Patents Assigned to Rec Solar Pte. Ltd.
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Patent number: 10693022Abstract: A solar cell (104) is disclosed. The solar cell includes a substrate (151) including a front surface (156) and front surface electrodes (153) extending along the front surface (156). Therein, the front surface electrodes comprise a plurality of bus bar electrodes (152) coupled to a plurality of first finger electrodes (1531) arranged in a parallel finger region (105) and second finger electrodes (1532) arranged in a palm finger region (106). The first finger electrodes (1531) are substantially parallel to each other and perpendicular to the bus bar electrodes (152). The second finger electrodes (1532) originate from end regions of the bus bar electrodes (152) and radially extend at least in portions thereof in directions non-perpendicular to the bus bar electrodes (152).Type: GrantFiled: September 28, 2015Date of Patent: June 23, 2020Assignee: REC SOLAR PTE. LTD.Inventors: Philipp Johannes Rostan, Robert Wade
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Patent number: 10644177Abstract: A solar cell assembly (200) is presented. The solar cell assembly includes one or more solar cell units (21 1) coupled in series. The solar cell unit includes a first solar cell series (221) and a second solar cell series (222) connected in parallel. The first and second solar cell series include a plurality of cells (202) connecting in series respectively. The solar cell assembly also includes a by-pass diode (201) coupled to each solar cell unit and shared between the first and second solar cell series in each solar cell unit.Type: GrantFiled: July 2, 2014Date of Patent: May 5, 2020Assignee: REC SOLAR PTE. LTD.Inventors: Shankar Gauri Sridhara, Noel G. Diesta, Philipp Johannes Rostan, Robert Wade
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Publication number: 20200058815Abstract: 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).Type: ApplicationFiled: August 26, 2019Publication date: February 20, 2020Applicant: REC SOLAR PTE. LTD.Inventors: Philipp Johannes Rostan, Robert Wade, Noel Gonzales Diesta, Shankar Gauri Sridhara, Anders Soreng
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Publication number: 20200010978Abstract: A crucible for growing silicon ingots may include a vessel having a bottom wall and side walls surrounding an inner portion of the vessel. A coating layer is applied to inner surfaces of the bottom wall and the side walls, the coating layer including a temperature-resistant material compatible with ingot growth from molten silicon such as silicon nitride. A patterned protrusion layer is applied at the inner surface of the bottom wall, which includes a matrix consisting of a temperature-resistant material compatible with ingot growth from molten silicon such as silicon nitride. Furthermore, the patterned protrusion layer includes particles of a nucleation enhancing material such as silica, the particles locally protruding from the matrix. The protruding particles may generate a pattern of multiple nucleation points during crystal growth of the ingot. Due to such multiple nucleation points, a dislocation density defect propagation towards a top may be reduced during crystal growth such that, e.g.Type: ApplicationFiled: May 10, 2017Publication date: January 9, 2020Applicant: REC SOLAR PTE. LTD.Inventors: Abbu Udaiyar Senthil KUMARAN, YuHao Mike WU, Qi TANG, Benoit Jean Jacques LE FLAO, Hock Kar NG, Adolphus SONG
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Patent number: 10461208Abstract: A rear contact heterojunction solar cell and a fabricating method. The solar cell comprises a silicon substrate having a passivating layer and an intrinsic amorphous silicon layer. At a back side of the intrinsic amorphous silicon layer, an emitter layer and a base layer are provided. Interposed between these emitter and base layers is a separation layer comprising an electrically insulating material. This separation layer as well as the base layer and emitter layer may be generated by vapor deposition. Due to such processing, adjacent regions of the emitter layer and the separating layer and adjacent regions of the base layer and the separating layer partially laterally overlap in overlapping areas in such a way that at least a part of the separating layer is located closer to the substrate than an overlapping portion of the respective one of the emitter layer and the base layer.Type: GrantFiled: May 30, 2017Date of Patent: October 29, 2019Assignee: REC SOLAR PTE. LTD.Inventors: Martin Kirkengen, Erik Sauar
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Patent number: 10396227Abstract: 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).Type: GrantFiled: December 19, 2016Date of Patent: August 27, 2019Assignee: REC SOLAR PTE. LTD.Inventors: Philipp Johannes Rostan, Robert Wade, Noel Gonzales Diesta, Shankar Gauri Sridhara, Anders Søreng
