Method of controlling charge and discharge of non-aqueous electrolyte secondary cell
    98.
    发明授权
    Method of controlling charge and discharge of non-aqueous electrolyte secondary cell 有权
    控制非水电解质二次电池充放电的方法

    公开(公告)号:US08253386B2

    公开(公告)日:2012-08-28

    申请号:US10934705

    申请日:2004-09-07

    IPC分类号: H02J7/00 H03K17/28 H01M4/13

    摘要: Capacity degradation due to charge/discharge cycles is suppressed in either a non-aqueous electrolyte secondary cell provided with a positive electrode including, as a positive electrode active material, a lithium-transition metal complex oxide having a layered structure and containing at least Ni and Mn as transition metals, and a negative electrode containing a carbon material as a negative electrode active material and having a higher initial charge-discharge efficiency than that of the positive electrode, or an assembled battery having a plurality of cells each of which is the secondary cell. A control circuit incorporated in the secondary cell or the assembled battery, or in an apparatus using the secondary cell or the assembled battery, monitors the voltage of the secondary cell or each of the cells in the assembled battery so that the end-of-discharge voltage of each cell is 2.9 V or higher.

    摘要翻译: 在具有正极的非水电解质二次电池中,由于充电/放电循环而导致的容量劣化被抑制,所述正极包括作为正极活性物质的具有层状结构且至少含有Ni的锂 - 过渡金属复合氧化物 Mn作为过渡金属,以及含有作为负极活性物质的碳材料并且具有比正极更高的初始充放电效率的负极,或具有多个电池的组电池,每个电池均为次级 细胞。 集成在二次电池或组电池中的控制电路,或者在使用二次电池或组电池的装置中,监视蓄电池中的二次电池或各电池的电压,使得放电终止 每个电池的电压为2.9V或更高。