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    • 4. 发明授权
    • Non-aqueous electrolyte secondary battery with high capacity and good life characteristics
    • 非水电解质二次电池具有容量大,寿命长的特点
    • US08435675B2
    • 2013-05-07
    • US11795801
    • 2006-03-23
    • Takayuki ShiraneTakashi TakeuchiTakaya Saito
    • Takayuki ShiraneTakashi TakeuchiTakaya Saito
    • H01M4/13
    • H01M4/131H01M4/485H01M4/525H01M4/587H01M4/62H01M10/0525H01M10/4235H01M2010/4292
    • Disclosed is a non-aqueous electrolyte secondary battery comprising a positive electrode containing a nickel-containing lithium composite oxide, a negative electrode containing graphite, and a non-aqueous electrolyte. The cut-off voltage of charge of this non-aqueous electrolyte secondary battery is 4.25 to 4.6 V. The negative electrode contains an additive that reacts with lithium at a potential higher than the potential of graphite. The ratio A/B of a positive electrode capacity A based on the weight of the nickel-containing lithium composite oxide and the cut-off voltage of charge relative to a weight B of the graphite contained in a portion of a negative electrode material mixture layer opposing to a positive electrode material mixture layer is 300 to 340 mAh/g, and the irreversible capacity C of the positive electrode and the irreversible capacity D of the negative electrode in the portion opposing to the positive electrode satisfies C≧D.
    • 公开了一种非水电解质二次电池,其包含含有镍的锂复合氧化物的正极,含有石墨的负极和非水电解质。 该非水电解质二次电池的电荷截止电压为4.25〜4.6V。负极含有与石墨的电位高的电位与锂反应的添加剂。 基于含镍锂复合氧化物的重量的正极容量A的比A / B和电荷相对于负极材料混合层的一部分中所含的石墨的重量B的截止电压 与正极合剂层相对的面积为300〜340mAh / g,正极的不可逆容量C和负极的与正极相反的部分的不可逆容量D满足C> = D。
    • 5. 发明申请
    • Non-Aqueous Electrolyte Secondary Battery
    • 非水电解液二次电池
    • US20080118837A1
    • 2008-05-22
    • US11795801
    • 2005-03-23
    • Takayuki ShiraneTakashi TakeuchiTakaya Saito
    • Takayuki ShiraneTakashi TakeuchiTakaya Saito
    • H01M4/52H01M4/58
    • H01M4/131H01M4/485H01M4/525H01M4/587H01M4/62H01M10/0525H01M10/4235H01M2010/4292
    • Disclosed is a non-aqueous electrolyte secondary battery comprising a positive electrode containing a nickel-containing lithium composite oxide, a negative electrode containing graphite, and a non-aqueous electrolyte. The cut-off voltage of charge of this non-aqueous electrolyte secondary battery is 4.25 to 4.6 V. The negative electrode contains an additive that reacts with lithium at a potential higher than the potential of graphite. The ratio A/B of a positive electrode capacity A based on the weight of the nickel-containing lithium composite oxide and the cut-off voltage of charge relative to a weight B of the graphite contained in a portion of a negative electrode material mixture layer opposing to a positive electrode material mixture layer is 300 to 340 mAh/g, and the irreversible capacity C of the positive electrode and the irreversible capacity D of the negative electrode in the portion opposing to the positive electrode satisfies C≧D.
    • 公开了一种非水电解质二次电池,其包含含有镍的锂复合氧化物的正极,含有石墨的负极和非水电解质。 该非水电解质二次电池的电荷截止电压为4.25〜4.6V。负极含有与石墨的电位高的电位与锂反应的添加剂。 基于含镍锂复合氧化物的重量的正极容量A的比A / B和电荷相对于负极材料混合层的一部分中所含的石墨的重量B的截止电压 与正极合剂层相对的面积为300〜340mAh / g,正极的不可逆容量C和负极的与正极相反的部分的不可逆容量D满足C> = D。