Lithium secondary battery
    1.
    发明申请
    Lithium secondary battery 审中-公开
    锂二次电池

    公开(公告)号:US20050106464A1

    公开(公告)日:2005-05-19

    申请号:US10991927

    申请日:2004-11-19

    摘要: Charge-discharge cycle performance is improved in a lithium secondary battery that uses a material that occludes lithium by alloying with lithium as its negative electrode active material. A lithium secondary battery comprises a negative electrode having a negative electrode active material thin film provided on a negative electrode current collector, a positive electrode including a positive electrode active material, and a non-aqueous electrolyte, in which the negative electrode active material is a material that occludes lithium by alloying with lithium, the ratio of the discharge capacity per unit area of the negative electrode to the discharge capacity per unit area of the positive electrode is from 1.5 to 3, and the ratio of the thickness (μm) of the negative electrode active material to the arithmetical mean roughness Ra (μm) of the surface of the negative electrode current collector is 50 or less.

    摘要翻译: 锂二次电池的充放电循环性能得到改善,该锂二次电池使用通过与锂合金化作为其负极活性材料来吸收锂的材料。 锂二次电池包括具有设置在负极集电体上的负极活性物质薄膜的负极,包含正极活性物质的正极和非水电解质,其中负极活性物质为 通过与锂合金吸收锂的材料,负极单位面积的放电容量与正极单位面积的放电容量之比为1.5〜3, 负极活性物质与负极集电体表面的算术平均粗糙度Ra(mum)为50以下。

    Nonaqueous electrolyte solution for secondary battery and nonaqueous electrolyte secondary battery
    4.
    发明授权
    Nonaqueous electrolyte solution for secondary battery and nonaqueous electrolyte secondary battery 失效
    二次电池和非水电解质二次电池用非水电解液

    公开(公告)号:US08323839B2

    公开(公告)日:2012-12-04

    申请号:US11234239

    申请日:2005-09-26

    IPC分类号: H01M6/04

    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). Rn-M=0  (I) (wherein, Rs are alkyl groups 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; M is S or P; and n is 2 when M is S and is 3 when M is P).

    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。 Rn-M = 0(I)(其中,R 5是任选具有取代基的烷基可以相同或不同,可以是独立的取代基,或者可以结合在一起形成环; M是S或P; 当M为S时n为2,M为P时为3)。

    Lithium secondary battery
    5.
    发明授权
    Lithium secondary battery 有权
    锂二次电池

    公开(公告)号:US07767344B2

    公开(公告)日:2010-08-03

    申请号:US11091942

    申请日:2005-03-29

    IPC分类号: H01M4/40 H01M4/70 H01M4/58

    摘要: A lithium secondary battery includes a negative electrode, a positive electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode current collector (3b) having an irregular surface and a negative electrode active material layer (3a) formed on the surface. In the lithium secondary battery, the negative electrode active material layer (3a) is composed of a material that alloys with Li; thickness of the negative electrode active material layer (3a) (μm)/10-point mean surface roughness Rz of the negative electrode current collector (3b) (μm) is in the range of from 0.5 to 4; and tensile strength of the negative electrode current collector (3b) (N/mm2) at 25° C.×the negative electrode current collector base thickness (mm)/thickness of the negative electrode active material layer (3a) (μm) on one side of current collector is 2 or greater.

    摘要翻译: 锂二次电池包括负极,正极和非水电解质。 负极包括具有不规则表面的负极集电体(3b)和形成在表面上的负极活性物质层(3a)。 在锂二次电池中,负极活性物质层(3a)由与Li合金的材料构成; 负极活性物质层(3a)的厚度(μm)/负极集电体(3b)的10点平均表面粗糙度Rz(μm)在0.5〜4的范围内; 和负极集电体(3b)的拉伸强度(N / mm2)(25℃)×负极集电体基底厚度(mm)/负极活性物质层(3a)的厚度(μm) 集电极侧为2个以上。

