公开(公告)号：EP3394901A1

公开(公告)日：2018-10-31

申请号：EP16877737.3

申请日：2016-12-21

Applicant: BYD Company Limited

Inventor： SUN, Xiang ,  YAO, Yunjiang

IPC: H01L31/0224 ,  H01L31/18

CPC classification number: H01L31/022441 ,  H01L31/0516 ,  Y02E10/50

Abstract: A back contact solar cell substrate, a method of manufacturing the same and a back contact solar cell including the same are provided. The back contact solar cell substrate includes: a silicon chip, a light-receiving grid line disposed on a light-receiving surface of the silicon chip, a side connecting element disposed on a side surface of the silicon chip and insulated from the silicon chip; a positive electrode disposed on a backlight surface of the silicon chip; a negative electrode disposed on and insulated from the backlight surface of the silicon chip, and electrically connected to the light-receiving grid line through the side connecting element; and a back surface field disposed between the positive electrode and the backlight surface of the silicon chip, and electrically connected with the positive electrode.

公开(公告)号：EP3089219A1

公开(公告)日：2016-11-02

申请号：EP14873269.6

申请日：2014-08-15

Applicant: BYD Company Limited

Inventor： WANG, Shencun ,  SUN, Xiang ,  WANG, Shengya ,  JIANG, Zhanfeng

IPC: H01L31/048

CPC classification number: H01L31/0488 ,  B32B17/10036 ,  B32B17/10302 ,  B32B17/1055 ,  H01L31/02008 ,  H01L31/0201 ,  H01L31/048 ,  H01L31/0481 ,  H02S30/10 ,  H02S40/34 ,  Y02E10/50

Abstract: A photovoltaic cell module includes: a transparent upper cover plate (11), a first polyolefin encapsulation layer (12), a cell group layer (13), a second polyolefin encapsulation layer (14), and a backplane (15) that are sequentially disposed in a laminated manner, where outer edges of the transparent upper cover plate (11) and the backplane exceed outer edges of the first polyolefin encapsulation layer (12), the cell group layer (13), and the second polyolefin encapsulation layer (14), an end part sealing block is further disposed between the transparent upper cover plate (11) and the backplane, and the end part sealing block is located at peripheries of the first polyolefin encapsulation layer (12), the cell group layer (13), and the second polyolefin encapsulation layer (14).

Abstract translation: 一种光伏电池模块，包括：依次连续排列的透明上盖板（11），第一聚烯烃封装层（12），电池组层（13），第二聚烯烃封装层（14）和背板（15） （11）和背板的外边缘超过第一聚烯烃封装层（12），电池组层（13）和第二聚烯烃封装层（14）的外边缘 ），所述透明上盖板（11）与所述背板之间还设置有端部密封块，所述端部密封块位于所述第一聚烯烃封装层（12），所述电池组层（13）的周边， 和第二聚烯烃封装层（14）。

公开(公告)号：EP3480860A1

公开(公告)日：2019-05-08

申请号：EP17819185.4

申请日：2017-06-23

Applicant: BYD Company Limited

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

IPC: H01L31/05

CPC classification number: H01L31/0504 ,  H01L31/022425 ,  H01L31/022441 ,  H01L31/03529 ,  H01L31/0516 ,  H01L31/068 ,  Y02E10/50

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.

公开(公告)号：EP3480859A1

公开(公告)日：2019-05-08

申请号：EP17819184.7

申请日：2017-06-23

Applicant: BYD Company Limited

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

IPC: H01L31/05 ,  H01L31/0224

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：EP3198656A1

公开(公告)日：2017-08-02

申请号：EP15855152.3

申请日：2015-10-30

Applicant: BYD Company Limited

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

IPC: H01L31/048 ,  H01L31/042 ,  H01L31/18

CPC classification number: H01L31/042 ,  H01L31/022425 ,  H01L31/0488 ,  H01L31/049 ,  H01L31/0508 ,  H01L31/0512 ,  Y02E10/50

Abstract: The present invention 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 0.1mg/m
2 /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 invention 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: 本发明公开了一种太阳能电池模块及其制造方法。 太阳能电池组件包括依次叠置的上玻璃板，前粘合剂层，太阳能电池阵列，背部粘合剂层和背板。 背板是传输速率小于或等于0.1mg / m 2 /天的水蒸气绝缘背板; 太阳能电池阵列包括多个单元和导线，相邻单元由导线连接; 电池在其前表面上设置有辅助栅格线，并且导电线通过具有包含Sn和Bi的合金的焊接层与辅助栅格线焊接。 根据本发明实施例的太阳能电池组件可以提高导线与电池的连接效果，从而保证光电转换效率。 而且，上玻璃板，前粘合层，后粘合层和下玻璃或金属板可以有效地密封焊接层以保护电池阵列，从而减缓太阳能电池模块的腐蚀并延长 使用寿命。

公开(公告)号：EP3089355A1

公开(公告)日：2016-11-02

申请号：EP14875670.3

申请日：2014-08-15

Applicant: BYD Company Limited

Inventor： WANG, Shencun ,  SUN, Xiang ,  JIANG, Zhanfeng ,  HE, Long

IPC: H02S30/10 ,  H01L31/048 ,  H01L31/052

CPC classification number: H01L31/0488 ,  H01L31/0543 ,  H02S30/10 ,  H02S40/34 ,  Y02E10/52

Abstract: A double-glass photovoltaic cell module includes: a body (1), where the body (1) includes a first glass layer (11), a first encapsulation layer (12), a cell group layer (13), a second encapsulation layer (14), and a second glass layer (15) that are sequentially disposed in a laminated manner, where outer edges of the first glass layer (11) and the second glass layer (15) exceed an outer edge of the cell group layer (13); a reflecting coating provided on the second glass layer (15); an end part sealing block, disposed between the first glass layer (11) and the second glass layer (15), and located at peripheries of the first encapsulation layer (12), the cell group layer (13), and the second encapsulation layer (14); a frame (6), encapsulated at a periphery of the body and having a notch (60); and a connection box (4), disposed at the notch (60).

