公开(公告)号：US09882179B2

公开(公告)日：2018-01-30

申请号：US15217407

申请日：2016-07-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota Tajima

IPC: H01M2/02 ,  G06F1/16 ,  H01M4/70 ,  H01M10/0525 ,  H01M4/485 ,  H01M4/134

CPC classification number: H01M2/0275 ,  G06F1/163 ,  G06F1/1635 ,  H01M2/0212 ,  H01M2/0287 ,  H01M4/134 ,  H01M4/485 ,  H01M4/70 ,  H01M10/0525 ,  H01M2220/30

Abstract: An electronic device having a novel structure is provided. Specifically, an electronic device having a novel structure that can change its form into various appearances is provided. In a secondary battery, a foldable portion from which part of the components is removed by forming openings in a current collector becomes thin and can be more likely to be bent than the other regions. A cylindrical cushioning material overlapping with the foldable position of the secondary battery is provided. The provision of this cushioning material makes it possible to fix the minimum radius of curvature of the secondary battery at the foldable position. Accordingly, it is possible to prevent the exterior body from being broken due to bending along a curved surface with a smaller radius of curvature than a diameter of the cushioning material.

公开(公告)号：US09646771B2

公开(公告)日：2017-05-09

申请号：US13797023

申请日：2013-03-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazutaka Kuriki ,  Ryota Tajima ,  Tamae Morikawa ,  Junpei Momo

IPC: H01G9/025 ,  H01G9/15 ,  H01G9/28 ,  H01G11/06 ,  H01G11/08 ,  H01G11/28 ,  H01G11/50 ,  H01G11/56 ,  H01M4/64 ,  H01M6/40 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  H01L49/02

CPC classification number: H01G9/28 ,  H01G9/025 ,  H01G9/15 ,  H01G11/06 ,  H01G11/08 ,  H01G11/28 ,  H01G11/50 ,  H01G11/56 ,  H01L28/40 ,  H01M4/64 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  Y02E60/13 ,  Y02P70/54 ,  Y02T10/7011 ,  Y02T10/7022

Abstract: Disclosed is a power storage element including a positive electrode current collector layer and a negative electrode current collector layer which are arranged on the same plane. The power storage element further includes a positive electrode active material layer over the positive electrode current collector layer and a negative electrode active material layer over the negative electrode current collector layer. An electrolyte layer in contact with at least the positive electrode active material layer and the negative electrode active material layer is provided. The electrolyte layer may be a solid electrolyte layer.

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：US09461300B2

公开(公告)日：2016-10-04

申请号：US13626054

申请日：2012-09-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeshi Osada ,  Ryota Tajima ,  Teppei Oguni ,  Shunpei Yamazaki

IPC: H01M4/134 ,  H01M4/36 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M2/16 ,  H01M2/18 ,  H01M4/02

CPC classification number: H01M4/134 ,  H01M2/1673 ,  H01M2/18 ,  H01M4/366 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/025 ,  H01M2004/027 ,  Y02E60/122

Abstract: Provided are an electrode for a power storage device having much better charge/discharge characteristics and a power storage device using the electrode. A plurality of cavities is provided in a surface of an active material layer over a current collector. A graphene covering the active material layer facilitates rapid charge/discharge and prevents breakdown of the current collector caused by charge/discharge. With improved charge/discharge characteristics, an electrode for a power storage device which does not easily deteriorate and a power storage device using the electrode can be provided.

Abstract translation: 提供一种具有更好的充电/放电特性的蓄电装置的电极和使用该电极的蓄电装置。 在集电体上方的活性物质层的表面设有多个空腔。 覆盖活性材料层的石墨烯有助于快速充电/放电，并防止由充电/放电引起的集电器故障。 具有改善的充电/放电特性，可以提供不容易劣化的蓄电装置用电极和使用电极的蓄电装置。

公开(公告)号：US20160204437A1

公开(公告)日：2016-07-14

申请号：US14988159

申请日：2016-01-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryota Tajima ,  Junpei MOMO ,  Masaki YAMAKAJI

IPC: H01M4/62 ,  H01M2/02 ,  H01M10/04

CPC classification number: H01M4/62 ,  H01M2/02 ,  H01M4/13 ,  H01M10/0431

Abstract: A flexible power storage device or a power storage device of which the capacity and cycle characteristics do not easily deteriorate even when the power storage device is curved is provided. An electrode in which an active material layer, a current collector, and a friction layer are stacked in this order is provided. Furthermore, a power storage device that includes the electrode as at least one of a positive electrode and a negative electrode is provided.

Abstract translation: 提供即使在蓄电装置弯曲时容量和循环特性也不容易劣化的柔性蓄电装置或蓄电装置。 提供其中依次层叠活性物质层，集电体和摩擦层的电极。 此外，提供了包括作为正极和负极中的至少一个的电极的蓄电装置。

公开(公告)号：US09356030B2

公开(公告)日：2016-05-31

申请号：US14656322

申请日：2015-03-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryota Tajima ,  Hajime Tokunaga

IPC: H01L27/112 ,  H01L27/10 ,  H01L23/525

CPC classification number: H01L27/11206 ,  H01L23/5252 ,  H01L27/101 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An object is to provide an antifuse with little power consumption at the time of writing. The antifuse is used for a memory element in a read-only memory device. The antifuse includes a first conductive layer, a multilayer film of two or more layers in which an amorphous silicon film and an insulating film are alternately stacked over the first conductive layer, and a second conductive layer over the multilayer film. Voltage is applied between the first and second conductive layers and resistance of the multilayer film is decreased, whereby data is written to the memory element. When an insulating film having higher resistance than amorphous silicon is formed between the first and second conductive layers, current flowing through the antifuse at the time of writing is reduced.

