US 12,433,040 B2
Sliced cell photovoltaic module
Shu Zhang, Changzhou (CN); Junpan Guo, Changzhou (CN); Hongwei Huang, Changzhou (CN); Jifan Gao, Changzhou (CN); Le Wang, Changzhou (CN); and Zhiqiang Feng, Changzhou (CN)
Assigned to Trina Solar Co., Ltd, Changzhou (CN); and Trina Solar (Changzhou) Science & Technology Co., Ltd, Changzhou (CN)
Appl. No. 17/761,562
Filed by TRINA SOLAR CO., LTD, Changzhou (CN); and TRINA SOLAR (CHANGZHOU) SCIENCE & TECHNOLOGY CO., LTD, Changzhou (CN)
PCT Filed May 28, 2020, PCT No. PCT/CN2020/092780
§ 371(c)(1), (2) Date Mar. 17, 2022,
PCT Pub. No. WO2021/051862, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 201910883009.4 (CN), filed on Sep. 18, 2019; and application No. 202010399450.8 (CN), filed on May 12, 2020.
Prior Publication US 2022/0384667 A1, Dec. 1, 2022
Int. Cl. H10F 19/90 (2025.01); H10F 19/70 (2025.01); H10F 77/00 (2025.01)
CPC H10F 19/902 (2025.01) [H10F 19/70 (2025.01); H10F 77/937 (2025.01)] 9 Claims
OG exemplary drawing
 
1. A sliced cell photovoltaic module,
wherein the sliced cell photovoltaic module comprises one or more cell units connected in series, each of the cell units comprises one cell string sequence or a plurality of cell string sequences connected in series or parallel, each of the cell string sequences comprises one cell string or a plurality of cell strings connected in parallel through a bus bar, each cell string comprises a plurality of small cell slices connected in series through a connection material, and a spacing between the plurality of small cell slices is −2 to 5 mm;
wherein each of the small cell slices is one of 2-8 independent small cell slices which are laser-cut from a 156*156 to 300*300 mm solar cell, each small cell slice has a positive electrode and a back electrode, and each of the positive electrodes and each of the back electrodes are positioned mutually coinciding or are on the edges of both ends of the small cell slice respectively,
wherein in each of the cell units, taking a middle bus bar as a boundary, the part above the middle bus bar is an upper part cell string while the part below the middle bus bar is a lower part cell string, the upper part cell string and the lower part cell string are connected in parallel with each other, and each cell unit is connected in parallel with a bypass diode,
wherein the sliced cell photovoltaic module comprises a first cell unit and a first bypass diode connected in parallel to the first cell unit, a second cell unit and a second bypass diode connected in parallel to the second cell unit, and a third cell unit and a third bypass diode connected in parallel to the third cell unit,
wherein the third bypass diode is connected to a first end of the upper part cell string and a second end of the lower part cell string within the third cell unit through a jumper,
wherein the first bypass diode, the second bypass diode, and the third bypass diode are all at a middle position in a longitudinal direction of the sliced cell photovoltaic module,
wherein the third bypass diode is connected in parallel to a cell string of the third cell unit through the jumper and the middle bus bar of the third cell unit, wherein the jumper is configured to transmit a module current under a normal operating condition of the sliced cell photovoltaic module, voltages of both ends of the first bypass diode and the second bypass diode are the same, and voltages of both ends of the third bypass diode are half of the voltages of both ends of the first bypass diode.