公开(公告)号：US20160126390A1

公开(公告)日：2016-05-05

申请号：US14738664

申请日：2015-06-12

Applicant: BYD COMPANY LIMITED

Inventor： Zhiqiang ZHAO ,  Zhanfeng JIANG ,  Long HE

IPC: H01L31/05 ,  H01L31/048 ,  H01L31/02

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 unit comprises a cell. The cell includes a cell substrate and a secondary grid line disposed on a front surface of the cell substrate. The solar cell unit also comprises a conductive wire intersecting and welded with the secondary grid line. The solar cell unit further comprises a welding portion disposed in a welding position of the secondary grid line with the conductive wire. The welding portion has a projection area larger than that of the secondary grid line with an equal length to the welding portion in a non-welding position.

Abstract translation: 太阳能电池单元包括电池。 电池包括设置在电池基板的前表面上的电池基板和辅格栅线。 太阳能电池单元还包括与第二栅极线相交并焊接的导线。 太阳能电池单元还包括焊接部分，其设置在具有导线的辅助栅格线的焊接位置。 焊接部分具有比在非焊接位置具有与焊接部分相同的长度的二次栅格线的投影面积。

公开(公告)号：US20160126366A1

公开(公告)日：2016-05-05

申请号：US14738587

申请日：2015-06-12

Applicant: BYD COMPANY LIMITED

Inventor： Zhiqiang ZHAO ,  Zhanfeng JIANG ,  Long HE

IPC: H01L31/02 ,  H01L31/048 ,  H01L31/05 ,  H01L31/049 ,  H01L31/0224

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

Abstract: A solar cell unit comprises a cell. The cell includes a cell substrate and a plurality of secondary grid lines disposed on a front surface of the cell substrate. The secondary grid lines comprises an edge secondary grid line adjacent to an edge of the cell substrate and a middle secondary grid line disposed inside of the edge secondary grid line. The secondary grid line comprises a welding portion. At least one welding portion of the edge secondary grid line has a projection area in the cell substrate larger than a welding portion of the middle secondary grid line. The solar cell unit also comprises a plurality of conductive wires spaced apart from each other and welded with the secondary grid lines in the welding portion.

Abstract translation: 太阳能电池单元包括电池。 电池包括电池基板和设置在电池基板的前表面上的多个次级栅格线。 次级栅格线包括与单元基板的边缘相邻的边缘辅助栅格线和设置在边缘二次栅格线内侧的中间二次栅格线。 二次栅格线包括焊接部分。 边缘二次栅格线的至少一个焊接部分在单元基板中具有比中间二次栅格线的焊接部分大的投影区域。 太阳能电池单元还包括彼此间隔开并与焊接部分中的次级栅格线焊接的多个导线。

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：US20160126362A1

公开(公告)日：2016-05-05

申请号：US14738409

申请日：2015-06-12

Applicant: BYD COMPANY LIMITED

Inventor： Zhiqiang ZHAO ,  Zhanfeng JIANG ,  Long HE

IPC: H01L31/02 ,  H01L31/18

Abstract: A 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 a plurality of conductive wires. The number of the conductive wires is n, y−y×20%≦n≦y+y×20%, in which n is an integer and y=4.0533X−1.28/1562*A*B, in which X is a diameter value of the metal wire with mm as a unit, 0.1≦X≦0.5, A and B representing length and width of the cell with mm as the unit. The cells comprise secondary grid lines disposed on front surfaces thereof. The conductive wires are welded with the secondary grid lines by a welding layer.

Abstract translation: 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地延伸以形成多个导电线。 导线的数量为n，y-y×20％＆nlE; n＆nlE; y + y×20％，其中n为整数，y = 4.0533X-1.28 / 1562 * A * B，其中X为 以mm为单位的金属线的直径值为0.1＆nlE; X＆nlE; 0.5，A和B表示以mm为单位的单元的长度和宽度。 细胞包括设置在其前表面上的次级栅格线。 导线通过焊接层与次级栅格线焊接。

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：US20190051764A9

公开(公告)日：2019-02-14

申请号：US14738587

申请日：2015-06-12

Applicant: BYD COMPANY LIMITED

Inventor： Zhiqiang ZHAO ,  Zhanfeng JIANG ,  Long HE

IPC: H01L31/02 ,  H01L31/049 ,  H01L31/0224 ,  H01L31/05 ,  H01L31/048

Abstract: A solar cell unit comprises a cell. The cell includes a cell substrate and a plurality of secondary grid lines disposed on a front surface of the cell substrate. The secondary grid lines comprises an edge secondary grid line adjacent to an edge of the cell substrate and a middle secondary grid line disposed inside of the edge secondary grid line. The secondary grid line comprises a welding portion. At least one welding portion of the edge secondary grid line has a projection area in the cell substrate larger than a welding portion of the middle secondary grid line. The solar cell unit also comprises a plurality of conductive wires spaced apart from each other and welded with the secondary grid lines in the welding portion.

公开(公告)号：US20160126388A1

公开(公告)日：2016-05-05

申请号：US14738368

申请日：2015-06-12

Applicant: BYD COMPANY LIMITED

Inventor： Zhiqiang ZHAO ,  Zhanfeng JIANG ,  Long HE

IPC: H01L31/05 ,  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 array comprises a plurality of solar cells and a metal wire disposed on adjacent solar cells. The metal wire extends between a surface of a first cell and a surface of a second cell adjacent to the first cell in a serpentine pattern of at least two passes on each cell. The solar cell array also comprises a plurality of secondary grid lines disposed on front surfaces of each cell and welded with the at least two passes.

Abstract translation: 太阳能电池阵列包括多个太阳能电池和设置在相邻太阳能电池上的金属线。 金属线以每个电池上至少两遍的蛇形图案在第一电池的表面和邻近第一电池的第二电池的表面之间延伸。 太阳能电池阵列还包括多个次级栅极线，其设置在每个电池的前表面上并与至少两个通道焊接。

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.

公开(公告)号：US20160126373A1

公开(公告)日：2016-05-05

申请号：US14738637

申请日：2015-06-12

Applicant: BYD COMPANY LIMITED

Inventor： Zhiqiang ZHAO ,  Weihua TAN ,  Feiyun LI ,  Zhanfeng JIANG ,  Long HE

IPC: H01L31/0224 ,  H01L31/05 ,  H01L31/18 ,  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, comprising an upper cover plate, a front adhesive layer, a cell, a back adhesive layer and a back plate superposed in sequence, a secondary grid line being disposed on the cell, a conductive wire comprising a metal wire being disposed between the front adhesive layer and a front surface of the cell, a welding layer disposed on a welding position where the conductive wire and the secondary grid line are welded, the welding layer being an alloy containing Sn, Bi and at least one of Cu, In, Ag, Sb, Pb and Zn, in which an amount of Bi is 15 to 60 weight percent.

Abstract translation: 一种太阳能电池模块，包括上盖板，前粘合剂层，电池单元，背粘合剂层和依次叠加的背板，辅格栅线设置在单元上，导线包括金属线， 在所述前粘合剂层和所述电池的前表面之间，焊接层设置在所述导线和所述二次栅格线的焊接位置，所述焊接层为包含Sn，Bi的至少一种，Cu， In，Ag，Sb，Pb和Zn，其中Bi的含量为15〜60重量％。