Internal short detection apparatus for secondary-battery, internal short detection method for secondary-battery, battery-pack, and electronic equipment

    公开(公告)号:US20060186859A1

    公开(公告)日:2006-08-24

    申请号:US11354935

    申请日:2006-02-16

    IPC分类号: H02J7/00

    摘要: A secondary-battery internal short detection apparatus is provided which is capable of precisely detecting an internal short being generated in a secondary-battery. In this apparatus: an electricity-quantity storage circuit stores in advance a reference electricity-quantity necessary for charging the secondary-battery from a first voltage to a second voltage; an electricity-quantity accumulation circuit measures an accumulative electricity-quantity necessary for charging the secondary-battery from the first voltage to the second voltage; and an internal short detection circuit compares the accumulative electricity-quantity measured by the electricity-quantity accumulation circuit and the reference electricity-quantity stored in the electricity-quantity storage circuit, if the accumulative electricity-quantity is larger than the reference electricity-quantity, then decides that an internal short is generated, and if the accumulative electricity-quantity is equal to, or smaller than, the reference electricity-quantity, then without deciding that an internal short is generated, rewrites the reference electricity-quantity stored in the electricity-quantity storage circuit into the accumulative electricity-quantity.

    Internal short circuit evaluation apparatus for battery
    63.
    发明授权
    Internal short circuit evaluation apparatus for battery 失效
    电池内部短路评估装置

    公开(公告)号:US08471566B2

    公开(公告)日:2013-06-25

    申请号:US12992011

    申请日:2010-01-18

    IPC分类号: G01R31/00 G01N27/416

    摘要: The present invention relates to an apparatus for evaluating an internal short circuit of a battery. An object of the invention is to provide an apparatus capable of evaluating whether or not an internal short circuit has occurred in an electrode group in consideration of pressure applied to the electrode group. An internal short circuit evaluation apparatus according to one embodiment of the invention includes at least a pressure member capable of operating independently and applying pressure to at least a predetermined position of the surface of the electrode group, and a short-circuiting member that is pressed into the predetermined position. An internal short circuit evaluation apparatus according to another embodiment of the invention includes a pressure member having an integrated short-circuiting member.

    摘要翻译: 本发明涉及一种用于评估电池内部短路的装置。 本发明的目的是提供一种能够考虑到施加到电极组的压力来评估电极组中是否发生内部短路的装置。 根据本发明的一个实施例的内部短路评估装置至少包括能够独立地操作并且对电极组的表面的至少预定位置施加压力的压力构件和被压入 预定位置。 根据本发明的另一实施例的内部短路评估装置包括具有集成短路构件的压力构件。

    VEHICULAR HYBRID DRIVE SYSTEM
    64.
    发明申请
    VEHICULAR HYBRID DRIVE SYSTEM 审中-公开
    车辆混合驱动系统

    公开(公告)号:US20130005530A1

    公开(公告)日:2013-01-03

    申请号:US13583734

    申请日:2010-03-10

    IPC分类号: B60W10/08

    摘要: A motor drive mode for driving a vehicle with only a second motor/generator is available in a selected one of two motor drive sub-modes consisting of a response-oriented motor drive sub-mode established by placing a forward drive clutch in a released state and placing a starting clutch in an engaged state, and a fuel-economy-oriented motor drive sub-mode established by placing the forward drive clutch in an engaged state and placing the starting clutch in a released state. In the response-oriented motor drive sub-mode in which an engine and a transmission are disconnected from each other, the engine can be efficiently started to change the vehicle drive mode to an engine drive mode, and an engaging action of only the forward drive clutch is required after starting of the engine, so that the engine drive mode can be established with a high response. In the fuel-economy-oriented motor drive sub-mode, the starting clutch is released to disconnect the transmission from the motor/generator, for reducing a power loss and improving fuel economy. After starting of the engine to establish the engine drive mode, an engaging action of only the starting clutch is required.

    摘要翻译: 用于仅使用第二电动机/发电机驱动车辆的电动机驱动模式可用于通过将向前驱动离合器放置在释放状态而建立的响应取向的电动机驱动子模式的两个电动机驱动子模式中的所选择的一个中 并且将起动离合器置于接合状态,以及通过将前进驱动离合器置于接合状态并将起动离合器置于释放状态而建立的燃料经济型电动机驱动副模式。 在发动机和变速器彼此断开的面向响应的电动机驱动子模式中,可以有效地启动发动机,将车辆驱动模式改变为发动机驱动模式,并且仅将前进驱动 发动机起动后需要离合器,从而能够以较高的响应建立发动机驱动模式。 在燃料经济性的电动机驱动副模式中,释放起动离合器以将电动机/发电机的变速器断开,以减少功率损耗并提高燃油经济性。 在启动发动机以建立发动机驱动模式之后,仅需要起动离合器的接合动作。

