# US 12,119,420 B2 · Method for manufacturing photovoltaic module and photovoltaic module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,119,420 B2 - Document ID: US12119420B2 - Status: Granted - Kind: B2 - Application number: 18/490,663 - Filed: 2023-10-19 - Published: 2024-05-30 - Granted: 2024-10-15 - Earliest claimed: 2022-11-24 - Assignees: Jinko Solar (Haining) Co., Ltd. - Applicants: Jinko Solar (Haining) Co., Ltd. - Inventors: Shiliang Huang; Zhiqiu Guo; Yingli Guan; Jingguo Yang - Web page: https://patentgrep.com/patent/US12119420B2 ## CPC - H10F 19/80: Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells - H10F 19/908: {for back-contact photovoltaic cells} - H10F 19/804: {Materials of encapsulations} - H10F 19/85: Protective back sheets - H10F 19/902: {for series or parallel connection of photovoltaic cells} - Y02E 10/50: Photovoltaic [PV] energy - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A method for manufacturing a photovoltaic module and a photovoltaic module are provided. The method includes: laying a front plate, a first adhesive layer on the front plate, and a plurality of cells on the first adhesive layer, and pre-curing the first adhesive layer between the front plate and the plurality of cells; forming a plurality of cell strings by connecting the plurality of cells through a plurality of solder strips after the first adhesive layer is pre-cured; and laying a second adhesive layer on the plurality of cell strings, laying a back plate on the second adhesive layer, and curing the second adhesive layer between the back plate and the plurality of cell strings, to form the photovoltaic module. ## Claims ### Claim 1 A method for manufacturing a photovoltaic module, comprising: laying a front plate, a first adhesive layer on the front plate, and a plurality of cells on the first adhesive layer, and pre-curing the first adhesive layer between the front plate and the plurality of cells; fixing a position of a respective cell through a corresponding positioning tape before pre-curing the first adhesive layer; forming a plurality of cell strings by connecting the plurality of cells using a plurality of solder strips after the first adhesive layer is pre-cured; and laying a second adhesive layer on the plurality of cell strings, laying a back plate on the second adhesive layer, and curing the second adhesive layer between the back plate and the plurality of cell strings, to form the photovoltaic module; wherein a time for the pre-curing the first adhesive layer between the front plate and the plurality of cells is shorter than a time for the curing the second adhesive layer between the back plate and the plurality of cell strings. ### Claim 2 (depends on 1) The method of claim 1, wherein at least one of the first adhesive layer and the second adhesive layer is glue or an encapsulation adhesive film. ### Claim 3 (depends on 2) The method of claim 2, wherein laying the front plate, the first adhesive layer on the front plate, and the plurality of cells on the first adhesive layer, pre-curing the first adhesive layer, laying the second adhesive layer on the plurality of cell strings, laying the back plate on the second adhesive layer, and curing the second adhesive layer comprises: in response to the first adhesive layer and the second adhesive layer being glue, printing the glue on a side of the front plate close to the plurality of cells, laying the plurality of cells on the glue, and pre-curing the glue between the front plate and the plurality of cells; and printing the glue on the plurality of cell strings, laying the back plate on the glue, and curing the glue between the plurality of cell strings and the back plate; or in response to the first adhesive layer being glue and the second adhesive layer being the encapsulation adhesive film, printing glue on the side of the front plate close to the plurality of cells, laying the plurality of cells on the glue, and pre-curing the glue between the front plate and the plurality of cells; and laying a back encapsulation adhesive film on the plurality of cell strings and laying the back plate on the back encapsulation adhesive film, and laminating the front plate, the plurality of cell strings, the back encapsulation adhesive film, and the back plate that are stacked. ### Claim 4 (depends on 3) The method of claim 3, wherein the glue has a thickness in a range of not less than 0.1 mm in a direction perpendicular to the front plate. ### Claim 5 (depends on 3) The method of claim 3, wherein pre-curing the glue between the front plate and the plurality of cells includes heating curing, a temperature for the heating curing ranges from 100° ° C. to 200° C., and a time for the heating curing ranges from 5 min to 30 min. ### Claim 6 (depends on 3) The method of claim 3, wherein pre-curing the glue between the front plate and the plurality of cells includes ultraviolet (UV) curing, wherein the UV curing is performed by using a UV lamp with a wavelength of 365 nm and a curing time for the UV curing is in a range of 1 s to 60 s. ### Claim 7 (depends on 3) The method of claim 3, wherein a time for pre-curing the glue between the front plate and the plurality of cells is shorter than a time for curing the glue between the back plate and the plurality of cell strings. ### Claim 8 (depends on 3) The method of claim 3, wherein a time for laminating the front plate, the plurality of cell strings, the back encapsulation adhesive film, and the back plate that are stacked is in a range of 15 min to 25 min, and a temperature for the laminating ranges from 140° C. to 160° C. ### Claim 9 (depends on 2) The method of claim 2, wherein laying the front plate, the first adhesive layer on the front plate, and the plurality of cells on the first adhesive layer, pre-curing the first adhesive layer, laying the second adhesive layer on the plurality of cell strings, laying the back plate on the second adhesive layer, and curing the second adhesive layer comprises: in response to the first adhesive layer and the second adhesive layer being both encapsulation adhesive films, laying a front encapsulation adhesive film on a side of the front plate close to the plurality of cells, laying the plurality of cells on the front encapsulation adhesive film, and pre-laminating the front plate, the front encapsulation adhesive film, and the plurality of cells that are stacked; and laying a back encapsulation adhesive film on the plurality of cell strings, laying the back plate on the back encapsulation adhesive film, and laminating the front plate, the plurality of cell strings, the back encapsulation adhesive film, and the back plate that are stacked. ### Claim 10 (depends on 9) The method of claim 9, wherein a time for the pre-laminating the front plate, the front encapsulation adhesive film, and the plurality of cells that are stacked is not more than 10 min, and a temperature for the pre-laminating is not more than 140° C. ### Claim 11 (depends on 9) The method of claim 9, wherein a time for the laminating the front plate, the plurality of cell strings, the back encapsulation adhesive film, and the back plate that are stacked is in a range of 10 min to 20 min, and a temperature for the laminating is in a range of 140° ° C. to 160° C. ### Claim 12 (depends on 2) The method of claim 2, wherein laying the front plate, the first adhesive layer on the front plate, and the plurality of cells on the first adhesive layer, pre-curing the first adhesive layer, laying the second adhesive layer on the plurality of cell strings, laying the back plate on the second adhesive layer, and curing the second adhesive layer comprises: in response to the first adhesive layer being an encapsulation adhesive film and the second adhesive layer being glue, laying a front encapsulation adhesive film on the side of the front plate close to the plurality of cells, laying the plurality of cells on the front encapsulation adhesive film, and laminating the front plate, the front encapsulation adhesive film, and the plurality of cells that are stacked; and printing the glue on the plurality of cell strings, laying the back plate on the glue, and curing the glue between the plurality of cell strings and the back plate. ### Claim 13 (depends on 12) The method of claim 12, wherein a time for laminating the front plate, the front encapsulation adhesive film, and the plurality of cells that are stacked is in a range of 20 min to 25 min, and a temperature for the laminating ranges from 140° ° C. to 160° C. ### Claim 14 (depends on 1) The method of claim 1, wherein a thickness of the first adhesive layer after the first adhesive layer is pre-cured is not less than half of a thickness of the respective cell.