A | 2023-01-17 | |||
| CN104576778A | 2015-04-29 | |||
| US20100201349A1 | 2010-08-12 | |||
| CN113193058A | 2021-07-30 | |||
| CN102800713A | 2012-11-28 | |||
| CN106653878A | 2017-05-10 |
Attorney, Agent or Firm:
BEIJING IPLING INTELLECTUAL PROPERTY LAW FIRM (CN)
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