NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    92.
    发明申请
    NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
    用于非水电解质二次电池的负极,其制造方法和非水电解质二次电池

    公开(公告)号:US20100129711A1

    公开(公告)日:2010-05-27

    申请号:US12303854

    申请日:2007-08-22

    IPC分类号: H01M4/02 H01M4/04 B05D5/12

    摘要: 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.

    摘要翻译: 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。

    ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY COMPRISING SUCH ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    93.
    发明申请
    ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY COMPRISING SUCH ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
    非电解电解质二次电池用电极,其制造方法以及包含该电极用于非电解电解质二次电池的非水电解质二次电池

    公开(公告)号:US20090117462A1

    公开(公告)日:2009-05-07

    申请号:US11994562

    申请日:2007-02-12

    IPC分类号: H01M4/48 B05D5/12

    摘要: An electrode for a non-aqueous electrolyte secondary battery 6 according to the present invention includes: a current collector 3; a first active material layer 2 formed on the current collector 3; and a second active material layer 5 provided on the first active material layer 2, the second active material layer 5 including a plurality of active material particles 4. The plurality of active material particles 4 is mainly of a chemical composition represented as SiOx(0≦x x). The area in which the first active material layer 2 is in contact with the plurality of active material particles 4 is smaller than the area in which the current collector 3 is in contact with the first active material layer 2.

    摘要翻译: 本发明的非水电解质二次电池用电极6具备:集电体3, 形成在集电体3上的第一活性物质层2; 以及设置在第一活性物质层2上的第二活性物质层5,包含多个活性物质粒子4的第二活性物质层5.多个活性物质粒子4主要由SiOx(0 < = x <1.2)。 第一活性物质层2主要是以SiO y(1.0 <= y <2.0,y> x)表示的化学组成。 第一活性物质层2与多个活性物质粒子4接触的区域比集电体3与第一活性物质层2接触的面积小。

    Energy device and method for producing the same
    96.
    发明申请
    Energy device and method for producing the same 审中-公开
    能量装置及其制造方法

    公开(公告)号:US20050118504A1

    公开(公告)日:2005-06-02

    申请号:US10985543

    申请日:2004-11-10

    摘要: An auxiliary film-forming source containing a main component element of a collector and a negative active material film-forming source for forming a negative active material thin film are placed adjacent to each other so that parts of film-forming particles from the respective sources are mixed with each other. The collector is moved relatively from the auxiliary film-forming source side to the negative active material film-forming source side, whereby a negative active material thin film containing silicon as a main component is formed on the collector by a vacuum film-forming process. A composition gradient layer, in which a composition distribution of a main component element of the collector and silicon constituting the negative active material is varied smoothly, is formed at the interface between the negative active material thin film and the collector. Even when the silicon particles in the negative active material expand/contract during charging/discharging, the composition gradient layer alleviates the strain involved in the expansion/contraction of the silicon particles, so that peeling at the interface between the negative active material thin film and the collector is suppressed, and the adhesion strength is enhanced. Consequently, cycle characteristics are enhanced.

    摘要翻译: 包含集电体的主要成分元素的辅助成膜源和用于形成负极活性物质薄膜的负极活性物质成膜源彼此相邻放置,使得来自各个源的成膜颗粒的部分为 相互混合 集电体从辅助成膜源侧相对移动到负极活性物质成膜源侧,由此通过真空成膜工艺在集电体上形成含有硅作为主要成分的负极活性物质薄膜。 在负极活性物质薄膜和集电体之间的界面处形成组成梯度层,其中集电体的主要成分元素的组成分布和构成负极活性物质的硅平滑地变化。 即使当负极活性物质中的硅颗粒在充电/放电期间膨胀/收缩时,组成梯度层也减轻了涉及硅颗粒膨胀/收缩的应变,从而在负极活性物质薄膜和 集电体被抑制,粘合强度提高。 因此,循环特性得到提高。

