公开(公告)号：US20230246154A1

公开(公告)日：2023-08-03

申请号：US18131449

申请日：2023-04-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masaaki HIROKI ,  Ryota TAJIMA

IPC: H01M4/02 ,  H01M4/04 ,  H01M4/139

CPC classification number: H01M4/02 ,  H01M4/0404 ,  H01M4/139 ,  H01M2004/021 ,  H01M2220/30

Abstract: Part of an electrode, specifically a current collector and an active material layer, for a secondary battery is subjected to cutting processing to have a complex shape. For example, a stack of the first current collector and the first active material layer has a first slit and a second slit. Each of the first slit and the second slit passing across the first current collector and the first active material layer and extending from an edge of the first current collector. Another stack of the second current collector and the second active material layer has a third slit and a fourth slit. Each of the third slit and the fourth slit passing across the second current collector and the second active material layer and extending from an edge of the second current collector.

公开(公告)号：US20230036766A1

公开(公告)日：2023-02-02

申请号：US17961806

申请日：2022-10-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masaaki HIROKI ,  Akio ENDO

IPC: H01L51/00 ,  G09F9/30 ,  G09G3/3266 ,  H01L51/52

Abstract: A highly portable and highly browsable light-emitting device is provided. A light-emitting device that is less likely to be broken is provided. The light-emitting device has a strip-like region having high flexibility and a strip-like region having low flexibility that are arranged alternately. In the region having high flexibility, a light-emitting panel and a plurality of spacers overlap with each other. In the region having low flexibility, the light-emitting panel and a support overlap with each other. When the region having high flexibility is bent, the angle between normals of facing planes of the two adjacent spacers changes according to the bending of the light-emitting panel; thus, a neutral plane can be formed in the light-emitting panel or in the vicinity of the light-emitting panel.

公开(公告)号：US20220109178A1

公开(公告)日：2022-04-07

申请号：US17511170

申请日：2021-10-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masaaki HIROKI ,  Daisuke FURUMATSU

IPC: H01M10/04 ,  H01M50/40 ,  H01M50/116 ,  H01M50/54 ,  H01M50/463 ,  H01M50/46 ,  H01M50/557 ,  H01M4/70

Abstract: To provide a secondary battery that is suitable to a portable information terminal or a wearable device. To provide an electronic device having a novel structure that can have various forms and a secondary battery that fits the forms of the electronic device. The secondary battery includes a film provided with depressions or projections that can ease stress on the film due to application of external force. The sizes of the depressions or projections are different between a center portion and an end portion of the film. The end portion of the film is sealed with an adhesive layer. The depressions or projections of the film are formed by pressing such as embossing.

公开(公告)号：US20210408593A1

公开(公告)日：2021-12-30

申请号：US17468766

申请日：2021-09-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yumiko YONEDA ,  Masaki YAMAKAJI ,  Ryota TAJIMA ,  Masaaki HIROKI

IPC: H01M10/0565 ,  H01M4/02 ,  H01M4/13 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0585

Abstract: A gel electrolyte and a separator are provided between the positive electrode current collector and the negative electrode current collector. The plurality of positive electrode current collectors and the plurality of negative electrode current collectors are stacked such that surfaces of negative electrodes with which active material layers are not coated or surfaces of positive electrodes with which active material layers are not coated are in contact with each other.

公开(公告)号：US20210295749A1

公开(公告)日：2021-09-23

申请号：US17341485

申请日：2021-06-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masaaki HIROKI ,  Akio ENDO

IPC: G09F9/30 ,  G09G3/3266 ,  H01L51/52

Abstract: A highly portable and highly browsable light-emitting device is provided. A light-emitting device that is less likely to be broken is provided. The light-emitting device has a strip-like region having high flexibility and a strip-like region having low flexibility that are arranged alternately. In the region having high flexibility, a light-emitting panel and a plurality of spacers overlap with each other. In the region having low flexibility, the light-emitting panel and a support overlap with each other. When the region having high flexibility is bent, the angle between normals of facing planes of the two adjacent spacers changes according to the bending of the light-emitting panel; thus, a neutral plane can be formed in the light-emitting panel or in the vicinity of the light-emitting panel.

