公开(公告)号：US08859320B2

公开(公告)日：2014-10-14

申请号：US13809077

申请日：2011-07-12

申请人： Ryo Mitta ,  Mitsuhito Takahashi ,  Hiroshi Hashigami ,  Takashi Murakami ,  Shintarou Tsukigata ,  Takenori Watabe ,  Hiroyuki Otsuka

发明人： Ryo Mitta ,  Mitsuhito Takahashi ,  Hiroshi Hashigami ,  Takashi Murakami ,  Shintarou Tsukigata ,  Takenori Watabe ,  Hiroyuki Otsuka

IPC分类号： H01L21/00 ,  H01L31/0216 ,  H01L31/068 ,  H01L31/0224

CPC分类号： H01L31/02168 ,  H01L31/022425 ,  H01L31/068 ,  Y02E10/52 ,  Y02E10/547

摘要： Disclosed in a method that is for producing a solar cell and that is characterized by performing an annealing step on a semiconductor substrate before an electrode-forming step. By means of performing annealing in the above manner, it is possible to improve the electrical characteristics of the solar cell without negatively impacting reliability or outward appearance. As a result, the method can be widely used in methods for producing solar cells having high reliability and electrical characteristics.

摘要翻译： 本发明涉及用于生产太阳能电池的方法，其特征在于在电极形成步骤之前在半导体衬底上进行退火步骤。 通过以上述方式进行退火，可以提高太阳能电池的电气特性，而不会不利地影响可靠性或外观。 结果，该方法可广泛用于制造具有高可靠性和电特性的太阳能电池的方法。

公开(公告)号：US20130247957A1

公开(公告)日：2013-09-26

申请号：US13991978

申请日：2011-12-01

申请人： Hiroshi Hashigami ,  Takenori Watabe ,  Mitsuhito Takahashi ,  Shintarou Tsukigata ,  Takashi Murakami ,  Ryo Mitta ,  Yoko Endo ,  Hiroyuki Otsuka

发明人： Hiroshi Hashigami ,  Takenori Watabe ,  Mitsuhito Takahashi ,  Shintarou Tsukigata ,  Takashi Murakami ,  Ryo Mitta ,  Yoko Endo ,  Hiroyuki Otsuka

IPC分类号： H01L31/0224

CPC分类号： H01L31/1804 ,  H01L31/02167 ,  H01L31/022425 ,  H01L31/068 ,  H01L31/1868 ,  Y02E10/547 ,  Y02P70/521

摘要： A solar cell has: an emitter layer formed on a light-receiving-surface side of a crystalline silicon substrate, with a dopant of the opposite conductivity type from the silicon substrate added to the emitter layer, a passivation film formed on the surface of the silicon substrate, an extraction electrode and a collector electrode. The extraction electrode extracts photogenerated charge from the silicon substrate and the collector electrode collects the charge collected at the extraction electrode. The extraction electrode contains a first electrode that consists of a sintered conductive paste. The first electrode, at least, is formed so as to pass through the passivation layer. The collection electrode contains a second electrode that has a higher conductivity than the first electrode. This solar cell reduces contact-resistance losses between the silicon and the electrodes, resistance losses due to electrode resistance, and optical and electrical losses in the emitter layer.

摘要翻译： 太阳能电池具有：形成在晶体硅衬底的受光面侧的发射极层，与添加到发射极层的硅衬底具有相反导电类型的掺杂剂，在该表面上形成钝化膜 硅衬底，引出电极和集电极。 提取电极从硅衬底提取光生电荷，并且集电极收集在提取电极处收集的电荷。 提取电极包含由烧结的导电浆料组成的第一电极。 至少第一电极形成为穿过钝化层。 收集电极含有比第一电极具有更高导电性的第二电极。 该太阳能电池降低硅和电极之间的接触电阻损耗，由于电极电阻引起的电阻损耗以及发射极层中的光学和电损耗。

公开(公告)号：US20130171763A1

公开(公告)日：2013-07-04

申请号：US13809077

申请日：2011-07-12

申请人： Ryo Mitta ,  Mitsuhito Takahashi ,  Hiroshi Hashigami ,  Takashi Murakami ,  Shintarou Tsukigata ,  Takenori Watabe ,  Hiroyuki Otsuka

