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    Method for fabricating a solar module of rear contact solar cells using linear ribbon-type connector strips and respective solar module
    2.
    发明授权
    Method for fabricating a solar module of rear contact solar cells using linear ribbon-type connector strips and respective solar module 有权

    公开(公告)号：US11715806B2

    公开(公告)日：2023-08-01

    申请号：US17471294

    申请日：2021-09-10

    Applicant: REC SOLAR PTE. LTD.

    Inventor： Philipp Johannes Rostan ,  Robert Wade ,  Noel G. Diesta ,  Shankar Gauri Sridhara ,  Anders Soreng

    IPC: H01L31/05 ,  H01L31/0224 ,  H01L31/068 ,  H01L31/02

    CPC classification number: H01L31/0516 ,  H01L31/0201 ,  H01L31/02245 ,  H01L31/0508 ,  H01L31/0682 ,  Y02E10/547

    Abstract: A solar module and a method for fabricating a solar module comprising a plurality of rear contact solar cells are described. Rear contact solar cells (1) are provided with a large size of e.g. 156×156 mm2. Soldering pad arrangements (13, 15) applied on emitter contacts (5) and base contacts (7) are provided with one or more soldering pads (9, 11) arranged linearly. The soldering pad arrangements (13, 15) are arranged asymmetrically with respect to a longitudinal axis (17). Each solar cell (1) is then separated into first and second cell portions (19, 21) along a line (23) perpendicular to the longitudinal axis (17). Due to such cell separation and the asymmetrical design of the soldering pad arrangements (13, 15), the first and second cell portions (19, 21) may then be arranged alternately along a line with each second cell portion (21) arranged in a 180°-orientation with respect to the first cell portions (19) and such that emitter soldering pad arrangements (13) of a first cell portion (19) are aligned with base soldering pad arrangements (15) of neighboring second cell portions (21), and vice versa. Simple linear ribbon-type connector strips (25) may be used for interconnecting the cell portions (19, 21) by soldering onto the underlying aligned emitter and base soldering pad arrangements (13, 15). The interconnection approach enables using standard ribbon-type connector strips (25) while reducing any bow as well as reducing series resistance losses.

    Cost effective frame design for thinner wafers
    4.
    发明授权
    Cost effective frame design for thinner wafers 有权

    公开(公告)号：US11671051B2

    公开(公告)日：2023-06-06

    申请号：US16618661

    申请日：2018-06-01

    Applicant: REC SOLAR PTE. LTD.

    Inventor： Noel G. Diesta ,  Shankar Gauri Sridhara

    IPC: H02S30/10 ,  H02S40/34

    CPC classification number: H02S30/10 ,  H02S40/34

    Abstract: A slim solar module (1) is proposed. It comprises a solar laminate (3) comprising plural solar cells (9) interposed between front and rear cover sheets (13, 15), a frame (5) enclosing the solar laminate (3) and at least one reinforcement strut (7) arranged at a rear surface of the solar laminate (3). A ratio between a frame surface and a frame thickness shall be between 45000 and 70000. For example, the frame may have a thickness of less than 35 mm. Specifically, the frame may have a length of 1665 mm, a width of 991 mm and a thickness of 30 mm. Due to the reduced thickness, the solar module has a reduced volume being beneficial during transport to a destination location. However, the thickness has been optimized to, with the reinforcement struts, still providing for sufficient mechanical stability for the solar module.

    Cost Effective Frame Design for Thinner Wafers
    7.
    发明申请
    Cost Effective Frame Design for Thinner Wafers 审中-公开

    公开(公告)号：US20200313605A1

    公开(公告)日：2020-10-01

    申请号：US16618661

    申请日：2018-06-01

    Applicant: REC SOLAR PTE. LTD.

    Inventor： Noel G. Diesta ,  Shankar Gauri Sridhara

    IPC: H02S30/10 ,  H02S40/34

    Abstract: A slim solar module (1) is proposed. It comprises a solar laminate (3) comprising plural solar cells (9) interposed between front and rear cover sheets (13, 15), a frame (5) enclosing the solar laminate (3) and at least one reinforcement strut (7) arranged at a rear surface of the solar laminate (3). A ratio between a frame surface and a frame thickness shall be between 45000 and 70000. For example, the frame may have a thickness of less than 35 mm. Specifically, the frame may have a length of 1665 mm, a width of 991 mm and a thickness of 30 mm. Due to the reduced thickness, the solar module has a reduced volume being beneficial during transport to a destination location. However, the thickness has been optimized to, with the reinforcement struts, still providing for sufficient mechanical stability for the solar module.

