NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME, AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    11.
    发明申请
    NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME, AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
    用于非水电解质二次电池的负极,非电解电解质二次电池及其制造用于非水电解质二次电池的负极的方法

    公开(公告)号:US20110244328A1

    公开(公告)日:2011-10-06

    申请号:US13132549

    申请日:2009-12-17

    摘要: There is provided a negative electrode for a nonaqueous electrolyte secondary battery in which when a battery is formed, the energy density is high, and moreover, the decrease in charge and discharge capacity is small even if charge and discharge are repeated. By using silicon oxide particles having a particle diameter in a particular range as a starting raw material, and heating these particles in the range of 850° C. to 1050° C., Si microcrystals are deposited on the surfaces of the particles. Then, by performing doping of Li, a structure comprising a plurality of protrusions having height and cross-sectional area in a particular range is formed on the surfaces. The average value of the height of the above protrusions is 2% to 19% of the average particle diameter of the above lithium-containing silicon oxide particles. By using the lithium-containing silicon oxide particles obtained by the above means as a negative electrode active material, a negative electrode for a nonaqueous electrolyte secondary battery is fabricated.

    摘要翻译: 提供了一种非水电解质二次电池的负极,其中当形成电池时,能量密度高,此外,即使重复进行充放电,充电和放电容量的降低也很小。 通过使用具有特定范围的粒径的氧化硅粒子作为起始原料,并将这些粒子加热到850℃〜1050℃的范围内,在微粒的表面上淀积Si微晶。 然后,通过进行Li的掺杂,在表面上形成包括具有特定范围的高度和横截面积的多个突起的结构。 上述突起的高度的平均值为上述含锂二氧化硅粒子的平均粒径的2〜19%。 通过使用通过上述方法获得的含锂氧化硅颗粒作为负极活性材料,制造了非水电解质二次电池用负极。

    NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    12.
    发明申请
    NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    用于二次电池的负极及其制造方法和非电解电解质二次电池

    公开(公告)号:US20130244086A1

    公开(公告)日:2013-09-19

    申请号:US13820369

    申请日:2011-08-25

    IPC分类号: H01M4/62 H01M4/66

    摘要: Provided are a negative electrode for a secondary battery realizing satisfactory cycle characteristics and a method for manufacturing the same, and a nonaqueous electrolyte secondary battery having satisfactory cycle characteristics. A negative electrode for a secondary battery formed by bonding a negative electrode active material to a negative electrode collector with a negative electrode binder, in which the negative electrode binder is a polyimide or a polyamide-imide, and the negative electrode collector is a Cu alloy containing at least one metal (a) selected from the group consisting of Sn, In, Mg and Ag and has a conductivity of 50 IACS % or more. The negative electrode for a secondary battery can be manufactured by a method including forming a negative electrode layer containing the negative electrode active material and the precursor of the negative electrode binder on the negative electrode collector; and bonding the negative electrode active material to the negative electrode collector with the negative electrode binder by curing the precursor of the negative electrode binder at 250 to 350° C.

    摘要翻译: 提供一种实现令人满意的循环特性的二次电池用负极及其制造方法以及具有令人满意的循环特性的非水电解质二次电池。 通过将负极活性物质与负极粘合剂(负极粘合剂为聚酰亚胺或聚酰胺 - 酰亚胺)结合的负极活性物质形成的负极,负极集电体为Cu合金 含有选自Sn,In,Mg和Ag中的至少一种金属(a),并且具有50IACS%以上的导电率。 可以通过在负极集电体上形成含有负极活性物质的负极层和负极活性物质的前体的方法来制造二次电池用负极; 并通过在250-350℃固化负极粘合剂的前体,将负极活性物质与负极粘合剂结合。

    NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME
    14.
    发明申请
    NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME 审中-公开
    非电解电解质二次电池及其制造方法

    公开(公告)号:US20110274966A1

    公开(公告)日:2011-11-10

    申请号:US13145055

    申请日:2010-01-19

    IPC分类号: H01M10/05 H01M2/08 H01M2/02

    摘要: An exemplary embodiment of the invention provides a nonaqueous electrolytic solution secondary battery in which capacity deterioration associated with a charge/discharge cycle at a high temperature (45° C. or higher) can be prevented. An exemplary embodiment of the invention is a nonaqueous electrolytic solution secondary battery, comprising an electrode element in which a cathode and an anode are stacked, a nonaqueous electrolytic solution which contains at least one of carbonate solvent, and a gel in an outer packaging body; wherein the anode comprises a silicon oxide represented by SiOx (0

    摘要翻译: 本发明的一个示例性实施方案提供了一种非水电解液二次电池,其中可以防止与高温(45℃或更高)的充放电循环相关的容量劣化。 本发明的一个示例性实施方案是一种非水电解液二次电池,包括其中堆叠阴极和阳极的电极元件,在外包装体中含有至少一种碳酸酯溶剂和凝胶的非水电解液; 其中所述阳极包括由SiO x(0

    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    15.
    发明申请
    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非电解电解质二次电池

