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1. 发明专利

JP2013232439A Flat wound secondary battery and method for manufacturing the same 审中-公开
标题翻译：平面二次电池及其制造方法
公开(公告)号：JP2013232439A
公开(公告)日：2013-11-14
申请号：JP2013164685
申请日：2013-08-08
申请人： Hitachi Vehicle Energy Ltd , 日立ビークルエナジー株式会社
发明人： WATANABE SATOSHI , ARIGA TOSHIYUKI
IPC分类号： H01M10/04 , H01M2/18 , H01M10/0587
CPC分类号： Y02T10/7011
摘要： PROBLEM TO BE SOLVED: To obtain a flat wound secondary battery capable of suppressing wrinkles generated in an electrode due to unevenness of a welding part, and a method for manufacturing the same.SOLUTION: A secondary battery (1) of the present invention includes: a wound electrode body (3) in which a positive electrode (34) and a negative electrode (32) are flatly wound around an axial core (80) via separators (33, 35); and a battery container (2) for housing the wound electrode body (3). The axial core (80) is formed by winding a resin sheet (81) which has a greater thickness than any of the positive electrode (34), the negative electrode (32), and the separators (33, 35).
摘要翻译：要解决的问题：获得能够抑制由焊接部分的不均匀性引起的电极产生的皱纹的扁平绕组二次电池及其制造方法。本发明的二次电池（1）包括：卷绕电极体（3），其中正极（34）和负极（32）通过隔板（33,35）平面地缠绕在轴芯（80）上; 和用于容纳卷绕的电极体（3）的电池容器（2）。轴芯（80）通过卷绕厚度比正极（34），负极（32）和隔板（33,35）中任一个厚的树脂片（81）形成。

2. 发明专利

JP2013164903A Square secondary battery and module 有权
标题翻译：方形二次电池和模块
公开(公告)号：JP2013164903A
公开(公告)日：2013-08-22
申请号：JP2012026070
申请日：2012-02-09
申请人： Hitachi Vehicle Energy Ltd , 日立ビークルエナジー株式会社
发明人： ARIGA TOSHIYUKI , WATANABE SATOSHI
IPC分类号： H01M10/04 , H01M2/34
CPC分类号： Y02E60/12
摘要： PROBLEM TO BE SOLVED: To obtain a square secondary battery capable of reducing variation in expansion of a battery can.SOLUTION: A square secondary battery 1 includes a flat power generation element 3 housed in a square battery can 11. One turn or more of an insulating protective film 41 is wound around the outer periphery of the power generation element 3. Total thickness Dt of the power generation element 3 and the insulating protective film 41 is adjusted to a preset thickness, by adjusting the length of the insulating protective film 41 wound around the power generation element 3.
摘要翻译：要解决的问题：获得能够减小电池罐膨胀变化的方形二次电池。解决方案：方形二次电池1包括容纳在方形电池罐11中的扁平发电元件3.一个或更多个绝缘保护膜41缠绕在发电元件3的外周。发电元件3和绝缘保护膜41的总厚度Dt通过调节缠绕的绝缘保护膜41的长度而被调节到预设厚度围绕发电元件3。

