公开(公告)号：US20090081530A1

公开(公告)日：2009-03-26

申请号：US11918984

申请日：2006-03-07

申请人： Tatsuya Hashimoto ,  Kouki Inoue ,  Kiyomi Kouzuki ,  Yasushi Hirakawa

发明人： Tatsuya Hashimoto ,  Kouki Inoue ,  Kiyomi Kouzuki ,  Yasushi Hirakawa

IPC分类号： H01M2/12 ,  H01M2/08

CPC分类号： H01M2/1229 ,  H01M2/0225 ,  H01M2/263

摘要： In a secondary battery (1) comprising a battery case (2) for accommodating an electrode plate group (3) and an electrolyte, with one open end of the battery case (2) being sealed with an assembled sealing plate (11) that accommodates a safety mechanism (17) for exhausting pressure in the event of pressure build-up in the battery case (2) exceeding a predetermined level, at least one part (13a) of vent holes (13a, 13b, 13c) in the assembled sealing plate (11) facing the inside of the battery case (2) is constituted of an aperture that results from formation of a turned-out portion (23), the distal end of the turned-out portion (23) being allowed to abut on an insulating plate (4a) that makes contact with one end of the electrode plate group (3) so as to restrict movement of the electrode plate group (3). This can prevent malfunctioning due to displacement of the electrode plate group (3) when an impact or vibration is applied.

摘要翻译： 在包括用于容纳电极板组（3）和电解质的电池壳体（2）的二次电池（1）中，电池壳体（2）的一个开口端用组装的密封板（11）密封，所述密封板 用于在电池壳体（2）内的压力累积超过预定水平时排出压力的安全机构（17），组装的密封件中的通气孔（13a，13b，13c）的至少一个部分（13a） 面对电池盒（2）的内部的板（11）由形成折出部（23）而形成的孔构成，所述折出部（23）的前端被允许抵接 绝缘板（4a），其与电极板组（3）的一端接触以限制电极板组（3）的移动。 这可以防止当施加冲击或振动时由于电极板组（3）的位移而发生故障。

公开(公告)号：US20090029242A1

公开(公告)日：2009-01-29

申请号：US12064593

申请日：2006-06-20

申请人： Yasushi Hirakawa

发明人： Yasushi Hirakawa

IPC分类号： H01M2/14

CPC分类号： H01M2/105 ,  H01M2/1094 ,  H01M2/204 ,  H01M2/34 ,  H01M10/0525 ,  H01M2200/00

摘要： A battery pack (21) includes a cell contained therein, the cell having a configuration in which an electrode assembly (4) including a positive electrode plate (1), a negative electrode plate (2), and a separator (3) is contained in a cell case (6), one of the electrodes being electrically connected to the cell case, the other electrode being electrically connected to a cell terminal. The battery pack includes a pack case (14) composed of a conductive member. The pack case (14) is electrically connected to the cell terminal (27), and an insulator is interposed between the pack case and the cell. Thereby, such a battery pack is achieved that, when an external physical shock which can deform a cell contained therein is applied to the battery pack, the damage can be minimized in an inexpensive manner without reducing the volume energy density.

摘要翻译： 电池组（21）包括容纳在其中的电池，所述电池具有其中包含正极板（1），负极板（2）和隔板（3）的电极组件（4）的构造 在电池壳体（6）中，电极中的一个电连接到电池壳体，另一电极电连接到电池端子。 电池组包括由导电构件构成的包装盒（14）。 电池盒（14）电连接到电池端子（27），并且绝缘体插入在包装盒和电池之间。 因此，实现了这样一种电池组，即当将包含在其中的电池变形的外部物理冲击施加到电池组时，可以以便宜的方式使损伤最小化，而不会减小体积能量密度。

公开(公告)号：US06761995B2

公开(公告)日：2004-07-13

申请号：US10333389

申请日：2003-01-17

申请人： Takao Uyama ,  Daisuke Yoshida ,  Toshihiko Izumikawa ,  Yasushi Hirakawa ,  Susumu Yamanaka

发明人： Takao Uyama ,  Daisuke Yoshida ,  Toshihiko Izumikawa ,  Yasushi Hirakawa ,  Susumu Yamanaka

IPC分类号： H01M202

CPC分类号： H01M2/08 ,  H01M2/0222 ,  H01M2/0404 ,  H01M2/0413 ,  H01M10/052 ,  H01M10/4228

摘要： A coin-shaped battery includes a cathode case (1) having a crimp portion (14) in the periphery of a bottom face (1a), and an anode cap (2) having a flange (6) with an extended portion (7) and a turn-up portion (8). Openings of cathode case (1) and the anode cap (2) are sealed by crimping with a gasket (3) interposed therebetween, so that the gasket (3) is compressed between the crimp portion (14) having a U-shaped cross section, the flange (6), the extended portion (7) and the turn-up portion (8) to effect reliable sealing. Thus, it is possible to disperse a deformation pressure, which is generated by bulge of the cathode case (1) and the anode cap (2) caused with a rise in internal pressure of the battery under severe working conditions such as use under a high temperature. As a result, the coin-shaped battery having improved liquid leakage resistance in the crimped portion is provided.