发明人： Ryo Mitta ,  Mitsuhito Takahashi ,  Hiroshi Hashigami ,  Takashi Murakami ,  Shintarou Tsukigata ,  Takenori Watabe ,  Hiroyuki Otsuka

IPC分类号： H01L31/0216

CPC分类号： H01L31/02168 ,  H01L31/022425 ,  H01L31/068 ,  Y02E10/52 ,  Y02E10/547

摘要： Disclosed in a method that is for producing a solar cell and that is characterized by performing an annealing step on a semiconductor substrate before an electrode-forming step. By means of performing annealing in the above manner, it is possible to improve the electrical characteristics of the solar cell without negatively impacting reliability or outward appearance. As a result, the method can be widely used in methods for producing solar cells having high reliability and electrical characteristics.

摘要翻译： 本发明涉及用于生产太阳能电池的方法，其特征在于在电极形成步骤之前在半导体衬底上进行退火步骤。 通过以上述方式进行退火，可以提高太阳能电池的电气特性，而不会不利地影响可靠性或外观。 结果，该方法可广泛用于制造具有高可靠性和电特性的太阳能电池的方法。

公开(公告)号：US20130247974A1

公开(公告)日：2013-09-26

申请号：US13822845

申请日：2011-09-05

申请人： Shun Moriyama ,  Takenori Watabe ,  Takashi Murakami ,  Shintarou Tsukigata ,  Mitsuhito Takahashi ,  Hiroyuki Otsuka

发明人： Shun Moriyama ,  Takenori Watabe ,  Takashi Murakami ,  Shintarou Tsukigata ,  Mitsuhito Takahashi ,  Hiroyuki Otsuka

IPC分类号： H01L31/0236

CPC分类号： H01L31/02363 ,  H01L31/068 ,  Y02E10/547

摘要： Disclosed is a solar cell having a silicon monocrystal substrate surface with a textured structure and, near the surface of said substrate, a damage layer reflecting the slice processing history from the time of manufacture of the silicon monocrystal substrate. The damage layer near the surface of the silicon monocrystal substrate is derived from the slice processing history at the time of manufacture of the substrate and functions as a gettering site, contributing to a longer lifetime of the substrate minority carriers. Thanks to this effect, the solar cell characteristics are dramatically increased. Further, new damage need be inflicted, and no additional work is required because damage from the slicing is used.

摘要翻译： 公开了一种具有纹理结构的硅单晶衬底表面的太阳能电池，并且在所述衬底的表面附近，形成从制造硅单晶衬底时的切片处理历史的反射层的损伤层。 硅单晶衬底表面附近的损伤层源自衬底制造时的切片加工历史，起到吸杂位置的作用，从而有助于衬底少数载流子的寿命更长。 由于这种效果，太阳能电池的特性急剧增加。 此外，需要施加新的损坏，并且不需要额外的工作，因为使用切片的损伤。

公开(公告)号：US09018520B2

公开(公告)日：2015-04-28

申请号：US13822845

申请日：2011-09-05

申请人： Shun Moriyama ,  Takenori Watabe ,  Takashi Murakami ,  Shintarou Tsukigata ,  Mitsuhito Takahashi ,  Hiroyuki Otsuka

发明人： Shun Moriyama ,  Takenori Watabe ,  Takashi Murakami ,  Shintarou Tsukigata ,  Mitsuhito Takahashi ,  Hiroyuki Otsuka

IPC分类号： H01L31/0236 ,  H01L31/068

CPC分类号： H01L31/02363 ,  H01L31/068 ,  Y02E10/547

摘要： Disclosed is a solar cell having a silicon monocrystal substrate surface with a textured structure and, near the surface of said substrate, a damage layer reflecting the slice processing history from the time of manufacture of the silicon monocrystal substrate. The damage layer near the surface of the silicon monocrystal substrate is derived from the slice processing history at the time of manufacture of the substrate and functions as a gettering site, contributing to a longer lifetime of the substrate minority carriers. Thanks to this effect, the solar cell characteristics are dramatically increased. Further, new damage need be inflicted, and no additional work is required because damage from the slicing is used.

