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    STORAGE BATTERY ELECTRODE, MANUFACTURING METHOD THEREOF, STORAGE BATTERY, AND ELECTRONIC DEVICE
    22.
    发明申请
    STORAGE BATTERY ELECTRODE, MANUFACTURING METHOD THEREOF, STORAGE BATTERY, AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20210167353A1

    公开(公告)日：2021-06-03

    申请号：US17171042

    申请日：2021-02-09

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Takahiro KAWAKAMI ,  Yohei MOMMA ,  Teruaki OCHIAI ,  Tatsuya IKENUMA

    IPC: H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62

    Abstract: In manufacturing a storage battery electrode, a method for manufacturing a storage battery electrode with high capacity and stability is provided.
    As a method for preventing a mixture for forming an active material layer from becoming strongly basic, a first aqueous solution is formed by mixing an active material exhibiting basicity with an aqueous solution exhibiting acidity and including an oxidized derivative of a first conductive additive; a first mixture is formed by reducing the oxidized derivative of the first conductive additive by drying the first aqueous solution; a second mixture is formed by mixing a second conductive additive and a binder; a third mixture is formed by mixing the first mixture and the second mixture; and a current collector is coated with the third mixture. The strong basicity of the mixture for forming an active material layer is lowered; thus, the binder can be prevented from becoming gelled.

    METHOD FOR FORMING ELECTRODE, ELECTRODE, STORAGE BATTERY, AND ELECTRIC DEVICE
    27.
    发明申请
    METHOD FOR FORMING ELECTRODE, ELECTRODE, STORAGE BATTERY, AND ELECTRIC DEVICE 审中-公开
    用于形成电极，电极，储存电池和电气设备的方法

    公开(公告)号：US20150349345A1

    公开(公告)日：2015-12-03

    申请号：US14722795

    申请日：2015-05-27

    Applicant: Semiconductor Energy Laboratory Co., LTD.

    Inventor： Tatsuya IKENUMA

    IPC: H01M4/62 ,  H01M4/133 ,  H01M4/04 ,  H01M10/42

    CPC classification number: H01M4/623 ,  H01M4/0404 ,  H01M4/049 ,  H01M4/133 ,  H01M4/625 ,  H01M10/052 ,  Y02E60/122 ,  Y02T10/7011

    Abstract: An electrode improved for achieving a storage battery having both a high electrode strength and favorable electrode conductivity is provided. The electrode includes graphene and a modified polymer in an active material layer or includes a layer substantially formed of carbon particles and an active material layer including a modified polymer over a current collector. The modified polymer has a poly(vinylidene fluoride) structure and partly has a polyene structure or an aromatic ring structure. The polyene structure or the aromatic ring structure is sandwiched between poly(vinylidene fluoride) structures.

    Abstract translation: 提供了一种改进用于实现具有高电极强度和良好的电极导电性的蓄电池的电极。 电极包括石墨烯和活性材料层中的改性聚合物，或者包括基本上由碳颗粒形成的层和在集电体上包含改性聚合物的活性物质层。 改性聚合物具有聚（偏二氟乙烯）结构，部分具有多烯结构或芳环结构。 多烯结构或芳环结构夹在聚（偏二氟乙烯）结构之间。

    ELECTRODE, POWER STORAGE DEVICE, ELECTRONIC DEVICE, AND METHOD FOR FABRICATING ELECTRODE
    28.
    发明申请
    ELECTRODE, POWER STORAGE DEVICE, ELECTRONIC DEVICE, AND METHOD FOR FABRICATING ELECTRODE 审中-公开
    电极，电力存储装置，电子装置及其制造方法

    公开(公告)号：US20150262762A1

    公开(公告)日：2015-09-17

    申请号：US14645090

    申请日：2015-03-11

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Tatsuya IKENUMA ,  Kazutaka KURIKI ,  Ai NAKAGAWA

    IPC: H01G11/38 ,  H01M4/04 ,  H01M4/583 ,  G06F1/16 ,  H01G11/86 ,  H01G11/40 ,  H01G11/66 ,  H01M4/62 ,  H01M4/133

    CPC classification number: H01G11/38 ,  G06F1/16 ,  G06F1/1635 ,  H01G11/30 ,  H01G11/40 ,  H01G11/86 ,  H01M4/0404 ,  H01M4/0419 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/366 ,  H01M4/587 ,  H01M4/622 ,  H01M4/625 ,  H01M2004/027 ,  Y02E60/13 ,  Y02T10/7022

    Abstract: The cycle performance of a lithium-ion secondary battery or a lithium-ion capacitor can be obtained by minimizing the decomposition reaction of an electrolytic solution, etc. in the repeated charge and discharge cycles of the lithium-ion secondary battery or the lithium-ion capacitor. An electrode includes a current collector and an active material layer over the current collector. The active material layer includes active material particles, a conductive additive, a binder, and a film containing silicon oxide as its main component. The surface of one of the active material particles includes at least one of a region in contact with the surface of another active material particle, a region in contact with the conductive additive, and a region in contact with the binder. The surface of the active material particle except these regions is at least partly in contact with the film containing silicon oxide as its main component.

    Abstract translation: 锂离子二次电池或锂离子电容器的循环性能可以通过使锂离子二次电池或锂离子的重复充放电循环中的电解液等的分解反应最小化来获得 电容器。 电极包括在集电器上方的集电器和活性材料层。 活性物质层包括活性物质粒子，导电性添加剂，粘合剂以及以氧化硅为主要成分的膜。 活性物质颗粒之一的表面包括与另一活性物质颗粒的表面接触的区域，与导电添加剂接触的区域和与粘合剂接触的区域中的至少一个。 除了这些区域以外的活性物质颗粒的表面至少部分地与含有氧化硅作为其主要成分的膜接触。

    LITHIUM MANGANESE COMPOSITE OXIDE, SECONDARY BATTERY, AND ELECTRICAL DEVICE
    29.
    发明申请
    LITHIUM MANGANESE COMPOSITE OXIDE, SECONDARY BATTERY, AND ELECTRICAL DEVICE 有权
    锂锰氧化物，二次电池和电气设备

    公开(公告)号：US20150099178A1

    公开(公告)日：2015-04-09

    申请号：US14492759

    申请日：2014-09-22

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Takahiro KAWAKAMI ,  Tatsuya IKENUMA ,  Satoshi SEO

    IPC: H01M4/36 ,  H01M4/505 ,  H01M4/131

    CPC classification number: H01M4/366 ,  H01M4/131 ,  H01M4/364 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/30

    Abstract: The volume density or weight density of lithium ions that can be received and released in and from a positive electrode active material is increased to achieve high capacity and high energy density of a secondary battery. In a lithium manganese composite oxide, each particle includes a first region including a crystal with a layered rock-salt crystal structure and a second region including a crystal with a spinel crystal structure. The second region is in contact with the outside of the first region. The lithium manganese composite oxide has high structural stability and high capacity.

    Abstract translation: 可以增加可以从正极活性物质中吸收和释放的锂离子的体积密度或重量密度，以实现二次电池的高容量和高能量密度。 在锂锰复合氧化物中，每个颗粒包括包含具有层状岩盐晶体结构的晶体的第一区域和包括具有尖晶石晶体结构的晶体的第二区域。 第二区域与第一区域的外部接触。 锂锰复合氧化物结构稳定性高，容量大。

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