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    • 2. 发明授权
    • Lithium ion secondary battery
    • 锂离子二次电池
    • US08486549B2
    • 2013-07-16
    • US12600391
    • 2008-07-18
    • Kazuyoshi HondaToshitada SatoDaisuke SuetsuguKatsumi KashiwagiKunihiko Bessho
    • Kazuyoshi HondaToshitada SatoDaisuke SuetsuguKatsumi KashiwagiKunihiko Bessho
    • H01M6/10H01M4/58
    • H01M10/0525H01M4/0421H01M4/131H01M4/134H01M4/1391H01M4/1395H01M4/386H01M4/387H01M4/485H01M10/446
    • A lithium ion secondary battery including: a positive electrode current collector; a positive electrode active material layer that is provided in contact with the positive electrode current collector; a separator layer that is provided on a side of the positive electrode active material layer on which the positive electrode current collector is not provided; a negative electrode active material layer that is provided on a side of the separator layer on which the positive electrode active material layer is not provided, that primarily contains silicon or tin, and that includes a opposing portion opposing the positive electrode active material layer and a non-opposing portion not opposing the positive electrode active material layer, the opposing portion and the non-opposing portion containing lithium produced by a thin film-forming method; and a negative electrode current collector that is provided on a side of the negative electrode active material layer on which the separator layer is not provided. Thereby, deformation of the negative electrode and deterioration in cycle characteristics accompanied by such deformation can be prevented.
    • 1.一种锂离子二次电池,包括:正极集电体; 设置为与正极集电体接触的正极活性物质层; 设置在不设置正极集电体的正极活性物质层的一侧的隔离层; 设置在不设置正极活性物质层的隔板层的一侧的负极活性物质层,其主要含有硅或锡,并且包括与正极活性物质层相对的相对部分和 不与正极活性物质层相对的非相对部分,相对部分和非相对部分含有通过薄膜形成方法生产的锂; 以及负极集电体,其设置在不设置隔板层的负极活性物质层的一侧。 由此,可以防止负极的变形和伴随这种变形的循环特性的劣化。
    • 3. 发明申请
    • LITHIUM ION SECONDARY BATTERY
    • 锂离子二次电池
    • US20100167112A1
    • 2010-07-01
    • US12600391
    • 2008-07-18
    • Kazuyoshi HondaToshitada SatoDaisuke SuetsuguKatsumi KashiwagiKunihiko Bessho
    • Kazuyoshi HondaToshitada SatoDaisuke SuetsuguKatsumi KashiwagiKunihiko Bessho
    • H01M6/10H01M4/58
    • H01M10/0525H01M4/0421H01M4/131H01M4/134H01M4/1391H01M4/1395H01M4/386H01M4/387H01M4/485H01M10/446
    • A lithium ion secondary battery including: a positive electrode current collector; a positive electrode active material layer that is provided in contact with the positive electrode current collector; a separator layer that is provided on a side of the positive electrode active material layer on which the positive electrode current collector is not provided; a negative electrode active material layer that is provided on a side of the separator layer on which the positive electrode active material layer is not provided, that primarily contains silicon or tin, and that includes a opposing portion opposing the positive electrode active material layer and a non-opposing portion not opposing the positive electrode active material layer, the opposing portion and the non-opposing portion containing lithium produced by a thin film-forming method; and a negative electrode current collector that is provided on a side of the negative electrode active material layer on which the separator layer is not provided. Thereby, deformation of the negative electrode and deterioration in cycle characteristics accompanied by such deformation can be prevented.
