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公开(公告)号：US20240313139A1
公开(公告)日：2024-09-19
申请号：US18579878
申请日：2022-05-10
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Junjie XIE , Chen XU , Zifeng LI , Zhao WU , Tong LIU
IPC: H01L31/044 , H01L31/02 , H01L31/05 , H01L31/18
CPC classification number: H01L31/044 , H01L31/02008 , H01L31/0512 , H01L31/1864 , H01L31/1876
Abstract: A perovskite material bypass diode and a manufacturing method therefor, a perovskite solar cell module and a manufacturing method therefor, and a photovoltaic module are disclosed by the present application, which relate to the technical field of photovoltaics, the difficulty of manufacturing the perovskite material bypass diode is reduced. The method for manufacturing the perovskite material bypass diode includes: providing a layer of a perovskite material layer, processing the perovskite material layer to form a P-type perovskite material region and an N-type perovskite material region, so that a perovskite material bypass diode is formed. The perovskite material bypass diode and the manufacturing method therefor, the perovskite solar cell module and the manufacturing method therefor, and the photovoltaic module provided by the present application are used to manufacture the photovoltaic module.
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公开(公告)号：US20240090245A1
公开(公告)日：2024-03-14
申请号：US18272027
申请日：2021-11-23
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Junjie XIE , Chen XU , Zifeng LI , Zhao WU , Jinling JIN , Tong LIU
Abstract: The present disclosure relates to the field of photovoltaic technologies. Disclosed are a solar cell and a photovoltaic module. The solar cell includes: an absorption layer; and an energy selective contact layer located on a surface of the absorption layer, the energy selective contact layer having selectivity for electron energy or hole energy, and the material of the energy selective contact layer including a low-dimensional perovskite material. According to the solar cell and the photovoltaic module provided by the present disclosure, a photovoltaic module can be manufactured.
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公开(公告)号：US20230074348A1
公开(公告)日：2023-03-09
申请号：US17799746
申请日：2020-10-22
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
IPC: H01L31/0725 , H01L31/0312
Abstract: A tandem photovoltaic device includes: an upper cell unit, a lower cell unit and a tunnel junction positioned between the upper cell unit and the lower cell unit; the tunnel junction includes an upper transport layer, a lower transport layer, and an intermediate layer positioned between the upper transport layer and the lower transport layer, the intermediate layer is an ordered defect layer, or, the intermediate layer is a continuous thin layer, or, the intermediate layer includes a first layer in contact with the lower transport layer and a second layer in contact with the upper transport layer; a doping concentration of the first layer is 10-10,000 times of a doping concentration of the lower transport layer, and the doping concentration of the first layer is less than 1021cm−3; a doping concentration of the second layer is 10-10,000 times of a doping concentration of the upper transport layer.
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公开(公告)号：US20220131497A1
公开(公告)日：2022-04-28
申请号：US17440764
申请日：2020-02-27
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Qingfeng XU , Chen XU , Le WANG , Bingxuan HE
IPC: H02S40/36 , H01L31/02 , H01L31/0443 , H01L31/048 , H02S40/34
Abstract: A photovoltaic module includes at least one cell unit, and the at least one cell unit is rectangular; the at least one cell unit includes a plurality of cell-string groups that are electrically connected, each of the plurality of cell-string groups includes a plurality of cell strings connected in parallel, and each of the plurality of cell strings includes a plurality of cell connected in series; each of the plurality of cell-string groups has two electrically conductive ends and two side edges located between the two electrically conductive ends; and at least two neighboring instances of the plurality of cell-string groups are arranged in a predetermined mode, wherein the predetermined mode is as follows: one of the two electrically conductive ends of one of the plurality of cell-string groups and one of side edges of the neighboring cell-string group are located on a same straight line.
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公开(公告)号：US20240355950A1
公开(公告)日：2024-10-24
申请号：US18688055
申请日：2022-05-26
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Zhao WU , Chen XU , Zifeng LI , Junjie XIE , Tong LIU
IPC: H01L31/076 , H01L31/0216 , H10K30/15 , H10K30/40
CPC classification number: H01L31/076 , H01L31/02167 , H10K30/40 , H10K30/15
Abstract: A color tandem photovoltaic device includes a bottom cell, an optical reflective layer, a series connection layer, and a top cell. The series connection layer connects the bottom cell and the top cell; the optical reflective layer is located between the bottom cell and the top cell such that the color tandem photovoltaic device presents color.
