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21. 发明申请

US20070172736A1 Lithium secondary battery 有权
标题翻译：锂二次电池
公开(公告)号：US20070172736A1
公开(公告)日：2007-07-26
申请号：US11698094
申请日：2007-01-26
申请人： Masato Fujikawa , Kaoru Inoue , Mikinari Shimada
发明人： Masato Fujikawa , Kaoru Inoue , Mikinari Shimada
IPC分类号： H01M4/64 , H01M2/16
CPC分类号： H01M10/0525 , H01M2/14 , H01M2/1673 , H01M2/1686 , H01M2/26 , H01M4/13 , H01M4/70 , H01M10/044 , Y02T10/7011
摘要： A lithium secondary battery including: a positive electrode including a strip-shaped positive electrode current collector and a positive electrode active material layer carried on each surface of the positive electrode current collector; a negative electrode including a strip-shaped negative electrode current collector and a negative electrode active material layer carried on each surface of the negative electrode current collector; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein an exposed portion carrying no active material layer is formed on a substantially center portion in a longitudinal direction of at least one of the positive electrode current collector and the negative electrode current collector, a current collecting lead is connected to the exposed portion, and a first heat resistant layer is formed such that the first heat resistant faces at least part of the current collecting lead.
摘要翻译：一种锂二次电池，包括：正极，包括带状正极集电体和在正极集电体的每个表面上承载的正极活性物质层; 在负极集电体的各表面上承载有带状的负极集电体和负极活性物质层的负极，夹在正极和负极之间的隔膜; 和非水电解质，其中，在正极集电体和负极集电体中的至少一个的长度方向的大致中央部形成有不具有活性物质层的露出部，连结集电引线并且形成第一耐热层，使得第一耐热面朝向集流引线的至少一部分。

22. 发明申请

US20060222940A1 Lithium secondary battery 有权
标题翻译：锂二次电池
公开(公告)号：US20060222940A1
公开(公告)日：2006-10-05
申请号：US11396656
申请日：2006-04-04
申请人： Masato Fujikawa , Kohei Suzuki , Kaoru Inoue , Mikinari Shimada
发明人： Masato Fujikawa , Kohei Suzuki , Kaoru Inoue , Mikinari Shimada
IPC分类号： H01M2/02 , H01M2/08 , H01M2/16
CPC分类号： H01M10/0525 , H01M2/0413 , H01M2/1673 , H01M10/0587 , H01M10/4235 , Y02T10/7011
摘要： A lithium secondary battery that is excellent in resistance to short-circuits and heat, is unlikely to suffer a capacity loss due to impact such as dropping, and has a high capacity. The lithium secondary battery includes: an electrode assembly including a strip-like positive electrode and a strip-like negative electrode that are wound together with a porous heat-resistant layer interposed therebetween; a non-aqueous electrolyte; and a battery can. The battery has a restricting part for restricting vertical movement of the electrode assembly. The distance A from the restricting part to the inner bottom face of the battery can and the width B of the negative electrode satisfy the relation: 0.965≦B/A≦0.995.
摘要翻译：耐短路，耐热性优异的锂二次电池不容易因滴落等冲击而产生容量损失，容量大。锂二次电池包括：包含条状正极和带状负极的电极组件，其间插入有多孔耐热层; 非水电解质; 和电池罐。电池具有用于限制电极组件的垂直运动的限制部件。从电池罐的限制部分到内底面的距离A和负极的宽度B满足关系：0.965 <= B / A <= 0.995。

23. 发明申请

US20060186859A1 Internal short detection apparatus for secondary-battery, internal short detection method for secondary-battery, battery-pack, and electronic equipment 有权
公开(公告)号：US20060186859A1
公开(公告)日：2006-08-24
申请号：US11354935
申请日：2006-02-16
申请人： Masato Fujikawa , Masaru Kawabe , Mikinari Shimada
发明人： Masato Fujikawa , Masaru Kawabe , Mikinari Shimada
IPC分类号： H02J7/00
CPC分类号： G01R31/025 , G01R31/36 , H02J7/0011 , H02J7/0031
摘要： A secondary-battery internal short detection apparatus is provided which is capable of precisely detecting an internal short being generated in a secondary-battery. In this apparatus: an electricity-quantity storage circuit stores in advance a reference electricity-quantity necessary for charging the secondary-battery from a first voltage to a second voltage; an electricity-quantity accumulation circuit measures an accumulative electricity-quantity necessary for charging the secondary-battery from the first voltage to the second voltage; and an internal short detection circuit compares the accumulative electricity-quantity measured by the electricity-quantity accumulation circuit and the reference electricity-quantity stored in the electricity-quantity storage circuit, if the accumulative electricity-quantity is larger than the reference electricity-quantity, then decides that an internal short is generated, and if the accumulative electricity-quantity is equal to, or smaller than, the reference electricity-quantity, then without deciding that an internal short is generated, rewrites the reference electricity-quantity stored in the electricity-quantity storage circuit into the accumulative electricity-quantity.

