利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

108 条记录 (耗时 0.018 秒)

    Secondary battery and secondary battery manufacturing method
    41.
    发明公开
    Secondary battery and secondary battery manufacturing method 有权
    二次电池和制造二次电池的方法

    公开(公告)号：EP1953860A3

    公开(公告)日：2009-07-08

    申请号：EP08001206.5

    申请日：2008-01-23

    申请人： HITACHI VEHICLE ENERGY, LTD.

    发明人： Aota, Kinya ,  Arai, Masatsugu ,  Nakai, Kenji ,  Tada, Akinori

    IPC分类号： H01M10/04

    CPC分类号： H01M2/263 ,  H01M10/0431 ,  H01M10/0587 ,  Y10T29/49108 ,  Y10T29/49114

    摘要： In a secondary battery, for providing a structure which can enable a welding operation even when a gap is formed between a current collecting plate and a winding assembly, recessed portions 8 are formed in a positive current collecting plate 6. The recessed portions 8 are disposed opposite to the winding assembly 5. A laser beam is irradiated to welding protrusions 9 located between the recessed portions 8 to melt the welding protrusions. Here, since the end surface of a positive electrode foil 1 is uneven in height, the positive electrode foil 1 does not contact the positive current collecting plate 6 necessarily. The welding operation is performed by heating, melting, and dropping the welding protrusions 9 by the use of a YAG laser under the welding condition of a laser power of 900 W and a welding speed 2 m/min.

    Cylindrical secondary battery
    42.
    发明公开
    Cylindrical secondary battery 有权
    ZylinderförmigeSekundärbatterie

    公开(公告)号：EP1926161A2

    公开(公告)日：2008-05-28

    申请号：EP07121241.9

    申请日：2007-11-21

    申请人： HITACHI VEHICLE ENERGY, LTD.

    发明人： Mitani, Takayuki ,  Suzuki, Katsunori

    IPC分类号： H01M2/12 ,  H01M10/52 ,  H01M2/04 ,  H01M10/04 ,  H01M10/02

    CPC分类号： H01M2/1241 ,  H01M2/022 ,  H01M2/0413 ,  H01M2/345 ,  H01M10/052

    摘要： A cylindrical secondary battery where safety can be secured even when an external pressure accompanying rapid deformation of the battery acts on the battery is provided in a battery having a large capacity. A lithium ion secondary battery has a capacity of 14Ah, where an upper lid is fixed to a battery can which receives an electrode winding group therein. The upper lid includes a diaphragm (2) formed with a rupturing valve and an upper lid cap whose peripheral edge portion is fixed to a peripheral edge portion of the diaphragm (2). The rupturing valve includes a rupturing groove (8) with a V-shaped section formed on a surface of the diaphragm (2) positioned on the side of the upper lid cap and a rupturing groove (18) with a U-shaped section formed on a surface of the diaphragm (2) positioned on the side of the electrode winding group so as to correspond to the position of the rupturing groove (8). The diaphragm (2) is inverted due to internal pressure rising in the battery so that a current is cut off. When an external force accompanying rapid deformation of the battery acts on the battery, force acting on the diaphragm (2) tends to concentrate on the rupturing groove (18).

    摘要翻译： 即使在伴随电池的快速变形的外部压力作用在电池上的情况下也能够确保安全性的圆筒形二次电池设置在具有大容量的电池中。 锂离子二次电池的容量为14Ah，其中上盖固定在其中容纳电极绕组的电池罐上。 上盖包括形成有断裂阀和上盖盖的隔膜（2），其周缘部固定在隔膜（2）的周缘部。 破裂阀包括形成在位于上盖盖一侧的隔膜（2）的表面上的V形截面的破裂槽（8），以及形成有U形截面的破裂槽 位于电极绕组组侧面上的隔膜（2）的表面，以对应于破裂槽（8）的位置。 由于电池内部压力上升，隔膜（2）反转，从而切断电流。 当伴随电池快速变形的外力作用在电池上时，作用在隔膜（2）上的力倾向于集中在破裂槽（18）上。

    Assembled battery total voltage detection and leak detection apparatus
    43.
    发明公开
    Assembled battery total voltage detection and leak detection apparatus 有权
    Gerätzur Gesamtspannungs- und Leckerkennungfüreine zusammengesetzte Batterie

    公开(公告)号：EP1898227A1

    公开(公告)日：2008-03-12

    申请号：EP07105747.5

    申请日：2007-04-05

    申请人： HITACHI VEHICLE ENERGY, LTD.

    发明人： Kudo, Akihiko ,  Nagaoka, Masaki ,  Emori, Akihiko ,  Kawata, Takahiro

    IPC分类号： G01R31/36 ,  G01R31/02

    CPC分类号： G01R31/025 ,  G01R31/362

    摘要： The present invention provides an assembled battery total voltage detection and leak detection apparatus which is reduced in size and is reduced in manufacturing costs. Detection of a total voltage is performed at a measurement time of a total voltage of an assembled battery (1) by connecting an output of a positive electrode resistance voltage dividing circuit composed of resistors (9,10) to + input of a differential amplifier (20) and connecting an output of a negative electrode resistance voltage dividing circuit composed of resistors (12,11) to - input of the amplifier (20), and it performs leak detection at a leak detection time by connecting an output of a positive electrode resistance voltage dividing circuit to + input, of the amplifier (20) and connecting + input of the amplifier (20) to the minus input of the differential amplifier (20) to measure an output voltage of the amplifier (20). The total voltage detection and the leak detection can be performed without requiring an insulation type voltage sensor, an insulation power source, photo-couplers, or the like.

