Electrochemical element
    51.
    发明授权
    Electrochemical element 有权
    电化学元素

    公开(公告)号:US07745041B2

    公开(公告)日:2010-06-29

    申请号:US11150095

    申请日:2005-06-13

    IPC分类号: H01M10/00 H01M4/02 H01M4/72

    摘要: Positive and negative electrodes include exposed current collector portions at both lengthwise ends, and these exposed current collector portions are bent such as to protrude from the widthwise edge of the electrodes to form welding pieces. The positive and negative electrodes and a separator interposed therebetween are wound around into a flat shape having an ellipsoidal cross section. The welding pieces of the positive and negative electrodes protruding from opposite sides of the wound electrodes are welded together with respective leads. According to this configuration, a simple but high-quality current collector design capable of stable electrical connection in a high power output prismatic electrochemical element is provided.

    摘要翻译: 正极和负极包括在两个纵向端部处的暴露的集电体部分,并且这些暴露的集电部分被弯曲成从电极的宽度方向的边缘突出以形成焊接片。 将正极和负极以及插入其间的隔板卷绕成具有椭圆形截面的扁平形状。 从卷绕电极的相对侧突出的正极和负极的焊接片与各个引线焊接在一起。 根据该结构,提供了能够在高功率输出棱柱形电化学元件中稳定地电连接的简单而高质量的集电器设计。

    Battery module
    55.
    发明授权
    Battery module 失效
    电池模块

    公开(公告)号:US08399114B2

    公开(公告)日:2013-03-19

    申请号:US13386814

    申请日:2011-07-22

    IPC分类号: H01M2/12 H01M2/20

    摘要: A battery module includes a first unit cell, a second unit cell, a first exhaust chamber, and a second exhaust chamber. The first unit cell is disposed so that a positive electrode terminal faces the first direction. The second unit cell is connected in series to the first unit cell, the negative electrode terminal is disposed so as to face the first direction, and the second unit is disposed so as to be adjacent to the first unit cell. The first exhaust chamber is disposed so as to face the positive electrode terminal of the first unit cell, and discharges a gas which is emitted from the positive electrode terminal of the first unit cell. The second exhaust chamber is disposed so as to face the positive electrode terminal of the second unit cell, and discharges a gas generated from the positive electrode terminal of the second unit cell. The end surface of the second unit cell in the first direction and the outer surface of the first exhaust chamber in the first direction are flush with each other. The end surface of the first unit cell in a second direction opposite to the first direction and the outer surface of the second exhaust chamber in the second direction are flush with each other.

    摘要翻译: 电池模块包括第一单元电池,第二单电池,第一排气室和第二排气室。 第一单电池被设置为使正极端子朝向第一方向。 第二单电池与第一单电池串联连接,负电极端子配置成朝向第一方向,第二单元配置成与第一单电池相邻。 第一排气室配置成与第一单电池的正极端子相对,排出从第一单电池的正极端子射出的气体。 第二排气室配置成与第二单元电池的正极端子相对,并且排出从第二单元电池的正极端子产生的气体。 第一单元电池的第一方向的端面和第一排气室的外表面在第一方向上彼此齐平。 第一单元电池的与第一方向相反的第二方向的端面和第二排气室的外表面在第二方向上彼此齐平。

    Battery internal short-circuit detection apparatus and method, and battery pack
    56.
    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。

    Battery abnormality detection circuit and power supply device
    57.
    发明授权
    Battery abnormality detection circuit and power supply device 失效
    电池异常检测电路和电源装置

    公开(公告)号:US08269463B2

    公开(公告)日:2012-09-18

    申请号:US13142257

    申请日:2010-03-04

    IPC分类号: H02J7/00 G01N27/416

    摘要: A battery abnormality detection circuit includes: a SOC detection unit that detects a SOC of a secondary battery; an internal resistance detection unit that detects an internal resistance value of the secondary battery; a first state acquisition unit that acquires a first SOC and a first resistance value at a predetermined first timing; a second state acquisition unit that acquires a second SOC and a second resistance value at a second timing a storage unit that stores in advance relationship information indicating a correspondence relationship between a SOC and an internal resistance value of the secondary battery; a reference variation value setting unit that sets a reference variation value indicating an amount of variation from an internal resistance value corresponding to the first SOC to an internal resistance value corresponding to the second SOC on the basis of the relationship information stored in the storage unit; and a determination unit that determines that an abnormality has occurred in the secondary battery when an amount of variation from the first resistance value to the second resistance value is different from an amount of variation indicated by the reference variation value that has been set by the reference variation value setting unit.

