Rechargeable lithium battery
    81.
    发明授权
    Rechargeable lithium battery 失效
    可充电锂电池

    公开(公告)号:US06319633B1

    公开(公告)日:2001-11-20

    申请号:US09503547

    申请日:2000-02-14

    IPC分类号: H01M1024

    摘要: A rechargeable lithium battery has a positive electrode, a negative electrode and a non-aqueous electrolyte. The active material of the positive or negative electrode is tungsten complex sulfide, either with or without addition of lithium thereto. The tungsten complex sulfide contains tungsten, sulfur and at least one transition metal selected from Cu, V, Cr, Mn, Fe, Co and Ni, and has substantially the same crystal structure as WS2.

    摘要翻译: 可再充电锂电池具有正极,负极和非水电解质。 正电极或负电极的活性材料是钨络合物硫化物,无论是否添加锂。 钨络合物硫化物含有钨,硫和选自Cu,V,Cr,Mn,Fe,Co和Ni中的至少一种过渡金属,并且具有与WS2基本相同的晶体结构。

    Non-aqueous electrolyte battery
    82.
    发明授权
    Non-aqueous electrolyte battery 有权
    非水电解液电池

    公开(公告)号:US08715860B2

    公开(公告)日:2014-05-06

    申请号:US10568420

    申请日:2005-02-14

    摘要: A non-aqueous battery with improved volume energy density and enhanced load characteristics is made available even when using olivine-type lithium phosphate as a positive electrode active material.The non-aqueous electrolyte battery of the present invention is provided with a positive electrode (1) containing lithium iron phosphate as a positive electrode active material, a negative electrode (2), and a non-aqueous electrolyte (4). In the positive electrode (1), a positive electrode active material-containing layer that is made of the positive electrode active material, a conductive agent, and a binder agent is formed on a positive electrode current collector. The positive electrode current collector has a thickness of less than 20 μm and its surface that is in contact with the positive electrode active material-containing layer has a mean surface roughness Ra of greater than 0.026.

    摘要翻译: 即使使用橄榄石型磷酸锂作为正极活性物质,也可以获得体积能量密度提高和负荷特性提高的非水电池。 本发明的非水电解质电池设有含有磷酸铁锂作为正极活性物质的正极(1),负极(2)和非水电解质(4)。 在正极(1)中,在正极集电体上形成由正极活性物质,导电剂和粘合剂构成的含正极活性物质的层。 正极集电体的厚度小于20μm,与正极活性物质含有层接触的表面的平均表面粗糙度Ra大于0.026。

    Non-aqueous electrolyte battery and method of manufacturing the same
    85.
    发明授权
    Non-aqueous electrolyte battery and method of manufacturing the same 失效
    非水电解质电池及其制造方法

    公开(公告)号:US08053112B2

    公开(公告)日:2011-11-08

    申请号:US11723184

    申请日:2007-03-16

    IPC分类号: H01M4/13 H01M4/60 H01M4/58

    摘要: A non-aqueous electrolyte secondary battery includes a positive electrode having a positive electrode active material layer containing a positive electrode active material, a negative electrode having a negative electrode active material, a separator interposed between the positive electrode and the negative electrode, an electrode assembly comprising the positive electrode, the negative electrode, and the separator, and a non-aqueous electrolyte impregnated in the electrode assembly. The positive electrode active material contains at least cobalt or manganese. The positive electrode has an end-of-charge potential of 4.40 V versus the potential of a lithium reference electrode. The positive electrode active material layer is superficially coated with a polymer layer composed of a polymer having a partially cross-linked structure and a molecular weight of 800,000 or greater.

    摘要翻译: 非水电解质二次电池包括具有含有正极活性物质的正极活性物质层的正极,具有负极活性物质的负极,插入正极和负极之间的隔膜,电极组件 包括正电极,负电极和隔膜,以及浸渍在电极组件中的非水电解质。 正极活性物质至少含有钴或锰。 正极具有4.40V的充电电位电位与锂参比电极的电位相关。 正极活性物质层由具有部分交联结构且分子量为80万以上的聚合物构成的聚合物层进行表面涂布。

    Method of increasing charge-discharge capacity of nonaqueous electrolyte secondary battery
    88.
    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

    IPC分类号: H01M4/58

    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
    90.
    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

    IPC分类号: H01M10/40

    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)