公开(公告)号：US10367194B2

公开(公告)日：2019-07-30

申请号：US14921126

申请日：2015-10-23

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Junya Goto ,  Mako Motoyoshi ,  Yuika Sato ,  Takahiro Kawakami

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/131 ,  H01M4/133 ,  H01M4/485 ,  H01M4/587 ,  H01M4/134 ,  H01M4/62 ,  H01M4/70 ,  H01M4/02

Abstract: A negative electrode and a secondary battery including the negative electrode are provided. A plurality of projections and depressions are provided in a negative electrode active material layer and a negative electrode current collector. The plurality of projections and depressions in the negative electrode active material layer absorb expansion of the negative electrode active material and suppress deformation thereof. The plurality of projections and depressions in the negative electrode current collector suppress deformation of the negative electrode current collector caused by expansion and contraction of the negative electrode active material.

公开(公告)号：US09640831B2

公开(公告)日：2017-05-02

申请号：US14710005

申请日：2015-05-12

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Ryota Tajima ,  Minoru Takahashi ,  Junya Goto ,  Takuya Miwa

IPC: H01M10/04 ,  H01M2/18 ,  H01M10/058 ,  H01M4/13 ,  H01M10/052 ,  H01M2/26

CPC classification number: H01M2/0275 ,  H01M2/021 ,  H01M2/0277 ,  H01M2/18 ,  H01M2/26 ,  H01M4/13 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/0585 ,  H01M2220/30

Abstract: In the case where a film, which has lower strength than a metal can, is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery that is durable even when force is externally applied thereto is provided. A region that is easily partly bent and a region that is not easily partly bent owing to a protective material provided in the region are intentionally formed to obtain the durable secondary battery.

公开(公告)号：US11742155B2

公开(公告)日：2023-08-29

申请号：US17840658

申请日：2022-06-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Junya Goto ,  Ai Nakagawa ,  Yuika Sato

IPC: H01M50/116 ,  H01G11/78 ,  H01G11/80 ,  H01G11/82 ,  H01M50/119 ,  H01M50/133 ,  H01M10/42 ,  H01M10/0525

CPC classification number: H01G11/78 ,  H01G11/80 ,  H01G11/82 ,  H01M50/119 ,  H01M50/133 ,  H01M10/0525 ,  H01M10/425 ,  H01M2010/4271 ,  Y02E60/13 ,  Y02T10/70

Abstract: A repeatedly bendable power storage device. A highly reliable power storage device. A long-life power storage device. A repeatedly bendable electronic device. A flexible electronic device. The power storage device includes a film, a positive electrode, and a negative electrode. The film includes a plurality of projections. A difference between the maximum height and the minimum height of a surface of the film is greater than or equal to 0.15 mm and less than 0.8 mm. The modulus of rigidity of the film is less than 6.5×109 N. The film includes a metal layer. The thickness of the metal layer is greater than or equal to 5 μm and less than or equal to 200 μm. The positive electrode and the negative electrode are surrounded by the film.

公开(公告)号：US10978696B2

公开(公告)日：2021-04-13

申请号：US16436067

申请日：2019-06-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Junya Goto ,  Mako Motoyoshi ,  Yuika Sato ,  Takahiro Kawakami

IPC: H01M4/36 ,  H01M4/134 ,  H01M4/62 ,  H01M4/70 ,  H01M4/04 ,  H01M4/131 ,  H01M4/133 ,  H01M4/485 ,  H01M4/587 ,  H01M4/02

Abstract: A negative electrode and a secondary battery including the negative electrode are provided. A plurality of projections and depressions are provided in a negative electrode active material layer and a negative electrode current collector. The plurality of projections and depressions in the negative electrode active material layer absorb expansion of the negative electrode active material and suppress deformation thereof. The plurality of projections and depressions in the negative electrode current collector suppress deformation of the negative electrode current collector caused by expansion and contraction of the negative electrode active material.

公开(公告)号：US10535844B2

公开(公告)日：2020-01-14

申请号：US15438960

申请日：2017-02-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Junya Goto ,  Ai Nakagawa ,  Yuika Sato

IPC: H01M2/02 ,  H01M10/42 ,  H01M2/08 ,  H01G11/80 ,  H01M10/0525 ,  H01G11/82 ,  H01M2/10 ,  H01G11/74

Abstract: A repeatedly bendable power storage device is provided. A highly reliable power storage device is provided. A long-life power storage device is provided. A repeatedly bendable electronic device is provided. A flexible electronic device is provided. The power storage device includes a positive electrode, a negative electrode, and an exterior body wrapping the positive electrode and the negative electrode. The exterior body includes a metal layer and a resin layer. The thickness of the metal layer in at least part of an outer edge of the exterior body is smaller than that in a region other than the outer edge. The exterior body has a plurality of slits in the outer edge.