    摘要翻译: 电池异常检测电路包括:SOC检测单元,其检测二次电池的SOC; 内部电阻检测单元,其检测二次电池的内部电阻值; 第一状态获取单元,其在预定的第一定时获取第一SOC和第一电阻值; 第二状态获取单元,其在第二定时获取第二SOC和第二电阻值,所述存储单元预先存储指示所述二次电池的SOC和内部电阻值之间的对应关系的关系信息; 参考变化值设定单元,其基于存储在存储单元中的关系信息,将表示与第一SOC相对应的内部电阻值的变化量的基准变化量设定为与第二SOC相对应的内部电阻值; 以及确定单元,当从所述第一电阻值到所述第二电阻值的变化量不同于由所述参考设置的所述参考变化值所指示的变化量不同时,确定所述二次电池中已经发生异常 变化值设定单位。

    BATTERY MODULE
    58.
    发明申请
    BATTERY MODULE 审中-公开
    电池模块

    公开(公告)号:US20120225335A1

    公开(公告)日:2012-09-06

    申请号:US13509490

    申请日:2011-07-25

    IPC分类号: H01M2/12

    摘要: A battery module which is able to discharge high-temperature gas emitted from an abnormal battery cell to the outside of a case, without adversely affecting normal battery cells, while suppressing as much as possible an increase in the volume of the battery module due to an exhaust chamber, is provided. The battery module of the present invention includes: a case having an opening, and an exhaust port for discharging gas generated inside the case; a plurality of battery cells each having a terminal plate in which an open part for discharging gas generated inside the cell is provided, the battery cells being arranged inside the case with the terminal plates facing the opening of the case; and a lid attached to the case so as to cover the opening of the case, the lid including a flat plate, and a plurality of convex parts which protrude from a plane including the flat plate toward the inside of the case, and are connected to the terminal plates of the battery cells. A gas flow path leading from the open part of each battery cell to the exhaust port of the case is formed by gaps formed between the convex parts of the lid.

    摘要翻译: 一种电池模块,其能够将从异常电池单元发出的高温气体排放到外部,而不会对正常电池单元造成不利影响,同时尽可能地抑制由于电池模块的电池容量的增加 排气室。 本发明的电池模块包括:具有开口的壳体和用于排出在壳体内产生的气体的排气口; 多个电池单元,其具有端子板,其中设置有用于排出在电池内产生的气体的开口部分,电池单元布置在壳体内,端子板面向壳体的开口; 以及附接到壳体以覆盖壳体的开口的盖子,盖子包括平板,以及从包括平板的平面向壳体的内部突出的多个凸部,并且连接到 电池单元的端子板。 从电池单元的开口部到壳体的排气口的气体流路由形成在盖的凸部之间的间隙形成。

    Battery pack
    60.
    发明授权
    Battery pack 有权
    电池组

    公开(公告)号:US08110302B2

    公开(公告)日:2012-02-07

    申请号:US13132761

    申请日:2010-09-29

    IPC分类号: H01M2/22 H01M2/20

    CPC分类号: H01M2/202 H01M2/105 H01M2/204

    摘要: Provided is a battery pack in which the production of heat due to passage of current in a connector for connecting secondary batteries in parallel is made uniform to increase service life and reduce maintenance costs. A positive terminal connector 14 comprises a connector 14 with through-holes 18. The connector 14 is divided into two regions: a distant region which is distant from the portion connected to an external terminal; and a close region which is close to the connection portion and has the same area as the distant region. The connector 14 is formed so that the open area ratio of the distant region is greater than that of the close region. Thus, the electrical resistance of the close region can be made smaller than that of the distant region. Therefore, the production of heat due to passage of current in the close region can be suppressed.

    摘要翻译: 提供一种电池组,其中并联的用于连接二次电池的连接器中的电流通过而产生的热量被制成均匀以延长使用寿命并降低维护成本。 正端子连接器14包括具有通孔18的连接器14.连接器14被分成两个区域:远离连接到外部端子的部分的远侧区域; 以及靠近连接部分并且具有与远侧区域相同的面积的闭合区域。 连接器14形成为远离区域的开口面积比大于密闭区域的开口面积比。 因此,可以使闭合区域的电阻小于远端区域的电阻。 因此,能够抑制由于密闭区域内的电流而产生的热量。