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Patent number: 10224452Abstract: A method is provided of fabricating a photo voltaic generator panel (15) including a polymer back sheet (24) with at least one attachment feature (21) so as to provide means of attaching the panel to a structural support (25) upon subsequent installation. At least one polymer attachment feature (21) is applied to the outer side of the polymer back sheet of the panel during the manufacturing process for the panel whereby the attachment feature projects with respect to the back sheet. The application may be in conjunction with a lamination process, or subsequent to the lamination process, or as an integral part of the back sheet manufacturing process. The attachment feature is adapted to engage with a corresponding feature (26) or features to be found on a support structure (25) located at a site for the installation of the panel. The said at least one polymer attachment feature and said outer side of the polymer back sheet have a similar thermal expansion coefficient.Type: GrantFiled: April 27, 2011Date of Patent: March 5, 2019Assignee: REC SOLAR PTE. LTD.Inventors: Borge Bjorneklett, Oystein Holm, Erik Sauar
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Patent number: 10147830Abstract: This invention relates to a method for producing solar cells, and photovoltaic panels thereof. The method for producing solar panels comprises employing a number of semiconductor wafers and/or semiconductor sheets of films prefabricated to prepare them for back side metallization, which are placed and attached adjacent to each other and with their front side facing downwards onto the back side of the front glass, before subsequent processing that includes depositing at least one metal layer covering the entire front glass including the back side of the attached wafers/sheets of films. The metallic layer is then patterned/divided into electrically isolated contacts for each solar cell and into interconnections between adjacent solar cells.Type: GrantFiled: May 2, 2014Date of Patent: December 4, 2018Assignee: REC SOLAR PTE. LTD.Inventors: Martin Nese, Erik Sauar, Andreas Bentzen, Paul Alan Basore
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Publication number: 20170317224Abstract: A rear contact heterojunction solar cell and a fabricating method. The solar cell comprises a silicon substrate having a passivating layer and an intrinsic amorphous silicon layer. At a back side of the intrinsic amorphous silicon layer, an emitter layer and a base layer are provided. Interposed between these emitter and base layers is a separation layer comprising an electrically insulating material. This separation layer as well as the base layer and emitter layer may be generated by vapour deposition. Due to such processing, adjacent regions of the emitter layer and the separating layer and adjacent regions of the base layer and the separating layer partially laterally overlap in overlapping areas in such a way that at least a part of the separating layer is located closer to the substrate than an overlapping portion of the respective one of the emitter layer and the base layer.Type: ApplicationFiled: May 30, 2017Publication date: November 2, 2017Applicant: REC SOLAR PTE. LTD.Inventors: Martin KIRKENGEN, Erik SAUAR
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Patent number: 9748418Abstract: A rear contact heterojunction solar cell and a fabricating method. The solar cell comprises a silicon substrate having a passivating layer and an intrinsic amorphous silicon layer. At a back side of the intrinsic amorphous silicon layer, an emitter layer and a base layer are provided. Interposed between these emitter and base layers is a separation layer comprising an electrically insulating material. This separation layer as well as the base layer and emitter layer may be generated by vapor deposition. Due to such processing, adjacent regions of the emitter layer and the separating layer and adjacent regions of the base layer and the separating layer partially laterally overlap in overlapping areas in such a way that at least a part of the separating layer is located closer to the substrate than an overlapping portion of the respective one of the emitter layer and the base layer.Type: GrantFiled: May 25, 2012Date of Patent: August 29, 2017Assignee: REC SOLAR PTE. LTD.Inventors: Martin Kirkengen, Erik Sauar
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Publication number: 20170243992Abstract: A solar cell (104) is disclosed. The solar cell includes a substrate (151) including a front surface (156) and front surface electrodes (153) extending along the front surface (156). Therein, the front surface electrodes comprise a plurality of bus bar electrodes (152) coupled to a plurality of first finger electrodes (1531) arranged in a parallel finger region (105) and second finger electrodes (1532) arranged in a palm finger region (106).The first finger electrodes (1531) are substantially parallel to each other and perpendicular to the bus bar electrodes (152). The second finger electrodes (1532) originate from end regions of the bus bar electrodes (152) and radially extend at least in portions thereof in directions non-perpendicular to the bus bar electrodes (152).Type: ApplicationFiled: September 28, 2015Publication date: August 24, 2017Applicant: REC Solar Pte. Ltd.Inventors: Philipp Johannes ROSTAN, Robert WADE
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Patent number: 9660121Abstract: 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).Type: GrantFiled: September 10, 2013Date of Patent: May 23, 2017Assignee: REC SOLAR PTE. LTD.Inventors: Philipp Johannes Rostan, Robert Wade, Noel Gonzales Diesta, Shankar Gauri Sridhara, Anders Søreng
