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    Battery structure reducing lithium deposition
    1.
    发明授权
    Battery structure reducing lithium deposition 有权

    公开(公告)号：US11316215B2

    公开(公告)日：2022-04-26

    申请号：US16785982

    申请日：2020-02-10

    Applicant: DENSO CORPORATION

    Inventor： Yuta Shimonishi ,  Shuhei Yoshida ,  Daisuke Shibata ,  Hiroyoshi Yamamoto

    IPC: H01M10/613 ,  H01M10/617 ,  H01M10/6557 ,  H01M10/0525 ,  H01M10/647 ,  H01M50/20

    Abstract: A battery structure includes a plurality of batteries each made of lithium-ion secondary battery; and a plurality of arrangement portions in which the plurality of batteries are arranged. The plurality of arrangement portions are divided into two groups of: a upper heat transfer group having heat transfer orders higher than a center value of the heat transfer orders, where the heat transfer orders are respective amount of heat transfer from the batteries being ranked in descending order; and a lower heat transfer group having the heat transfer orders lower than the center value. A battery among the plurality of batteries showing the highest value of a lithium deposition tolerance which represents a degree of lithium being unlikely to deposit during charge/discharge operation, is disposed in a high tolerance arrangement portion in the plurality of arrangement portions, the high tolerance arrangement portion belonging to the upper heat transfer group.

    Electrode And Non-Aqueous Electrolyte Secondary Battery
    4.
    发明申请
    Electrode And Non-Aqueous Electrolyte Secondary Battery 审中-公开
    电极和非水电解质二次电池

    公开(公告)号：US20160211515A1

    公开(公告)日：2016-07-21

    申请号：US14994247

    申请日：2016-01-13

    Applicant: DENSO CORPORATION

    Inventor： Koji Ohira ,  Daisuke Shibata ,  Shuhei Yoshida ,  Keita Takahashi

    IPC: H01M4/36 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/58

    CPC classification number: H01M4/366 ,  H01M4/136 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/0525

    Abstract: An electrode includes an electrode material, which includes: a core part made of an active substance having a polyanion structure having Mn; and a shell part obtained by covering a surface of the core part with carbon. In addition, an amount of water, as measured by Karl Fischer's method when the electrode is held at 250° C. for 40 minutes after adsorbed water is volatilized by heating, is 1500 ppm or less.

    Abstract translation: 电极包括电极材料，其包括：由具有Mn的聚阴离子结构的活性物质制成的芯部; 以及通过用碳覆盖芯部的表面而获得的壳部。 此外，当电极在吸附水后在250℃下保持40分钟时，通过卡尔·费休法测量的水量通过加热而挥发为1500ppm或更少。

    Positive-Electrode Active Material, Manufacturing Method Of The Same, And Nonaqueous Electrolyte Rechargeable Battery Having The Same
    6.
    发明申请
    Positive-Electrode Active Material, Manufacturing Method Of The Same, And Nonaqueous Electrolyte Rechargeable Battery Having The Same 审中-公开
    正极活性物质及其制造方法，以及具有该正极活性物质的非水电解质可充电电池

    公开(公告)号：US20140065480A1

    公开(公告)日：2014-03-06

    申请号：US14012186

    申请日：2013-08-28

    Applicant: DENSO CORPORATION

    Inventor： Shuhei Yoshida ,  Daisuke Shibata

    IPC: H01M4/133 ,  H01M4/131

    CPC classification number: H01M4/133 ,  H01M2/0222 ,  H01M4/131 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/052 ,  H01M2220/30

    Abstract: A positive-electrode active material for a non-aqueous electrolyte rechargeable battery includes a core portion and a shell portion. The core portion includes at least one of an inorganic oxide having a polyanionic structure and an inorganic compound oxide having a polyanionic structure and including a carbon. The shell portion includes a carbon and covers the core portion. The positive-electrode active material has a property that indicates a continuous pore distribution curve in a graph where a horizontal axis represents a pore diameter and a vertical axis represents a log differentiation pore volume. The positive-electrode active material is manufactured by wet-cracking the inorganic oxide or the inorganic compound oxide with an organic acid solution, and sintering a cracked substance in an inert atmosphere.

    Abstract translation: 用于非水电解质可再充电电池的正极活性材料包括芯部和壳部。 核心部分包括具有聚阴离子结构的无机氧化物和具有聚阴离子结构并包括碳的无机复合氧化物中的至少一种。 壳部包括碳并覆盖芯部。 正极活性物质具有表示纵轴表示孔径且纵轴表示对数分解孔体积的曲线图中的连续孔分布曲线的性质。 正极活性物质通过有机酸溶液将无机氧化物或无机复合氧化物进行湿式裂化，并在惰性气氛中烧结破裂物质来制造。

    Assembled battery
    8.
    发明授权
    Assembled battery 有权
    组装电池

    公开(公告)号：US09455480B2

    公开(公告)日：2016-09-27

    申请号：US14451767

    申请日：2014-08-05

    Applicant: DENSO CORPORATION

    Inventor： Shuhei Yoshida ,  Daisuke Shibata

    IPC: H02J7/00 ,  H01M10/44 ,  H01M10/48 ,  G01R31/36 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/58 ,  H01M10/42

    CPC classification number: H01M10/441 ,  G01R31/362 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/482 ,  H01M2010/4271 ,  H01M2220/20 ,  H02J7/0016 ,  H02J7/0073 ,  H02J7/008 ,  Y02E60/122 ,  Y02T10/7011 ,  Y02T10/7055

    Abstract: An assembled battery includes a plurality of secondary cells, a first arithmetic operator, a second arithmetic operator, and a discharger. The first arithmetic operator calculates a voltage change rate of each of the secondary cells during charging/discharging thereof. The second arithmetic operator determines a discharge condition for each of the secondary cells from the voltage change rate calculated in the first arithmetic operator and a state of charge of each of the secondary cells. The discharger performs discharging of each of the secondary cells on the basis of the discharge condition when the assembled battery is neither being charged nor being discharged. The second arithmetic operator determines the discharge condition of each of the secondary cells such that each of the secondary cells after the discharging has the same state of charge.

    Abstract translation: 组合电池包括多个二次电池，第一算术运算器，第二算术运算器和放电器。 第一算术运算器计算每个二次电池在其充电/放电期间的电压变化率。 第二算术运算器根据在第一算术运算器中计算的电压变化率和每个二次电池的电荷状态来确定每个二次电池的放电条件。 当组电池既不充电也不放电时，放电器基于放电条件执行每个二次电池的放电。 第二算术运算器确定每个二次电池的放电条件，使得放电之后的每个二次电池具有相同的充电状态。

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