Abstract translation: 目的是提供一种在写入时功耗很小的反熔丝。 反熔丝用于只读存储器件中的存储元件。 反熔丝包括第一导电层，其中非晶硅膜和绝缘膜交替堆叠在第一导电层上的两层或更多层的多层膜，以及多层膜上的第二导电层。 电压施加在第一和第二导电层之间，并且多层膜的电阻降低，从而将数据写入存储元件。 当在第一和第二导电层之间形成具有比非晶硅更高的电阻的绝缘膜时，在写入时流过反熔丝的电流减小。

公开(公告)号：US20140087251A1

公开(公告)日：2014-03-27

申请号：US14029853

申请日：2013-09-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru TAKAHASHI ,  Ryota Tajima ,  Kazutaka Kuriki

IPC: H01M4/62

CPC classification number: H01M4/628 ,  H01M4/366 ,  H01M4/62 ,  H01M10/052

Abstract: Irreversible capacity which causes a decrease in the initial capacity of a power storage device is reduced and the electrochemical decomposition of an electrolytic solution is suppressed. The decomposition reaction of an electrolytic solution as a side reaction of a power storage device is reduced or suppressed to improve the cycle performance of the power storage device. An electrode material for a power storage device includes active material particles and coating films covering part of surfaces of the active material particles. Carrier ions used for the power storage device can pass through the coating film. The product of the electric resistivity and the thickness of the coating film at 25° C. is greater than or equal to 20 Ωm·m.

Abstract translation: 导致蓄电装置的初始容量降低的不可逆容量降低，电解液的电化学分解受到抑制。 作为蓄电装置的副反应的电解液的分解反应减少或抑制，以提高蓄电装置的循环性能。 用于蓄电装置的电极材料包括活性材料颗粒和覆盖活性材料颗粒表面的一部分的涂膜。 用于蓄电装置的载体离子可以通过涂膜。 25℃时的电阻率和涂膜厚度的乘积大于等于20Ω·m·m。

公开(公告)号：US20130149605A1

公开(公告)日：2013-06-13

申请号：US13691929

申请日：2012-12-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tetsuya KAKEHATA ,  Ryota Tajima ,  Teppei Oguni ,  Takeshi Osada ,  Shunpei Yamazaki ,  Shunsuke Adachi ,  Takuya Hirohashi

IPC: H01M4/70 ,  H01M4/04 ,  H01M4/66

CPC classification number: H01M4/70 ,  B82Y30/00 ,  H01M4/045 ,  H01M4/0457 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/62 ,  H01M4/625 ,  H01M4/661 ,  H01M4/662 ,  H01M10/052 ,  H01M2004/027

Abstract: A lithium secondary battery which has high charge-discharge capacity, can be charged and discharged at high speed, and has little deterioration in battery characteristics due to charge and discharge is provided. A negative electrode includes a current collector and a negative electrode active material layer. The current collector includes a plurality of protrusion portions extending in a substantially perpendicular direction and a base portion connected to the plurality of protrusion portions. The protrusion portions and the base portion are formed using the same material containing titanium. A top surface of the base portion and at least a side surface of the protrusion portion are covered with the negative electrode active material layer. The negative electrode active material layer may be covered with graphene.

Abstract translation: 具有高充放电能力的锂二次电池可以高速充电和放电，并且由于提供充电和放电而具有的电池特性几乎没有劣化。 负极包括集电体和负极活性物质层。 集电体包括沿基本上垂直的方向延伸的多个突出部分和连接到多个突出部分的基部。 使用与钛相同的材料形成突出部和基部。 基部的顶面和突起部的至少侧面被负极活性物质层覆盖。 负极活性物质层可以用石墨烯覆盖。

公开(公告)号：US12266957B2

公开(公告)日：2025-04-01

申请号：US17431302

申请日：2020-02-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Toshiyuki Isa ,  Takayuki Ikeda ,  Kei Takahashi ,  Ryota Tajima

IPC: H02J7/00 ,  G01R31/367 ,  G01R31/382 ,  H01L27/02 ,  H01M10/48

Abstract: The safety is ensured in such a manner that an abnormality of a secondary battery is detected, for example, a phenomenon that lowers the safety of the secondary battery is detected early and a warning is given to a user. A first protection circuit and a second protection circuit are provided for one secondary battery. The first protection circuit includes a memory circuit including a transistor including an oxide semiconductor. Combination of a plurality of protection circuits enables a complementary double protection system in charging, and the safety can be further enhanced.

公开(公告)号：US12142726B2

公开(公告)日：2024-11-12

申请号：US17438615

申请日：2020-03-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei Yamazaki ,  Kazutaka Kuriki ,  Ryota Tajima ,  Yumiko Yoneda

IPC: H01M10/0562 ,  H01M4/04 ,  H01M4/38 ,  H01M10/058 ,  H01M4/02

Abstract: An all-solid-state secondary battery having a higher level of safety than a conventional lithium-ion secondary battery using an electrolyte solution, specifically, a thin-film-type solid-state secondary battery, and a manufacturing method thereof are provided. As a solid electrolyte, a mixed material obtained by co-evaporation of SiO and an organic complex of lithium is used. That is, a solid electrolyte layer formed using a mixed material of an inorganic material and an organic material is used in a solid-state secondary battery. The ratio of oxygen to silicon in the solid electrolyte layer is higher than 1 and lower than 2.