# US 2019/0172959 A1 · 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 2019/0172959 A1 - Document ID: US20190172959A1 - Status: Published application - Kind: A1 - Application number: 16/269,512 - Filed: 2019-02-06 - Published: 2019-06-06 - Earliest claimed: 2009-07-30 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Shigeharu TAIRA; Yukihiro YOSHIMINE; Hiroyuki KANNOU; Tomonori TABE - Web page: https://patentgrep.com/patent/US20190172959A1 ## CPC - H10F 77/215: {Geometries of grid contacts} - H10F 19/90: Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers (between thin-film photovoltaic cells on a single substrate H10F19/35) - H10F 19/902: {for series or parallel connection of photovoltaic cells} - H10F 77/211: {for photovoltaic cells} - H10F 77/937: {Busbar structures for modules} - H10F 77/939: {Output lead wires or elements} - H10F 19/908: {for back-contact photovoltaic cells} - H10F 77/219: {Arrangements for electrodes of back-contact 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 In the solar cell module including a plurality of solar cells interconnected with wiring members, each of the solar cells includes a plurality of front-side finger electrodes that are disposed on a light-receiving surface of the solar cell and connected with tabs and a plurality of rear-side finger electrodes that are disposed on a rear surface of the solar cell and connected with tabs. Rear-side auxiliary electrode sections are arranged in regions, which is wider than the front-side finger electrodes, on the rear surface opposite to regions where the front-side finger electrodes are present. ## Claims ### Claim at position 1 1-16. (canceled) ### Claim 17 A solar cell module comprising: a solar cell including a first main surface and a second main surface opposite to the first main surface; a first wiring member connected to the first main surface of the solar cell; and a second wiring member connected to the second main surface of the solar cell, wherein the solar cell comprises: a first electrode provided on the first main surface side of the solar cell and connected to the first wiring member, wherein the first electrode includes a plurality of first finger electrodes parallel to each other; and a plurality of second finger electrodes provided on the second main surface side of the solar cell and connected to the second wiring member, wherein the plurality of second finger electrodes are parallel to each other and face regions where the plurality of first finger electrodes are present, and the plurality of second finger electrodes are separated from each other in an area overlapping with the second wiring member, and each of the plurality of second finger electrodes includes a linear section and an auxiliary electrode section, wherein the auxiliary electrode section is provided in a region where the second wiring member is connected, a width of the auxiliary electrode section is greater than a width of the linear section, and the auxiliary electrode section comprises a same material as that of the linear section. ### Claim 18 (depends on 17) The solar cell module according to claim 17, wherein the first main surface comprises a light receiving surface of the solar cell, and the second main surface comprises a rear surface of the solar cell. ### Claim 19 (depends on 18) The solar cell module according to claim 18, wherein the solar cell further comprises a plurality of third finger electrodes provided on the rear surface side of the solar cell and parallel to each other, wherein the second wiring member is connected to the plurality of third finger electrodes, and the plurality of third finger electrodes face regions where the plurality of first finger electrodes are absent, and in a region where the second wiring member is connected, a width of each of the plurality of third finger electrodes is less than the width of the auxiliary electrode section. ### Claim 20 (depends on 18) The solar cell module according to claim 18, wherein a thickness of each of the plurality of first finger electrodes is greater than a thickness of each of the plurality of second finger electrodes. ### Claim 21 (depends on 17) The solar cell module according to claim 17, wherein the first electrode and the plurality of second finger electrodes are formed by screen-printing with a silver paste. ### Claim 22 (depends on 17) The solar cell module according to claim 17, wherein the plurality of second finger electrodes is connected to the second wiring member with an adhesive resin film having a light transmitting property. ### Claim 23 (depends on 17) The solar cell module according to claim 17, wherein the second wiring member comprises: a copper foil; and a conductive film comprising at least one of tin and solder and provided on the copper foil, such that a part of each of the plurality of second finger electrodes is embedded in the conductive film of the second wiring member. ### Claim 24 (depends on 17) The solar cell module according to claim 17, wherein the linear section extends in a direction, and a length, in the direction, of the auxiliary electrode section is greater than a width of the second wiring member. ### Claim 25 A solar cell module comprising: a solar cell including a light receiving surface and a rear surface opposite to the light receiving surface; a first wiring member connected to the light receiving surface of the solar cell; and a second wiring member connected to the rear surface of the solar cell, wherein the solar cell comprises: a first electrode provided on the light receiving surface side of the solar cell and connected to the first wiring member, wherein the first electrode includes a plurality of first finger electrodes parallel to each other; and a second electrode provided on the rear surface side of the solar cell and connected to the second wiring member, wherein the second electrode includes: a plurality of second finger electrodes parallel to each other and facing regions where the plurality of first finger electrodes are present; a plurality of third finger electrodes parallel to each other and facing regions where the plurality of first finger electrodes are absent; and a bus bar electrode connected with the plurality of second finger electrodes and the plurality of third finger electrodes, each of the plurality of second finger electrodes includes a linear section and an auxiliary electrode section, wherein the auxiliary electrode section is provided in a region where the second wiring member is overlapped, a width of the auxiliary electrode section is greater than a width of the linear section, and the auxiliary electrode section comprises a same material as that of the linear section, and in the region where the second wiring member is overlapped, a width of each of the plurality of third finger electrodes is less than the width of the auxiliary electrode section. ### Claim 26 (depends on 25) The solar cell module according to claim 25, wherein a thickness of each of the plurality of first finger electrodes is greater than a thickness of each of the plurality of second finger electrodes. ### Claim 27 (depends on 25) The solar cell module according to claim 25, wherein the first electrode and the second electrode are formed by screen-printing with silver paste. ### Claim 28 (depends on 25) The solar cell module according to claim 25, wherein the plurality of second finger electrodes are connected to the second wiring member with an adhesive resin film having a light transmitting property. ### Claim 29 (depends on 25) The solar cell module according to claim 25, wherein the second wiring member comprises: a copper foil; and a conductive film comprising at least one of tin and solder and provided on the copper foil, such that a part of each of the plurality of second finger electrodes is embedded in the conductive film of the second wiring member. ### Claim 30 (depends on 25) The solar cell module according to claim 25, wherein the linear section extends in a direction, and a length, in the direction, of the auxiliary electrode section is greater than a width of the second wiring member.