# US 2014/0150844 A1 · Connection sheet for solar battery cell electrode, process for manufacturing solar cell module, and solar cell module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0150844 A1 - Document ID: US20140150844A1 - Status: Published application - Kind: A1 - Application number: 14/173,441 - Filed: 2014-02-05 - Published: 2014-06-05 - Earliest claimed: 2009-03-11 - Assignees: Shin-Etsu Chemical Co., Ltd. - Applicants: Shin-Etsu Chemical Co., Ltd. - Inventors: Syuichi AZECHI; Ikuo SAKURAI; Masakatsu HOTTA; Takeshi HASHIMOTO - Web page: https://patentgrep.com/patent/US20140150844A1 ## CPC - H10F 77/955: {for photovoltaic devices} - C09J 183/04: Polysiloxanes - H01B 1/22: the conductive material comprising metals or alloys - H10F 19/906: {characterised by the materials of the structures} - C08G 77/12: containing silicon bound to hydrogen - C08G 77/20: containing silicon bound to unsaturated aliphatic groups - C08K 3/04: Carbon - C08K 3/22: of metals - C08K 3/34: Silicon-containing compounds - C08K 3/36: Silica - C08K 5/0025: {Crosslinking or vulcanising agents; including accelerators} - Y02E 10/50: Photovoltaic [PV] energy - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract Disclosed is a connection sheet for a solar battery cell electrode, which is a polymer sheet for use in the connection between an electrode for extracting an electric power from a solar battery cell and a wiring member through an electrically conductive adhesive material by heating and pressurizing, and which is intercalated between a heating/pressurizing member and the wiring member upon use. ## Claims ### Claim 1 A method for manufacturing a solar cell module, comprising: connecting a power-extracting electrode of a solar cell and an interconnect member via an electroconductive adhesive material by applying heat and pressure across them; and interposing a solar cell electrode connection-providing sheet between a heat and pressure member and the interconnect member prior to the step of applying heat and pressure, wherein the solar cell electrode connection-providing sheet comprises a polymer sheet. ### Claim 2 A method for manufacturing a solar cell module, comprising: connecting front and back surface electrodes disposed on opposite surfaces of each solar cell for extracting power therefrom and interconnect members via an electroconductive adhesive material by applying heat and pressure across them; and interposing a solar cell electrode connection-providing sheets between heat and pressure members and the interconnect members and applying heat and pressure for simultaneously connecting the front and back surface electrodes and the interconnect members, wherein the solar cell electrode connection-providing sheet comprises a polymer sheet. ### Claim 3 (depends on 1) A solar cell module comprising a single solar cell having an electrode for extracting power therefrom and an interconnect member connected to the electrode, which is manufactured by the method of claim 1. ### Claim 4 (depends on 3) A solar cell module comprising a plurality of arranged solar cells as set forth in claim 3, wherein power-extracting electrodes of adjacent solar cells are connected by the interconnect member. ### Claim 5 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said polymer sheet comprises at least one component selected from a heat resistant resin, fluoro-rubber, and silicone rubber. ### Claim 6 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said polymer sheet comprises at least one heat resistant resin selected from a fluoroplastic and a polyamide resin, having a glass transition temperature of at least 200° C. or a melting point of at least 300° C. ### Claim 7 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said polymer sheet is reinforced with a cloth and/or fibers made of an inorganic material and/or a heat resistant resin. ### Claim 8 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said polymer sheet contains a heat conductive filler comprising at least one inorganic material selected from the group consisting of metals, metal oxides, metal nitrides, metal carbides, metal hydroxides, and carbon allotropes. ### Claim 9 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said polymer sheet is a silicone rubber sheet obtained by shaping a silicone rubber composition into a sheet and heat curing the sheet, said silicone rubber composition comprising: (A) 100 parts by weight of a crosslinkable organopolysiloxane having an average degree of polymerization of at least 100; (B) 0 to 600 parts by weight of at least one heat conductive powder selected from the group consisting of metals, metal oxides, metal nitrides, metal carbides, metal hydroxides, and carbon allotropes; (C) 0 to 80 parts by weight of a carbon black powder; (D) 0 to 50 parts by weight of a reinforcing silica powder having a BET specific surface area of at least 50 m2/g; and (E) an effective amount of a curing agent. ### Claim 10 (depends on 9) The method for manufacturing a solar cell module of claim 9, wherein the heat conductive powder as component (B) is blended in an amount of at least 5 parts by weight and is a metal silicon powder having an average particle size of 1 to 50 μm. ### Claim 11 (depends on 10) The method for manufacturing a solar cell module of claim 10, wherein said metal silicon powder has a forcedly oxidized film formed on surfaces. ### Claim 12 (depends on 9) The method for manufacturing a solar cell module of claim 9, wherein the heat conductive powder as component (B) is blended in an amount of at least 5 parts by weight and is a crystalline silicon dioxide powder having an average particle size of 1 to 50 p.m. ### Claim 13 (depends on 9) The method for manufacturing a solar cell module of claim 9, wherein said silicone rubber sheet has an elongation at break of 40 to 1,000% and a type A Durometer hardness of 10 to 90, at 23° C. ### Claim 14 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein the solar cell electrode connection-providing sheet has a heat conductivity of at least 0.3 W/mK. ### Claim 15 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein the solar cell electrode connection-providing sheet comprises