公开(公告)号：US20190131475A1

公开(公告)日：2019-05-02

申请号：US16309794

申请日：2017-06-23

Applicant: BYD COMPANY LIMITED

Inventor： Xiang SUN ,  Yunjiang YAO ,  Ye TIAN ,  Yuntan ZHOU ,  Meiling TENG ,  Zhanfeng JIANG

IPC: H01L31/05 ,  H01L31/028 ,  H01L31/0224 ,  H01L31/0216 ,  H01L31/18

Abstract: The disclosure discloses a photovoltaic cell, a photovoltaic cell array, a solar cell, and a method for preparing a photovoltaic cell. The photovoltaic cell includes: a silicon wafer, a gate line layer, a side electrode, a first electrode, a back electrical layer, and a second electrode. The silicon wafer includes a silicon substrate, a front diffusion layer, a side division layer, and a back division layer. At least a part of at least one of the side division layer and the back division layer is a diffusion layer whose type is the same as that of the front diffusion layer. The gate line layer is disposed on the front diffusion layer. The side electrode is disposed on the side division layer and is electrically connected to the gate line layer. The first electrode is disposed on the back division layer and is electrically connected to the side electrode. The back electrical layer and the second electrode are both disposed on a back surface of the silicon wafer. The back electrical layer is electrically connected to the second electrode and is not in contact with the first electrode.

公开(公告)号：US20190273170A1

公开(公告)日：2019-09-05

申请号：US16320218

申请日：2017-07-21

Applicant: BYD COMPANY LIMITED

Inventor： Xiang SUN ,  Yunjiang YAO ,  Zhanfeng JIANG

IPC: H01L31/048 ,  H01L31/0236 ,  H01L31/0224 ,  H01L31/054 ,  H01L31/0216 ,  C03C17/00

Abstract: The present disclosure provides a solar cell assembly, comprising a front plate, a front glue film layer, a cell piece array, a back glue film layer and a back plate which are sequentially stacked, wherein the front plate comprises glass, a side, deviating from the cell piece array, of the glass is provided with one or more light scattering units, and each light scattering unit is of a sunken structure formed when the side, deviating from the cell piece array, of the glass is sunken inwards towards a side, adjacent to the cell piece array, of the glass. The present disclosure provides that the light scattering unit is not needed to correspond to a non-gate line portion of a cell piece, a requirement for type correspondence of the glass and the cell piece is not high, it is guaranteed that a whole silicon wafer can utilize incident light rays very well, a light receiving area of the glass is increased, assembly power is improved, and assembly installing cost is lowered.

公开(公告)号：US20190140124A1

公开(公告)日：2019-05-09

申请号：US16309693

申请日：2017-06-23

Applicant: BYD COMPANY LIMITED

Inventor： Xiang SUN ,  Yunjiang YAO ,  Ye TIAN ,  Bei FAN ,  Zhanfeng JIANG

IPC: H01L31/05 ,  H01L31/0224

Abstract: The disclosure discloses a photovoltaic cell assembly, a photovoltaic cell array, and a solar cell assembly. The photovoltaic cell assembly includes: a plurality of photovoltaic cells arranged sequentially along a longitudinal direction, and at least one conductive band, where each photovoltaic cell includes a silicon wafer, a front conductive member disposed on a front surface of the silicon wafer, two electrodes disposed on a back surface of the silicon wafer, and a side conductive member that is disposed on a side surface of the silicon wafer and that is electrically connected between the front conductive member and one electrode, where the two electrodes extend along a transverse direction and are distributed at an interval in the longitudinal direction; and the conductive band has an extension direction the same as that of the electrode, and is electrically connected to two electrodes that are close to each other and that are respectively located on two neighboring photovoltaic cells, so that the two neighboring photovoltaic cells are connected in series or connected in parallel.