24. 发明授权

US08426048B2 Battery pack, electronic apparatus equipped with the same and electronic apparatus equipped with battery housing part 有权
标题翻译：电池组，配备有电子设备的电子设备和装有电池壳体部件的电子设备
公开(公告)号：US08426048B2
公开(公告)日：2013-04-23
申请号：US12363251
申请日：2009-01-30
申请人： Masato Fujikawa , Mikinari Shimada
发明人： Masato Fujikawa , Mikinari Shimada
IPC分类号： H01M2/12
CPC分类号： H01M2/12 , H01M2/1055
摘要： A battery pack including at least a battery and a casing for accommodating the battery, in which the casing has a ventilation hole communicating with the outside of the casing, and a mesh member made of metal for covering at least the ventilation hole is provided at the side surface of the casing. Preferably, the mesh member is coated with an insulating resin.
摘要翻译：一种电池组，其至少包括电池和用于容纳电池的壳体，其中，所述壳体具有与所述壳体的外部连通的通气孔，以及用于覆盖至少所述通气孔的金属制成的网状构件外壳的侧面。优选地，网状构件涂覆有绝缘树脂。

25. 发明申请

US20110068800A1 INTERNAL SHORT CIRCUIT EVALUATION APPARATUS FOR BATTERY 失效
标题翻译：电池内部短路电路评估装置
公开(公告)号：US20110068800A1
公开(公告)日：2011-03-24
申请号：US12992011
申请日：2010-01-18
申请人： Hajime Nishino , Masato Fujikawa , Mikinari Shimada
发明人： Hajime Nishino , Masato Fujikawa , Mikinari Shimada
IPC分类号： G01N27/416 , G01R31/00
CPC分类号： H01M10/42 , G01R31/025 , H01M2/34 , H01M2/345 , H01M10/425
摘要： The present invention relates to an apparatus for evaluating an internal short circuit of a battery. An object of the invention is to provide an apparatus capable of evaluating whether or not an internal short circuit has occurred in an electrode group in consideration of pressure applied to the electrode group. An internal short circuit evaluation apparatus according to one embodiment of the invention includes at least a pressure member capable of operating independently and applying pressure to at least a predetermined position of the surface of the electrode group, and a short-circuiting member that is pressed into the predetermined position. An internal short circuit evaluation apparatus according to another embodiment of the invention includes a pressure member having an integrated short-circuiting member.
摘要翻译：本发明涉及一种用于评估电池内部短路的装置。本发明的目的是提供一种能够考虑到施加到电极组的压力来评估电极组中是否发生内部短路的装置。根据本发明的一个实施例的内部短路评估装置至少包括能够独立地操作并且对电极组的表面的至少预定位置施加压力的压力构件和被压入预定位置。根据本发明的另一实施例的内部短路评估装置包括具有集成短路构件的压力构件。

