公开(公告)号：US10998456B2

公开(公告)日：2021-05-04

申请号：US16731434

申请日：2019-12-31

申请人： KANEKA CORPORATION

发明人： Kunta Yoshikawa ,  Daisuke Adachi ,  Toru Terashita ,  Masafumi Hiraishi

IPC分类号： H01L31/0216 ,  H01L31/0747 ,  H01L31/0224 ,  H01L31/054

摘要： The solar cell includes a plurality of light-receiving-side finger electrodes on a light-receiving surface of a photoelectric conversion section having a semiconductor junction. The light-receiving surface of the photoelectric conversion section is covered with a first insulating layer. Each light-receiving-side finger electrodes include: a first metal seed layer provided between the photoelectric conversion section and the first insulating layer; and a first plating metal layer being conduction with the first metal seed layer through openings formed in the first insulating layer. The solar cell includes an isolated plating metal layer pieces contacting neither the light-receiving-side finger electrodes nor the back-side finger electrodes. On the surface of the first insulating layer, an isolated plating metal crowded region is present in a form of a band-shape extending parallel to an extending direction of the light-receiving-side finger electrodes.

公开(公告)号：US20200035847A1

公开(公告)日：2020-01-30

申请号：US16587454

申请日：2019-09-30

申请人： KANEKA CORPORATION

发明人： Toru Terashita ,  Daisuke Adachi ,  Takashi Suezaki ,  Hitoshi Tamai

IPC分类号： H01L31/05 ,  H01L31/049

摘要： A solar cell module includes a solar cell string in which a first solar cell and a second solar cell are arranged apart from each other along a first direction. The first and second solar cells are connected by a strip-shaped wiring member, and the solar cell string is arranged between a light-receiving-surface protection member and a back-surface protection member. The wiring member has, along the first direction, an uneven region where the first principal surface is provided with unevenness, and a flat region where the first principal surface is not provided with unevenness or is provided with unevenness that is smaller in height than the uneven region. The uneven region extends from the light-receiving surface of the second solar cell to the back surface of the first solar cell.

公开(公告)号：US20200028003A1

公开(公告)日：2020-01-23

申请号：US16585038

申请日：2019-09-27

申请人： KANEKA CORPORATION

发明人： Toshihiko Uto ,  Daisuke Adachi

IPC分类号： H01L31/0236 ,  H01L31/0747 ,  H01L31/20

摘要： A solar cell includes a crystal substrate which has a major surface on a light reception side provided with a first texture surface and a major surface on a non-light reception side provided with a second texture surface. The second texture surface occupies 20% or more of the area of the major surface on the non-light reception side.

公开(公告)号：US10522704B2

公开(公告)日：2019-12-31

申请号：US15550047

申请日：2016-02-12

申请人： KANEKA CORPORATION

发明人： Daisuke Adachi ,  Toru Terashita

IPC分类号： H01L31/0747 ,  H01L31/0224 ,  H01L31/20 ,  H01L31/0376 ,  H01L31/18 ,  H01L31/0745 ,  H01L31/0216 ,  H01L31/0236

摘要： The solar cell includes a collecting electrode on a first principal surface of a photoelectric conversion section. The collecting electrode comprises a first electroconductive layer and a second electroconductive layer in this order from the photoelectric conversion section side. An insulating layer is provided on the first principal surface of the photoelectric conversion section so as to cover substantially the entire surface of the region where the first electroconductive layer is not provided and a part of the first electroconductive layer. The insulating layer on the first electroconductive layer has an opening, and the second electroconductive layer is a plating layer that is in conduction with the first electroconductive layer through the opening section of the insulating layer. The first electroconductive layer contains a metal particle component and an insulating material. The metal particle component of the first electroconductive layer includes primary particles and secondary particles. It is preferable that in a cross-section of the first electroconductive layer, the area ratio of the secondary particles to the total of the primary particles and the secondary particles and the coefficient of variation of the particle size are respectively within specific ranges.

