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    • 32. 发明申请
    • Negative Electrode Material for Non-Aqueous Electrolyte Secondary Battery, Process for Producing the Same, Negative Electrode, and Non-Aqueous Electrolyte Secondary Battery
    • 用于非水电解质二次电池的负电极材料,其制造方法,负电极和非水电解质二次电池
    • US20090297953A1
    • 2009-12-03
    • US11991628
    • 2006-09-05
    • Kazuhiko ShimizuAisaku Nagai
    • Kazuhiko ShimizuAisaku Nagai
    • H01M4/58H01B1/00
    • H01M4/587H01M4/133H01M10/0525Y02E60/122Y02P70/54Y02T10/7011
    • A negative electrode material for non-aqueous electrolyte secondary batteries, which is best suited for large current I/O non-aqueous electrolyte secondary batteries represented by those for hybrid electric vehicles (HEVs), which are unlikely to be influenced by the deterioration of battery characteristics due to water, and a production process thereof are provided.The negative electrode material having at least one exothermic peak in the range of not lower than 650° C. and lower than 700° C., and at least one exothermic peak in the range of not lower than 700° C. and lower than 760° C., in differential thermal analysis measured under an air flow. The production process of the negative electrode material for non-aqueous electrolyte secondary batteries is characterized by carbonizing a negative electrode material precursor having an oxygen content of not less than 5% by weight and less than 10% by weight, under an inert gas flow at a rate of not more than 120 ml/g·h, under a pressure of normal pressure to 10 kPa, at a temperature higher than 1100° C. and lower than 1500° C.
    • 用于非水电解质二次电池的负极材料,其最适合用于混合电动车辆(HEV)的那些代表的大电流I / O非水电解质二次电池,其不太可能受电池劣化的影响 提供了水的特性及其制造方法。 所述负极材料具有不低于650℃且低于700℃的至少一个放热峰,并且至少一个放热峰在不低于700℃且低于760的范围内 °C,在气流下测量的差热分析。 非水电解质二次电池用负极材料的制造方法的特征在于,在惰性气体流动下,将含氧量不小于5重量%且小于10重量%的负极材料前体碳化 在常压至10kPa的压力下,在高于1100℃和低于1500℃的温度下,速率不超过120ml / gh。