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    LITHIUM SECONDARY BATTERY AND PRODUCTION METHOD THEREFOR
    1.
    发明申请
    LITHIUM SECONDARY BATTERY AND PRODUCTION METHOD THEREFOR 有权
    锂二次电池及其生产方法

    公开(公告)号：US20150236376A1

    公开(公告)日：2015-08-20

    申请号：US14421523

    申请日：2013-07-31

    Applicant: NEC Corporation

    Inventor： Takehiro Noguchi ,  Hideaki Sasaki ,  Makiko Takahashi ,  Yuukou Katou

    IPC: H01M10/0567 ,  H01M10/0525

    CPC classification number: H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/30 ,  H01M2300/0025 ,  Y10T29/49108

    Abstract: An embodiment of the present invention relates to a lithium secondary battery comprising a nonaqueous electrolytic solution comprising a phosphate compound represented by the following general formula (1): O═P(O—R1)(O—R2)(O—R3) (1), wherein R1, R2, and R3 are each alkyl group or the like or a group comprising an ether bond represented by —R4—O—R5 (R4 represents alkylene group, and R5 represents alkyl group), and at least one of R1, R2, and R3 is a group comprising an ether bond, and at least one of R1, R2, and R3 contains fluorine, and a positive electrode active material having a charge and discharge region of 4.5 V or more versus lithium.

    Abstract translation: 本发明的一个实施方案涉及一种锂二次电池，其包含非水电解液，其包含由以下通式（1）表示的磷酸盐化合物：O = P（O-R 1）（O-R 2）（O-R 3）（O-R 3） 1），其中R1，R2和R3各自为烷基等，或由-R4-O-R5（R4表示亚烷基，R5表示烷基）表示的醚键的基团，以及至少一种 R1，R2和R3是包含醚键的基团，R1，R2和R3中的至少一个含有氟，并且相对于锂，电荷和放电区域的充电和放电区域为4.5V或更高。

    Secondary battery electrolyte and secondary battery
    2.
    发明授权
    Secondary battery electrolyte and secondary battery 有权

    公开(公告)号：US10263286B2

    公开(公告)日：2019-04-16

    申请号：US14889718

    申请日：2014-05-09

    Applicant: NEC Corporation

    Inventor： Takehiro Noguchi ,  Yuukou Katou ,  Hideaki Sasaki ,  Makiko Takahashi ,  Emiko Fujii

    IPC: H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/058 ,  H01M4/58 ,  H01M10/0567 ,  H01M4/485 ,  H01M10/04

    Abstract: The present invention relates to a secondary battery electrolyte, which contains a first fluorine-containing ether compound, a second fluorine-containing ether compound, and at least one selected from fluorine-containing phosphate ester compounds and sulfone compounds, wherein the fluorine substitution rate of the first fluorine-containing ether compound is lower than that of the second fluorine-containing ether compound, and the content of the first fluorine-containing ether compound is higher than that of the second fluorine-containing ether compound. According to the present invention, with respect to batteries operating at a high voltage, and batteries supposed to be used at a high temperature for a long period, there can be provided a lithium secondary battery suppressed in the decomposition reaction of the electrolyte and improved in the life characteristics.

    Lithium ion secondary battery
    3.
    发明授权
    Lithium ion secondary battery 有权

    公开(公告)号：US10177413B2

    公开(公告)日：2019-01-08

    申请号：US14443719

    申请日：2013-11-18

    Applicant: NEC Corporation

    Inventor： Hideaki Sasaki ,  Takehiro Noguchi ,  Yuukou Katou ,  Makiko Takahashi

    IPC: H01M10/052 ,  H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M4/131 ,  H01M10/0525 ,  H01M4/62

    Abstract: The present invention is a lithium ion secondary battery comprising a positive electrode and a non-aqueous electrolyte solution comprising a non-aqueous electrolyte solvent, wherein the positive electrode comprises a positive electrode active material having an operating potential at 4.5 V or higher versus lithium metal, the non-aqueous electrolyte solvent comprises a fluorinated phosphate ester represented by a predetermined formula and at least one selected from the group consisting of sulfone compounds represented by predetermined formulae, and the sulfone compound is included in an amount of 5 volume % or more in the non-aqueous electrolyte solvent.