    Deposition quantity measuring apparatus, deposition quantity measuring method, and method for manufacturing electrode for electrochemical element
    98.
    发明授权
    Deposition quantity measuring apparatus, deposition quantity measuring method, and method for manufacturing electrode for electrochemical element 有权
    沉积量测量装置,沉积量测量方法和用于制造电化学元件的电极的方法

    公开(公告)号:US09028922B2

    公开(公告)日:2015-05-12

    申请号:US13384928

    申请日:2010-07-02

    摘要: A manufacturing method according to the present invention includes a step of allowing lithium to deposit on a substrate provided with a layer capable of forming a compound together with lithium. A first beta ray and a second beta ray are emitted toward the substrate for irradiation before the deposition step to measure backscattering, from the substrate, of the first beta ray and the second beta ray. The first beta ray and the second beta ray are emitted toward the substrate for irradiation after the deposition step to measure backscattering, from the substrate, of the first beta ray and the second beta ray. A decrement in backscattering of the first beta ray before and after lithium deposition and a decrement in backscattering of the second beta ray before and after lithium deposition are calculated. The deposition step is controlled depending on the decrement in the backscattering of the first beta ray and the decrement in the backscattering of the second beta ray.

    摘要翻译: 根据本发明的制造方法包括允许锂沉积在具有与锂一起形成化合物的层的基材上的步骤。 在沉积步骤之前,向衬底发射第一个β射线和第二个β射线,以便从衬底测量第一个β射线和第二个β射线的反向散射。 第一β射线和第二β射线在沉积步骤之后朝向衬底发射用于照射,以测量来自衬底的第一β射线和第二β射线的后向散射。 计算在锂沉积之前和之后第一次β射线的后向散射减少以及在锂沉积之前和之后的第二次β射线的后向散射的减小。 沉积步骤根据第一β射线的反向散射的减小和第二β射线的后向散射的减量来控制。

    Electricity storage device
    99.
    发明授权
    Electricity storage device 有权
    蓄电装置

    公开(公告)号:US08614019B2

    公开(公告)日:2013-12-24

    申请号:US12466112

    申请日:2009-05-14

    IPC分类号: H01M4/13

    摘要: Disclosed is an electricity storage device which can be charged/discharged at high rate and have high output, high capacity and excellent repeating charge/discharge characteristics, although it uses a non-carbon material as a negative electrode active material. Specifically disclosed is an electricity storage device comprising: a positive electrode collector; a positive electrode disposed on the positive electrode collector and including a positive electrode active material which can reversibly absorb/desorb at least anions; a negative electrode collector; and a negative electrode disposed on the negative electrode collector and including a negative electrode active material which can substantially absorb/desorb lithium ions reversibly. The negative electrode active material is composed of at least one substance selected from the group consisting of silicon, a silicon-containing alloy, a silicon compound, tin, a tin-containing alloy, and a tin compound; and the negative electrode is formed as a thin film having a thickness of 10 μm or less.

    摘要翻译: 公开了尽管使用非碳材料作为负极活性物质,但是可以高速率充放电且具有高输出,高容量和优异的重复充电/放电特性的蓄电装置。 具体公开了一种蓄电装置,其特征在于,包括:正极集电体; 正电极,设置在所述正极集电体上,并且包括可以可逆地吸收/解吸至少阴离子的正极活性物质; 负极集电体; 和设置在负极集电体上的负极,其具有能够可逆地实质上吸收/解吸锂离子的负极活性物质。 负极活性物质由选自硅,含硅合金,硅化合物,锡,含锡合金和锡化合物的至少一种物质构成; 并且负极形成为厚度为10μm以下的薄膜。

    Lithium ion secondary battery
    100.
    发明授权
    Lithium ion secondary battery 失效
    锂离子二次电池

    公开(公告)号:US08486549B2

    公开(公告)日:2013-07-16

    申请号:US12600391

    申请日:2008-07-18

    IPC分类号: H01M6/10 H01M4/58

    摘要: 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.

    摘要翻译: 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。