    Battery internal short-circuit detection apparatus and method, and battery pack
    65.
    发明授权
    Battery internal short-circuit detection apparatus and method, and battery pack 有权
    电池内部短路检测装置及方法及电池组

    公开(公告)号:US08334699B2

    公开(公告)日:2012-12-18

    申请号:US12602752

    申请日:2008-06-04

    IPC分类号: G01N27/416 H02J7/00 H02J7/04

    摘要: A battery internal short-circuit detection apparatus includes: a voltage detection unit for detecting a terminal voltage of the battery; a current detection unit for detecting a discharging current of the battery; a voltage drop and recovery detection unit for detecting a momentary voltage drop of the battery and a recovery from the voltage drop, in response to a result of detection performed by the voltage detection unit; and a determination unit for determining that an internal short circuit has occurred, when a maximum value of the discharging current detected by the current detection unit between the voltage drop and the recovery is equal to or lower than a threshold current.

    摘要翻译: 电池内部短路检测装置包括:电压检测单元,用于检测电池的端子电压; 用于检测电池的放电电流的电流检测单元; 响应于由电压检测单元进行的检测的结果,用于检测电池的瞬时电压降和从电压降恢复的电压降和恢复检测单元; 以及当电压检测单元在电压降和恢复之间检测到的放电电流的最大值等于或低于阈值电流时,确定发生内部短路的确定单元。

    Non-aqueous electrolyte secondary battery
    66.
    发明授权
    Non-aqueous electrolyte secondary battery 失效
    非水电解质二次电池

    公开(公告)号:US08048569B2

    公开(公告)日:2011-11-01

    申请号:US12030411

    申请日:2008-02-13

    IPC分类号: H01M4/13

    摘要: A non-aqueous electrolyte secondary battery comprising a negative electrode having a current collector provided with convex portions and concave portions on both surfaces, a first columnar body formed in a tilting orientation on the convex portion on one of the surfaces of the current collector, and a second columnar body formed in a tilting orientation on the convex portion on the other surface, a positive electrode having a positive electrode current collector provided with a positive electrode mixture layer containing a positive electrode active material capable of reversibly inserting and extracting lithium ions on both surfaces, and a separator interposed between the positive electrode and the negative electrode in a confronting manner, wherein the first columnar body and the second columnar body on the negative electrode are tilted to an orthogonal direction of a winding direction of the current collector.

    摘要翻译: 一种非水电解质二次电池,包括具有集电体的负极,所述集电器在两个表面上设置有凸部和凹部,在所述集电体的一个表面上的所述凸部上以倾斜取向形成的第一柱状体,以及 在另一个表面的凸部上以倾斜取向形成的第二柱状体,具有正极集电体的正极,该正极集电体设置有包含能够在两者上可逆地插入和提取锂离子的正极活性物质的正极合剂层 表面和以相对方式夹在正极和负极之间的隔膜,其中负极上的第一柱状体和第二柱状体沿着集电体的卷绕方向的正交方向倾斜。

    Lithium secondary battery with porous heat-resistant layer
    67.
    发明授权
    Lithium secondary battery with porous heat-resistant layer 有权
    锂二次电池带多孔耐热层

    公开(公告)号:US08017262B2

    公开(公告)日:2011-09-13

    申请号:US11339617

    申请日:2006-01-26

    IPC分类号: H01M10/02 H01M2/16

    摘要: A lithium secondary battery including: an electrode group, a non-aqueous electrolyte and a battery case housing the electrode group and the non-aqueous electrolyte, the electrode group including a positive electrode, a negative electrode and a separator layer interposed between the positive electrode and the negative electrode, wherein an end-of-charge voltage and an end-of-discharge voltage are set in such a manner that the electrode group has an energy density of not less than 700 Wh/L, the separator layer includes a porous heat-resistant layer, and a short circuit area A produced when an internal short circuit has occurred between the positive electrode and the negative electrode, and a reduced area B of the porous heat-resistant layer that is produced by heat generation satisfy 1≦(A+B)/A≦10.

