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    Secondary battery
    22.
    发明授权
    Secondary battery 有权
    二次电池

    公开(公告)号：US09570747B2

    公开(公告)日：2017-02-14

    申请号：US14365806

    申请日：2012-11-21

    Applicant: NEC Corporation

    Inventor： Hideaki Sasaki ,  Kazuhiko Inoue ,  Takehiro Noguchi

    IPC: H01M4/587 ,  H01M4/04 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/62 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

    CPC classification number: H01M4/587 ,  H01M4/0404 ,  H01M4/0416 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/505 ,  H01M4/525 ,  H01M4/621 ,  H01M4/623 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

    Abstract: There is provided a negative electrode for a secondary battery that can provide a secondary battery having high charge and discharge efficiency, and a high capacity retention rate in charge and discharge cycles. A negative electrode for a secondary battery according to this exemplary embodiment contains scale-like graphite, a fluorine-based resin, and an imide-based resin. A method for manufacturing a negative electrode for a secondary battery according to this exemplary embodiment includes applying a negative electrode slurry containing scale-like graphite, a fluorine-based resin, an imide-based resin, and a solvent for dissolving the fluorine-based resin and the imide-based resin to a negative electrode current collector; and heat-treating the negative electrode current collector at a temperature of 100° C. or more and 150° C. or less.

    Abstract translation: 提供一种二次电池用负极，其能够提供充放电效率高的二次电池以及充放电循环中的高容量保持率。 本实施方式的二次电池用负极包含鳞状石墨，氟系树脂和酰亚胺系树脂。 本实施方式的二次电池用负极的制造方法包括：涂布含有鳞状石墨，氟系树脂，酰亚胺系树脂和溶剂的氟系树脂的负极浆料 和酰亚胺基树脂组成负极集电体; 在100℃以上且150℃以下的温度下对负极集电体进行热处理。

    LITHIUM ION SECONDARY BATTERY
    27.
    发明申请
    LITHIUM ION SECONDARY BATTERY 有权
    锂离子二次电池

    公开(公告)号：US20140322615A1

    公开(公告)日：2014-10-30

    申请号：US14356710

    申请日：2012-10-26

    Applicant: NEC Corporation

    Inventor： Makiko Uehara ,  Takehiro Noguchi

    IPC: H01M10/0569 ,  H01M10/0525

    CPC classification number: H01M10/0569 ,  H01M2/1613 ,  H01M2/1626 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2300/0034 ,  H01M2300/0037 ,  Y02E60/122 ,  Y02T10/7011

    Abstract: It is an object of this exemplary embodiment to provide a lithium ion secondary battery using a positive electrode active material having an operating potential of 4.5 V or more, the lithium ion secondary battery having excellent high temperature cycle characteristics. This exemplary embodiment is a lithium ion secondary battery comprising a positive electrode and a negative electrode capable of intercalating and deintercalating lithium, a separator between the positive electrode and the negative electrode, and an electrolytic solution containing a nonaqueous electrolytic solvent, wherein the positive electrode comprises a positive electrode active material operating at a potential of 4.5 V or more versus lithium, the separator comprises cellulose, a cellulose derivative, or a glass fiber, and the nonaqueous electrolytic solvent comprises a fluorinated solvent.

    Abstract translation: 本实施方式的目的在于，提供使用具有4.5V以上的工作电位的正极活性物质的锂离子二次电池，锂离子二次电池具有优异的高温循环特性。 该示例性实施例是一种锂离子二次电池，其包括正极和能够插入和脱嵌锂的负极，正极和负极之间的隔板以及含有非水电解溶剂的电解液，其中正电极包括 相对于锂，电势为4.5V以上的正极活性物质，隔膜包含纤维素，纤维素衍生物，玻璃纤维，非水电解溶剂含有氟化溶剂。

    LITHIUM ION SECONDARY BATTERY
    28.
    发明申请
    LITHIUM ION SECONDARY BATTERY 审中-公开
    锂离子二次电池

    公开(公告)号：US20140302405A1

    公开(公告)日：2014-10-09

    申请号：US14356720

    申请日：2012-09-24

    Applicant: NEC Corporation

    Inventor： Hideaki Sasaki ,  Takehiro Noguchi

    IPC: H01M10/0567 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0569

    CPC classification number: H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2300/0034 ,  Y02T10/7011

    Abstract: An object of the exemplary embodiment is to provide a lithium ion secondary battery using a 5 V class positive electrode, in which generation of gas is reduced. The exemplary embodiment is a lithium ion secondary battery comprising at least a positive electrode and an electrolyte solution. The lithium ion secondary battery is characterized in that the positive electrode contains a positive electrode active material having an operating potential at 4.5 V or more versus lithium metal, and the electrolyte solution contains a cyano group-containing polymer.

    Abstract translation: 该示例性实施例的目的是提供一种使用5V级正极的锂离子二次电池，其中气体的产生减少。 该示例性实施例是至少包括正极和电解质溶液的锂离子二次电池。 锂离子二次电池的特征在于，正极含有与锂金属相比在4.5V以上的工作电位的正极活性物质，电解质溶液含有含氰基的聚合物。

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