    Nonaqueous electrolyte solution for secondary battery and nonaqueous electrolyte secondary battery
    6.
    发明申请
    Nonaqueous electrolyte solution for secondary battery and nonaqueous electrolyte secondary battery 审中-公开
    二次电池和非水电解质二次电池用非水电解液

    公开(公告)号:US20060035155A1

    公开(公告)日:2006-02-16

    申请号:US11234336

    申请日:2005-09-26

    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, and R2, 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,R 3,R 3,R 3,R 3,R 3,R 3,R 3,R 3和R 4各自为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)

    Nonaqueous electrolyte solution for secondary battery and nonaqueous electrolyte secondary battery
    7.
    发明申请
    Nonaqueous electrolyte solution for secondary battery and nonaqueous electrolyte secondary battery 审中-公开
    二次电池和非水电解质二次电池用非水电解液

    公开(公告)号:US20060024586A1

    公开(公告)日:2006-02-02

    申请号:US11234339

    申请日:2005-09-26

    IPC分类号: H01M10/40 H01M4/58

    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, X represents a perfluoroalkyl group having 1 to 3 fluorine atoms or carbon atoms, and 2n Xs may be identical or different from one another. n is an integer of 1 or more.)

    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,X表示氟原子或碳原子数1〜3的全氟烷基,2n X可以相同或不同,n为1以上的整数。

    NONAQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    8.
    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)

    Nonaqueous electrolyte solution for secondary battery and nonaqueous electrolyte secondary battery
    9.
    发明申请
    Nonaqueous electrolyte solution for secondary battery and nonaqueous electrolyte secondary battery 失效
    二次电池和非水电解质二次电池用非水电解液

    公开(公告)号:US20060024587A1

    公开(公告)日:2006-02-02

    申请号:US11234239

    申请日:2005-09-26

    IPC分类号: H01M4/58

    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). Rn-M=0   (I) (wherein, Rs are alkyl groups 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; M is S or P; and n is 2 when M is S and is 3 when M is P.)

    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。 <?in-line-formula description =“In-line Formulas”end =“lead”?> R -M = 0(I)<?in-line-formula description =“In- (其中,R 5为任选具有取代基的烷基可以相同或不同)可以是独立的取代基,或者可以结合在一起形成环; M是S或 P;当M为S时n为2,M为P时为3)

    Lithium secondary battery and method for manufacturing the same
    10.
    发明授权
    Lithium secondary battery and method for manufacturing the same 有权
    锂二次电池及其制造方法

    公开(公告)号:US09413010B2

    公开(公告)日:2016-08-09

    申请号:US13636811

    申请日:2011-03-24

    摘要: Provided is a lithium secondary battery in which negative-electrode active material particles containing silicon and/or a silicon alloy are used and which prevents the occurrence of breakage of a binder itself and peel-off of the binder at the interfaces with the negative-electrode active material and the negative-electrode current collector and has a high energy density and an excellent cycle characteristic. The lithium secondary battery includes: a negative electrode in which a negative-electrode active material layer including negative-electrode active material particles containing silicon and/or a silicon alloy and a binder is formed on a surface of electrically conductive metal foil serving as a negative-electrode current collector; a positive electrode; and a nonaqueous electrolyte, wherein the binder contains a polyimide resin including a crosslinked structure formed by imidization of a hexavalent or higher-valent carboxylic acid or an anhydride thereof with a diamine.

    摘要翻译: 提供一种锂二次电池,其中使用含有硅和/或硅合金的负极活性物质颗粒,并且防止粘合剂本身的破裂发生和粘合剂在与负极的界面处的剥离 活性物质和负极集电体,具有高能量密度和优异的循环特性。 锂二次电池包括:在作为负极的导电性金属箔的表面上形成有负极活性物质层的负极,负极活性物质层包含含有硅和/或硅合金的负极活性物质粒子和粘合剂 电极集电器; 正极; 和非水电解质,其中所述粘合剂含有通过将六价或更高价羧酸或其酸酐与二胺酰亚胺化而形成的交联结构的聚酰亚胺树脂。