摘要翻译： 公开了一种具有纹理结构的硅单晶衬底表面的太阳能电池，并且在所述衬底的表面附近，形成从制造硅单晶衬底时的切片处理历史的反射层的损伤层。 硅单晶衬底表面附近的损伤层源自衬底制造时的切片加工历史，起到吸杂位置的作用，从而有助于衬底少数载流子的寿命更长。 由于这种效果，太阳能电池的特性急剧增加。 此外，需要施加新的损坏，并且不需要额外的工作，因为使用切片的损伤。

公开(公告)号：US20130291743A1

公开(公告)日：2013-11-07

申请号：US13980902

申请日：2012-01-25

申请人： Yoko Endo ,  Ryo Mitta ,  Takenori Watabe ,  Hiroyuki Otsuka

发明人： Yoko Endo ,  Ryo Mitta ,  Takenori Watabe ,  Hiroyuki Otsuka

IPC分类号： B41N1/24

CPC分类号： B41N1/24 ,  B41N1/248 ,  H01L31/022425 ,  H01L31/068 ,  H01L31/1804 ,  Y02E10/547 ,  Y02P70/521

摘要： The present invention relates to screen printing plate for a solar cell in which an electroconductive paste is used to simultaneously print a bus bar electrode and a finger electrode, the screen printing plate characterized in that the opening width of a finger electrode opening of the screen printing plate is less than 80 μm and a bus bar electrode opening of the screen printing plate has a closed section. The use of this screen printing plate makes it possible to reduce the cost of manufacturing solar cells, prevent the connecting section between the bus bar electrode and the finger electrode from breaking without causing an increase in shadow loss or compromising the aesthetic quality of the solar cells, and manufacture highly reliable solar cells with good productivity.

摘要翻译： 本发明涉及一种太阳能电池用丝网印刷板，其中使用导电浆料同时印刷母线电极和指状电极，丝网印刷板的特征在于丝网印刷的手指电极开口的开口宽度 板小于80μm，丝网印刷板的母线电极开口具有封闭部分。 使用该丝网印版能够降低制造太阳能电池的成本，防止汇流条电极与手指电极之间的连接部分破坏而不会引起阴影损失的增加或损害太阳能电池的美观品质 并以高生产率制造高可靠性太阳能电池。

公开(公告)号：US20130284263A1

公开(公告)日：2013-10-31

申请号：US13997341

申请日：2011-12-21

申请人： Ryo Mitta ,  Yoko Endo ,  Takenori Watabe ,  Hiroyuki Otsuka

发明人： Ryo Mitta ,  Yoko Endo ,  Takenori Watabe ,  Hiroyuki Otsuka

IPC分类号： H01L31/18 ,  H01L31/0224

CPC分类号： H01L31/18 ,  B41P2215/50 ,  H01L31/022425 ,  Y02E10/50

摘要： Provided is a method for manufacturing a solar cell element that can increase the film thickness for collector electrodes formed in a screen printing process and reduce the resistance value of the same as well as contribute to improvements in conversion efficiency. When a collector electrode for a solar cell element is formed by screen printing of a conductive paste, that screen-printing process is repeated a plurality of times. At this time, the squeegee speed during the second or later screen printing is faster than the squeegee speed during the first screen printing. The second and later screen printing is superimposed on the collector electrode printed the first time; therefore, the faster the squeegee speed is, the better the plate release is for the paste and foundation. The amount of paste applied increases, and the film for the collector electrode that is formed becomes thicker.

摘要翻译： 本发明提供一种太阳能电池元件的制造方法，该太阳能电池元件能够提高丝网印刷工序中形成的集电极的膜厚，并降低其电阻值，并有助于提高转换效率。 当通过丝网印刷形成用于太阳能电池元件的集电极时，该丝网印刷过程重复多次。 此时，第二次或以后的丝网印刷期间的刮刀速度比第一丝网印刷期间的刮刀速度快。 第二次及以后的丝网印刷第一次叠加在集电极上; 因此，刮刀速度越快，印版释放度越好，粘贴和粉底越好。 施加的糊剂量增加，并且形成的集电极的膜变厚。

公开(公告)号：US10439094B2

公开(公告)日：2019-10-08

申请号：US13997341

申请日：2011-12-21

申请人： Ryo Mitta ,  Yoko Endo ,  Takenori Watabe ,  Hiroyuki Otsuka

发明人： Ryo Mitta ,  Yoko Endo ,  Takenori Watabe ,  Hiroyuki Otsuka

IPC分类号： H01L31/18 ,  H01L31/0224

摘要： Provided is a method for manufacturing a solar cell element that can increase the film thickness for collector electrodes formed in a screen printing process and reduce the resistance value of the same as well as contribute to improvements in conversion efficiency. When a collector electrode for a solar cell element is formed by screen printing of a conductive paste, that screen-printing process is repeated a plurality of times. At this time, the squeegee speed during the second or later screen printing is faster than the squeegee speed during the first screen printing. The second and later screen printing is superimposed on the collector electrode printed the first time; therefore, the faster the squeegee speed is, the better the plate release is for the paste and foundation. The amount of paste applied increases, and the film for the collector electrode that is formed becomes thicker.