公开(公告)号：US20190051777A1

公开(公告)日：2019-02-14

申请号：US16160112

申请日：2018-10-15

申请人： KANEKA CORPORATION

发明人： Daisuke Adachi

IPC分类号： H01L31/046 ,  H01L31/0368 ,  H01L31/049 ,  H01L31/0224 ,  H01L31/18

摘要： A crystalline silicon-based solar cell includes a crystalline silicon substrate having a first principal surface, a second principal surface, and a lateral surface. On the first principal surface is arranged, in the following order, a first intrinsic silicon-based thin-film, a first conductive silicon-based thin-film, a light-receiving-side transparent electrode layer and a light-receiving-side metal electrode. On the second principal surface is arranged, in the following order, a second intrinsic silicon-based thin-film, a second conductive silicon-based thin-film, a back-side transparent electrode layer and a back-side metal electrode. The second conductive silicon-based thin-film has a conductivity-type different from that of the first conductive silicon-based thin-film. Both the first principal surface and the second principal surface are textured. Both the light-receiving-side metal electrode and the back-side metal electrode have a pattern shape. The back-side transparent electrode layer is not provided on a peripheral edge of the second principal surface.

公开(公告)号：US09780235B2

公开(公告)日：2017-10-03

申请号：US14893492

申请日：2014-05-29

申请人： KANEKA CORPORATION

发明人： Daisuke Adachi

IPC分类号： H01L31/0216 ,  H01L31/0224 ,  H01L31/0747 ,  H01L31/20

CPC分类号： H01L31/02168 ,  H01L31/022425 ,  H01L31/022466 ,  H01L31/0747 ,  H01L31/202 ,  H01L31/208 ,  Y02E10/50

摘要： A solar cell of the present invention includes a collecting electrode extending in one direction on a first principal surface of a photoelectric conversion section. The collecting electrode includes first and second electroconductive layers in this order from the photoelectric conversion section side, and further includes an insulating layer provided with openings between the electroconductive layers. The first electroconductive layer is covered with the insulating layer, and the second electroconductive layer is partially in conduction with the first electroconductive layer through the openings of the insulating layer. The first electroconductive layer has non-central portions within a range from both ends of the first electroconductive layer, and a central portion between the two non-central portions, in a direction orthogonal to an extending direction of the first electroconductive layer. A density of openings at the central portion is higher than a density of openings at the non-central portion.

公开(公告)号：US20170200839A1

公开(公告)日：2017-07-13

申请号：US15473000

申请日：2017-03-29

申请人： Kaneka Corporation

发明人： Kunihiro Nakano ,  Kunta Yoshikawa ,  Daisuke Adachi

IPC分类号： H01L31/0224 ,  H01L31/0236 ,  H01L31/18

CPC分类号： H01L31/022466 ,  C23C14/042 ,  C23C16/042 ,  C23C16/24 ,  H01L31/0224 ,  H01L31/022425 ,  H01L31/02366 ,  H01L31/0747 ,  H01L31/1804 ,  H01L31/1884

摘要： A solar cell is provided with an electrode layer on a photovoltaic conversion section including a crystalline silicon substrate. Deposition of the electrode layer is performed by a deposit-up method with a substrate being mounted in such a manner that an opening edge portion of a mask plate having an opening is in contact with the substrate. The opening edge portion of the mask plate has a tapered surface at a part that is in contact with first principal surface of the substrate, the tapered surface conforming to a deflection angle at a peripheral end of the substrate. A solar cell having a large effective area can be prepared by suppressing deposition of electrode layer on mask-covered region due to penetration.

公开(公告)号：US09634176B2

公开(公告)日：2017-04-25

申请号：US14893716

申请日：2014-04-01

申请人： KANEKA CORPORATION

发明人： Daisuke Adachi ,  Masanori Kanematsu ,  Hisashi Uzu

IPC分类号： H01L31/18 ,  H01L31/0747 ,  H01L31/0216 ,  H01L31/0224 ,  H01L31/0445 ,  H01L31/048

CPC分类号： H01L31/1804 ,  H01L31/02168 ,  H01L31/022425 ,  H01L31/022466 ,  H01L31/0445 ,  H01L31/048 ,  H01L31/0747 ,  H01L31/186 ,  H01L31/1884 ,  Y02E10/547 ,  Y02P70/521

摘要： A method for manufacturing a crystalline silicon-based solar cell having a photoelectric conversion section includes a silicon-based layer of an opposite conductivity-type on a first principal surface side of a crystalline silicon substrate of a first conductivity-type, and a collecting electrode formed by an electroplating method on a first principal surface of the photoelectric conversion section. By applying laser light from a first or second principal surface side of the photoelectric conversion section, an insulation-processed region his formed where a short-circuit between the first principal surface and a second principal surface of the photoelectric conversion section is eliminated. On the collecting electrode and/or the insulation-processed region, a protecting layer s formed for preventing diffusion of a metal contained in the collecting electrode into the substrate. After the protecting layer is formed, the insulation-processed region is heated to eliminate leakage between the substrate and the silicon-based layer.