    摘要翻译： 本发明提供了一种尺寸减小并且制造成本降低的组合电池总电压检测和泄漏检测装置。 通过将由电阻器（9,10）组成的正电极电阻分压电路的输出连接到差分放大器的输入端（1），在组电池（1）的总电压的测量时间内进行总电压的检测 20），并且将由电阻器（12,11）组成的负极电阻分压电路的输出连接到放大器（20）的输入端，并且在泄漏检测时间通过连接正极的输出来进行泄漏检测 放大器（20）的+输入端的电阻分压电路和放大器（20）的+输入端连接到差分放大器（20）的负输入端，以测量放大器（20）的输出电压。 可以在不需要绝缘型电压传感器，绝缘电源，光耦合器等的情况下执行总电压检测和泄漏检测。

    LITHIUM ION SECONDARY CELL
    44.
    发明公开
    LITHIUM ION SECONDARY CELL 有权
    锂IONEN-SEKUNDÄRZELLE

    公开(公告)号：EP2728653A1

    公开(公告)日：2014-05-07

    申请号：EP11868736.7

    申请日：2011-09-02

    申请人： Hitachi Vehicle Energy, Ltd.

    发明人： OZAKI Ikuo ,  KOISHIKAWA Yoshimasa

    IPC分类号： H01M4/13 ,  H01M4/139 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

    CPC分类号： H01M4/661 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/131 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/122 ,  Y02T10/7011

    摘要： Provided is a lithium ion secondary battery capable of realizing a high energy density while maintaining output. A lithium ion secondary battery D1 according to the present invention includes an electrode having an active material mix layer 31 on both surfaces of a current collector 35. The active material mix layer 31 has a smaller void ratio in a current collector side region 34 of the active material mix layer 31 and a surface side region 32 of the active material mix layer 31 than in an intermediate region 33 between the current collector side region 34 and the surface side region 32 of the active material mix layer 31.

    摘要翻译： 提供一种能够在保持输出的同时实现高能量密度的锂离子二次电池。 根据本发明的锂离子二次电池D1包括在集电体35的两个表面上具有活性物质混合层31的电极。活性物质混合层31在集电体侧区域34中具有较小的空隙率 活性物质混合层31和活性物质混合层31的表面侧区域32之间的中间区域33的活性物质混合层31和表面侧区域32。

    POWER STORAGE UNIT CONTROL CIRCUIT
    47.
    发明公开
    POWER STORAGE UNIT CONTROL CIRCUIT 审中-公开
    STEUERSCHALTUNGFÜREINE STROMSPEICHEREINHEIT

    公开(公告)号：EP2717421A1

    公开(公告)日：2014-04-09

    申请号：EP11866313.7

    申请日：2011-05-23

    申请人： Hitachi Vehicle Energy, Ltd.

    发明人： OHKAWA Keiichiro ,  KAWAHARA Youhei ,  NAKAO Ryouhei

    IPC分类号： H02J7/02 ,  H01M10/44

    摘要： To satisfactorily carry out balancing even when balancing control is suspended.
    It is selected according to a condition which of battery cell information (old state information) by the last balancing stored in a storage device and battery cell information (new state information) acquired during a start of this time is used, and the balancing control is performed.

    摘要翻译： 即使暂停平衡控制，也能令人满意地进行平衡。 根据使用存储在存储装置中的最后平衡的电池单元信息（旧状态信息）和在该时间开始时获取的电池单元信息（新状态信息）的条件来选择平衡控制 执行。

    Battery state estimation system, battery control system, battery system, and battery state estimation method
    48.
    发明公开
    Battery state estimation system, battery control system, battery system, and battery state estimation method 审中-公开
    Batteriezustandsschätzungssystem，Batteriesteuersystem，Batteriesystem，und Verfahren zurSchätzungdes Batteriezustands

    公开(公告)号：EP2700964A2

    公开(公告)日：2014-02-26

    申请号：EP13179118.8

    申请日：2013-08-02

    申请人： Hitachi Vehicle Energy, Ltd.

    发明人： Igarashi, Naoyuki ,  Ohkawa, Keiichiro

    IPC分类号： G01R31/36

    CPC分类号： H02J7/00 ,  G01R31/361 ,  G01R31/3624 ,  G01R31/3651 ,  G01R31/3662 ,  G01R31/3675

    摘要： Disclosed herein is a battery state estimation system 110 which estimates a state of charge of a chargeable battery 400. The battery state estimation system 110 comprises: an SOCv computing unit 111 which calculates a state of charge of the battery 400 using a voltage applied across the battery 400; an SOCi computing unit 112 which integrates a current flowing through the battery 400 to calculate a state of charge of the battery 400; and an SOCw computing unit which performs weighted addition to the state of charge of the battery 400 calculated by the SOCv computing unit 111 and the state of charge of the battery 400 calculated by the SOCi computing unit 112, wherein when the temperature of the battery 400 is a predetermined temperature threshold value or less and the current flowing through the battery 400 is a predetermined current threshold value or less, the SOCw computing unit sets the specific gravity at the state of charge of the battery 400 calculated by the SOCi computing unit 112 larger than that in other cases upon the weighted addition.

    摘要翻译： 本文公开了一种电池状态估计系统110，其估计可充电电池400的充电状态。电池状态估计系统110包括：SOCv计算单元111，其使用施加在可充电电池400上的电压来计算电池400的充电状态 电池400; SOCi计算单元112，其积分流过电池400的电流以计算电池400的充电状态; 以及SOCw计算单元，其对由SOCv计算单元111计算出的电池400的充电状态和由SOCi计算单元112计算的电池400的充电状态进行加权相加，其中当电池400的温度 是预定的温度阈值以下，并且流过电池400的电流为规定的电流阈值以下，SOCw运算部将由SOCi计算部112算出的电池400的充电状态设定为较大 比其他情况下加权加法。