公开(公告)号：US10122010B2

公开(公告)日：2018-11-06

申请号：US14751443

申请日：2015-06-26

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Ryota Tajima ,  Yuugo Goto ,  Yumiko Yoneda ,  Junya Goto ,  Takuya Miwa ,  Masaaki Hiroki

IPC: H01M4/13 ,  H01M4/139 ,  H01M10/0525 ,  H01M2/02 ,  H01M4/02

Abstract: An electronic device having a novel structure, specifically, an electronic device having a novel structure that can be changed into various appearances is provided. Specifically, after an active material layer is formed on one or both surfaces of a current collector, the active material layer in a bent region is partly removed. The removed region of the active material layer can be in a linear shape, a dot shape, or a matrix shape, for example. After the active material layer is formed on one or both surfaces of the current collector, laser processing for removing part of the active material layer in an irradiation region is performed using laser light or the like. On the region where the surface of the current collector is exposed, the active material layer is not provided, and this region is a region that does not function as a battery. Owing to this region, a secondary battery with a wide movable region can be achieved.

公开(公告)号：US09960446B2

公开(公告)日：2018-05-01

申请号：US14722939

申请日：2015-05-27

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Minoru Takahashi ,  Ryota Tajima

IPC: H01M10/04 ,  H01M2/02 ,  H01G9/048 ,  H01G9/145 ,  H01G11/78

CPC classification number: H01M10/0436 ,  H01G9/048 ,  H01G9/145 ,  H01G11/78 ,  H01M2/026 ,  H01M2/0275 ,  H01M2/0277 ,  H01M2/0285 ,  H01M2/0287 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/13 ,  Y02T10/7022

Abstract: A secondary battery suitable for a portable information terminal or a wearable device is provided. An electronic device having a novel structure which can have various forms and a secondary battery that fits the forms of the electronic device are provided. In the secondary battery, sealing is performed using a film provided with depressions or projections that ease stress on the film due to application of external force. A pattern of depressions or projections is formed on the film by pressing, e.g., embossing.

公开(公告)号：US09852850B2

公开(公告)日：2017-12-26

申请号：US14802326

申请日：2015-07-17

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Nobuhiro Inoue ,  Ryota Tajima ,  Kazutaka Kuriki ,  Mitsuhiro Ichijo ,  Yoshikazu Hiura ,  Mai Sugikawa

IPC: H01M4/136 ,  H01M4/131 ,  H01M4/134 ,  H01M10/0525 ,  H01G11/30 ,  H01M4/13 ,  H01M4/36 ,  H01M4/38 ,  H01M10/052 ,  H01M4/04 ,  H01M4/133 ,  H01M4/139 ,  H01M4/58 ,  H01M4/587 ,  H01M10/04 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/42

CPC classification number: H01G11/30 ,  H01M4/0428 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/139 ,  H01M4/366 ,  H01M4/386 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0427 ,  H01M10/0431 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/425 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54 ,  Y02T10/7011 ,  Y02T10/7022

Abstract: A power storage device with high capacity is provided. Alternatively, a power storage device with excellent cycle characteristics is provided. Alternatively, a power storage device with high charge and discharge efficiency is provided. Alternatively, a power storage device with a long lifetime is provided. A negative electrode active material is provided over a negative electrode current collector, and the negative electrode active material layer is formed in such a manner that first layers and second layers are alternately stacked. The first layer includes at least an element selected from Si, Mg, Ca, Ga, Al, Ge, Sn, Pb, Sb, Bi, Ag, Zn, Cd, As, Hg, and In. The second layer includes oxygen and the same element as the one included in the first layer.

公开(公告)号：US09698412B2

公开(公告)日：2017-07-04

申请号：US15285725

申请日：2016-10-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuhiro Inoue ,  Kai Kimura ,  Sachiko Kataniwa ,  Ryota Tajima

IPC: H01M10/05 ,  H01M4/131 ,  H01G11/68 ,  H01M4/62 ,  H01M4/1393 ,  H01M4/133 ,  H01M4/36 ,  H01G11/06 ,  H01G11/28 ,  H01G11/50 ,  H01G11/46 ,  H01G11/58 ,  H01M4/134 ,  H01M4/38 ,  H01M4/485 ,  H01G11/66 ,  H01M4/48 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/131 ,  H01G11/06 ,  H01G11/28 ,  H01G11/46 ,  H01G11/50 ,  H01G11/58 ,  H01G11/66 ,  H01G11/68 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/362 ,  H01M4/366 ,  H01M4/386 ,  H01M4/483 ,  H01M4/485 ,  H01M4/62 ,  H01M4/628 ,  H01M10/0525 ,  H01M2004/027 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54 ,  Y02T10/7022

Abstract: A decomposition reaction of an electrolyte solution and the like caused as a side reaction of charge and discharge is minimized in repeated charge and discharge of a lithium ion battery or a lithium ion capacitor, and thus the lithium ion battery or the lithium ion capacitor can have long-term cycle performance. A negative electrode for a power storage device includes a negative electrode current collector and a negative electrode active material layer which includes a plurality of particles of a negative electrode active material. Each of the particles of the negative electrode active material has an inorganic compound film containing a first inorganic compound on part of its surface. The negative electrode active material layer has a film in contact with an exposed part of the negative electrode active material and part of the inorganic compound film. The film contains an organic compound and a second inorganic compound.

