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：US20160126372A1

公开(公告)日：2016-05-05

申请号：US14738322

申请日：2015-06-12

Applicant: BYD COMPANY LIMITED

Inventor： Zhiqiang ZHAO ,  Meiling TENG ,  Nan WANG ,  Zhanfeng JIANG ,  Long HE

IPC: H01L31/0224 ,  H01L31/048 ,  H01L31/18 ,  H01L31/05

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 cells. Each cell has a front surface on which light is incident when the cell is in operation and a back surface opposite to the front surface. The solar cell array also comprises a plurality of conductive wires. Adjacent cells are connected by the plurality of conductive wires. The solar cell array further comprises secondary grid lines disposed on the front surface of the respective cell. The secondary grid lines comprise middle secondary grid lines disposed in the middle of the respective cell and intersecting with the conductive wires, and edge secondary grid lines disposed on the edges of the respective cell and non-intersecting with the conductive wires. The solar cell array also comprises short grid lines disposed on the front surface of the cell. The short grid lines connect the edge secondary grid lines with the conductive wires or with at least one middle secondary grid line.

Abstract translation: 太阳能电池阵列包括多个电池。 每个电池单元具有在电池工作时光入射的前表面和与前表面相对的后表面。 太阳能电池阵列还包括多根导电线。 相邻的电池通过多根导线连接。 太阳能电池阵列还包括设置在相应电池的前表面上的次级栅格线。 次级栅格线包括设置在相应单元的中间并与导线相交的中间二次栅格线，以及设置在相应单元的边缘上且与导电线不相交的边缘二次栅格线。 太阳能电池阵列还包括设置在电池前表面上的短栅格线。 短栅格线将边缘辅助栅格线与导线或至少一个中间次级栅格线连接。