    Method for fabricating a solar module of rear contact solar cells using linear ribbon-type connector strips and respective solar module
    8.
    发明授权
    Method for fabricating a solar module of rear contact solar cells using linear ribbon-type connector strips and respective solar module 有权

    公开(公告)号：US10396227B2

    公开(公告)日：2019-08-27

    申请号：US15383444

    申请日：2016-12-19

    Applicant: REC SOLAR PTE. LTD.

    Inventor： Philipp Johannes Rostan ,  Robert Wade ,  Noel Gonzales Diesta ,  Shankar Gauri Sridhara ,  Anders Søreng

    IPC: H01L31/05 ,  H01L31/02 ,  H01L31/0224 ,  H01L31/068

    Abstract: A solar module and a method for fabricating a solar module comprising a plurality of rear contact solar cells are described. Rear contact solar cells (1) are provided with a large size of e.g. 156×156 mm2. Soldering pad arrangements (13, 15) applied on emitter contacts (5) and base contacts (7) are provided with one or more soldering pads (9, 11) arranged linearly. The soldering pad arrangements (13, 15) are arranged asymmetrically with respect to a longitudinal axis (17). Each solar cell (1) is then separated into first and second cell portions (19, 21) along a line (23) perpendicular to the longitudinal axis (17). Due to such cell separation and the asymmetrical design of the soldering pad arrangements (13, 15), the first and second cell portions (19, 21) may then be arranged alternately along a line with each second cell portion (21) arranged in a 180°-orientation with respect to the first cell portions (19) and such that emitter soldering pad arrangements (13) of a first cell portion (19) are aligned with base soldering pad arrangements (15) of neighboring second cell portions (21), and vice versa. Simple linear ribbon-type connector strips (25) may be used for interconnecting the cell portions (19, 21) by soldering onto the underlying aligned emitter and base soldering pad arrangements (13, 15). The interconnection approach enables using standard ribbon-type connector strips (25) while reducing any bow as well as reducing series resistance losses.

    Cost effective frame design for thinner wafers
    9.
    发明授权
    Cost effective frame design for thinner wafers 有权

    公开(公告)号：US12283914B2

    公开(公告)日：2025-04-22

    申请号：US18327407

    申请日：2023-06-01

    Applicant: REC SOLAR PTE. LTD.

    Inventor： Noel G. Diesta ,  Shankar Gauri Sridhara

    IPC: H02S30/10 ,  H02S40/34

    Abstract: A slim solar module is proposed. It comprises a solar laminate comprising plural solar cells interposed between front and rear cover sheets, a frame enclosing the solar laminate and at least one reinforcement strut arranged at a rear surface of the solar laminate. A ratio between a frame surface and a frame thickness shall be between 45000 and 70000. For example, the frame may have a thickness of less than 35 mm. Specifically, the frame may have a length of 1665 mm, a width of 991 mm and a thickness of 30 mm. Due to the reduced thickness, the solar module has a reduced volume being beneficial during transport to a destination location. However, the thickness has been optimized to, with the reinforcement struts, still providing for sufficient mechanical stability for the solar module.

    SOLAR MODULE
    10.
    发明申请
    SOLAR MODULE 有权

    公开(公告)号：US20250072123A1

    公开(公告)日：2025-02-27

    申请号：US18724995

    申请日：2022-12-09

    Applicant: REC Solar PTE. Ltd.

    Inventor： Thiyagu SUBRAMANI ,  Shankar Gauri Sridhara

    IPC: H01L31/05 ,  H01L31/02 ,  H01L31/044

    Abstract: A solar module comprising a plurality of solar cell strings arranged side-by-side, each solar cell string having positive and negative terminals at opposite ends thereof, the plurality of solar cell strings comprising: a first group of adjacent solar cell strings, each oriented such that their positive terminals are disposed towards a first end of the solar module; and a second group of adjacent solar cell strings, each oriented such that their positive terminals are disposed towards a second end of the solar module opposite the first end, the positive terminals of the second group of solar cell strings electrically connected to the negative terminals of the first group of solar cell strings.

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