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1. 发明申请

US20150295221A1 RECTANGULAR SECONDARY BATTERY 审中-公开
标题翻译：矩形二次电池
公开(公告)号：US20150295221A1
公开(公告)日：2015-10-15
申请号：US14437396
申请日：2012-11-26
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Kazuaki Urano , Masaaki Iwasa , Takuro Tsunaki , Sho Matsumoto
IPC分类号： H01M2/34 , H01M10/0525 , H01M2/02 , H01M4/70 , H01M2/30
CPC分类号： H01M2/345 , H01M2/0237 , H01M2/043 , H01M2/0473 , H01M2/06 , H01M2/22 , H01M2/263 , H01M2/30 , H01M4/70 , H01M10/0431 , H01M10/0525 , H01M10/0587 , H01M2200/20 , H01M2220/20 , Y02E60/122
摘要： Provided is a rectangular secondary battery with improved rigidity against vibrations and impacts. A rectangular secondary battery of the present invention includes: a flat-shaped electrode group; a current-collecting plate electrically connected to the electrode group; a battery case accommodating the current-collecting plate and the electrode group; a battery cover that closes an opening of the battery case; an electrode terminal penetrating through the battery cover, the electrode terminal being connected to the current-collecting plate via a connecting member; and a gasket that is inserted between the electrode terminal and the battery cover for insulating and sealing. An insulator is disposed between the current-collecting plate and the battery cover, the battery cover includes a battery cover side fixing part that fixes the insulator, and the insulator includes a current-collecting plate side fixing part that fixes the current-collecting plate.
摘要翻译：提供了一种具有改善的刚度抵抗振动和冲击的矩形二次电池。本发明的矩形二次电池包括：扁平状电极组; 电连接到所述电极组的集电板; 容纳集电板和电极组的电池壳体; 封闭电池盒的开口的电池盖; 电极端子贯穿电池盖，电极端子经由连接部件与集电板连接; 以及插入在电极端子和电池盖之间用于绝缘和密封的垫圈。在集电板和电池盖之间配置绝缘体，电池盖包括固定绝缘体的电池盖侧固定部，绝缘体包括固定集电板的集电板侧固定部。

2. 发明申请

US20150207128A1 SQUARE SECONDARY BATTERY 审中-公开
标题翻译：方形二次电池
公开(公告)号：US20150207128A1
公开(公告)日：2015-07-23
申请号：US14419411
申请日：2012-09-28
申请人： Hitachi Automotive Systems, Ltd.
发明人： Takuro Tsunaki , Masaaki Iwasa , Kazuaki Urano , Sho Saimaru , Sho Matsumoto
IPC分类号： H01M2/20 , H01M10/04 , H01M2/06 , H01M10/0587
CPC分类号： H01M2/206 , H01M2/0217 , H01M2/024 , H01M2/043 , H01M2/06 , H01M2/305 , H01M10/0413 , H01M10/0587 , H01M2220/20
摘要： A square secondary battery includes a generating element having an electrode; a battery can holding the generating element; a battery lid that seals an opening of the battery can; an external terminal arranged on the battery lid; and a current collector connecting the electrode of the generating element to the external terminal. The external terminal has a bus bar joint to which a bus bar is connected and a current collector joint to which the current collector is connected, the bus bar joint and the current collector joint being integrally juxtaposed on the battery lid. The current collector joint has a cylindrical insertion part to be inserted into a through hole in the battery lid and also has a sealing part arranged at an outer periphery of the insertion part, the sealing part pressing down a sealing member.
摘要翻译：方形二次电池包括具有电极的发生元件; 电池可以容纳发电元件; 密封电池罐的开口的电池盖; 布置在电池盖上的外部端子; 以及将发电元件的电极连接到外部端子的集电体。外部端子具有连接母线的汇流条接头和集电器连接的集电器接头，汇流条接头和集电器接头整体并置在电池盖上。集电器接头具有插入电池盖的通孔中的圆筒形插入部，并且还具有设置在插入部的外周的密封部，密封部按压密封部件。

3. 发明授权

US09923186B2 Rectangular secondary battery 有权
公开(公告)号：US09923186B2
公开(公告)日：2018-03-20
申请号：US15026790
申请日：2013-10-25
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Takuro Tsunaki , Shou Saimaru
IPC分类号： H01M2/00 , H01M2/30 , H01M2/22 , B29C65/16 , B23K26/32 , H01M2/06
CPC分类号： H01M2/305 , B23K26/32 , B23K2101/36 , B29C65/16 , H01M2/06 , H01M2/22 , H01M2/30 , H01M2220/20
摘要： A square secondary battery includes a can housing a power generation element, a lid sealing an opening of the can, an external terminal arranged on the lid, a current collector connected to each of the electrodes of the power generation element, and a connection terminal connecting the current collector and the external terminal by passing through the lid. The external terminal has a flat plate shape arranged along the lid and is made of a clad material in which two flat plate portions made of mutually dissimilar metals are clad-joined on wide-width surfaces and the connection terminal is joined by welding with, of the two flat plate portions of the external terminal, the flat plate portion arranged on a side of the lid.