3. 发明专利

JP2013004192A Secondary battery and manufacturing device for electrode group 有权
标题翻译：电极组二次电池和制造装置
公开(公告)号：JP2013004192A
公开(公告)日：2013-01-07
申请号：JP2011131088
申请日：2011-06-13
申请人： Hitachi Vehicle Energy Ltd , 日立ビークルエナジー株式会社
发明人： WATANABE SATOSHI , ARIGA TOSHIYUKI
IPC分类号： H01M10/0587
CPC分类号： Y02E60/12
摘要： PROBLEM TO BE SOLVED: To provide a secondary battery and manufacturing device for an electrode group having the electrode group in which a separator is welded to a flat-shaped shaft core with a constant stable strength.SOLUTION: The secondary battery has the electrode group made by overlapping electrodes and separators to wind around the flat-shaped shaft core. The electrode group has a heat welding part made by heat welding a tip part of the separator to the shaft core, the heat welding part having a recess formed in a curved surface shape on the shaft core. The manufacturing device for the electrode group is arranged so as to manufacturing the electrode group of the secondary battery by winding the electrodes and the separators around the flat-shaped shaft core in a state of overlapping the electrodes and the separators, and includes a heater block 70 for pressing the separator to the shaft core to heat weld, the heater block 70 including a convex curved surface shape heater tip 70A pressed to the shaft core.
摘要翻译：要解决的问题：提供一种具有电极组的二次电池和二次电池的制造装置，其中隔板以稳定的强度焊接到扁平轴芯上。解决方案：二次电池具有由重叠的电极和隔板制成的电极组，以围绕扁平轴芯卷绕。电极组具有通过将隔板的顶端热焊接到轴芯而形成的热焊接部，该热焊接部具有在轴芯上形成为曲面形状的凹部。电极组的制造装置被布置成通过在与电极和隔板重叠的状态下绕电极和隔膜围绕扁平轴芯缠绕来制造二次电池的电极组，并且包括加热器块 70，用于将分离器按压到轴芯以加热焊接，加热器块70包括按压到轴芯的凸曲面形加热器末端70A。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2014063569A Square battery 有权
标题翻译：方形电池
公开(公告)号：JP2014063569A
公开(公告)日：2014-04-10
申请号：JP2012206316
申请日：2012-09-19
申请人： Hitachi Vehicle Energy Ltd , 日立ビークルエナジー株式会社
发明人： ARIGA TOSHIYUKI , WATANABE SATOSHI , SAWADA KEISUKE
IPC分类号： H01M2/14 , H01M10/04
摘要： PROBLEM TO BE SOLVED: To obtain a square battery having a structure of excellent productivity in which an insulating member can be interposed easily between a battery container and a power generation element, and the attachment work of the insulating member can be automated easily, and to provide a manufacturing method therefor.SOLUTION: A square battery 1 includes an insulating protective film 41 interposed between a battery can 11 and a wound electrode 31. The insulating protective film 41 includes a side cover 42 covering the side face of the wound electrode 31 while being wound therearound by one turn or more in a direction along the flat surface of the wound electrode 31, with a direction orthogonal to the winding axis direction of the wound electrode 31 as the central axis direction, a bottom cover 43 projecting from the side cover 42 and covering a bend on the underside of the wound electrode 31, and folded pieces 44, 45 projecting from the bottom cover 43 and being interposed between the side face of the wound electrode 31 and the vertical walls PW, PN of the battery can 11.
摘要翻译：要解决的问题为了获得具有优异的生产率的结构的方形电池，其中绝缘构件可以容易地插入在电池容器和发电元件之间，并且绝缘构件的附着工作可以容易地自动化，并且提供其制造方法。解决方案：方形电池1包括介于电池罐11和卷绕电极31之间的绝缘保护膜41.绝缘保护膜41包括覆盖卷绕电极31的侧面的侧盖42，同时沿着与卷绕电极31的卷绕轴方向正交的方向作为中心轴方向沿着卷绕电极31的平坦面的方向缠绕一圈以上，从侧盖突出的底盖43 并且覆盖卷绕电极31的下侧上的弯曲部，以及从底盖43突出并折叠的折叠片44,45 在卷绕电极31的侧面和电池罐11的垂直壁PW，PN之间。

5. 发明专利

JP2014026768A Secondary battery 有权
标题翻译：二次电池
公开(公告)号：JP2014026768A
公开(公告)日：2014-02-06
申请号：JP2012164705
申请日：2012-07-25
申请人： Hitachi Vehicle Energy Ltd , 日立ビークルエナジー株式会社
发明人： HATO HIROKI , WATANABE SATOSHI , ARIGA TOSHIYUKI , IIZUKA YOSHIJI
IPC分类号： H01M2/16 , H01M10/04
摘要： PROBLEM TO BE SOLVED: To easily connect two separators to a shaft core, the separators having a simple structure while heat resistant layers of respective separators face each other.SOLUTION: A secondary battery 1 of the present application comprises an electrode group 40 formed by winding a pair of separators 43 and 44 around a shaft core 40a in a state where heat resistant layers 43b and 44b of respective separators are faced each other to be overlapped, the separators including the heat resistant layers 43b and 44b at at least one side surface of resin layers 43a and 44a, respectively, and the heat resistant layers 43b and 44b having a hole communicating in the thickness direction. The secondary battery includes a resin sheet 45 having one end part connected to the shaft core 40a and the other end part connected to the separators 43 and 44 in an overlapped manner.
摘要翻译：要解决的问题：为了容易地将两个分离器连接到轴芯，隔板具有简单的结构，同时各个隔板的耐热层彼此面对。解决方案：本申请的二次电池1包括通过缠绕形成的电极组40 在各个隔板的耐热层43b和44b彼此相对重叠的状态下围绕轴芯40a的一对隔板43和44分隔开，隔板在至少一个侧表面上包括耐热层43b和44b 树脂层43a和44a以及具有沿厚度方向连通的孔的耐热层43b和44b。二次电池包括树脂片45，其一端部与轴芯40a连接，另一端部以重叠的方式连接到隔板43和44。

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