    摘要翻译: 一种锂二次电池,其包括:电极组,非水电解质和容纳所述电极组和所述非水电解质的电池壳体,所述电极组包括正极,负极和插入在所述正极之间的隔板层 和负极,其中以使得电极组的能量密度不低于700Wh / L的方式设定充电结束电压和放电终止电压,隔板层包括多孔 耐热层和在正极和负极之间发生内部短路时产生的短路面积A,通过发热产生的多孔耐热层的减少面积B满足1< nlE;( A + B)/ A≦̸ 10。

    BATTERY INTERNAL SHORT-CIRCUIT DETECTION APPARATUS AND METHOD, AND BATTERY PACK
    68.
    发明申请
    BATTERY INTERNAL SHORT-CIRCUIT DETECTION APPARATUS AND METHOD, AND BATTERY PACK 有权
    电池内部短路检测装置和方法以及电池组

    公开(公告)号:US20100188050A1

    公开(公告)日:2010-07-29

    申请号:US12602752

    申请日:2008-06-04

    IPC分类号: H02J7/00

    摘要: A battery internal short-circuit detection apparatus includes: a voltage detection unit for detecting a terminal voltage of the battery; a current detection unit for detecting a discharging current of the battery; a voltage drop and recovery detection unit for detecting a momentary voltage drop of the battery and a recovery from the voltage drop, in response to a result of detection performed by the voltage detection unit; and a determination unit for determining that an internal short circuit has occurred, when a maximum value of the discharging current detected by the current detection unit between the voltage drop and the recovery is equal to or lower than a threshold current.

    摘要翻译: 电池内部短路检测装置包括:电压检测单元,用于检测电池的端子电压; 用于检测电池的放电电流的电流检测单元; 响应于由电压检测单元进行的检测的结果,用于检测电池的瞬时电压降和从电压降恢复的电压降和恢复检测单元; 以及当电压检测单元在电压降和恢复之间检测到的放电电流的最大值等于或低于阈值电流时,确定发生内部短路的确定单元。

    LITHIUM ION SECONDARY BATTERY
    69.
    发明申请
    LITHIUM ION SECONDARY BATTERY 审中-公开
    锂离子二次电池

    公开(公告)号:US20090117463A1

    公开(公告)日:2009-05-07

    申请号:US12261381

    申请日:2008-10-30

    摘要: In a lithium ion secondary battery including a positive electrode, a negative electrode containing an alloy-based negative electrode active material, a separator, a positive electrode lead, a negative electrode lead, a gasket, and an outer case, the positive electrode is allowed to contain an oxygen deficient non-stoichiometric oxide, or an oxygen removing layer containing an oxygen deficient non-stoichiometric oxide is provided between the positive electrode and the separator. In a lithium ion secondary battery containing the alloy-based negative electrode active material, a reaction between oxygen generated in the positive electrode and the alloy-based negative electrode active material, and heat generation accompanying the reaction are prevented.

    摘要翻译: 在包含正极的锂离子二次电池,含有合金系负极活性物质的负极,隔膜,正极引线,负极引线,垫圈和外壳中,允许正极 含有氧缺乏的非化学计量的氧化物,或者在正极和隔板之间设置含有缺氧的非化学计量的氧化物的除氧层。 在含有合金系负极活性物质的锂离子二次电池中,防止了正极中产生的氧与合金系负极活性物质之间的反应,伴随着反应的发热。

    Driving device
    70.
    发明申请
    Driving device 审中-公开
    驱动装置

    公开(公告)号:US20090082153A1

    公开(公告)日:2009-03-26

    申请号:US11794813

    申请日:2006-10-16

    IPC分类号: F16D48/02 F16D25/12

    摘要: In a driving device that includes a mechanical oil pump operated by power of an engine and a motor oil pump EOP operated by power of a motor, provided in parallel with each other, and check valves on discharge sides of the pumps, and pumps oil from any of the pumps and supplies the oil to a clutch included in a transmission, a through hole 68a for releasing air that communicates with a discharge port 68 is formed in a case 61 of the mechanical oil pump MOP. This allows air trapped in when driving of the mechanical oil pump MOP is started along with a start of the engine to be quickly discharged to quickly increase internal pressure to pressure required for opening the check valve, and thus oil can be supplied to the clutch of the transmission via the check valve to quickly operate the clutch.

    摘要翻译: 在包括由发动机动力运转的机械油泵和由彼此并联设置的马达的动力运行的马达油泵EOP的驱动装置中,以及在泵的排​​出侧的止回阀,并将油从 任何泵并将油供给到包括在变速器中的离合器,在机械油泵MOP的壳体61中形成有用于释放与排出口68连通的空气的通孔68a。 这使得当机械油泵MOP的驱动开始时被捕获的空气与发动机的启动一起被快速排出,以快速地将内部压力提高到打开止回阀所需的压力,并且因此可以将油提供给 通过止回阀进行传动,快速操作离合器。