Abstract translation: 双玻璃光伏电池模块包括：主体（1），其中主体（1）包括第一玻璃层（11），第一封装层（12），单元组层（13），第二封装层 （14）和第一玻璃层（11）和第二玻璃层（15）的外边缘超过单元组层的外边缘的层叠方式依次设置的第二玻璃层（15） 13）; 设置在所述第二玻璃层（15）上的反射涂层; 设置在第一玻璃层（11）和第二玻璃层（15）之间并位于第一封装层（12），电池组层（13）和第二封装层（12）的周围的端部密封块 （14）; 框架（6），其封装在所述主体的周边并具有凹口（60）; 以及设置在所述凹口（60）处的接线盒（4）。

公开(公告)号：EP3089221A1

公开(公告)日：2016-11-02

申请号：EP14875406.2

申请日：2014-08-15

Applicant: BYD Company Limited

Inventor： WANG, Shencun ,  SUN, Xiang ,  WANG, Shengya ,  JIANG, Zhanfeng

IPC: H01L31/048 ,  H02S40/34 ,  H02S30/10

CPC classification number: H02S40/34 ,  H01L31/044 ,  H01L31/0488 ,  H02S30/10 ,  Y02E10/50

Abstract: A double-glass photovoltaic module includes: a body (1), where the body (1) includes a first glass layer (11), a first encapsulation layer (12), a cell group layer (13), a second encapsulation layer (14), and a second glass layer (15) that are sequentially disposed in a laminated manner, the cell group layer (13) extracts a current by using a bus bar (131), and the bus bar (131) is led out between the first glass layer (11) and the second glass layer (15) and from an edge of the body (1); a frame (6), encapsulated at a periphery of the body (1) by a sealant and having a notch (60); and a connection box (4), disposed at the notch (60),and sealed and connected to the body (1) the frame (6), and the bus bar (131) is electrically connected to the connection box (4).

Abstract translation: 双玻璃光伏模块包括：主体（1），其中主体（1）包括第一玻璃层（11），第一封装层（12），单元组层（13），第二封装层 14）和顺序地层叠设置的第二玻璃层（15），电池组层（13）通过使用母线（131）提取电流，并且母线（131）被引出在 所述第一玻璃层（11）和所述第二玻璃层（15）和所述主体（1）的边缘; 框架（6），其通过密封剂封装在所述主体（1）的周围并具有凹口（60）; 以及设置在所述凹口（60）处并且连接到所述主体（1）所述框架（6）并且所述母线（131）电连接到所述接线盒（4）的接线盒（4）。

公开(公告)号：EP3089220A1

公开(公告)日：2016-11-02

申请号：EP14875282.7

申请日：2014-08-15

Applicant: BYD Company Limited

Inventor： WANG, Shencun ,  SUN, Xiang ,  JIANG, Zhanfeng ,  HE, Long

IPC: H01L31/048

CPC classification number: H01L31/0488 ,  H01L31/0201 ,  H01L31/048 ,  H01L31/0481 ,  H02S30/10 ,  H02S40/34 ,  Y02E10/50

Abstract: A photovoltaic cell module includes: a transparent upper cover plate, a first liquid silica-gel encapsulation layer, a cell group layer, a second liquid silica-gel encapsulation layer, and a backplane that are sequentially disposed in a laminated manner, where outer edges of the transparent upper cover plate and the backplane exceed outer edges of the first liquid silica-gel encapsulation layer, the cell group layer, and the second liquid silica-gel encapsulation layer, an end part sealing block is further disposed between the transparent upper cover plate and the backplane, and the end part sealing block is located at peripheries of the first liquid silica-gel encapsulation layer, the cell group layer, and the second liquid silica-gel encapsulation layer.

Abstract translation: 光伏电池模块包括：以层叠方式依次布置的透明上盖板，第一液体硅胶封装层，单元组层，第二液体硅胶封装层和背板，其中外边缘 透明上盖板和底板超过第一液体硅胶封装层，电池组层和第二液体硅胶封装层的外边缘，端部密封块还设置在透明上盖板 板和背板，端部密封块位于第一液体硅胶封装层，电池组层和第二液体硅胶封装层的周边。

公开(公告)号：EP3480860B1

公开(公告)日：2020-11-11

申请号：EP17819185.4

申请日：2017-06-23

Applicant: BYD Company Limited

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

IPC: H01L31/05 ,  H01L31/0224 ,  H01L31/0352 ,  H01L31/068

公开(公告)号：EP3477708A1

公开(公告)日：2019-05-01

申请号：EP17833494.2

申请日：2017-07-21

Applicant: BYD Company Limited

Inventor： SUN, Xiang ,  YAO, Yunjiang ,  JIANG, Zhanfeng

IPC: H01L31/048 ,  H01L31/054

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.