公开(公告)号：US09553228B2

公开(公告)日：2017-01-24

申请号：US14891636

申请日：2014-05-17

申请人： KANEKA CORPORATION

发明人： Masashi Hino ,  Daisuke Adachi

IPC分类号： H01L31/00 ,  H01L21/00 ,  H01L31/074 ,  H01L31/0224 ,  H01L31/0747 ,  H01L31/18

CPC分类号： H01L31/074 ,  H01L31/022425 ,  H01L31/022466 ,  H01L31/0747 ,  H01L31/1884 ,  Y02E10/50

摘要： A solar cell of the invention includes a collecting electrode on a first principal surface of a photoelectric conversion section. The collecting electrode includes a first electroconductive layer and a second electroconductive layer in this order from the photoelectric conversion section. On the first principal surface of the photoelectric conversion section, an insulating layer is provided in a first electroconductive layer-non-formed region where the first electroconductive layer is not formed. The insulating layer includes a first insulating layer is in contact with the first electroconductive layer on the first principal surface of the photoelectric conversion section, and a second insulating layer that is formed so as to cover at least a part of the first insulating layer.

摘要翻译： 本发明的太阳能电池在光电转换部的第一主面上具有集电极。 收集电极从光电转换部分依次包括第一导电层和第二导电层。 在光电转换部的第一主表面上，在没有形成第一导电层的第一导电层非形成区域中设置绝缘层。 绝缘层包括与光电转换部的第一主表面上的第一导电层接触的第一绝缘层和形成为覆盖第一绝缘层的至少一部分的第二绝缘层。

公开(公告)号：US09484485B2

公开(公告)日：2016-11-01

申请号：US14893494

申请日：2014-05-27

申请人： KANEKA CORPORATION

发明人： Daisuke Adachi ,  Hisashi Uzu

IPC分类号： H01L21/00 ,  H01L31/18 ,  H01L31/0747 ,  H01L31/0216 ,  H01L31/0224 ,  H01L31/048

CPC分类号： H01L31/1884 ,  H01L31/02168 ,  H01L31/022425 ,  H01L31/022466 ,  H01L31/048 ,  H01L31/0747 ,  H01L31/1804 ,  Y02E10/547 ,  Y02P70/521

摘要： Provided is a solar cell including a photoelectric conversion section having a first principal surface and a second principal surface, and a collecting electrode formed on the first principal surface of photoelectric conversion section. The photoelectric conversion section includes a semiconductor-stacked portion including a semiconductor junction, a first electrode layer which is a transparent electrode layer formed on the first principal surface side of the semiconductor-stacked portion, and a second electrode layer formed on the second principal surface side of the semiconductor-stacked portion. The collecting electrode includes a first electroconductive layer and a second electroconductive layer. In the manufacturing method, an insulating layer is formed on the first electrode layer, and the electrode layer exposed to the surface of the insulating layer-non-formed region is removed to eliminate a short circuit between the first and second electrode layers. The second electroconductive layer is formed by plating.

摘要翻译： 提供一种太阳能电池，其包括具有第一主表面和第二主表面的光电转换部分，以及形成在光电转换部分的第一主表面上的集电极。 光电转换部包括半导体层叠部，其包含半导体结，形成在半导体层叠部的第一主面侧的透明电极层的第一电极层和形成在第二主面上的第二电极层 侧的半导体层叠部。 集电极包括第一导电层和第二导电层。 在制造方法中，在第一电极层上形成绝缘层，并且去除暴露于绝缘层未形成区域的表面的电极层，以消除第一和第二电极层之间的短路。 第二导电层通过电镀形成。