公开(公告)号：US09490080B2

公开(公告)日：2016-11-08

申请号：US14859703

申请日：2015-09-21

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuhiro Inoue ,  Kai Kimura ,  Sachiko Kataniwa ,  Ryota Tajima

IPC: H01M2/00 ,  H01G11/46 ,  H01G11/68 ,  H01M4/62 ,  H01M4/1393 ,  H01M4/133 ,  H01M4/36 ,  H01G11/06 ,  H01G11/28 ,  H01G11/50 ,  H01G11/58 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/485 ,  H01M4/02

CPC classification number: H01M4/131 ,  H01G11/06 ,  H01G11/28 ,  H01G11/46 ,  H01G11/50 ,  H01G11/58 ,  H01G11/66 ,  H01G11/68 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/362 ,  H01M4/366 ,  H01M4/386 ,  H01M4/483 ,  H01M4/485 ,  H01M4/62 ,  H01M4/628 ,  H01M10/0525 ,  H01M2004/027 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54 ,  Y02T10/7022

Abstract: A decomposition reaction of an electrolyte solution and the like caused as a side reaction of charge and discharge is minimized in repeated charge and discharge of a lithium ion battery or a lithium ion capacitor, and thus the lithium ion battery or the lithium ion capacitor can have long-term cycle performance. A negative electrode for a power storage device includes a negative electrode current collector and a negative electrode active material layer which includes a plurality of particles of a negative electrode active material. Each of the particles of the negative electrode active material has an inorganic compound film containing a first inorganic compound on part of its surface. The negative electrode active material layer has a film in contact with an exposed part of the negative electrode active material and part of the inorganic compound film. The film contains an organic compound and a second inorganic compound.

公开(公告)号：US20140127566A1

公开(公告)日：2014-05-08

申请号：US14060674

申请日：2013-10-23

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka Kuriki ,  Kai Kimura ,  Nobuhiro Inoue ,  Ryota Tajima ,  Tamae Moriwaka ,  Kiyofumi Ogino

IPC: H01G9/048 ,  H01M4/04 ,  H01G9/00 ,  H01M4/36

CPC classification number: H01M4/366 ,  H01G11/06 ,  H01G11/28 ,  H01M4/667 ,  H01M10/4235 ,  Y02E60/13 ,  Y02P70/54 ,  Y02T10/7022

Abstract: Irreversible capacity which causes a decrease in the charge and discharge capacity of a power storage device is reduced, and electrochemical decomposition of an electrolyte solution and the like on a surface of an electrode is inhibited. Further, the cycle characteristics of the power storage device is improved by reducing or inhibiting a decomposition reaction of the electrolyte solution and the like occurring as a side reaction in repeated charging and discharging of the power storage device. A power storage device electrode includes a current collector and an active material layer that is over the current collector and includes a binder and an active material. A coating film is provided on at least part of a surface of the active material. The coating film is spongy.

Abstract translation: 导致蓄电装置的充放电能力下降的不可逆容量降低，电极表面的电解液等的电化学分解受到抑制。 此外，通过减少或抑制在蓄电装置的重复充放电中作为副反应而发生的电解液等的分解反应，能够提高蓄电装置的循环特性。 蓄电装置电极包括集电体和活性物质层，该活性物质层在集电体上方并且包括粘合剂和活性物质。 在活性物质表面的至少一部分上设置涂膜。 涂膜是海绵状的。

公开(公告)号：US20140099554A1

公开(公告)日：2014-04-10

申请号：US14032214

申请日：2013-09-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Nobuhiro INOUE ,  Ryota Tajima ,  Tamae Moriwaka ,  Junpei Momo ,  Teppei Oguni ,  Kai Kimura ,  Kazutaka Kuriki ,  Shunpei Yamazaki

IPC: H01G9/042 ,  H01M4/36

CPC classification number: H01G9/042 ,  H01G11/06 ,  H01G11/26 ,  H01G11/50 ,  H01M4/02 ,  H01M4/133 ,  H01M4/134 ,  H01M4/366 ,  H01M10/0525 ,  Y02E60/122 ,  Y02E60/13

Abstract: To improve the reliability of a power storage device. A granular active material including carbon is used, and a net-like structure is formed on part of a surface of the granular active material. In the net-like structure, a carbon atom included in the granular active material is bonded to a silicon atom or a metal atom through an oxygen atom. Formation of the net-like structure suppresses reductive decomposition of an electrolyte solution, leading to a reduction in irreversible capacity. A power storage device using the above active material has high cycle performance and high reliability.

