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    • 2. 发明授权
    • Positive electrode for non-aqueous electrolyte secondary batteries and non-aqueous electrolyte secondary battery
    • 非水电解质二次电池用正极和非水电解质二次电池
    • US09112209B2
    • 2015-08-18
    • US13383791
    • 2011-03-18
    • Kazuki EndoMasato Fujikawa
    • Kazuki EndoMasato Fujikawa
    • H01M4/131H01M4/62H01M10/0525H01M10/0587
    • H01M4/131H01M4/621H01M10/0525H01M10/0587Y02E60/122Y02P70/54
    • Disclosed is a positive electrode for non-aqueous electrolyte secondary batteries, the positive electrode including a positive electrode material mixture layer which includes positive electrode active material particles and a binder. A curve representing a correlation between a distance from a current collector in the thickness direction of the positive electrode material mixture layer and an amount of the binder has a first maximum point, a minimum point, and a second maximum point. The minimum point corresponds to a position in a center area of the positive electrode material mixture layer in a thickness direction thereof, and the first and second maximum points correspond to a position nearer the current collector and a position further away from the current collector than the position corresponding to the minimum point, respectively. A ratio W1/W2 of an amount W1 at the first maximum point to an amount W2 at the minimum point of the binder per 100 parts by weight of the positive electrode active material particles is greater than 2.
    • 公开了一种非水电解质二次电池用正极,所述正极具有包含正极活性物质粒子和粘合剂的正极合剂层。 表示正极复合层的厚度方向上的集电体的距离与粘合剂的量之间的相关性的曲线具有第一最大点,最小点和第二最大点。 最小点对应于正极复合材料层在其厚度方向的中心区域中的位置,并且第一和第二最大点对应于更靠近集电器的位置和远离集电器的位置比 分别对应于最小点的位置。 相对于正极活性物质粒子100重量份,第一最大点处的量W1与粘合剂的最小点的量W2的比W1 / W2大于2。
    • 3. 发明申请
    • NONAQUEOUS ELECTROLYTE SECONDARY CELL
    • 非电解电解质二次电池
    • US20140302366A1
    • 2014-10-09
    • US14343198
    • 2012-09-14
    • Yasunari SugitaKazuki EndoTatsuya IshibashiMasato Fujikawa
    • Yasunari SugitaKazuki EndoTatsuya IshibashiMasato Fujikawa
    • H01M2/26H01M10/0587
    • H01M2/263H01M4/70H01M10/0587Y02E60/122
    • A nonaqueous electrolyte secondary battery includes: an electrode group including a positive electrode plate, a negative electrode plate, and a separator. The positive and negative electrode plates are wound with the separator interposed therebetween. The positive electrode plate includes a first current collector exposed portion where a portion of the positive electrode current collector corresponding to an outermost portion of the electrode group is exposed over a length of greater than or equal to one turn in a winding direction of the electrode group, and a second current collector exposed portion where a portion of the positive electrode current collector corresponding to a middle portion of the electrode group is exposed over a length of greater than or equal to one turn in the winding direction. A positive electrode lead is provided on the second current collector exposed portion so as to be connected to an external electrode.
    • 非水电解质二次电池包括:包括正极板,负极板和隔膜的电极组。 正极板和负极板之间夹有隔膜。 正极板包括:第一集电体露出部,其中对应于电极组的最外部分的正极集电体的一部分在电极组的卷绕方向上暴露在大于或等于一匝的长度上 以及第二集电体露出部,其中与电极组的中间部对应的正极集电体的一部分在卷绕方向上暴露在大于或等于一匝的长度上。 正极引线设置在第二集电体露出部分上,以连接到外部电极。
    • 5. 发明授权
    • Nonaqueous electrolyte secondary cell
    • 非水电解质二次电池
    • US09520588B2
    • 2016-12-13
    • US14343198
    • 2012-09-14
    • Yasunari SugitaKazuki EndoTatsuya IshibashiMasato Fujikawa
    • Yasunari SugitaKazuki EndoTatsuya IshibashiMasato Fujikawa
    • H01M10/0587H01M2/26H01M4/70
    • H01M2/263H01M4/70H01M10/0587Y02E60/122
    • A nonaqueous electrolyte secondary battery includes: an electrode group including a positive electrode plate, a negative electrode plate, and a separator. The positive and negative electrode plates are wound with the separator interposed therebetween. The positive electrode plate includes a first current collector exposed portion where a portion of the positive electrode current collector corresponding to an outermost portion of the electrode group is exposed over a length of greater than or equal to one turn in a winding direction of the electrode group, and a second current collector exposed portion where a portion of the positive electrode current collector corresponding to a middle portion of the electrode group is exposed over a length of greater than or equal to one turn in the winding direction. A positive electrode lead is provided on the second current collector exposed portion so as to be connected to an external electrode.