4. 发明授权

US09741994B2 Secondary battery with current breaking mechanism 有权
公开(公告)号：US09741994B2
公开(公告)日：2017-08-22
申请号：US14420836
申请日：2012-09-28
申请人： Hitachi Automotive Systems, Ltd.
发明人： Kazuaki Urano , Masaaki Iwasa , Takuro Tsunaki , Sho Matsumoto
IPC分类号： H01M2/34 , H01M2/06 , H01M2/02 , H01M2/30 , H01M2/04
CPC分类号： H01M2/345 , H01M2/024 , H01M2/043 , H01M2/0486 , H01M2/06 , H01M2/305 , H01M2200/20 , H01M2220/20
摘要： A rectangular secondary battery includes a current breaking mechanism with improved rigidity against vibration and impact. The current breaking mechanism is interposed in the middle of a current path electrically connected between an external terminal and a wound electrode group to break the current path by the rise of battery internal pressure. The current breaking mechanism includes a connection electrode arranged inside a battery lid and electrically connected to the external terminal, and a conductive plate bonded to the connection electrode and deformed by the rise of the battery internal pressure. The connection electrode includes a tabular member having a through hole in communication with the outside of the battery opening on a planar portion. The conductive plate includes a dome-shaped diaphragm portion gradually reducing its diameter as shifting in an axial direction and a flange portion extending radially outward from an outer peripheral portion of the diaphragm portion.

5. 发明授权

US11552377B2 Rectangular secondary battery 有权
公开(公告)号：US11552377B2
公开(公告)日：2023-01-10
申请号：US14437396
申请日：2012-11-26
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Kazuaki Urano , Masaaki Iwasa , Takuro Tsunaki , Sho Matsumoto
IPC分类号： H01M50/578 , H01M10/04 , H01M50/147 , H01M50/528 , H01M50/538 , H01M50/543 , H01M4/70 , H01M10/0587 , H01M50/10 , H01M50/15 , H01M50/172 , H01M10/0525
摘要： Provided is a rectangular secondary battery with improved rigidity against vibrations and impacts. A rectangular secondary battery of the present invention includes: a flat-shaped electrode group; a current-collecting plate electrically connected to the electrode group; a battery case accommodating the current-collecting plate and the electrode group; a battery cover that closes an opening of the battery case; an electrode terminal penetrating through the battery cover, the electrode terminal being connected to the current-collecting plate via a connecting member; and a gasket that is inserted between the electrode terminal and the battery cover for insulating and sealing. An insulator is disposed between the current-collecting plate and the battery cover, the battery cover includes a battery cover side fixing part that fixes the insulator, and the insulator includes a current-collecting plate side fixing part that fixes the current-collecting plate.

6. 发明授权

US10147925B2 Square secondary battery 有权
公开(公告)号：US10147925B2
公开(公告)日：2018-12-04
申请号：US14419411
申请日：2012-09-28
申请人： Hitachi Automotive Systems, Ltd.
发明人： Takuro Tsunaki , Masaaki Iwasa , Kazuaki Urano , Sho Saimaru , Sho Matsumoto
IPC分类号： H01M2/00 , H01M2/20 , H01M2/06 , H01M2/30 , H01M10/04 , H01M2/02 , H01M10/0587 , H01M2/04
摘要： A square secondary battery includes a generating element having an electrode; a battery can holding the generating element; a battery lid that seals an opening of the battery can; an external terminal arranged on the battery lid; and a current collector connecting the electrode of the generating element to the external terminal. The external terminal has a bus bar joint to which a bus bar is connected and a current collector joint to which the current collector is connected, the bus bar joint and the current collector joint being integrally juxtaposed on the battery lid. The current collector joint has a cylindrical insertion part to be inserted into a through hole in the battery lid and also has a sealing part arranged at an outer periphery of the insertion part, the sealing part pressing down a sealing member.

7. 发明授权

US09954216B2 Rectangular secondary battery 有权
公开(公告)号：US09954216B2
公开(公告)日：2018-04-24
申请号：US15038551
申请日：2013-12-25
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Kazuaki Urano , Keisuke Sawada , Takuro Tsunaki
IPC分类号： H01M2/34 , H01M2/02 , H01M2/30 , H01M10/04 , H01M2/26 , H01M10/052 , H01M10/0587
CPC分类号： H01M2/345 , H01M2/0217 , H01M2/263 , H01M2/30 , H01M2/305 , H01M10/0431 , H01M10/052 , H01M10/0587 , H01M2200/20 , H01M2220/20
摘要： A rectangular secondary battery (1) includes a current interrupting portion (60) disposed in a current path between a collector plate (21) connected to a rolled electrode group (40) and an external terminal (61) and configured to interrupt the current path when an internal pressure of a battery container (2) is increased. The current interrupting portion (60) has a diaphragm (68) whose top portion (68a) is electrically connected to the collector plate (21) and whose edge portion (68b) is electrically connected to the external terminal (61). The diaphragm (68) is formed into a convex shape protruding inside the battery container (2) and into a planar shape elongated in a longitudinal direction of the battery container (2).