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Patent Agency Ranking
公开(公告)号：US20240341107A1
公开(公告)日：2024-10-10
申请号：US18294040
申请日：2022-05-26
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Zhao WU , Chen XU , Junjie XIE , Zifeng LI , Tong LIU
Abstract: A tandem solar cell and a photovoltaic assembly, The tandem solar cell includes: a top-layer perovskite sub-cell and a bottom-layer crystalline-silicon sub-cell, and an optical regulating layer provided between the top-layer perovskite sub-cell and the bottom-layer crystalline-silicon sub-cell. After the part of the target light rays that are not absorbed by the top-layer perovskite sub-cell have passed through the top-layer perovskite sub-cell, because the optical regulating layer can be used to reflect at least some of the target light rays back into the top-layer perovskite sub-cell, at least some of the target light rays can enter the top-layer perovskite sub-cell again to perform secondary absorption, which prevents that the target light rays within the short-wave wave band directly enter the bottom-layer crystalline-silicon sub-cell having a low utilization ratio of the target light rays within the short-wave wave band, thereby increasing the efficiency of the tandem solar cell.
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公开(公告)号：US20240251575A1
公开(公告)日：2024-07-25
申请号：US18294872
申请日：2022-05-10
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Junjie XIE , Zhao WU , Chen XU , Zifeng LI , Tong LIU , Zhuxing SUN
Abstract: Provided are a perovskite cell and a photovoltaic module. The perovskite cell includes a perovskite light absorption layer, a first carrier transport layer, a second carrier transport layer, a first transparent electrode layer, a second transparent electrode layer, and an optical adjustment layer, wherein the optical adjustment layer is arranged between the second carrier transport layer and the second transparent electrode layer; and the transmittance of the optical adjustment layer for visible light is greater than or equal to a preset transmittance, and the reflectivity of the optical adjustment layer for infrared light is greater than or equal to a preset reflectivity.
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公开(公告)号：US20230327037A1
公开(公告)日：2023-10-12
申请号：US18024611
申请日：2021-09-16
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
IPC: H01L31/0725 , H01L31/0216 , H01L31/18 , H01L31/0288 , H01L31/0224
CPC classification number: H01L31/0725 , H01L31/02164 , H01L31/035218 , H01L31/0288 , H01L31/022441 , H01L31/1868
Abstract: The laminated A tandem solar cell includes a bottom cell and a top cell located on the bottom cell, wherein the bottom cell includes a first doping portion and a second doping portion, the first doping portion and the second doping portion form at least one PN junction, majority carriers in the first doping portion are a first type of carrier, and majority carriers in the second doping portion are a second type of carrier; the bottom cell is provided with a first electrode hole and a second electrode hole which penetrate the bottom cell, a first electrode is formed in the first electrode hole, and a second electrode is formed in the second electrode hole; the first electrode is in contact with the first doping portion; and the second electrode is in contact with the second doping portion.
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公开(公告)号：US20230371292A1
公开(公告)日：2023-11-16
申请号：US18029271
申请日：2021-10-09
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Chen XU
CPC classification number: H10K30/57 , H10K30/86 , H10K85/50 , H10K71/40 , H10K71/16 , H10K30/88 , H10K30/10
Abstract: A tandem cell and a manufacturing method thereof are provided in the present disclosure, so as to improve hole transmission performance of the tandem cell. The tandem cell includes a bottom cell, a hole transporting layer formed on the bottom cell, a perovskite absorbing layer formed on the hole transporting layer, and a transparent conducting layer formed above the perovskite absorbing layer. A material of the hole transporting layer includes a semiconductor material with a p-type delafossite structure, and a valence band top energy level of the hole transporting layer sequentially decreases in a direction away from the bottom cell, which has dual functions of carrier transport and carrier recombination, so as to simplify a cell structure and optimize the photoelectric conversion efficiency. The tandem cell and the manufacturing method thereof according to the present disclosure are used for manufacturing the tandem cell.
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公开(公告)号：US20230337444A1
公开(公告)日：2023-10-19
申请号：US18028491
申请日：2021-12-07
Applicant: LONGI GREEN ENERGY TECHNOLOGY CO., LTD.
Inventor： Junjie XIE , Chen XU , Zifeng LI , Zhao WU
CPC classification number: H10K30/10 , H10K30/50 , H10K71/311 , H10K2101/70
Abstract: A solar cell, a preparation method for a solar cell, and a photovoltaic module, relating to the technical field of solar energy photovoltaics. The solar cell includes a crystalline silicon cell unit, and a down-conversion luminescence layer and a perovskite layer sequentially located on the light-facing surface of the crystalline silicon cell unit. The band gap of the perovskite layer becomes gradually smaller in the direction from the light-facing surface to the back surface. The band gap at the back surface of the perovskite layer is greater than or equal to the band gap of an absorption layer of the crystalline silicon cell unit. Because the band gap gradually decreases from large to small, the perovskite layer features a wide absorption spectrum, a long charge carrier free path, higher luminous efficiency, thus being able to broaden the spectral absorption range of the solar cell, and improve energy use and conversion efficiency. The complex processing of multi-layer battery superposition is avoided, the multiple film layer structure is simplified, losses in transmission of charge carriers between film layer interfaces and series structures are avoided, the conversion efficiency of the solar cell is further improved, and the processing difficulty is reduced, facilitating industrial production.
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