公开(公告)号：US20210280807A1

公开(公告)日：2021-09-09

申请号：US17319260

申请日：2021-05-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masaaki HIROKI ,  Akio ENDO

IPC: H01L51/00

Abstract: A highly portable and highly browsable light-emitting device is provided. A light-emitting device that is less likely to be broken is provided. The light-emitting device has a strip-like region having high flexibility and a strip-like region having low flexibility that are arranged alternately. In the region having high flexibility, a light-emitting panel and a plurality of spacers overlap with each other. In the region having low flexibility, the light-emitting panel and a support overlap with each other. When the region having high flexibility is bent, the angle between normals of facing planes of the two adjacent spacers changes according to the bending of the light-emitting panel; thus, a neutral plane can be formed in the light-emitting panel or in the vicinity of the light-emitting panel.

公开(公告)号：US20190138060A1

公开(公告)日：2019-05-09

申请号：US16238587

申请日：2019-01-03

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masaaki HIROKI

IPC: G06F1/16

Abstract: A sturdy electronic device is provided. A reliable electronic device is provided. A novel electronic device is provided. An electronic device includes a first board, a second board, a display portion having flexibility, and a power storage device having flexibility. The first board and the second board face each other. The display portion and the power storage device are provided between the first board and the second board. The display portion includes a first surface facing the power storage device. The first surface includes a first region not fixed to the power storage device. The first region overlaps with a display region of the display portion.

公开(公告)号：US20180277912A1

公开(公告)日：2018-09-27

申请号：US15984452

申请日：2018-05-21

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru TAKAHASHI ,  Shunpei YAMAZAKI ,  Masaaki HIROKI ,  Kei TAKAHASHI ,  Junpei MOMO

IPC: H01M10/6571 ,  H01M10/44 ,  H01M10/615 ,  H02J7/35 ,  H02J7/00 ,  H01M10/48 ,  H01M10/46 ,  H02S10/20 ,  H01M10/0525 ,  H01M10/637 ,  H01M10/63 ,  H01M10/052

Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit in a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the to of the power storage device; and a control circuit configured to in charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.

公开(公告)号：US20180226629A1

公开(公告)日：2018-08-09

申请号：US15944023

申请日：2018-04-03

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masaaki HIROKI ,  Ryota TAJIMA

IPC: H01M4/02 ,  H01M4/139 ,  H01M4/04

CPC classification number: H01M4/02 ,  H01M4/0404 ,  H01M4/139 ,  H01M2004/021 ,  H01M2220/30

Abstract: Part of an electrode, specifically a current collector and an active material layer, for a secondary battery is subjected to cutting processing to have a complex shape. For example, a stack of the first current collector and the first active material layer has a first slit and a second slit. The first slit extends from a first edge of the stack. The second slit extends from a second edge of the stack, is the slit closest to an electrode tab, and is not parallel or vertical to the longest edge of the current collector.

公开(公告)号：US20180130967A1

公开(公告)日：2018-05-10

申请号：US15807670

申请日：2017-11-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masaaki HIROKI ,  Akio ENDO

IPC: H01L51/00

CPC classification number: H01L51/0097 ,  H01L2251/5338 ,  Y02E10/549

Abstract: A highly portable and highly browsable light-emitting device is provided. A light-emitting device that is less likely to be broken is provided. The light-emitting device has a strip-like region having high flexibility and a strip-like region having low flexibility that are arranged alternately. In the region having high flexibility, a light-emitting panel and a plurality of spacers overlap with each other. In the region having low flexibility, the light-emitting panel and a support overlap with each other. When the region having high flexibility is bent, the angle between normals of facing planes of the two adjacent spacers changes according to the bending of the light-emitting panel; thus, a neutral plane can be formed in the light-emitting panel or in the vicinity of the light-emitting panel.