公开(公告)号：US20160126391A1

公开(公告)日：2016-05-05

申请号：US14928863

申请日：2015-10-30

Applicant: BYD COMPANY LIMITED

Inventor： Xiang SUN ,  Shencun WANG ,  Jinxin XUE ,  Zhanfeng JIANG

IPC: H01L31/05 ,  H01L31/048 ,  H01L31/049

CPC classification number: H01L31/0508 ,  H01L31/0488 ,  H01L31/049 ,  Y02E10/50

Abstract: The present disclosure discloses a solar cell module and a manufacturing method thereof. The solar cell module includes an upper glass plate, a front adhesive layer, a solar cell array, a back adhesive layer and a back plate superposed in sequence. The back plate is a water vapor insulation back plate having a transmission rate less than or equal to 0.1 mg/m2/day; the solar cell array comprises a plurality of cells and conductive wires, adjacent cells being connected by the conductive wires; the cells are provided with secondary grid lines on front surfaces thereof, and the conductive wires are welded with the secondary grid lines by a welding layer with an alloy which contains Sn and Bi. The solar cell module according to the embodiments of the present disclosure can improve the connection effect of the conductive wires and the cells, so as to guarantee the photoelectric conversion efficiency. Moreover, the upper glass plate, the front adhesive layer, the back adhesive layer and the lower glass or metal plate may seal the welding layer effectively to protect the cell array, so as to slow down the corrosion of the solar cell module and to prolong the service life.

Abstract translation: 本公开公开了一种太阳能电池组件及其制造方法。 太阳能电池模块包括上玻璃板，前粘合剂层，太阳能电池阵列，背粘合剂层和依次叠加的背板。 背板是透水率小于或等于0.1mg / m 2 /天的水蒸气绝缘背板; 太阳能电池阵列包括多个电池和导线，相邻电池通过导线连接; 电池在其表面上设置有次级栅格线，并且导电线通过具有包含Sn和Bi的合金的焊接层与次级栅格线焊接。 根据本公开的实施例的太阳能电池模块可以提高导线和电池的连接效果，以保证光电转换效率。 此外，上玻璃板，前粘合剂层，背粘合层和下玻璃或金属板可有效地密封焊接层以保护电池阵列，从而减缓太阳能电池组件的腐蚀并延长 使用寿命。

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：US20160126363A1

公开(公告)日：2016-05-05

申请号：US14738390

申请日：2015-06-12

Applicant: BYD COMPANY LIMITED

Inventor： Xiang SUN ,  Shencun WANG ,  Jinxin XUE ,  Zhiqiang ZHAO ,  Zhanfeng JIANG

IPC: H01L31/02 ,  H01L31/048

CPC classification number: H01L31/02013 ,  H01L31/02008 ,  H01L31/022433 ,  H01L31/048 ,  H01L31/0488 ,  H01L31/049 ,  H01L31/0504 ,  H01L31/0508 ,  H01L31/18 ,  Y02E10/50

Abstract: A solar cell module comprises an upper glass plate, a front adhesive layer, a solar cell array, a back adhesive layer and a back plate superposed in sequence. The solar cell array comprises a plurality of cells, adjacent cells connected by a metal wire. At least one metal wire extends reciprocally between a surface of a first cell and a surface of a second cell adjacent to the first cell to form at least two conductive wires. The cells comprise secondary grid lines disposed on front surfaces thereof. The conductive wires are being welded with the secondary grid lines. At least one of the front adhesive layer and the back adhesive layer has a thickness of larger than or equal to the metal wire in a direction perpendicular to the cell, and smaller than 400 μm.

Abstract translation: 太阳能电池模块包括上玻璃板，前粘合剂层，太阳能电池阵列，背粘合剂层和依次叠加的背板。 太阳能电池阵列包括多个电池，相邻电池通过金属线连接。 至少一个金属线在第一单元的表面和与第一单元相邻的第二单元的表面之间往复移动以形成至少两根导电线。 细胞包括设置在其前表面上的次级栅格线。 导线正在与次级栅格线焊接。 前粘合剂层和背粘合剂层中的至少一个在垂直于电池的方向上具有大于或等于金属线的厚度，并且小于400μm。

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.