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Publication number: 20170104120Abstract: 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).Type: ApplicationFiled: December 19, 2016Publication date: April 13, 2017Applicant: REC SOLAR PTE. LTD.Inventors: Philipp Johannes ROSTAN, Robert WADE, Noel Gonzales DIESTA, Shankar Gauri SRIDHARA, Anders SØRENG
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Patent number: 9435052Abstract: The present invention relates to an arrangement for manufacturing crystalline silicon ingots by directional solidification, where the melt and carbonaceous structural parts of the crystallization furnace is protected from the fumes of the melt by applying a gas conduit which leads the fumes directly out of the directional solidification compartment of the furnace.Type: GrantFiled: April 18, 2012Date of Patent: September 6, 2016Assignee: REC SOLAR PTE. LTD.Inventors: Egor Vladimirov, Alexandre Teixeira, Kai Johansen, Pouria Homayonifar
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Publication number: 20160141435Abstract: A solar cell assembly (200) is presented. The solar cell assembly includes one or more solar cell units (211) coupled in series. The solar cell unit includes a first solar cell series (221) and a second solar cell series (222) connected in parallel. The first and second solar cell series include a plurality of cells (202) connecting in series respectively. The solar cell assembly also includes a by-pass diode (201) coupled to each solar cell unit and shared between the first and second solar cell series in each solar cell unit.Type: ApplicationFiled: July 2, 2014Publication date: May 19, 2016Applicant: REC SOLAR PTE. LTD.Inventors: Shankar Gauri SRIDHARA, Noel G. DIESTA, Philipp Johannes ROSTAN, Robert WADE
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Patent number: 9293635Abstract: The present invention relates to cost effective production methods of high efficiency silicon based back-contacted back-junction solar panels and solar panels thereof having a multiplicity of alternating rectangular emitter- and base regions on the back-side of each cell, each with rectangular metallic electric finger conductor above and running in parallel with the corresponding emitter- and base region, a first insulation layer in-between the wafer and finger conductors, and a second insulation layer in between the finger conductors and cell interconnections.Type: GrantFiled: September 28, 2012Date of Patent: March 22, 2016Assignee: REC SOLAR PTE. LTD.Inventors: Richard Hamilton Sewell, Andreas Bentzen, Lawrence Frederick Schloss, Young Seen Lee, Hiroaki Hayashigatani, Toshio Itoh, Alan Francis Lyon, Roger Thompson, Nemia Grubisich
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Publication number: 20160068730Abstract: The present invention relates to a method for production of photovoltaic wafers and abrasive slurries for multi-wire sawing of wafers for photovoltaic applications, and more specific to abrasive slurries which are easy to remove from the wafers after sawing, where the abrasive slurry comprises one part recycled abrasive slurry, an alkali in sufficient amount to provide a pH in the abrasive slurry mixture in the range from 6.0 to 9.0, and one part novel abrasive slurry in an amount sufficient to provide an ion content in the abrasive slurry mixture to provide an electric conductivity of less than 50 ?S/cm.Type: ApplicationFiled: November 12, 2015Publication date: March 10, 2016Applicant: REC SOLAR PTE. LTD.Inventors: Mohan Menon, Anne Lohne, Erik Sauar, Stian Sannes
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Patent number: 9236281Abstract: A multi-ingot furnace for the growth of crystalline semiconductor material has one or more heating devices for heating a hot zone in which crucibles containing semiconductor material are received. At least one of the heating devices is arranged to apply a predetermined differential heat flux profile across a horizontal cross-section of the semiconductor material in one or more of the crucibles, the predetermined differential heat flux profile being selected in dependence the position of the one or more crucibles in an array. In this manner, the heating device can at least partially compensate for differences in the temperature across the semiconductor material that arises from its geometric position in the furnace. This reduces the possibility of defects such as dislocations during the growth of a crystalline semiconductor material. Associated methods are also disclosed.Type: GrantFiled: July 19, 2012Date of Patent: January 12, 2016Assignee: REC SOLAR PTE, LTD.Inventors: Per Bakke, Egor Vladimirov, Pouria Homayonifar, Alexandre Teixeira
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Publication number: 20150228831Abstract: 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).Type: ApplicationFiled: September 10, 2013Publication date: August 13, 2015Applicant: REC SOLAR PTE. LTD.Inventors: Philipp Johannes Rostan, Robert Wade, Noel Gonzales Diesta, Shankar Gauri Sridhara, Anders Søreng
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Patent number: D741793Type: GrantFiled: March 18, 2014Date of Patent: October 27, 2015Assignee: REC Solar Pte. Ltd.Inventor: Raymond Yang Ming Lim