Abstract translation: 提高蓄电装置的可靠性。 使用包括碳的颗粒状活性材料，并且在颗粒活性材料的表面的一部分上形成网状结构。 在网状结构中，包含在粒状活性物质中的碳原子通过氧原子键合到硅原子或金属原子。 网状结构的形成抑制电解质溶液的还原分解，导致不可逆容量的降低。 使用上述活性物质的蓄电装置具有高循环性能和高可靠性。

公开(公告)号：US20130273405A1

公开(公告)日：2013-10-17

申请号：US13858237

申请日：2013-04-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru Takahashi ,  Ryota Tajima

IPC: H01M10/04

CPC classification number: H01M10/0436 ,  H01M2010/0495 ,  H01M2300/0082 ,  Y10T29/49108

Abstract: To provide a flexible, highly reliable, and sheet-like power storage device. The power storage device including a flexible substrate; a positive electrode lead and a negative electrode lead over the flexible substrate; and a plurality of power storage elements over the flexible substrate. The plurality of power storage elements each includes a stack body including a sheet-like positive electrode; a sheet-like negative electrode; and an electrolyte therebetween in an exterior body. An edge portion of the sheet-like positive electrode which extends to the outside of the exterior body is electrically connected to the positive electrode lead through a positive electrode tab provided for the exterior body. An edge portion of the sheet-like negative electrode which extends to the outside of the exterior body is electrically connected to the negative electrode lead through a negative electrode tab provided for the exterior body.

Abstract translation: 提供灵活，高可靠性和片状电力存储设备。 所述蓄电装置包括柔性基板; 柔性基板上的正极引线和负极引线; 以及在所述柔性基板上的多个电力存储元件。 多个蓄电元件各自包括：堆叠体，包括片状正极; 片状负极; 和其间的电解质。 延伸到外部主体的外侧的片状正电极的边缘部分通过设置在外部主体的正电极接头与正极引线电连接。 片状负极的延伸到外部本体的外侧的边缘部分通过设置在外部本体的负极接线片与负极引线电连接。

公开(公告)号：US12277874B2

公开(公告)日：2025-04-15

申请号：US18502413

申请日：2023-11-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kensuke Yoshizumi ,  Ryota Tajima

IPC: H04N7/18 ,  B60J3/02 ,  B60R11/00 ,  B60R11/02 ,  G09F21/04 ,  G09G3/00 ,  G09G3/20 ,  H10K102/00

Abstract: A display device or a driving support system which enables a driver to obtain information easily is provided. A display device or a driving support system which is unlikely to impose a burden on a driver is provided. A display device or a driving support system which is suitable for space saving is provided. A display device or a driving support system which is capable of large-area display is provided. A display device or a driving support system which does not impair the aesthetic appearance of the car interior is provided. The display device includes a display panel which has flexibility and can be transformed between a first form and a second form, and a driving means having a function of reversibly changing the display panel between the first form and the second form. The first form is a form in which a display surface of the display panel is suspended, and the second form is a form in which the display panel is stored upward.

公开(公告)号：US12230761B2

公开(公告)日：2025-02-18

申请号：US17246793

申请日：2021-05-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazuhei Narita ,  Ryota Tajima

IPC: H01M10/0569 ,  H01G11/52 ,  H01G11/60 ,  H01G11/62 ,  H01G11/68 ,  H01G11/78 ,  H01M4/66 ,  H01M10/052 ,  H01M10/0568 ,  H01M50/136 ,  H01M50/178 ,  H01M50/429 ,  H01M50/44 ,  H01M50/55 ,  H01M50/557 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129

Abstract: Provided is a power storage device whose charging and discharging characteristics are unlikely to be degraded by heat treatment or a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolyte, and an exterior body. The separator is positioned between the positive electrode and the negative electrode and includes polyphenylene sulfide or cellulosic fiber. The electrolyte includes propylene carbonate, ethylene carbonate, and vinylene carbonate, lithium hexafluorophosphate, and lithium bis(pentafluoroethanesulfonyl)amide. A concentration of lithium hexafluorophosphate with respect to the electrolyte is more than or equal to 0.01 wt % and less than or equal to 1.9 wt % in a weight ratio.