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    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME
    2.
    发明申请
    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME 审中-公开

    公开(公告)号：US20170346138A1

    公开(公告)日：2017-11-30

    申请号：US15531265

    申请日：2015-11-20

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hiroya UMEYAMA ,  Yukiyoshi UENO ,  Kaoru INOUE ,  Hideki SANO

    IPC: H01M10/0587 ,  H01M10/0525 ,  H01M10/04

    Abstract: A nonaqueous electrolyte secondary battery includes a wound electrode assembly in which a positive electrode having, at its one end in a width direction, a positive electrode exposed portion provided without a positive electrode mixture layer on a positive electrode current collector and a negative electrode are wound together, with a separator interposed therebetween. The positive electrode exposed portion protrudes outward in an axial direction of the wound electrode assembly relative to the separator and the negative electrode at one end in the axial direction of the wound electrode assembly. The negative electrode exposed portion protrudes outward in the axial direction of the wound electrode assembly relative to the separator and the positive electrode at the other end in the axial direction. The positive electrode exposed portion has a cutout portion at least in an outermost circumferential portion of the positive electrode.

    INSPECTION METHOD AND MANUFACTURING METHOD OF SECONDARY BATTERY
    3.
    发明申请
    INSPECTION METHOD AND MANUFACTURING METHOD OF SECONDARY BATTERY 审中-公开
    二次电池检测方法及制造方法

    公开(公告)号：US20170030975A1

    公开(公告)日：2017-02-02

    申请号：US15302650

    申请日：2015-03-19

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yukiyoshi UENO ,  Junko OHIRA

    IPC: G01R31/36

    CPC classification number: G01R31/3641 ,  G01R31/36 ,  G01R31/3679 ,  H01M10/058 ,  H01M10/0587

    Abstract: An inspection method of a secondary battery includes a charging step, an aging step, a pre-inspection discharge step, a voltage adjustment step, a self-discharge inspection step, and a deficiency determination step. A discharge condition in the pre-inspection discharge step is determined so that a voltage difference accumulation value Vs satisfies a predetermined range. The voltage difference accumulation value Vs is calculated by accumulating a value obtained by subtracting an output voltage from a predetermined voltage over a duration from start of the pre-inspection discharge step to end thereof.

    Abstract translation: 二次电池的检查方法包括充电步骤，老化步骤，预检放电步骤，电压调节步骤，自放电检查步骤和不足确定步骤。 确定预检查放电步骤中的放电条件，使得电压差积分值Vs满足预定范围。 通过累积通过从预检查放电步骤开始到结束的期间从预定电压减去输出电压而获得的值来计算电压差积分值Vs。

    IN-VEHICLE SYSTEM, METHOD, AND NON-TRANSITORY STORAGE MEDIUM
    5.
    发明公开
    IN-VEHICLE SYSTEM, METHOD, AND NON-TRANSITORY STORAGE MEDIUM 审中-公开

    公开(公告)号：US20230264597A1

    公开(公告)日：2023-08-24

    申请号：US18069303

    申请日：2022-12-21

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yukiyoshi UENO

    IPC: B60L58/18 ,  B60L58/12 ,  H02J7/00

    CPC classification number: B60L58/18 ,  B60L58/12 ,  H02J7/0013 ,  H02J7/0063

    Abstract: An in-vehicle system includes a first battery and a second battery respectively connected to a first load and a second load, a relay that connects the two batteries in parallel, and a processor configured to control turn-on and turn-off of the relay to control a state of electric power supply from the first and second batteries to the first and second loads, detect an abnormality in the first and second batteries, and determine a difference between physical quantities of the two batteries. The processor is further configured to, when detecting the abnormality in the first or second battery, turn off the relay, and when no longer detecting the abnormality in the first and second batteries after the relay is turned off, turn on the relay when the processor determines that the difference between the physical quantities of the two batteries satisfies a predetermined condition.

    LITHIUM-ION SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF
    6.
    发明申请
    LITHIUM-ION SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF 有权

    公开(公告)号：US20170162912A1

    公开(公告)日：2017-06-08

    申请号：US15039261

    申请日：2014-11-27

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yukiyoshi UENO ,  Tomoyuki MIZUNO ,  Kunimitsu YAMAMOTO ,  Junko OHIRA ,  Kaoru INOUE ,  Hideaki FUJITA ,  Hideki SANO

    IPC: H01M10/0587 ,  H01M10/04 ,  H01M4/587 ,  H01M4/70 ,  H01M4/1393 ,  H01M4/525 ,  H01M4/62 ,  H01M4/66 ,  H01M4/505 ,  H01M4/133

    Abstract: A lithium-ion secondary battery (100) includes a wound electrode body (80), a nonaqueous electrolyte, and a box-shaped case (50). The wound electrode body includes a positive electrode (10), a negative electrode (20), and a separator (40). The box-shaped case contains the wound electrode body and the nonaqueous electrolyte. The wound electrode body includes a starting-end-side negative electrode remainder portion (22) provided in a winding-direction starting end portion (81) of the wound electrode body. The winding-direction starting end portion exists at a winding center side. The starting-end-side negative electrode remainder portion protrudes toward the winding center side along a winding direction beyond the positive electrode. A surplus nonaqueous electrolyte exists in a gap between the wound electrode body and the box-shaped case. The starting-end-side negative electrode remainder portion is positioned in a region where the surplus nonaqueous electrolyte exists, when the lithium-ion secondary battery is disposed in a predetermined posture.