26. 发明授权

US07811696B2 Lithium secondary battery and method for producing the same 有权
标题翻译：锂二次电池及其制造方法
公开(公告)号：US07811696B2
公开(公告)日：2010-10-12
申请号：US11330183
申请日：2006-01-12
申请人： Masato Fujikawa , Akira Nagasaki , Tetsu Hashimoto , Kaoru Inoue , Mikinari Shimada
发明人： Masato Fujikawa , Akira Nagasaki , Tetsu Hashimoto , Kaoru Inoue , Mikinari Shimada
IPC分类号： H01M4/00 , H01M6/10 , H01M2/02 , H01M6/08
CPC分类号： H01M10/052 , H01M2/145 , H01M2/18 , H01M4/04 , H01M10/0431 , H01M10/0587 , H01M10/4235 , H01M2004/027 , Y10T29/49115
摘要： In a lithium secondary battery of the present invention, the positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector, the negative electrode includes a negative electrode current collector and a negative electrode active material layer carried on the negative electrode current collector, a heat-resistant layer is formed on the negative electrode, and an insulating tape is attached onto at least a part of the exposed portion of the positive electrode current collector that is opposite to the end of the negative electrode active material layer. Thus, by forming the heat-resistant layer on the negative electrode and attaching the insulating tape onto a part of the exposed portion of the positive electrode current collector, it is possible to efficiently provide a lithium secondary battery exhibiting high safety.
摘要翻译：在本发明的锂二次电池中，所述正极具有负极集电体和负极活性物质层，负极包括负极集电体和负极活性物质层承载在负极集电体上，在负极上形成耐热层，绝缘带附着在正极集电体的暴露部分的与负极端相反的至少一部分上电极活性物质层。因此，通过在负极上形成耐热层并将绝缘带附着在正极集电体的露出部分的一部分上，可以有效地提供具有高安全性的锂二次电池。

27. 发明申请

US20080143337A1 Evaluation method for safety upon battery internal short circuit, evaluation device for safety upon battery internal short circuit, battery, battery pack, and manufacturing method for battery and battery pack 有权
标题翻译：电池内部短路的安全性评价方法，电池内部短路时的安全性评价装置，电池，电池组以及电池和电池组的制造方法
公开(公告)号：US20080143337A1
公开(公告)日：2008-06-19
申请号：US11798630
申请日：2007-05-15
申请人： Masato Fujikawa , Shinji Kasamatsu , Hajime Nishino , Mikinari Shimada
发明人： Masato Fujikawa , Shinji Kasamatsu , Hajime Nishino , Mikinari Shimada
IPC分类号： H01M10/48 , H01M2/00
CPC分类号： H01M10/4235 , G01R31/025 , G01R31/3641 , H01M10/052 , H01M10/4285 , H01M10/48 , H01M10/488 , Y10T29/49108
摘要： A method for evaluating the safety of a battery under an internal short-circuit condition. The method for evaluating an internal short-circuit of a battery is characterized in that a short-circuit can be caused at a desired location inside the battery. According to the evaluation method of the invention, the evaluation result is not affected by the constitution of the outermost part of the battery unlike nail penetration tests which are conventional evaluation methods. Also, unlike crush tests which are conventional evaluation methods, the locations of short-circuits do not vary among tests and the safety under an internal short-circuit condition can be evaluated accurately.
摘要翻译：一种用于在内部短路状况下评估电池的安全性的方法。用于评估电池的内部短路的方法的特征在于，可以在电池内的期望位置处引起短路。根据本发明的评价方法，评价结果不受作为常规评价方法的指甲穿透试验的电池的最外部的构成的影响。此外，与常规评估方法的挤压测试不同，短路的位置在测试之间不变，并且可以准确地评估内部短路条件下的安全性。

28. 发明申请

US20060286439A1 Lithium secondary battery 有权
标题翻译：锂二次电池
公开(公告)号：US20060286439A1
公开(公告)日：2006-12-21
申请号：US11339617
申请日：2006-01-26
申请人： Masato Fujikawa , Shinji Kasamatsu , Hajime Nishino , Hideharu Takezawa , Mikinari Shimada
发明人： Masato Fujikawa , Shinji Kasamatsu , Hajime Nishino , Hideharu Takezawa , Mikinari Shimada
IPC分类号： H01M10/50 , H01M2/16 , H01M4/52 , H01M4/40
CPC分类号： H01M10/052 , H01M2/1653 , H01M2/166 , H01M2/1673 , H01M2/1686 , H01M4/525 , H01M10/4235 , Y02T10/7011
摘要： A lithium secondary battery including: an electrode group, a non-aqueous electrolyte and a battery case housing the electrode group and the non-aqueous electrolyte, the electrode group including a positive electrode, a negative electrode and a separator layer interposed between the positive electrode and the negative electrode, wherein an end-of-charge voltage and an end-of-discharge voltage are set in such a manner that the electrode group has an energy density of not less than 700 Wh/L, the separator layer includes a porous heat-resistant layer, and a short circuit area A produced when an internal short circuit has occurred between the positive electrode and the negative electrode, and a reduced area B of the porous heat-resistant layer that is produced by heat generation satisfy 1≦(A+B)/A≦10.
摘要翻译：一种锂二次电池，其包括：电极组，非水电解质和容纳所述电极组和所述非水电解质的电池壳体，所述电极组包括正极，负极和插入在所述正极之间的隔板层和负极，其中以使得电极组的能量密度不低于700Wh / L的方式设定充电结束电压和放电终止电压，隔板层包括多孔耐热层和在正极和负极之间发生内部短路时产生的短路面积A，通过发热产生的多孔耐热层的减少面积B满足1 <= （A + B）/ A <= 10。