at least two polymer sheets, which are stacked one on another, selected from the group consisting of: i) a polymer sheet comprising at least one component selected from a heat resistant resin, fluoro-rubber, and silicone rubber; ii) a polymer sheet comprising at least one heat resistant resin selected from a fluoroplastic and a polyamide resin, having a glass transition temperature of at least 200° C. or a melting point of at least 300° C.; iii) a polymer sheet reinforced with a cloth and/or fibers made of an inorganic material and/or a heat resistant resin; iv) a polymer sheet containing a heat conductive filler comprising at least one inorganic material selected from the group consisting of metals, metal oxides, metal nitrides, metal carbides, metal hydroxides, and carbon allotropes; v) a silicone rubber sheet obtained by shaping a silicone rubber composition into a sheet and heat curing the sheet, said silicone rubber composition comprising: (A) 100 parts by weight of a crosslinkable organopolysiloxane having an average degree of polymerization of at least 100; (B) 0 to 600 parts by weight of at least one heat conductive powder selected from the group consisting of metals, metal oxides, metal nitrides, metal carbides, metal hydroxides, and carbon allotropes; (C) 0 to 80 parts by weight of a carbon black powder; (D) 0 to 50 parts by weight of a reinforcing silica powder having a BET specific surface area of at least 50 m2/g; and (E) an effective amount of a curing agent; vi) a silicone rubber sheet obtained by shaping a silicone rubber composition into a sheet and heat curing the sheet, said silicone rubber composition comprising: (A) 100 parts by weight of a crosslinkable organopolysiloxane having an average degree of polymerization of at least 100; (B) 0 to 600 parts by weight of at least one heat conductive powder selected from the group consisting of metals, metal oxides, metal nitrides, metal carbides, metal hydroxides, and carbon allotropes; (C) 0 to 80 parts by weight of a carbon black powder; (D) 0 to 50 parts by weight of a reinforcing silica powder having a BET specific surface area of at least 50 m2/g; and (E) an effective amount of a curing agent, wherein the heat conductive powder as component (B) is blended in an amount of at least 5 parts by weight and is a metal silicon powder having an average particle size of 1 to 50 μm; vii) a silicone rubber sheet obtained by shaping a silicone rubber composition into a sheet and heat curing the sheet, said silicone rubber composition comprising: (A) 100 parts by weight of a crosslinkable organopolysiloxane having an average degree of polymerization of at least 100; (B) 0 to 600 parts by weight of at least one heat conductive powder selected from the group consisting of metals, metal oxides, metal nitrides, metal carbides, metal hydroxides, and carbon allotropes; (C) 0 to 80 parts by weight of a carbon black powder; (D) 0 to 50 parts by weight of a reinforcing silica powder having a BET specific surface area of at least 50 m2/g; and (E) an effective amount of a curing agent, wherein said metal silicon powder has a forcedly oxidized film formed on surfaces; viii) a silicone rubber sheet obtained by shaping a silicone rubber composition into a sheet and heat curing the sheet, said silicone rubber composition comprising: (A) 100 parts by weight of a crosslinkable organopolysiloxane having an average degree of polymerization of at least 100; (B) 0 to 600 parts by weight of at least one heat conductive powder selected from the group consisting of metals, metal oxides, metal nitrides, metal carbides, metal hydroxides, and carbon allotropes; (C) 0 to 80 parts by weight of a carbon black powder; (D) 0 to 50 parts by weight of a reinforcing silica powder having a BET specific surface area of at least 50 m2/g; and (E) an effective amount of a curing agent, wherein the heat conductive powder as component (B) is blended in an amount of at least 5 parts by weight and is a crystalline silicon dioxide powder having an average particle size of 1 to 50 μm; ix) a silicone rubber sheet obtained by shaping a silicone rubber composition into a sheet and heat curing the sheet, said silicone rubber composition comprising: (A) 100 parts by weight of a crosslinkable organopolysiloxane having an average degree of polymerization of at least 100; (B) 0 to 600 parts by weight of at least one heat conductive powder selected from the group consisting of metals, metal oxides, metal nitrides, metal carbides, metal hydroxides, and carbon allotropes; (C) 0 to 80 parts by weight of a carbon black powder; (D) 0 to 50 parts by weight of a reinforcing silica powder having a BET specific surface area of at least 50 m2/g; and (E) an effective amount of a curing agent, wherein said silicone rubber sheet has an elongation at break of 40 to 1,000% and a type A Durometer hardness of 10 to 90, at 23° C.; and x) a polymer sheet having a heat conductivity of at least 0.3 W/mK. ### Claim 16 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein the solar cell electrode connection-providing sheet has a thickness of 0.01 to 1 mm. ### Claim 17 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said interconnect member is a strip-like electroconductive member. ### Claim 18 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said interconnect member comprises at least one metal element selected from the group consisting of Cu, Ag, Au, Fe, Ni, Zn, Co, Ti, Pb, and Mg. ### Claim 19 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said interconnect member is coated with a solder. ### Claim 20 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said electroconductive adhesive material is an electroconductive resin adhesive comprising an insulating resin and electroconductive particles. ### Claim 21 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said electroconductive adhesive material is in film form. ### Claim 22 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said electroconductive adhesive material is a solder. ### Claim 23 (depends on 1) The method for manufacturing a solar cell module of claim 1, wherein said electroconductive adhesive material is formed on the interconnect member.