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    Method of increasing charge-discharge capacity of nonaqueous electrolyte secondary battery
    74.
    发明申请
    Method of increasing charge-discharge capacity of nonaqueous electrolyte secondary battery 审中-公开
    提高非水电解质二次电池充放电容量的方法

    公开(公告)号：US20090208846A1

    公开(公告)日：2009-08-20

    申请号：US12385710

    申请日：2009-04-16

    申请人： Yasufumi Takahashi ,  Hiroyuki Fujimoto ,  Akira Kinoshita ,  Toyoki Fujihara ,  Shingo Tode ,  Ikuro Nakane ,  Shin Fujitani

    发明人： Yasufumi Takahashi ,  Hiroyuki Fujimoto ,  Akira Kinoshita ,  Toyoki Fujihara ,  Shingo Tode ,  Ikuro Nakane ,  Shin Fujitani

    IPC分类号： H01M4/58

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

    摘要： Method of increasing charge-discharge capacity of a nonaqueous electrolyte secondary battery including a positive electrode containing a positive active material, a negative electrode containing a negative active material other than metallic lithium and a nonaqueous electrolyte. The battery is charged at an end-of-charge voltage of at least 4.3V. The positive active material includes lithium cobaltate in which Zr and Mg are contained by mixing their source materials in the preparation of the positive active material by a heat treatment, the Zr and Mg being contained in the lithium cobaltate in a total amount of not greater than 3 mole %, the Zr after heat treatment being present as particles of a Zr-containing compound that are sintered with particle surfaces of the lithium cobaltate, and the Zr being detected in the particles of the Zr-containing compound but not in the lithium cobaltate particles.

    摘要翻译： 提高包含正极活性物质的正极，含有金属锂以外的负极活性物质的负极和非水电解质的非水电解质二次电池的充放电容量的提高方法。 电池充电至少为4.3V的充电电压。 正极活性物质包括通过热处理将其原料混合在正极活性物质的制备中而含有Zr和Mg的钴酸锂，所述钴酸锂中所含的Zr和Mg的总量不大于 3摩尔％，热处理后的Zr作为与钴酸锂的粒子表面烧结的含Zr化合物的颗粒存在，Zr在含Zr化合物的颗粒中检测而不在钴酸锂中 粒子。

    NONAQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    75.
    发明申请
    NONAQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    用于二次电池和非电解电解质二次电池的非电解电解质

    公开(公告)号：US20080070123A1

    公开(公告)日：2008-03-20

    申请号：US11939697

    申请日：2007-11-14

    申请人： Noriyuki Tamura ,  Toshikazu Yoshida ,  Maruo Kamino ,  Shin Fujitani ,  Masahiro Takehara ,  Makoto Ue

    发明人： Noriyuki Tamura ,  Toshikazu Yoshida ,  Maruo Kamino ,  Shin Fujitani ,  Masahiro Takehara ,  Makoto Ue

    IPC分类号： H01M10/40

    CPC分类号： H01M4/133 ,  H01M4/04 ,  H01M4/0404 ,  H01M4/0419 ,  H01M4/0426 ,  H01M4/0428 ,  H01M4/0438 ,  H01M4/0452 ,  H01M4/1391 ,  H01M4/64 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

    摘要： A nonaqueous electrolyte secondary battery in which the decomposition of an electrolyte solution is reduced exhibits high coulombic efficiency and excellent charge and discharge cycle performance, and has high energy density. This nonaqueous electrolyte secondary battery includes a negative electrode that is formed by depositing a thin film of active material on a collector by a CVD method, sputtering, evaporation, thermal spraying, or plating, wherein the thin film of the active material can lithiate and delithiate and is divided into columns by cracks formed in the thickness direction, and the bottom of each column is adhered to the collector; a positive electrode that can lithiate and delithiate; and a nonaqueous electrolyte solution containing a lithium salt in a nonaqueous solvent. The electrolyte solution contains a compound expressed by a general formula (I). (wherein, R1, R2, and R3 are hydrogen atoms or alkyl groups each optionally having a substituent, may be identical or different from one another, may be independent substituents, or may be bound together to form a ring)

    摘要翻译： 其中电解液的分解降低的非水电解质二次电池显示出高的库仑效率和优异的充放电循环性能，并且具有高的能量密度。 该非水电解质二次电池包括通过CVD法，溅射法，蒸镀法，热喷镀法或电镀法将活性物质薄膜沉积在集电体上形成的负极，其中活性物质的薄膜可以锂化和脱锂 并通过在厚度方向上形成的裂纹分成列，并且每列的底部粘附到集电体; 可以锂化和脱锂的正极; 以及在非水溶剂中含有锂盐的非水电解液。 电解质溶液含有由通式（I）表示的化合物。 （其中，R 1，R 2，R 3和R 3是氢原子或各自任选具有取代基的烷基可以相同或不同 彼此可以是独立的取代基，或者可以结合在一起形成环）