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    POWER STORAGE DEVICE
    11.
    发明申请
    POWER STORAGE DEVICE 有权
    电源存储设备

    公开(公告)号：US20150017541A1

    公开(公告)日：2015-01-15

    申请号：US14472962

    申请日：2014-08-29

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Ryota TAJIMA ,  Shunpei YAMAZAKI ,  Teppei OGUNI ,  Takeshi OSADA ,  Shinya SASAGAWA ,  Kazutaka KURIKI

    IPC: H01M4/133 ,  H01M10/0525

    CPC classification number: H01M4/133 ,  B82Y30/00 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/465 ,  Y02E60/122 ,  Y02T10/7011

    Abstract: A power storage device which has high charge/discharge capacity and less deterioration in battery characteristics due to charge/discharge and can perform charge/discharge at high speed is provided. A power storage device includes a negative electrode. The negative electrode includes a current collector and an active material layer provided over the current collector. The active material layer includes a plurality of protrusions protruding from the current collector and a graphene provided over the plurality of protrusions. Axes of the plurality of protrusions are oriented in the same direction. A common portion may be provided between the current collector and the plurality of protrusions.

    Abstract translation: 具有充电/放电容量高，蓄电池特性劣化少的蓄电装置，能够高速进行充放电。 蓄电装置包括负极。 负极包括设置在集电体上方的集电体和活性物质层。 活性物质层包括从集电体突出的多个突起和设置在多个突起上的石墨烯。 多个突起的轴线朝向相同的方向。 在集电体和多个突起之间可以设置公共部分。

    NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY
    12.
    发明申请
    NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY 审中-公开
    用于二次电池和二次电池的负极

    公开(公告)号：US20130236781A1

    公开(公告)日：2013-09-12

    申请号：US13769855

    申请日：2013-02-19

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Teppei OGUNI ,  Ryota Tajima

    IPC: H01M4/62

    CPC classification number: H01M4/622 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/661 ,  H01M4/70

    Abstract: A negative electrode for a secondary battery and a secondary battery using the negative electrode are provided. The negative electrode includes a current collector, an active material layer, and a high molecular material layer. The current collector includes a plurality of protrusion portions extending substantially perpendicularly and a base portion which includes the same material as the plurality of protrusion portions and is connected to the plurality of protrusion portions. The protrusion portions and the active material layer covering the protrusion portions form negative electrode protrusion portions. The base portion and the active material layer covering the base portion form a negative electrode base portion. Part of side surfaces of the negative electrode protrusion portions including basal portions thereof and a top surface of the negative electrode base portion are covered with the high molecular material layer.

    Abstract translation: 提供二次电池用负极和使用负极的二次电池。 负极包括集电体，活性物质层和高分子材料层。 集电体包括大致垂直延伸的多个突起部和与多个突起部相同的材料并与多个突起部连接的基部。 覆盖突起部的突出部和活性物质层形成负极突起部。 覆盖基部的基部和活性物质层形成负极基部。 负极突起部分的包括其基部和负极基部的顶表面的侧表面的一部分被高分子材料层覆盖。

    CLASSIFICATION METHOD
    13.
    发明申请
    CLASSIFICATION METHOD 有权

    公开(公告)号：US20240378922A1

    公开(公告)日：2024-11-14

    申请号：US18779530

    申请日：2024-07-22

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Teppei OGUNI ,  Takahiro FUKUTOME

    IPC: G06V40/18 ,  G06T7/60 ,  G06V10/56 ,  G06V10/764 ,  G06V10/774

    Abstract: Person's conditions are classified according to his/her eye data. Person's conditions are classified according to his/her eye data using an imaging device, a feature extraction unit, and a classifier. The imaging device has a function of generating a group of images by continuous image capturing, and the group of images preferably includes an image of an eye area. The eye includes a black area and a white area. The method includes the steps in which the feature extraction unit extracts the eye area from the group of images, extracts a blinking amplitude, detects an image for determining start of eye blinking, stores an image for determining end of eye blinking as first data, and stores an image after a predetermined time elapsed from the first data as second data. The step in which the feature extraction unit extracts the white area from the first data and the second data is included. The classifier can use the white area as learning data.

    METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL, AND LITHIUM ION BATTERY
    16.
    发明申请
    METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL, AND LITHIUM ION BATTERY 有权

    公开(公告)号：US20210226216A1

    公开(公告)日：2021-07-22

    申请号：US17224229

    申请日：2021-04-07

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Takuya MIWA ,  Yumiko YONEDA ,  Teppei OGUNI

    IPC: H01M4/58 ,  C01B25/45

    Abstract: A composite oxide with high diffusion rate of lithium is provided. Alternatively, a lithium-containing complex phosphate with high diffusion rate of lithium is provided. Alternatively, a positive electrode active material with high diffusion rate of lithium is provided. Alternatively, a lithium ion battery with high output is provided. Alternatively, a lithium ion battery that can be manufactured at low cost is provided. A positive electrode active material is formed through a first step of mixing a lithium compound, a phosphorus compound, and water, a second step of adjusting pH by adding a first aqueous solution to a first mixed solution formed in the first step, a third step of mixing an iron compound with a second mixed solution formed in the second step, a fourth step of performing heat treatment under a pressure more than or equal to 0.1 MPa and less than or equal to 2 MPa at a highest temperature more than 100° C. and less than or equal to 119° C. on a third mixed solution formed in the third step with a pH of more than or equal to 3.5 and less than or equal to 5.0.

    GRAPHENE COMPOUND, METHOD FOR FORMING GRAPHENE COMPOUND, AND LITHIUM-ION STORAGE BATTERY
    17.
    发明申请
    GRAPHENE COMPOUND, METHOD FOR FORMING GRAPHENE COMPOUND, AND LITHIUM-ION STORAGE BATTERY 审中-公开

    公开(公告)号：US20200006809A1

    公开(公告)日：2020-01-02

    申请号：US16544958

    申请日：2019-08-20

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Hiroshi KADOMA ,  Teppei OGUNI ,  Satoshi SEO

    IPC: H01M10/0565 ,  H01M2/02 ,  H01M10/0525 ,  C01B32/194 ,  C01B32/23 ,  C01B32/198 ,  H01M10/0585

    Abstract: A material that can be used in a wide temperature range is provided. A graphene compound includes graphene or graphene oxide and a substituted or unsubstituted chain group, the chain group includes two or more ether bonds, and the chain group is bonded to the above graphene or graphene oxide through a Si atom. Alternatively, a method for forming a graphene compound includes a first step and a second step after the first step. In the first step, graphene oxide and a base are stirred under a nitrogen stream. In the second step, the mixture is cooled to room temperature, a silylating agent that has a group having two or more ether bonds is introduced into the mixture, and the obtained mixture is stirred. The base is butylamine, pentylamine, hexylamine, diethylamine, dipropylamine, dibutylamine, triethylamine, tripropylamine, or pyridine.

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