8. 发明授权

US09843028B2 Secondary battery 有权
公开(公告)号：US09843028B2
公开(公告)日：2017-12-12
申请号：US15177771
申请日：2016-06-09
申请人： Hitachi Automotive Systems, Ltd.
发明人： Takuro Tsunaki , Masaaki Iwasa , Takashi Sasaki
IPC分类号： H01M2/12 , H01M10/0587 , H01M10/0525 , H01M10/04 , H01M2/02
CPC分类号： H01M2/1252 , H01M2/0217 , H01M10/0431 , H01M10/0525 , H01M10/0587 , H01M2220/20 , Y02T10/7011
摘要： A secondary battery typified by a lithium-ion secondary battery includes a battery outer container in which a gas release valve and positive and negative electrode external terminals are provided, an electrode group in which positive and negative plates are stacked with a separator interposed therebetween and current collection portions are provided at both ends, and positive and negative electrode current collectors forming a current path from the current collection portions of the electrode group to the positive and negative electrode external terminals, and the cross-sectional area of a gas exhaust flow channel through which gas generated inside the electrode group is discharged from the gas release valve is set so as to increase in a downstream direction.

9. 发明申请

US20150243961A1 RECTANGULAR SECONDARY BATTERY 有权
标题翻译：矩形二次电池
公开(公告)号：US20150243961A1
公开(公告)日：2015-08-27
申请号：US14420836
申请日：2012-09-28
申请人： Hitachi Automotive Systems, Ltd.
发明人： Kazuaki Urano , Masaaki Iwasa , Takuro Tsunaki , Sho Matsumoto
IPC分类号： H01M2/34 , H01M2/04
CPC分类号： H01M2/345 , H01M2/024 , H01M2/043 , H01M2/0486 , H01M2/06 , H01M2/305 , H01M2200/20 , H01M2220/20
摘要： A rectangular secondary battery includes a current breaking mechanism with improved rigidity against vibration and impact. The current breaking mechanism is interposed in the middle of a current path electrically connected between an external terminal and a wound electrode group to break the current path by the rise of battery internal pressure. The current breaking mechanism includes a connection electrode arranged inside a battery lid and electrically connected to the external terminal, and a conductive plate bonded to the connection electrode and deformed by the rise of the battery internal pressure. The connection electrode includes a tabular member having a through hole in communication with the outside of the battery opening on a planar portion. The conductive plate includes a dome-shaped diaphragm portion gradually reducing its diameter as shifting in an axial direction and a flange portion extending radially outward from an outer peripheral portion of the diaphragm portion.
摘要翻译：矩形二次电池包括具有改善的抵抗振动和冲击的刚性的电流断路机构。电流断路机构被插入电连接在外部端子和卷绕电极组之间的电流路径的中间，以通过电池内部压力的上升来断开电流路径。电流断路机构包括配置在电池盖内并与外部端子电连接的连接电极以及与连接电极接合并通过电池内部压力上升而变形的导电板。连接电极包括在平面部分上具有与电池开口的外部连通的通孔的平板状构件。导电板包括圆锥形隔膜部分，其逐渐减小其沿轴向移动的直径;以及凸缘部分，其从隔膜部分的外周部分径向向外延伸。

10. 发明授权

US10388939B2 Secondary battery 有权
公开(公告)号：US10388939B2
公开(公告)日：2019-08-20
申请号：US15300816
申请日：2015-04-07
申请人： Hitachi Automotive Systems, Ltd.
发明人： Kazuaki Urano , Keisuke Sawada , Takuro Tsunaki , Masaaki Iwasa
IPC分类号： H01M2/34 , H01M2/30 , H01M2/26 , H01M10/0525 , H01M10/0587 , H01M10/052
摘要： Provided is a secondary battery which can more securely suppress vibrations applied to a current interrupting mechanism. A secondary battery including: a current interrupting mechanism that interrupts a current path between an external terminal and an electrode in a battery container. The current interrupting mechanism includes a collector plate that is connected to the electrode, a diaphragm that is connected to a base portion of the collector plate and disconnected from the base portion by being deformed when a pressure in the battery container is increased, and an insulating member that fixes the diaphragm and the base portion of the collector plate on the inside of the battery container. The insulating member includes a plurality of projections that protrude in a thickness direction of the base portion, and the base portion includes a plurality of notches through which the projection passes in the thickness direction. The projection includes an engaging member that is engaged with an end surface of the base portion on a side opposite to the insulating member and a side surface of the base portion along the thickness direction.

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