公开(公告)号：US10263224B2

公开(公告)日：2019-04-16

申请号：US15098758

申请日：2016-04-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masayuki Kimura ,  Junya Goto

IPC: H01M2/02 ,  H01M10/04

Abstract: To improve the flexibility of a power storage device, or provide a high-capacity power storage device. The power storage device includes a positive electrode, a negative electrode, an exterior body, and an electrolyte. The outer periphery of each of the positive electrode active material layer and the negative electrode active material layer is a closed curve. The exterior body includes a film and a thermocompression-bonded region. The inner periphery of the thermocompression-bonded region is a closed curve. The electrolyte, the positive electrode active material layer, and the negative electrode active material layer are in a region surrounded by the thermocompression-bonded region.

公开(公告)号：US10134766B2

公开(公告)日：2018-11-20

申请号：US15292544

申请日：2016-10-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masahiko Hayakawa ,  Yuta Moriya ,  Junya Goto ,  Yasuyuki Arai

IPC: H01L27/12 ,  G02F1/1339 ,  G02F1/1345 ,  G02F1/136 ,  G02F1/1362 ,  G09G3/36

Abstract: The number of photolithography steps used for manufacturing a transistor is reduced to less than the conventional one and a highly reliable semiconductor device is provided. The present invention relates to a semiconductor device including a circuit including a transistor having an oxide semiconductor layer over a first substrate and a second substrate fixed to the first substrate with a sealant. A closed space surrounded by the sealant, the first substrate, and the second substrate is in a reduced pressure state or filled with dry air. The sealant surrounds at least the transistor and has a closed pattern shape. Further, the circuit is a driver circuit including a transistor having an oxide semiconductor layer.

公开(公告)号：US10056578B2

公开(公告)日：2018-08-21

申请号：US15492015

申请日：2017-04-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota Tajima ,  Minoru Takahashi ,  Junya Goto ,  Takuya Miwa

IPC: H01M2/00 ,  H01M2/02 ,  H01M10/0525 ,  H01M10/0585

CPC classification number: H01M2/0275 ,  H01M2/021 ,  H01M2/0277 ,  H01M2/18 ,  H01M2/26 ,  H01M4/13 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/0585 ,  H01M2220/30

Abstract: In the case where a film, which has lower strength than a metal can, is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery that is durable even when force is externally applied thereto is provided. A region that is easily partly bent and a region that is not easily partly bent owing to a protective material provided in the region are intentionally formed to obtain the durable secondary battery.

公开(公告)号：US20150147626A1

公开(公告)日：2015-05-28

申请号：US14555644

申请日：2014-11-27

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota TAJIMA ,  Yuugo Goto ,  Yumiko Yoneda ,  Junya Goto ,  Takuya Miwa

IPC: H01M2/16 ,  H05K5/00

CPC classification number: H05K5/0086 ,  H01M2/0277 ,  H01M2/0285 ,  H01M2/0287 ,  H01M2/06 ,  H01M2/1613 ,  H01M2/162 ,  H01M2/1626 ,  H01M2/1653 ,  H01M2/18 ,  H01M2/266 ,  H01M4/58 ,  H01M10/0463 ,  H01M10/052 ,  H01M10/0585 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02E60/13

Abstract: To provide a power storage unit having a structure which is unlikely to break down by change in shape, such as bending. An electrode plate is covered with a sheet of an insulator which is folded in two. The sheet is preferably processed into a bag-like shape or an envelope-like shape by bonding overlapping portions of the sheet in the periphery of the electrode plate. The electrode plate and the sheet are fixed to an exterior body. In the case where the shape of the exterior body is changed by bending or the like, the electrode plate and the sheet can slide together in the exterior body. Thus, stress on the electrode plate due to bending can be relieved.

Abstract translation: 提供一种具有不易因形状变化（例如弯曲）而分解的结构的蓄电单元。 电极板被折叠成两个的绝缘体片覆盖。 优选通过在电极板的周边粘合片材的重叠部分来将片材加工成袋状或包封状。 电极板和片材固定在外部主体上。 在通过弯曲等改变外部主体的形状的情况下，电极板和片材可以在外部主体中一起滑动。 因此，可以减轻由于弯曲引起的电极板上的应力。