摘要翻译： 硬币型电池包括在底面（1a）的周边具有压接部（14）的阴极壳（1）和具有延伸部（7）的凸缘（6）的阳极盖（2） 和折返部（8）。 阴极壳（1）和阳极盖（2）的开口通过夹在其间的垫圈（3）进行卷边而被密封，使得垫圈（3）在具有U形截面的压接部分（14）之间被压缩 ，凸缘（6），延伸部分（7）和折返部分（8），以实现可靠的密封。 因此，可以分散在恶劣工作条件下使用时在电池内部压力升高下引起的阴极壳（1）和阳极盖（2）的膨胀产生的变形压力 温度。 结果，提供了在压接部分具有改善的耐液体渗漏性的硬币形电池。

公开(公告)号：US06242126B1

公开(公告)日：2001-06-05

申请号：US09068038

申请日：1998-07-23

申请人： Katsuhiko Mori ,  Yoshihiro Kashihara ,  Yasushi Hirakawa ,  Kazuo Saito ,  Kazuhiko Watanabe

发明人： Katsuhiko Mori ,  Yoshihiro Kashihara ,  Yasushi Hirakawa ,  Kazuo Saito ,  Kazuhiko Watanabe

IPC分类号： H01M212

CPC分类号： H01M2/345 ,  H01M2/1235 ,  H01M2/1241 ,  H01M2/34

摘要： The present invention relates to an explosion-proof seal plate for a sealed cell and a production method thereof and aims at providing an explosion-proof seal plate and production method thereof, wherein problems of a risk of explosion of a cell due to an excessive pressure inside the cell caused by abnormal generation of a gas through a chemical reaction accompanying over charge or erroneous use of the cell or damaging of electronic equipment using the cell as the power source are solved, ignition and other accidents can be prevented with a high accuracy by reliably cutting off an electric current when the cell internal pressure increases, and the increase in the resistance due to permeation of an electrolyte can be limited. In order to accomplish this aim, the present invention provides a thin portion 7a having a breaking strength of 18-24 kg/cm2 in the central portion of an upper metallic foil 7 made of aluminum and a thin portion 8a having a breaking strength of 10-13 kg/cm2 in the central portion of a lower metallic foil 8 made of aluminum, wherein the diameter A of the thin portion 7a of the upper metallic foil and the diameter B of the thin portion 8a of the lower metallic foil 8 satisfy the relation AB. The two metallic foils are welded at the central portions with an insulating gasket interposed, and encased in a metallic case 4 made of aluminum having 4 vent holes, on top of which a temperature dependent resistor 5 and a metallic cap 6 having 4 vent holes are then placed. A seal plate is obtained by sealing the periphery of the metallic case 4, with which it is possible to prevent accidents such as ignition and explosion of a cell by reliably allowing internal gas to exhaust in the event of generation of a large volume of gas under an abnormal condition of a sealed cell.

摘要翻译： 密封电池用防爆密封板及其制造方法技术领域本发明涉及密封电池用防爆密封板及其制造方法，其目的在于提供防爆密封板及其制造方法，其特征在于，由于过大的压力而导致电池爆炸的危险性 通过伴随过充电或错误使用电池的化学反应或使用电池作为动力源的电子设备的破坏，导致气体异常产生的电池内部，可以高精度地防止点火等事故。 当电池内部压力增加时可靠地切断电流，并且可以限制由于电解质渗透导致的电阻的增加。 为了达到上述目的，本发明提供一种在由铝制的上金属箔7的中央部分断裂强度为18-24kg / cm 2的薄壁部分7a和断裂强度为10°的薄壁部分8a -13kg / cm 2，其中上金属箔的薄部分7a的直径A和下金属箔8的薄部分8a的直径B满足下述的金属箔8的下部金属箔8的中心部分： 关系AB。 两个金属箔在中心部分被焊接在绝缘垫片上，并且被封装在由具有4个通气孔的铝制成的金属壳体4中，其上具有温度依赖电阻器5和具有4个通气孔的金属盖6 然后放置。 通过密封金属壳体4的周边来获得密封板，通过在发生大量气体的情况下可靠地允许内部气体排出，可以防止电池点火和爆炸等事故 密封电池的异常状况。