    LITHIUM-ION SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME
    7.
    发明申请
    LITHIUM-ION SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME 有权
    锂离子二次电池及其制造方法

    公开(公告)号：US20150194705A1

    公开(公告)日：2015-07-09

    申请号：US14589367

    申请日：2015-01-05

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yukiyoshi UENO ,  Hideki SANO ,  Kaoru INOUE ,  Hideaki FUJITA

    IPC: H01M10/0587 ,  H01M10/04 ,  H01M2/02 ,  H01M10/0525

    CPC classification number: H01M10/0587 ,  H01M2/0217 ,  H01M2/14 ,  H01M10/0431 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/49004 ,  Y10T29/49108

    Abstract: A lithium-ion secondary battery (10) includes a wound electrode assembly (40) having a positive electrode current collector foil (51) and a negative electrode current collector foil 61). An edge portion (52) of the positive electrode current collector foil (51) is exposed in a spiral form at one end of a winding axis (WL). An edge portion (62) of the negative electrode current collector foil (61) is exposed in a spiral form at the other end of the winding axis (WL). The spirally exposed edge portion (52) of the positive electrode current collector foil (51) is divided and gathered into a plurality of parts divided at at least one of a plurality of gaps (S), excluding a central portion (WC) containing the winding axis (WL), provided between wound layers of the positive electrode current collector foil (51) stacked in a direction orthogonal to the winding axis (WL). Likewise, the spirally exposed edge portion (62) of the negative electrode current collector foil (61) is divided and gathered into a plurality of parts divided at at least one of a plurality of gaps (S), excluding the central portion (WC) containing the winding axis (WL), provided between wound layers of the negative electrode current collector foil (61) stacked in a direction orthogonal to the winding axis (WL).

    Abstract translation: 锂离子二次电池（10）包括具有正极集电箔（51）和负极集电箔（61）的卷绕电极组件（40）。 正极集电箔（51）的边缘部分（52）在卷绕轴线（WL）的一端以螺旋形式露出。 负极集电箔（61）的边缘部（62）在卷绕轴线（WL）的另一端以螺旋形状露出。 正极集电箔51的螺旋状露出的边缘部52被分割成多个间隔（S）以外的多个部分，除了含有 卷绕轴线（WL），设置在与卷绕轴线（WL）正交的方向上堆叠的正极集电箔（51）的卷绕层之间。 同样，负极集电箔61的螺旋状露出的边缘部62被分割成除了中心部WC之外的多个间隙S中的至少一个间隔的多个部分， 设置在与卷绕轴线（WL）正交的方向上堆叠的负极集电体箔（61）的卷绕层之间的卷绕轴（WL）。

    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND BATTERY PACK
    9.
    发明申请
    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND BATTERY PACK 审中-公开
    非电解电解质二次电池和电池组

    公开(公告)号：US20160380299A1

    公开(公告)日：2016-12-29

    申请号：US15187036

    申请日：2016-06-20

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hiroya UMEYAMA ,  Yukiyoshi UENO ,  Hideki SANO

    IPC: H01M10/04 ,  H01M10/0525

    CPC classification number: H01M10/0431 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0587 ,  Y02T10/7011

    Abstract: A nonaqueous electrolyte secondary battery includes a wound electrode body, and the wound electrode body includes two curved portions and a center flat portion which has flat surfaces. A positive electrode winding end, a negative electrode winding end, and separator winding ends are positioned on the same curved portion. The negative electrode winding end is arranged at an advanced position from the positive electrode winding end in a winding direction, and at least one of the separator winding ends is positioned at an advanced position from the negative electrode winding end in the winding direction. A distance a (mm) from the negative electrode winding end to the separator winding end and a distance b (mm) from the positive electrode winding end to the negative electrode winding end satisfy relationships 0.5≦a×(a+b)≦104 and 0≦b≦11.

    Abstract translation: 非水电解质二次电池包括卷绕电极体，卷绕电极体包括两个弯曲部分和具有平坦表面的中心平坦部分。 正极绕组端，负极绕组端和分离器绕组端位于相同的弯曲部分上。 负极绕组端沿着卷取方向从正极绕组端排列在前进位置，并且至少一个隔板卷绕端部位于从卷绕方向的负极卷绕端部的前进位置。 从负极绕组端到分离器绕组端的距离a（mm）和从正极绕组端到负极绕组端的距离b（mm）满足关系0.5≤a×（a + b）≤104和 0≤b≤11。

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