公开(公告)号：US11158748B2

公开(公告)日：2021-10-26

申请号：US16585038

申请日：2019-09-27

Applicant: KANEKA CORPORATION

Inventor： Toshihiko Uto ,  Daisuke Adachi

IPC: H01L31/0236 ,  H01L31/0747 ,  H01L31/0224 ,  H01L31/20

Abstract: 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：US20190006544A1

公开(公告)日：2019-01-03

申请号：US16126682

申请日：2018-09-10

Applicant: KANEKA CORPORATION

Inventor： Toru Terashita ,  Gensuke Koizumi ,  Daisuke Adachi

IPC: H01L31/049 ,  H01L31/0465 ,  H01L31/054 ,  H01L31/02 ,  H01L31/0224

Abstract: A solar cell module includes a solar cell string comprising a plurality of solar cells, a light-receiving-surface protective member disposed on a light receiving surface side of the solar cell string, a back-surface protective member disposed on a back surface side of the solar cell string, and a plurality of metal films. Each of the solar cells includes a photoelectric conversion part, a patterned light-receiving-surface metal electrode provided on a light receiving surface of the photoelectric conversion part, and a patterned back-surface metal electrode provided on a back surface of the photoelectric conversion part. Each of the metal films is provided between the photoelectric conversion part of the solar cell and the back-surface protective member, forming a cell exposed region on a peripheral edge of a back surface of the solar cell.

公开(公告)号：US10008622B2

公开(公告)日：2018-06-26

申请号：US15561876

申请日：2016-03-10

Applicant: KANEKA CORPORATION

Inventor： Gensuke Koizumi ,  Daisuke Adachi ,  Kunihiro Nakano

IPC: H01L31/00 ,  H01L31/05 ,  H01L31/0747 ,  H01L31/0216 ,  H01L31/18 ,  H01L31/0224

CPC classification number: H01L31/0504 ,  H01L31/02008 ,  H01L31/02167 ,  H01L31/0224 ,  H01L31/022425 ,  H01L31/022433 ,  H01L31/022441 ,  H01L31/02245 ,  H01L31/022466 ,  H01L31/022475 ,  H01L31/04 ,  H01L31/05 ,  H01L31/0508 ,  H01L31/0516 ,  H01L31/0747 ,  H01L31/1884 ,  Y02E10/50 ,  Y02P70/521

Abstract: The solar cell includes: a first metal seed layer and a first plating layer provided on a first surface of a photoelectric conversion section; a second metal seed layer provided on a second surface of the photoelectric conversion section; and a third metal seed layer and a third plating layer provided on the lateral surface and the peripheral edge of the second surface of the photoelectric conversion section. The first metal seed layer is in electrical continuity with the third metal seed layer, while the second metal seed layer is in electrical non-continuity with the third metal seed layer. By supplying electricity to at least one of the first metal seed layer and the third metal seed layer, the first plating layer and the third plating layer are formed simultaneously.

公开(公告)号：US09722101B2

公开(公告)日：2017-08-01

申请号：US14346261

申请日：2012-12-21

Applicant: KANEKA CORPORATION

Inventor： Daisuke Adachi ,  Kenji Yamamoto

IPC: H01L31/0224 ,  H01L31/0747 ,  H01L31/18

CPC classification number: H01L31/022425 ,  H01L31/022433 ,  H01L31/022466 ,  H01L31/022475 ,  H01L31/0747 ,  H01L31/1804 ,  H01L31/1884 ,  Y02E10/547 ,  Y02P70/521

Abstract: A solar cell includes a photoelectric conversion section having first and second principal surfaces, and a collecting electrode formed on the first principal surface. The collecting electrode includes first and second electroconductive layers in this order from the photoelectric conversion section side, and includes an insulating layer between the first and second electroconductive layers. The insulating layer is provided with an opening, and the first and second electroconductive layers are in conduction with each other via the opening provided in the insulating layer. The solar cell has, on the first principal surface, the second principal surface or a side surface of the photoelectric conversion section, an insulating region freed of a short circuit of front and back sides of the photoelectric conversion section, and the surface of the insulating region is at least partially covered with the insulating layer.