    公开(公告)号:US20130280594A1

    公开(公告)日:2013-10-24

    申请号:US13977895

    申请日:2011-01-18

    IPC分类号: H01M4/134

    摘要: In a nonaqueous electrolyte secondary battery using silicon and silicon oxide as a negative electrode active material, the charge and discharge cycle characteristics are improved. A nonaqueous electrolyte secondary battery in the exemplary embodiment comprises a sheet-shaped negative electrode comprising a negative electrode active material layer comprising a composite of silicon and silicon oxide formed on a negative electrode current collector, and a sheet-shaped positive electrode comprising a positive electrode active material layer formed on a positive electrode current collector, wherein the negative electrode is disposed opposed to the positive electrode via a separator, a peripheral edge portion of the negative electrode active material layer is disposed within a peripheral edge portion of the positive electrode active material layer, and a relationship of 1.00

    摘要翻译: 在使用硅和氧化硅作为负极活性物质的非水电解质二次电池中,充放电循环特性得到改善。 本实施方式的非水电解质二次电池包括由在负极集电体上形成的由硅和氧化硅构成的复合体的负极活性物质层和包含正极集电体的片状正极的片状负极, 形成在正极集电体上的活性物质层,其中,所述负极经由隔膜与所述正极配置成相对,所述负极活性物质层的周缘部配置在所述正极活性物质的周缘部 当正极的充电容量为a,负极的充电容量为b,b / a = c时,满足1.00

    METHOD FOR DOPING AND DEDOPING LITHIUM INTO AND FROM NEGATIVE ELECTRODE AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY
    18.
    发明申请
    METHOD FOR DOPING AND DEDOPING LITHIUM INTO AND FROM NEGATIVE ELECTRODE AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY 有权
    用于将锂离子和负极电极掺入和掺入的方法和用于生产用于锂二次电池的负极的方法

    公开(公告)号:US20140076729A1

    公开(公告)日:2014-03-20

    申请号:US14114948

    申请日:2012-04-06

    IPC分类号: H01M4/04 H01M4/485

    摘要: The object of an exemplary embodiment of the invention is to provide a negative electrode having excellent cycle property. An exemplary embodiment of the invention a method for doping and dedoping lithium for the first time after a negative electrode for a lithium secondary battery comprising silicon oxide as an active material is produced, comprising doping the lithium within the following current value range (A) and within the following doped amount range (B); current value range (A): a range of a current value in which a doped amount in which only one peak appears at 1 V or less on the V-dQ/dV curve becomes maximum, wherein the V-dQ/dV curve represents a relationship between voltage V of the negative electrode with respect to a lithium reference electrode and dQ/dV that is a ratio of variation dQ of lithium dedoped amount Q in the negative electrode to variation dV of the voltage V, and doped amount range (B): a range of a doped amount in which only one peak appears at 1 V or less on the V-dQ/dV curve.

    摘要翻译: 本发明的示例性实施方案的目的是提供具有优异的循环性能的负极。 本发明的一个示例性实施方案是制备在包含氧化硅作为活性材料的锂二次电池的负极之后首次掺杂和去掺杂锂的方法,包括在随后的电流值范围(A)和 在下面的掺杂量范围(B)内; 电流值范围(A):其中在V-dQ / dV曲线上仅出现1V或更小的一个峰值的掺杂量的电流值的范围变得最大,其中V-dQ / dV曲线表示 负极的电压V与锂参比电极之间的关系和作为负极中的脱锂量Q的变化量dQ与电压V的变化dV的比的dQ / dV以及掺杂量范围(B) :在V-dQ / dV曲线上只有一个峰出现在1V或更小的掺杂量的范围。

    Method for doping and dedoping lithium into and from negative electrode and method for producing negative electrode for lithium secondary battery
    19.
    发明授权
    Method for doping and dedoping lithium into and from negative electrode and method for producing negative electrode for lithium secondary battery 有权
    从负极中掺杂和去掺杂锂的方法和用于生产锂二次电池的负极的方法

    公开(公告)号:US09123928B2

    公开(公告)日:2015-09-01

    申请号:US14114948

    申请日:2012-04-06

    摘要: The object of an exemplary embodiment of the invention is to provide a negative electrode having excellent cycle property. An exemplary embodiment of the invention a method for doping and dedoping lithium for the first time after a negative electrode for a lithium secondary battery comprising silicon oxide as an active material is produced, comprising doping the lithium within the following current value range (A) and within the following doped amount range (B); current value range (A): a range of a current value in which a doped amount in which only one peak appears at 1 V or less on the V-dQ/dV curve becomes maximum, wherein the V-dQ/dV curve represents a relationship between voltage V of the negative electrode with respect to a lithium reference electrode and dQ/dV that is a ratio of variation dQ of lithium dedoped amount Q in the negative electrode to variation dV of the voltage V, and doped amount range (B): a range of a doped amount in which only one peak appears at 1 V or less on the V-dQ/dV curve.

    摘要翻译: 本发明的示例性实施方案的目的是提供具有优异的循环性能的负极。 本发明的一个示例性实施方案是制备在包含氧化硅作为活性材料的锂二次电池的负极之后首次掺杂和去掺杂锂的方法,包括在随后的电流值范围(A)和 在下面的掺杂量范围(B)内; 电流值范围(A):其中在V-dQ / dV曲线上仅出现1V或更小的一个峰值的掺杂量的电流值的范围变得最大,其中V-dQ / dV曲线表示 负极的电压V与锂参比电极之间的关系和作为负极中的脱锂量Q的变化量dQ与电压V的变化dV的比的dQ / dV以及掺杂量范围(B) :在V-dQ / dV曲线上只有一个峰出现在1V或更小的掺杂量的范围。