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    • 8. 发明授权
    • Nonaqueous electrolyte rechargeable battery, and negative electrode and material thereof
    • 非水电解质可充电电池及其负极及其材料
    • US08119287B2
    • 2012-02-21
    • US11914494
    • 2006-05-15
    • Yukihiro MiyamotoMasao MiyakeEtsuko Miyake, legal representativeTooru FuseTomohiro SatouYouji Arita
    • Yukihiro MiyamotoMasao MiyakeTooru FuseTomohiro SatouYouji Arita
    • H01M4/58H01M10/36
    • H01M4/58C23C14/3414H01M4/02H01M4/0426H01M4/0428H01M4/133H01M4/134H01M4/139H01M10/052H01M2004/027
    • A negative electrode material for a nonaqueous electrolyte rechargeable battery that can stably and efficiently realize a high-performance nonaqueous electrolyte rechargeable battery in which a high discharge capacity, high charge/discharge efficiency at an initial stage and during charge/discharge cycles, and excellent charge/discharge cycle properties are provided as well as electrode expansion in volume after charge/discharge cycles is suppressed. The negative electrode material for a nonaqueous electrolyte rechargeable battery in the form of particles having, at least on the surface thereof, a compound of the phase in which an element Z is present in Si in a non-equilibrium state. The compound is expressed by the general formula SiZxMy, where Z represents C and/or N, M represents an element other than C and N, and when the concentration of the element Z in a compound SiaZp, where each of a and p is an integer, having a composition closest to that of Si and present in an equilibrium state is presumed to be 100 atomic percent, the concentration of the element Z in the compound SiZxMy is in the range of 10 to 95 atomic percent, and y is in the range of 0 to 0.5.
    • 一种用于非水电解质可再充电电池的负极材料,其可以稳定有效地实现高放电容量,初始阶段和充电/放电循环期间的高充电/放电效率以及优异的电荷的高性能非水电解质可再充电电池 /放电循环特性以及充电/放电循环后的体积电极膨胀被抑制。 用于非水电解质可再充电电池的负极材料,其形式为至少在其表面上具有在非平衡态的Si中存在元素Z的相的化合物。 化合物由通式SiZxMy表示,其中Z表示C和/或N,M表示除C和N以外的元素,当化合物SiaZp中的元素Z的浓度,其中a和p各自为 具有最接近Si并且处于平衡状态的组成的整数被推定为100原子%,化合物SiZxMy中的元素Z的浓度在10至95原子%的范围内,并且y在 范围为0〜0.5。
    • 9. 发明申请
    • RECHARGEABLE BATTERY WITH NONAQUEOUS ELECTROLYTE, ITS NEGATIVE ELECTRODE, AND ITS MATERIAL
    • 可充电电池与非水电解质,负极电极及其材料
    • US20090181304A1
    • 2009-07-16
    • US11914494
    • 2006-05-15
    • Yukihiro MiyamotoMasao MiyakeEtsuko MiyakeTooru FuseTomohiro SatouYouji Arita
    • Yukihiro MiyamotoMasao MiyakeEtsuko MiyakeTooru FuseTomohiro SatouYouji Arita
    • H01M4/58H01M10/36
    • H01M4/58C23C14/3414H01M4/02H01M4/0426H01M4/0428H01M4/133H01M4/134H01M4/139H01M10/052H01M2004/027
    • A negative electrode material for a nonaqueous electrolyte rechargeable battery that can stably and efficiently realize a high-performance nonaqueous electrolyte rechargeable battery in which a high discharge capacity, high charge/discharge efficiency at an initial stage and during charge/discharge cycles, and excellent charge/discharge cycle properties are provided as well as electrode expansion in volume after charge/discharge cycles is suppressed. The negative electrode material for a nonaqueous electrolyte rechargeable battery in the form of particles having, at least on the surface thereof, a compound of the phase in which an element Z is present in Si in a non-equilibrium state. The compound is expressed by the general formula SiZxMy, where Z represents C and/or N, M represents an element other than C and N, and when the concentration of the element Z in a compound SiaZp, where each of a and p is an integer, having a composition closest to that of Si and present in an equilibrium state is presumed to be 100 atomic percent, the concentration of the element Z in the compound SiZxMy is in the range of 10 to 95 atomic percent, and y is in the range of 0 to 0.5.
    • 一种用于非水电解质可再充电电池的负极材料,其可以稳定有效地实现高放电容量,初始阶段和充电/放电循环期间的高充电/放电效率以及优异的电荷的高性能非水电解质二次电池 /放电循环特性以及充电/放电循环后的体积电极膨胀被抑制。 用于非水电解质可再充电电池的负极材料,其形式为至少在其表面上具有在非平衡态的Si中存在元素Z的相的化合物。 化合物由通式SiZxMy表示,其中Z表示C和/或N,M表示除C和N以外的元素,当化合物SiaZp中的元素Z的浓度,其中a和p各自为 具有最接近Si并且处于平衡状态的组成的整数被推定为100原子%,化合物SiZxMy中的元素Z的浓度在10至95原子%的范围内,并且y在 范围为0〜0.5。