    LITHIUM SECONDARY BATTERY
    7.
    发明申请
    LITHIUM SECONDARY BATTERY 有权
    锂二次电池

    公开(公告)号：US20150171477A1

    公开(公告)日：2015-06-18

    申请号：US14414985

    申请日：2013-07-01

    Applicant: NEC Corporation

    Inventor： Makiko Takahashi ,  Takehiro Noguchi ,  Hideaki Sasaki ,  Yuukou Katou

    IPC: H01M10/0569 ,  H01M4/58 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0567

    CPC classification number: H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0567 ,  H01M2004/028 ,  H01M2300/0025 ,  H01M2300/0034 ,  H01M2300/0037 ,  H01M2300/004 ,  H01M2300/0042

    Abstract: The present invention relates to a lithium secondary battery, comprising a positive electrode; a negative electrode; and a non-aqueous electrolyte solution, wherein the non-aqueous electrolyte solution contains a phosphate polymer represented by the following formula (1): wherein R1 to R5 each independently represents aliphatic hydrocarbon group or fluorinated aliphatic hydrocarbon group, wherein the group may have a substituent, and n represents an integer of 1 or more, with the proviso that when n is 2 or more, two or more R1(s) may be the same as, or different from each other and two or more R4(s) may be the same as, or different from each other; and a fluorinated phosphate represented by the following formula (2): wherein R6 to R8 each independently represents aliphatic hydrocarbon group or fluorinated aliphatic hydrocarbon group, wherein the group may have a substituent, with the proviso that at least one of R6 to R8 is fluorinated aliphatic hydrocarbon group.

    Abstract translation: 锂二次电池技术领域本发明涉及一种锂二次电池，其包括正极; 负极; 和非水电解质溶液，其中所述非水电解质溶液含有下式（1）表示的磷酸酯聚合物：其中R1至R5各自独立地表示脂族烃基或氟化脂族烃基，其中所述基团可以具有 取代基，n表示1以上的整数，条件是当n为2以上时，两个以上的R 1（s）可以相同也可以不同，可以使两个以上的R 4（s） 彼此相同或不同; 和由下式（2）表示的氟化磷酸酯：其中R6至R8各自独立地表示脂族烃基或氟化脂族烃基，其中基团可以具有取代基，条件是R6至R8中的至少一个为氟化 脂族烃基。

    Lithium secondary battery
    10.
    发明授权
    Lithium secondary battery 有权
    锂二次电池

    公开(公告)号：US09461335B2

    公开(公告)日：2016-10-04

    申请号：US14382429

    申请日：2013-02-26

    Applicant: NEC Corporation

    Inventor： Takehiro Noguchi ,  Hideaki Sasaki ,  Yuukou Katou ,  Makiko Takahashi

    IPC: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58

    CPC classification number: H01M10/0569 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2220/30 ,  H01M2300/0034 ,  H01M2300/004 ,  Y02E60/122

    Abstract: There is provided a secondary battery comprising: a positive electrode capable of intercalating and deintercalating a lithium ion; a negative electrode capable of intercalating and deintercalating a lithium ion; and an electrolytic solution, wherein the electrolytic solution comprises: a fluorine-containing cyclic ether compound represented by the following formula (1); and at least one selected from a fluorine-containing chain ether compound or a fluorine-containing phosphate ester compound; wherein R1 to R6 are each independently selected from a hydrogen atom, a fluorine atom, a chlorine atom, or a fluorine-substituted, chlorine-substituted, or unsubstituted alkyl group, and at least one of R1 to R6 is selected from a fluorine atom or a fluorine-substituted alkyl group.

    Abstract translation: 提供一种二次电池，包括：能够插入和脱嵌锂离子的正极; 能够插入和脱嵌锂离子的负极; 和电解液，其中所述电解液包含：由下式（1）表示的含氟环醚化合物; 和选自含氟链状醚化合物或含氟磷酸酯化合物中的至少一种; 其中R 1至R 6各自独立地选自氢原子，氟原子，氯原子或氟取代的，氯取代的或未取代的烷基，R 1至R 6中的至少一个选自氟原子 或氟取代的烷基。

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