公开(公告)号：US10686167B2

公开(公告)日：2020-06-16

申请号：US15215621

申请日：2016-07-21

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Junya Goto ,  Ai Nakagawa ,  Yuika Sato

IPC: H01M2/02 ,  H01G11/80 ,  H01G11/78 ,  H01G11/82 ,  H01M10/42 ,  H01M10/0525

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：US09865871B2

公开(公告)日：2018-01-09

申请号：US14972796

申请日：2015-12-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroyuki Miyake ,  Nobuhiro Inoue ,  Takuya Hirohashi ,  Yuika Sato

IPC: H01M4/48 ,  C01B33/113 ,  H01M10/0525 ,  H01M4/131

CPC classification number: H01M4/483 ,  C01B33/113 ,  H01M4/131 ,  H01M10/0525 ,  Y02E60/122

Abstract: Silicon oxide which is an oxide containing at least silicon, in which part of silicon is replaced by boron, aluminum, or gallium, is provided.

公开(公告)号：US11380951B2

公开(公告)日：2022-07-05

申请号：US16890049

申请日：2020-06-02

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Junya Goto ,  Ai Nakagawa ,  Yuika Sato

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

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：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：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.