公开(公告)号：US09216607B2

公开(公告)日：2015-12-22

申请号：US13980902

申请日：2012-01-25

申请人： Yoko Endo ,  Ryo Mitta ,  Takenori Watabe ,  Hiroyuki Otsuka

发明人： Yoko Endo ,  Ryo Mitta ,  Takenori Watabe ,  Hiroyuki Otsuka

IPC分类号： B41N1/24 ,  H01L31/0224 ,  H01L31/068 ,  H01L31/18

CPC分类号： B41N1/24 ,  B41N1/248 ,  H01L31/022425 ,  H01L31/068 ,  H01L31/1804 ,  Y02E10/547 ,  Y02P70/521

摘要： The present invention relates to screen printing plate for a solar cell in which an electroconductive paste is used to simultaneously print a bus bar electrode and a finger electrode, the screen printing plate characterized in that the opening width of a finger electrode opening of the screen printing plate is less than 80 μm and a bus bar electrode opening of the screen printing plate has a closed section. The use of this screen printing plate makes it possible to reduce the cost of manufacturing solar cells, prevent the connecting section between the bus bar electrode and the finger electrode from breaking without causing an increase in shadow loss or compromising the aesthetic quality of the solar cells, and manufacture highly reliable solar cells with good productivity.

摘要翻译： 本发明涉及一种太阳能电池用丝网印刷板，其中使用导电浆料同时印刷母线电极和指状电极，丝网印刷板的特征在于丝网印刷的手指电极开口的开口宽度 板小于80μm，丝网印版的母线电极开口具有封闭部分。 使用该丝网印版能够降低制造太阳能电池的成本，防止汇流条电极与手指电极之间的连接部分破坏而不会引起阴影损失的增加或损害太阳能电池的美观品质 并以高生产率制造高可靠性太阳能电池。

公开(公告)号：US20130133738A1

公开(公告)日：2013-05-30

申请号：US13703261

申请日：2011-06-03

申请人： Ryo Mitta ,  Takenori Watabe ,  Hiroyuki Otsuka

发明人： Ryo Mitta ,  Takenori Watabe ,  Hiroyuki Otsuka

IPC分类号： H01L31/18 ,  F27B17/00 ,  H01L31/0224

CPC分类号： H01L31/18 ,  F27B9/243 ,  F27B17/00 ,  H01L21/67109 ,  H01L21/6776 ,  H01L31/022425 ,  H01L31/1864 ,  Y02E10/50 ,  Y02P70/521

摘要： Disclosed is a firing furnace for firing an electrode of a solar cell element, which is provided with: a transfer member, which transfers a substrate having a conductive paste applied thereto; a heating section, which heats the substrate and fires the conductive paste; and a cooling section, which cools the heated substrate. The furnace is also provided with a heating means for heating the transfer member. Specifically, at the time of firing the electrode paste using the wire-type firing furnace, since a wire is fired at a temperature substantially equivalent to the ambient temperature of the heating section, deterioration of yield due to having the electrode damaged by a deposited material of the metal component of the conductive paste is suppressed, said deposited material being deposited on the wire, and the wire-type firing furnace can be continuously used.

摘要翻译： 公开了一种用于烧制太阳能电池元件的电极的烧制炉，其设置有：转印部件，其传送施加有导电浆料的基板; 加热部，其加热基板并起动导电糊; 以及冷却被加热的基板的冷却部。 该炉还设置有用于加热转印构件的加热装置。 具体地说，在使用线型烧成炉烧成电极糊时，由于在与加热部的环境温度大致相同的温度下对线进行烧成，所以由于电极被沉积材料破坏而导致的屈服劣化 的导电性糊料的金属成分被抑制，所述沉积材料沉积在线材上，可以连续使用线型烧成炉。