29. 发明申请

US20060222933A1 Cylindrical lithium secondary battery 有权
标题翻译：圆柱形锂二次电池
公开(公告)号：US20060222933A1
公开(公告)日：2006-10-05
申请号：US11396646
申请日：2006-04-04
申请人： Masato Fujikawa , Kohei Suzuki , Kaoru Inoue , Mikinari Shimada
发明人： Masato Fujikawa , Kohei Suzuki , Kaoru Inoue , Mikinari Shimada
IPC分类号： H01M2/18 , H01M2/16
CPC分类号： H01M10/0587 , H01M2/1673 , H01M4/366 , H01M10/052 , H01M10/4235 , Y02T10/7011
摘要： A cylindrical lithium secondary battery that is resistant to breakage of the porous heat-resistant layer and therefore excellent in both safety and battery characteristics. The cylindrical lithium secondary battery includes: a battery can having a bottom, a side wall, and an open top; an electrode assembly; a non-aqueous electrolyte; and a sealing plate covering the open top of the battery can that accommodates the electrode assembly and the electrolyte. The electrode assembly includes a strip-like positive electrode and a strip-like negative electrode that are wound together with a porous heat-resistant layer and a separator interposed between the positive and negative electrodes. The thickness A of the porous heat-resistant layer and the thickness B of the side wall of the battery can satisfy the relation: 0.005≦A/B≦0.1.
摘要翻译：一种耐多孔耐热层破损的圆柱形锂二次电池，因此具有优异的安全性和电池特性。圆筒形锂二次电池包括：具有底部，侧壁和开口顶部的电池壳; 电极组件; 非水电解质; 以及覆盖电池壳体的开口顶部的密封板，其容纳电极组件和电解质。电极组件包括带状的正电极和带状负电极，其与多孔耐热层一起缠绕在一起，隔离件插入在正极和负极之间。多孔耐热层的厚度A和电池侧壁的厚度B可以满足以下关系：0.005 <= A / B <= 0.1。

30. 发明申请

US20060199294A1 Lithium ion secondary battery and method for producing the same 有权
标题翻译：锂离子二次电池及其制造方法
公开(公告)号：US20060199294A1
公开(公告)日：2006-09-07
申请号：US11363189
申请日：2006-02-28
申请人： Masato Fujikawa , Hajime Nishino , Mikinari Shimada
发明人： Masato Fujikawa , Hajime Nishino , Mikinari Shimada
IPC分类号： H01L21/00
CPC分类号： H01M10/058 , H01M2/16 , H01M2/1686 , H01M2/18 , H01M4/13 , H01M4/131 , H01M4/133 , H01M10/0525 , H01M10/44
摘要： Disclosed is a lithium ion secondary battery wherein an active material layer of at least one of positive and negative electrodes, or a separator carries a porous insulating layer, and the surface of the active material layer or separator carrying the porous insulating layer has a first region in which the porous insulating layer is formed and a second region including plural discontinuous deficient hole portions where the porous insulating layer is not formed. When a given reference deficient hole portion is selected from the plural deficient hole portions and a given circle having an area ten times that of the reference deficient hole portion is set on the surface of the active material layer or separator, the area of a part of the second region surrounded by the circle is controlled to not less than 10 μm2 and not more than 100 mm2.
摘要翻译：公开了一种锂离子二次电池，其中正极和负极中的至少一个的活性材料层或隔板承载多孔绝缘层，并且承载多孔绝缘层的活性材料层或隔板的表面具有第一区域其中形成多孔绝缘层，以及包括多个不连续缺陷孔部分的第二区域，其中未形成多孔绝缘层。当从多个缺陷孔部分选择给定的参考缺陷孔部分并且将具有参考缺陷孔部分的面积的十倍的给定圆圈设置在活性物质层或分离器的表面上时，由圆圈包围的第二区域被控制为不小于10um 2和不大于100mm 2。

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