    • 非水电解质二次电池包括:包括正极板,负极板和隔膜的电极组。 正极板和负极板之间夹有隔膜。 正极板包括:第一集电体露出部,其中对应于电极组的最外部分的正极集电体的一部分在电极组的卷绕方向上暴露在大于或等于一匝的长度上 以及第二集电体露出部,其中与电极组的中间部对应的正极集电体的一部分在卷绕方向上暴露在大于或等于一匝的长度上。 正极引线设置在第二集电体露出部分上,以连接到外部电极。
    • 6. 发明授权
    • Lithium ion secondary battery
    • 锂离子二次电池
    • US09048490B2
    • 2015-06-02
    • US14131400
    • 2012-04-26
    • Tatsuya IshibashiKazuki EndoYasunari SugitaMasato Fujikawa
    • Tatsuya IshibashiKazuki EndoYasunari SugitaMasato Fujikawa
    • H01M2/14H01M2/18H01M2/34H01M10/0587H01M10/0525H01M2/26
    • H01M2/34H01M2/26H01M10/0525H01M10/0587Y02E60/122Y02T10/7011
    • A lithium ion secondary battery includes an electrode group formed by winding a positive electrode having a positive electrode current collector and a positive electrode active material layer, and a negative electrode having a negative electrode current collector and a negative electrode active material layer, with a separator interposed between the electrodes. A wound positive electrode current collector exposing section faces a wound negative electrode current collector exposing section with the separator interposed therebetween, thereby forming a heteropolar electrode current collector facing zone corresponding to at least one turn in the electrode group. A unipolar electrode current collector facing zone, in which adjacent portions of the wound current collector exposing section or the wound current collector exposing section face each other directly or with the separator interposed therebetween corresponds to at least one turn in the electrode group.
    • 锂离子二次电池包括通过将具有正极集电体和正极活性物质层的正极和具有负极集电体和负极活性物质层的负极卷绕而形成的电极组,隔膜 插在电极之间。 卷绕的正极集电体露出部分面对卷绕的负极集电体曝光部分,其间插入隔板,从而形成对应于电极组中的至少一个匝的异极电极集电器面对区域。 单极电极集电体面对区域,其中,绕组集电体露出部分或卷绕集电体露出部分的相邻部分直接面对或与其间隔开的分隔板相对应于电极组中的至少一个匝。
    • 8. 发明申请
    • LITHIUM ION SECONDARY BATTERY
    • 锂离子二次电池
    • US20140147715A1
    • 2014-05-29
    • US14131400
    • 2012-04-26
    • Tatsuya IshibashiKazuki EndoYasunari SugitaMasato Fujikawa
    • Tatsuya IshibashiKazuki EndoYasunari SugitaMasato Fujikawa
    • H01M2/34
    • H01M2/34H01M2/26H01M10/0525H01M10/0587Y02E60/122Y02T10/7011
    • A lithium ion secondary battery includes an electrode group formed by winding a positive electrode having a positive electrode current collector and a positive electrode active material layer, and a negative electrode having a negative electrode current collector and a negative electrode active material layer, with a separator interposed between the electrodes. A wound positive electrode current collector exposing section faces a wound negative electrode current collector exposing section with the separator interposed therebetween, thereby forming a heteropolar electrode current collector facing zone corresponding to at least one turn in the electrode group. A unipolar electrode current collector facing zone, in which adjacent portions of the wound current collector exposing section or the wound current collector exposing section face each other directly or with the separator interposed therebetween corresponds to at least one turn in the electrode group.
    • 锂离子二次电池包括通过卷绕具有正极集电体和正极活性物质层的正极以及具有负极集电体和负极活性物质层的负极而形成的电极组,隔膜 插在电极之间。 卷绕的正极集电体露出部分面对卷绕的负极集电体曝光部分,其间插入隔板,从而形成对应于电极组中的至少一个匝的异极电极集电器面对区域。 单极电极集电体面对区域,其中,绕组集电体露出部分或卷绕集电体露出部分的相邻部分直接面对或与其间隔开的分隔板相对应于电极组中的至少一个匝。
    • 9. 发明申请
    • POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    • 非电解电解质二次电池和非水电解质二次电池的正极
    • US20120121955A1
    • 2012-05-17
    • US13383791
    • 2011-03-18
    • Kazuki EndoMasato Fujikawa
    • Kazuki EndoMasato Fujikawa
    • H01M4/131H01M10/36
    • H01M4/131H01M4/621H01M10/0525H01M10/0587Y02E60/122Y02P70/54
    • Disclosed is a positive electrode for non-aqueous electrolyte secondary batteries, the positive electrode including a positive electrode material mixture layer which includes positive electrode active material particles and a binder. A curve representing a correlation between a distance from a current collector in the thickness direction of the positive electrode material mixture layer and an amount of the binder has a first maximum point, a minimum point, and a second maximum point. The minimum point corresponds to a position in a center area of the positive electrode material mixture layer in a thickness direction thereof, and the first and second maximum points correspond to a position nearer the current collector and a position further away from the current collector than the position corresponding to the minimum point, respectively. A ratio W1/W2 of an amount W1 at the first maximum point to an amount W2 at the minimum point of the binder per 100 parts by weight of the positive electrode active material particles is greater than 2.
    • 公开了一种非水电解质二次电池用正极,所述正极具有包含正极活性物质粒子和粘合剂的正极合剂层。 表示正极复合层的厚度方向上的集电体的距离与粘合剂的量之间的相关性的曲线具有第一最大点,最小点和第二最大点。 最小点对应于正极复合材料层在其厚度方向的中心区域中的位置,并且第一和第二最大点对应于更靠近集电器的位置和远离集电器的位置比 分别对应于最小点的位置。 相对于正极活性物质粒子100重量份,第一最大点处的量W1与粘合剂的最小点的量W2的比W1 / W2大于2。