公开(公告)号：US09680037B2

公开(公告)日：2017-06-13

申请号：US14654453

申请日：2013-10-25

Applicant: KANEKA CORPORATION

Inventor： Toshihiko Uto ,  Daisuke Adachi

IPC: H01L31/0224 ,  H01L31/0465 ,  H01L31/0747 ,  H01L31/18 ,  H01L31/20

CPC classification number: H01L31/022433 ,  H01L31/022425 ,  H01L31/022466 ,  H01L31/0465 ,  H01L31/0747 ,  H01L31/1864 ,  H01L31/1884 ,  H01L31/202 ,  Y02E10/50

Abstract: A solar cell of the present invention includes a collecting electrode on one main 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 an insulating layer between the first and second electroconductive layers, the insulating layer having an opening section formed therein. The first electroconductive layer is covered with the insulating layer, contains a low-melting-point material, and is conductively connected with a part of the second electroconductive layer via the opening section. The surface roughness of the second electroconductive layer is preferably 1.0 μm to 10.0 μm. The second electroconductive layer is preferably formed by a plating method. In order to conductively connect the first and second electroconductive layers, annealing of the first electroconductive layer by heating is preferably performed prior to forming the second electroconductive layer.

公开(公告)号：US20170155007A1

公开(公告)日：2017-06-01

申请号：US15127390

申请日：2015-03-26

Applicant: KANEKA CORPORATION

Inventor： Toru Terashita ,  Daisuke Adachi

IPC: H01L31/05 ,  H01L31/0747 ,  H01L31/0224

CPC classification number: H01L31/0512 ,  H01L31/022425 ,  H01L31/0747 ,  Y02E10/50

Abstract: This solar cell module includes a solar cell and a wiring member. The solar cell includes a collecting electrode on a light-receiving side of a photoelectric conversion section, and a back electrode on a back side of the photoelectric conversion section. Sequentially from the photoelectric conversion section side, the collecting electrode includes a first collecting electrode and a second collecting electrode, and the back electrode comprises a first back electrode and a second back electrode. It is preferable that the surface roughness Ra1 of the first collecting electrode and the surface roughness Ra2 of the second collecting electrode satisfy Ra1≧Ra2 and Ra2=1.0 to 10.0 μm. It is also preferable that the outermost layer of the second collecting electrode and the outermost layer of the second back electrode are mainly composed of the same electroconductive material.

公开(公告)号：US20150372169A1

公开(公告)日：2015-12-24

申请号：US14654453

申请日：2013-10-25

Applicant: KANEKA CORPORATION

Inventor： Toshihiko Uto ,  Daisuke Adachi

IPC: H01L31/0224 ,  H01L31/0465 ,  H01L31/0747 ,  H01L31/20 ,  H01L31/18

CPC classification number: H01L31/022433 ,  H01L31/022425 ,  H01L31/022466 ,  H01L31/0465 ,  H01L31/0747 ,  H01L31/1864 ,  H01L31/1884 ,  H01L31/202 ,  Y02E10/50

Abstract: A solar cell of the present invention includes a collecting electrode on one main 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 an insulating layer between the first and second electroconductive layers, the insulating layer having an opening section formed therein. The first electroconductive layer is covered with the insulating layer, contains a low-melting-point material, and is conductively connected with a part of the second electroconductive layer via the opening section. The surface roughness of the second electroconductive layer is preferably 1.0 μm to 10.0 μm. The second electroconductive layer is preferably formed by a plating method. In order to conductively connect the first and second electroconductive layers, annealing of the first electroconductive layer by heating is preferably performed prior to forming the second electroconductive layer.