    • 1.一种锂离子二次电池,包括:正极集电体; 设置为与正极集电体接触的正极活性物质层; 设置在不设置正极集电体的正极活性物质层的一侧的隔离层; 设置在不设置正极活性物质层的隔板层的一侧的负极活性物质层,其主要含有硅或锡,并且包括与正极活性物质层相对的相对部分和 不与正极活性物质层相对的非相对部分,相对部分和非相对部分含有通过薄膜形成方法生产的锂; 以及负极集电体,其设置在不设置隔板层的负极活性物质层的一侧。 由此,可以防止负极的变形和伴随这种变形的循环特性的劣化。
    • 6. 发明授权
    • Negative electrode for non-aqueous electrolyte secondary battery, method for producing the same, and non-aqueous electrolyte secondary battery
    • 非水电解质二次电池用负极及其制造方法以及非水电解质二次电池
    • US08389156B2
    • 2013-03-05
    • US12303854
    • 2007-08-22
    • Katsumi KashiwagiKazuyoshi HondaMasaki HasegawaMasaya UgajiYasutaka KogetsuShuji Ito
    • Katsumi KashiwagiKazuyoshi HondaMasaki HasegawaMasaya UgajiYasutaka KogetsuShuji Ito
    • H01M4/02
    • H01M4/13H01M4/386H01M4/40H01M4/70H01M10/0525H01M2004/025H01M2004/027
    • This invention provides a negative electrode and a non-aqueous electrolyte secondary battery including the negative electrode. The negative electrode includes a Li-absorbing element as a negative electrode active material, is free from deformation, separation of the negative electrode active material layer from the negative electrode current collector, and deposition of lithium on the negative electrode current collector, and is excellent in cycle characteristic, large-current discharge characteristic, and low-temperature discharge characteristic.The negative electrode of this invention includes: a current collector having depressions and protrusions on a surface in the thickness direction thereof; and a negative electrode active material layer that includes a plurality of columns containing a negative electrode active material that absorbs and releases lithium ions, the columns being grown outwardly from the surface of the current collector. The negative electrode of this invention is characterized in that the columns are grown at an inclination angle relative to the direction perpendicular to the surface of the current collector, and that the inclination angle of the columns changes reversibly depending on absorption and release of lithium ions by the negative electrode active material.
    • 本发明提供一种负极和含有负极的非水电解质二次电池。 负极包括作为负极活性物质的Li吸收元件,没有变形,负极活性物质层与负极集电体分离,并且在负极集电体上沉积锂,并且优异 循环特性,大电流放电特性和低温放电特性。 本发明的负极包括:在其厚度方向的表面上具有凹陷和突起的集电器; 以及包含吸收和释放锂离子的负极活性物质的多个列的负极活性物质层,所述列从集电体的表面向外生长。 本发明的负极的特征在于,柱相对于与集电体的表面垂直的方向以倾斜角度生长,并且柱的倾斜角随着锂离子的吸收和释放而可逆地变化 负极活性物质。
    • 9. 发明申请
    • LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME
    • 锂离子二次电池及其制造方法
    • US20110318621A1
    • 2011-12-29
    • US13254111
    • 2011-01-12
    • Kunihiko MineyaKatsumi Kashiwagi
    • Kunihiko MineyaKatsumi Kashiwagi
    • H01M10/0587H01M10/36
    • H01M10/0431H01M2/08H01M10/0409H01M10/0525H01M10/0587Y10T29/49108
    • An electrode assembly (30) is formed by combining a positive electrode plate (14), a separator (15), and a negative electrode plate (18), and the electrode assembly (30) was wound. An insulating member (21) having a hollow portion (22) is placed on the positive electrode plate (14), the negative electrode plate (18), or the separator (15) before the end of the winding step so that the insulating member (21) is incorporated inside the outermost of the electrode assembly (30) and into a corner portion (31) of the electrode assembly (30) in the winding direction. After a winding end portion (32) of the electrode assembly (30) is fixed, the hollow portion (22) is broken. Thereby, a space (20) resulting from the hollow portion (22) is formed inside the outermost of the electrode assembly (30).
    • 通过组合正电极板(14),隔板(15)和负极板(18)形成电极组件(30),并缠绕电极组件(30)。 具有中空部分(22)的绝缘构件(21)被放置在正极板(14),负极板(18)或隔板(15)之前,在卷绕步骤结束之前,绝缘构件 (21)在电极组件(30)的最外侧并入电极组件(30)的沿着卷绕方向的角部(31)内。 在电极组件(30)的卷绕端部(32)固定之后,中空部分(22)被破坏。 由此,在电极组件(30)的最外侧形成由中空部(22)形成的空间(20)。