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    Negative electrode for use in lithium secondary battery and process for producing the same
    4.
    发明授权
    Negative electrode for use in lithium secondary battery and process for producing the same 失效
    用于锂二次电池的负电极及其制造方法

    公开(公告)号：US5795678A

    公开(公告)日：1998-08-18

    申请号：US414195

    申请日：1995-03-31

    申请人： Norio Takami ,  Takahisa Ohsaki ,  Toshio Tamaki ,  Hideyuki Nakajima ,  Yasushi Katsuta

    发明人： Norio Takami ,  Takahisa Ohsaki ,  Toshio Tamaki ,  Hideyuki Nakajima ,  Yasushi Katsuta

    IPC分类号： H01M4/58 ,  H01M4/02

    CPC分类号： H01M4/587

    摘要： A negative electrode for use in a secondary battery which comprises milled graphite fibers derived from mesophase pitch each having circumferential, upper end and lower end faces, the milled graphite fibers each being composed of graphite layers having therebetween voids as inlets and outlets for lithium ions, all of the circumferential, upper end and lower end faces having openings of the voids between the graphite layers, which serve as inlets or outlets for lithium ions. This negative electrode for use in a secondary battery can be utilized to provide a lithium secondary battery of nonaqueous electrolyte which has large charge and discharge capacities and which permits setting the current density at charge or discharge high.

    摘要翻译： 一种用于二次电池的负极，其包括衍生自具有圆周，上端和下端面的中间相沥青的磨碎石墨纤维，所述研磨石墨纤维各自由具有空隙的石墨层组成，用作锂离子的入口和出口， 所有圆周，上端和下端面都具有石墨层之间的空隙的开口，用作锂离子的入口或出口。 用于二次电池的负极可以用于提供具有大的充放电容量的非水电解质的锂二次电池，并且允许将充电或放电的电流密度设定得高。

    Lithium ion secondary battery
    6.
    发明授权
    Lithium ion secondary battery 失效
    锂离子二次电池

    公开(公告)号：US5612155A

    公开(公告)日：1997-03-18

    申请号：US489747

    申请日：1995-06-13

    申请人： Norio Takami ,  Takahisa Ohsaki ,  Yoshiaki Asami

    发明人： Norio Takami ,  Takahisa Ohsaki ,  Yoshiaki Asami

    IPC分类号： C01B31/02 ,  C01B31/04 ,  D01F9/145 ,  D01F11/12 ,  H01M4/587 ,  H01M4/66 ,  H01M6/10 ,  H01M10/05 ,  H01M10/0566 ,  H01M4/02

    CPC分类号： H01M4/133 ,  D01F11/129 ,  D01F9/145 ,  H01M10/0525 ,  H01M4/1393 ,  H01M10/0569 ,  H01M6/10

    摘要： A lithium ion secondary battery improved in large-current discharge characteristics, discharge capacity, and cycle life is disclosed. This lithium ion secondary battery includes a positive electrode, a negative electrode comprising a collector and carbon fibers held to the collector for absorbing and desorbing lithium ions, a separator arranged between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The carbon fibers have a radial orientation from an axis of the fibers, and 50 vol % or more of all carbon fibers are arranged such that an angle between an axis of each carbon fiber and a surface of the collector is 45.degree. or less.

    摘要翻译： 公开了一种改善了大电流放电特性，放电容量和循环寿命的锂离子二次电池。 该锂离子二次电池包括正极，包含集电体的负极和用于吸收和解吸锂离子的集电体的碳纤维，配置在正极和负极之间的隔板和非水电解质。 碳纤维具有从纤维的轴线的径向取向，并且所有碳纤维的50体积％以上排列成使得碳纤维的轴线与集电体的表面之间的角度为45度以下。

    Non-aqueous electrolyte secondary battery
    8.
    发明授权
    Non-aqueous electrolyte secondary battery 失效
    非水电解质二次电池

    公开(公告)号：US5272022A

    公开(公告)日：1993-12-21

    申请号：US766203

    申请日：1991-09-27

    申请人： Norio Takami ,  Takahisa Ohsaki ,  Norihito Kurisu ,  Kuniaki Inada

    发明人： Norio Takami ,  Takahisa Ohsaki ,  Norihito Kurisu ,  Kuniaki Inada

    IPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/52 ,  H01M4/525 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/36 ,  H01M10/40

    CPC分类号： H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/525 ,  H01M4/131 ,  H01M4/133

    摘要： A nonaqueous electrolyte secondary battery having an enhanced capacity and a long charge/discharge cycle life is disclosed. The nonaqueous electrolyte secondary battery comprises a positive electrode housed in a case and containing a chalcogen compound as an active material, a negative electrode arranged in the case such that a separator is sandwiched between the positive and negative electrodes and containing a carbonaceous material as an active material that absorbs and discharges lithium ions and a nonaqueous electrolyte contained in the case and prepared by dissolving 0.5 mol/l to 1.5 mol/l of electrolytic salt selected from the group consisting of LiPF.sub.6, LiBF.sub.4, LiAsF.sub.6 and LiCF.sub.3 SO.sub.3 in a solvent mixture comprising at least one first nonaqueous solvent selected from the group consisting of noncyclic carbonate, cyclic carbonate, .gamma.-butyrolactone and acetonitrile and at least one second nonaqueous solvent containing selected from the group consisting of 1,2-diethoxyethane, 1,2-dimethoxyethane, 1,2-ethoxymethoxyethane, 1,3-dimethoxypropane, diethylether and tetrahydrofurane, the amount of said second nonaqueous solvent in the solvent mixture being so determined that the mol ratio ([S]/[Li]) of the second nonaqueous solvent [S]to lithium ions [Li]is 0.5 to 3.

    Nonaqueous electrolyte secondary battery
    10.
    发明授权
    Nonaqueous electrolyte secondary battery 失效
    非水电解质二次电池

    公开(公告)号：US07727676B2

    公开(公告)日：2010-06-01

    申请号：US11454925

    申请日：2006-06-19

    申请人： Norio Takami ,  Hiroyuki Hasebe ,  Takahisa Ohsaki ,  Motoya Kanda

    发明人： Norio Takami ,  Hiroyuki Hasebe ,  Takahisa Ohsaki ,  Motoya Kanda

    IPC分类号： H01M1/40

    CPC分类号： H01M10/0587 ,  H01M2/0275 ,  H01M2/168 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/587 ,  H01M4/80 ,  H01M6/10 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2002/0297 ,  H01M2010/4292 ,  H01M2300/004 ,  Y02E60/122

    摘要： The present invention provides a nonaqueous electrolyte secondary battery, comprising an electrode group including a positive electrode, a negative electrode including a material for absorbing-desorbing lithium ions, and a separator arranged between the positive electrode and the negative electrode, a nonaqueous electrolyte impregnated in the electrode group and including a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, and a jacket for housing the electrode group and having a thickness of 0.3 mm or less, wherein the nonaqueous solvent γ-butyrolactone in an amount larger than 50% by volume and not larger than 95% by volume based on the total amount of the nonaqueous solvent.

    摘要翻译： 本发明提供一种非水电解质二次电池，其包括具有正极的电极组，包含锂离子吸收解吸材料的负极和设置在正极和负极之间的隔板，非水电解质浸渍在 所述电极组包括溶解在所述非水溶剂中的非水溶剂和锂盐，以及用于容纳所述电极组并具有0.3mm以下的厚度的护套，其中所述非水溶剂的γ-丁内酯的量大于50％ 以体积计，不大于95体积％。