Abstract translation: 本发明的太阳能电池在光电转换部的一个主面上具有集电极。 收集电极从光电转换部分侧依次包括第一和第二导电层，以及在第一和第二导电层之间的绝缘层，其中形成有开口部分的绝缘层。 第一导电层被绝缘层覆盖，包含低熔点材料，并且经由开口部分与第二导电层的一部分导电连接。 第二导电层的表面粗糙度优选为1.0μm〜10.0μm。 第二导电层优选通过电镀法形成。 为了导电地连接第一和第二导电层，优选在形成第二导电层之前进行第一导电层的加热退火。

公开(公告)号：US20150171241A1

公开(公告)日：2015-06-18

申请号：US14403392

申请日：2013-11-25

Applicant: KANEKA CORPORATION

Inventor： Nick Valckx ,  Masanori Kanematsu ,  Jose Luis Hernandez ,  Daisuke Adachi ,  Kunta Yoshikawa

IPC: H01L31/0224 ,  H01L31/0392

CPC classification number: H01L31/022466 ,  H01L31/02167 ,  H01L31/022425 ,  H01L31/03921 ,  H01L31/0747 ,  H01L31/1884 ,  H01L51/445 ,  Y02E10/542 ,  Y02E10/549 ,  Y02P70/521

Abstract: In a solar cell, a collecting electrode is provided on a transparent electrode of a photoelectric conversion section having the transparent electrode on the outermost surface on one main surface side. The collecting electrode includes a first electroconductive layer and a second electroconductive layer in this order from the photoelectric conversion section side. Preferably, a self-assembled monolayer is formed on a region on the transparent electrode layer, which is not provided with the first electroconductive layer. A method for manufacturing the solar cell includes: forming a first electroconductive layer on a transparent electrode layer; forming a self-assembled monolayer on a region on the transparent electrode layer, which is not provided with the first electroconductive layer; and bringing the first electroconductive layer and a plating solution into contact with each other to form the second electroconductive layer by a plating method, in this order.

Abstract translation: 在太阳能电池中，在一个主表面侧的最表面上具有透明电极的光电转换部的透明电极上设置集电极。 收集电极从光电转换部分侧依次包括第一导电层和第二导电层。 优选地，在未设置有第一导电层的透明电极层上的区域上形成自组装单层。 一种制造太阳能电池的方法包括：在透明电极层上形成第一导电层; 在不具有第一导电层的透明电极层的区域上形成自组装单层; 并且使第一导电层和电镀液彼此接触，通过电镀法依次形成第二导电层。

公开(公告)号：US11024760B2

公开(公告)日：2021-06-01

申请号：US16234826

申请日：2018-12-28

Applicant: KANEKA CORPORATION

Inventor： Daisuke Adachi

IPC: H01L31/0352 ,  H01L31/0747 ,  H01L31/0236 ,  H01L31/0224 ,  H01L31/18 ,  H01L31/20

Abstract: A crystalline silicon-based solar cell includes, in the following order, a crystalline silicon substrate having a first principal surface, a non-single-crystalline silicon-based thin-film, and a transparent electroconductive layer. The non-single-crystalline silicon-based thin-film and the transparent electroconductive layer are disposed on the first principal surface. The non-single-crystalline silicon-based thin-film comprises, in the following order from the first principal surface, an intrinsic silicon-based thin-film and a conductive silicon-based thin-film. The first principal surface has a plurality of pyramidal projections, each having a top portion, a middle portion, and a bottom portion. A thickness of the non-single-crystalline silicon-based thin-film disposed on the top portions is smaller than a thickness of the non-single-crystalline silicon-based thin-film disposed on the middle portions.

公开(公告)号：US20200095370A1

公开(公告)日：2020-03-26

申请号：US16695750

申请日：2019-11-26

Applicant: KANEKA CORPORATION

Inventor： Hitoshi Tamai ,  Masanori Kanematsu ,  Daisuke Adachi

IPC: C08G59/22 ,  C08L83/06 ,  C08K5/00 ,  C08K5/1539 ,  C08K5/3445 ,  C08K5/09 ,  C08K3/013 ,  C08K3/08 ,  H01B1/22

Abstract: A conductive paste composition includes 1 to 10 parts by weight of a binder (A), 2 to 20 parts by weight of an epoxy monomer (B), 1 to 20 parts by weight of a crosslinking agent (C), and 70 to 95 parts by weight of a conductive filler (D). The binder (A) is a reactive oligomer having a siloxane bond as a main skeleton and including a plurality of oxirane rings as an organic group. The epoxy monomer (B) includes an oxirane ring. The total amount of the binder (A), the epoxy monomer (B), the crosslinking agent (C), and the conductive filler (D) is 100 parts by weight.