利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

159 条记录 (耗时 0.029 秒)

    Method of controlling charge and discharge of non-aqueous electrolyte secondary cell
    3.
    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

    申请人： Akira Kinoshita ,  Shingo Tode ,  Yasufumi Takahashi ,  Hiroyuki Fujimoto ,  Ikuro Nakane ,  Shin Fujitani

    发明人： Akira Kinoshita ,  Shingo Tode ,  Yasufumi Takahashi ,  Hiroyuki Fujimoto ,  Ikuro Nakane ,  Shin Fujitani

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

    CPC分类号： H02J7/0031 ,  H01M4/131 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/42 ,  H01M10/44 ,  H01M10/448 ,  H02J2007/004

    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。

    Method of increasing charge-discharge capacity of nonaqueous electrolyte secondary battery
    8.
    发明申请
    Method of increasing charge-discharge capacity of nonaqueous electrolyte secondary battery 审中-公开
    提高非水电解质二次电池充放电容量的方法

    公开(公告)号：US20090208846A1

    公开(公告)日：2009-08-20

    申请号：US12385710

    申请日：2009-04-16

    申请人： Yasufumi Takahashi ,  Hiroyuki Fujimoto ,  Akira Kinoshita ,  Toyoki Fujihara ,  Shingo Tode ,  Ikuro Nakane ,  Shin Fujitani

    发明人： Yasufumi Takahashi ,  Hiroyuki Fujimoto ,  Akira Kinoshita ,  Toyoki Fujihara ,  Shingo Tode ,  Ikuro Nakane ,  Shin Fujitani

    IPC分类号： H01M4/58

    CPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/525 ,  H01M10/0525

    摘要： Method of increasing charge-discharge capacity of a nonaqueous electrolyte secondary battery including a positive electrode containing a positive active material, a negative electrode containing a negative active material other than metallic lithium and a nonaqueous electrolyte. The battery is charged at an end-of-charge voltage of at least 4.3V. The positive active material includes lithium cobaltate in which Zr and Mg are contained by mixing their source materials in the preparation of the positive active material by a heat treatment, the Zr and Mg being contained in the lithium cobaltate in a total amount of not greater than 3 mole %, the Zr after heat treatment being present as particles of a Zr-containing compound that are sintered with particle surfaces of the lithium cobaltate, and the Zr being detected in the particles of the Zr-containing compound but not in the lithium cobaltate particles.

    摘要翻译： 提高包含正极活性物质的正极，含有金属锂以外的负极活性物质的负极和非水电解质的非水电解质二次电池的充放电容量的提高方法。 电池充电至少为4.3V的充电电压。 正极活性物质包括通过热处理将其原料混合在正极活性物质的制备中而含有Zr和Mg的钴酸锂，所述钴酸锂中所含的Zr和Mg的总量不大于 3摩尔％，热处理后的Zr作为与钴酸锂的粒子表面烧结的含Zr化合物的颗粒存在，Zr在含Zr化合物的颗粒中检测而不在钴酸锂中 粒子。