# US 2013/0152993 A1 · Solar cell 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 2013/0152993 A1 - Document ID: US20130152993A1 - Status: Published application - Kind: A1 - Application number: 13/661,018 - Filed: 2012-10-25 - Published: 2013-06-20 - Earliest claimed: 2011-12-15 - Assignees: Au Optronics Corporation - Inventors: Chun-Ming Yang; Huang-Chi Tseng; Yao-Hsien Chung; Wei-Jieh Lee - Web page: https://patentgrep.com/patent/US20130152993A1 ## CPC - H10F 77/211: {for photovoltaic cells} - H10F 19/902: {for series or parallel connection of photovoltaic cells} - H10F 77/937: {Busbar structures for modules} - 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 The present invention provides a solar cell including a substrate, a first front bus, and a first rear bus. The substrate has a front surface and a rear surface. The first front bus is located on the front surface of the substrate along a first direction for collecting current generated by the substrate, and for providing a first front contact electrode. The first rear bus is located on the rear surface of the substrate along a second direction different from the first direction for collecting current generated by the substrate, and for providing a first rear contact electrode. ## Claims ### Claim 1 A solar cell, comprising: a substrate, having a front surface and a rear surface; a first front bus, located on the front surface of the substrate along a first direction for collecting current generated by the substrate, and for providing a first front contact electrode; and a first rear bus, located on the rear surface of the substrate along a second direction different from the first direction for collecting current generated by the substrate, and for providing a first rear contact electrode. ### Claim 2 (depends on 1) The solar cell of claim 1, further comprising: a second front bus, located on the front surface of the substrate along the second direction for collecting current generated by the substrate, and for providing a second front contact electrode; and a second rear bus, located on the rear surface of the substrate along the first direction for collecting current generated by the substrate, and for providing a second rear contact electrode. ### Claim 3 (depends on 1) The solar cell of claim 1, wherein the first rear contact electrode comprises a plurality of electrodes sequentially arranged along the second direction. ### Claim 4 (depends on 3) The solar cell of claim 3, further comprising: a plurality of front finger bus, extended from and electrically connected to the first front bus. ### Claim 5 (depends on 1) The solar cell of claim 1, wherein the first rear contact electrode comprises two contact surfaces arranged at opposite edges of the rear surface of the substrate respectively. ### Claim 6 (depends on 5) The solar cell of claim 5, further comprising: a plurality of front finger bus, extended from and electrically connected to the first front bus. ### Claim 7 (depends on 1) The solar cell of claim 1, further comprising: a plurality of front finger bus, extended from and electrically connected to the first front bus. ### Claim 8 A solar cell module, comprising: a first solar cell string, comprising a plurality of first solar cells electrically connected to each other in series along a first direction, the plurality of first solar cells comprising a first bridge solar cell; a second solar cell string, comprising a plurality of second solar cells electrically connected to each other in series, the plurality of second solar cells comprising a second bridge solar cell; and a first conducting strip, for electrically connecting a surface of the first bridge solar cell to a surface of the second bridge solar cell along a second direction different from the first direction; wherein the plurality of second solar cells are electrically connected to each other in series along a third direction different from the second direction. ### Claim 9 (depends on 8) The solar cell module of claim 8, wherein the first bridge solar cell comprises: a first substrate, having a front surface and a rear surface, the front surface of the first substrate being utilized for receiving light; a first front bus, located on the front surface of the first substrate along the first direction for collecting current generated by the first substrate, and for providing a first front contact electrode; and a first rear bus, located on the rear surface of the first substrate along the second direction for collecting current generated by the substrate, and for providing a first rear contact electrode; and wherein the second bridge solar cell comprises: a second substrate, having a front surface and a rear surface, the front surface of the second substrate being utilized for receiving light; a second front bus, located on the front surface of the second substrate along the second direction for collecting current generated by the second substrate, and for providing a second front contact electrode electrically connected to the first rear contact electrode of the first bridge solar cell; and a second rear bus, located on the rear surface of the second substrate along the third direction for collecting current generated by the second substrate, and for providing a second rear contact electrode. ### Claim 10 (depends on 9) The solar cell of claim 9, wherein one of the first front contact electrode, the first rear contact electrode, the second front contact electrode and the second rear contact electrode comprises a plurality of electrodes adjacent to each other. ### Claim 11 (depends on 9) The solar cell of claim 9, wherein the first front contact electrode of the first bridge solar cell is electrically connected to a second conducting strip, and the first bridge solar cell is electrically connected to a first solar cell of the first solar cell string via the second conducting strip; wherein the second rear contact electrode of the second bridge solar cell is electrically connected to a third conducting strip, and the second bridge solar cell is electrically connected to a second solar cells of the second solar cell string via the third conducting strip; and wherein the first rear contact electrode of the first bridge solar cell is electrically connected to the first conducting strip, and the first bridge solar cell is electrically connected to the second front contact electrode of the second bridge solar cell via the first conducting strip. ### Claim 12 (depends on 9) The solar cell module of claim 9, wherein the first rear contact electrode comprises two contact surfaces arranged at opposite edges of the rear surface of the first substrate respectively. ### Claim 13 (depends on 12) The solar cell module of claim 12, further comprising: a plurality of front finger bus, extended from and electrically connected to the first front bus. ### Claim 14 (depends on 9) The solar cell module of claim 9, further comprising: a plurality of front finger bus, extended from and electrically connected to the first front bus. ### Claim 15 (depends on 8) The solar cell module of claim 8, wherein the third direction is different from the first direction. ### Claim 16 (depends on 8) The solar cell module of claim 8, wherein the first bridge solar cell comprises a first lateral surface; the second bridge solar cell comprises a second lateral surface opposite to the first lateral surface; a first space is formed between four edges of the first lateral surface and four edges of the second lateral surface; and the first conducting strip having a first contact part, a second contact part, and a transmission part, wherein the first contact part is electrically connected to the first bridge solar cell, the second contact part is electrically connected to the second bridge solar cell, and the transmission part connected between the first contact part and the second contact part is arranged inside the first space. ### Claim 17 A solar cell module, comprising: a first solar cell string, comprising a plurality of first solar cells electrically connected to each other in series along a first direction, the plurality of first solar cells comprising a first bridge solar cell with a first lateral surface; a second solar cell string, comprising a plurality of second solar cells electrically connected to each other in series along a second direction, the plurality of second solar cells comprising a second bridge solar cell with a second lateral surface opposite to the first lateral surface, a first space is formed between four edges of the first lateral surface and four edges of the second lateral surface; and a first conducting strip, for electrically connecting the first bridge solar cell to the second bridge solar cell, the first conducting strip having a first contact part, a second contact part, and a transmission part, wherein the first contact part is electrically connected to the first bridge solar cell, the second contact part is electrically connected to the second bridge solar cell, and the transmission part connected between the first contact part and the second contact part is arranged inside the first space. ### Claim 18 (depends on 17) The solar cell module of claim 17, wherein the first conducting strip is arranged along a third direction different from the first direction and the second direction. ### Claim 19 (depends on 17) The solar cell module of claim 17, wherein the second direction is different from the first direction.