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1. 发明授权

US07560901B2 Internal short detection apparatus for secondary-battery, internal short detection method for secondary-battery, battery-pack, and electronic equipment 有权
标题翻译：用于二次电池的内部短路检测装置，二次电池，电池组和电子设备的内部短路检测方法
公开(公告)号：US07560901B2
公开(公告)日：2009-07-14
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 , G01N27/416
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.
摘要翻译：提供一种二次电池内部短路检测装置，其能够精确地检测在二次电池中产生的内部短路。在该装置中：电量存储电路预先将从二次电池充电所需的基准电量从第一电压存储到第二电压; 电量累积电路测量从第一电压向第二电压充电二次电池所需的累积电量; 并且内部短路检测电路将蓄电量累积电路测得的累积电量和存储在电量存储电路中的参考电量进行比较，如果累积电量大于基准电量，然后判定内部短路产生，如果累计电量等于或小于参考电量，则不决定发生内部短路，则重写存储在电力中的参考电量 - 数量存储电路进入累计电量。

2. 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.

3. 发明授权

US08471566B2 Internal short circuit evaluation apparatus for battery 失效
标题翻译：电池内部短路评估装置
公开(公告)号：US08471566B2
公开(公告)日：2013-06-25
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： G01R31/00 , G01N27/416
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。

4. 发明授权

US08017262B2 Lithium secondary battery with porous heat-resistant layer 有权
标题翻译：锂二次电池带多孔耐热层
公开(公告)号：US08017262B2
公开(公告)日：2011-09-13
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： H01M10/02 , H01M2/16
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＆lt; nlE;（ A + B）/ A＆nlE; 10。

5. 发明申请

US20110052971A1 BATTERY 审中-公开
标题翻译：电池
公开(公告)号：US20110052971A1
公开(公告)日：2011-03-03
申请号：US12747752
申请日：2009-11-05
申请人： Masato Fujikawa , Tomohiko Yokoyama , Mikinari Shimada
发明人： Masato Fujikawa , Tomohiko Yokoyama , Mikinari Shimada
IPC分类号： H01M2/26
CPC分类号： H01M10/0587 , H01M2/22 , H01M2/26 , H01M4/661 , H01M4/70 , H01M10/0431 , H01M10/0525 , H01M2004/027 , Y02T10/7011
摘要： In a battery, an electrode group (4) and an electrolyte are together sealed in a battery case (10). The electrode group (4) includes a positive electrode (1) and the negative electrode (2) which are wound or stacked with a separator (3) interposed therebetween. At least one of the positive electrode (1) and the negative electrode (2) includes a current collector (2A) and an active material layer (2B), and a lead (6) is electrically connected to an exposed portion (21) of the current collector (2A). The lead (6) is arranged to extend from the exposed portion (21) to the outside of the current collector (2A) such that the lead (6) straddles a first edge (21a) which is one of edges constituting the exposed portion (21), and is welded to the exposed portion (21) at a position close to the first edge (21a).
摘要翻译：在电池中，电极组（4）和电解质一起密封在电池壳体（10）中。电极组（4）包括正极（1）和负极（2），它们之间插入有隔板（3）卷绕或堆叠。正极（1）和负极（2）中的至少一个包括集电体（2A）和活性物质层（2B），引线（6）电连接到暴露部分集电体（2A）。引线（6）布置成从暴露部分（21）延伸到集电器（2A）的外部，使得引线（6）跨越构成暴露部分的边缘之一的第一边缘（21a）并且在接近第一边缘（21a）的位置处焊接到暴露部分（21）。

6. 发明申请

US20090226803A1 Battery, battery pack and method of manufacturing connection terminal used therein 有权
标题翻译：电池，电池组及制造连接端子的制造方法
公开(公告)号：US20090226803A1
公开(公告)日：2009-09-10
申请号：US12380702
申请日：2009-03-03
申请人： Hajime NISHINO , Masato FUJIKAWA , Tomohiko Yokoyama , Mikinari Shimada
发明人： Hajime NISHINO , Masato FUJIKAWA , Tomohiko Yokoyama , Mikinari Shimada
IPC分类号： H01M2/08 , H01M6/42 , H01R43/00
CPC分类号： H01G9/155 , H01G9/12 , H01M10/0525 , H01M2200/00 , Y02E60/13 , Y10T29/49222
摘要： A battery includes an electrode group, a case, a sealing member, and a mesh portion. The electrode group includes a positive electrode, a negative electrode opposing the positive electrode, an electrolyte interposed between the positive electrode and the negative electrode. The case has an opening and contains the electrode group. The sealing member closes the opening of the case. The mesh portion is provided so as to face an exhaust hole formed in at least one of the case and the sealing member.
摘要翻译：电池包括电极组，壳体，密封构件和网状部分。电极组包括正极，与正极相对的负极，插入在正极和负极之间的电解质。壳体具有开口并且包含电极组。密封构件封闭壳体的开口。网状部分设置成面对形成在壳体和密封构件中的至少一个中的排气孔。

7. 发明申请

US20080186030A1 EVALUATION METHOD AND EVALUATION APPARATUS FOR EVALUATING BATTERY SAFETY, AND BATTERY WHOSE SAFETY INDICES HAVE BEEN DETERMINED WITH THE SAME 失效
标题翻译：用于评估电池安全性的评估方法和评估装置，以及确定安全指标的电池
公开(公告)号：US20080186030A1
公开(公告)日：2008-08-07
申请号：US12027126
申请日：2008-02-06
申请人： Shinji Kasamatsu , Hajime Nishino , Masato Fujikawa , Mikinari Shimada
发明人： Shinji Kasamatsu , Hajime Nishino , Masato Fujikawa , Mikinari Shimada
IPC分类号： G01N27/416 , G01N25/00
CPC分类号： H01M10/44 , H01M2/34 , H01M4/131 , H01M4/133 , H01M10/0525 , H01M10/486 , H01M2200/00
摘要： An evaluation method for evaluating safety of a battery having an electrode group including a positive electrode plate, a negative electrode plate and a separator inserted between said electrode plates. The method includes the steps of charging the battery to a predetermined voltage; incorporating conductive foreign matter into the charged battery such that the conductive foreign matter is in contact with the positive electrode plate, and not in contact with the negative electrode plate; immersing said battery into which the conductive foreign matter has been incorporated in an electrolyte to dissolve and deposit the conductive foreign matter, thereby causing an internal short circuit to occur in the battery; and evaluating a thermal behavior of the battery in which the internal short circuit has occurred, and outputting results of the evaluation as safety indices.
摘要翻译：一种用于评估具有包括插入在所述电极板之间的正极板，负极板和隔板的电极组的电池的安全性的评估方法。该方法包括以下步骤：将电池充电至预定电压; 将导电异物掺入带电电池中，使得导电异物与正极板接触，而不与负极板接触; 将其中已经将导电异物掺入其中的所述电池浸入电解质中以溶解和沉积导电异物，从而在电池中发生内部短路; 并评估发生内部短路的电池的热性能，并输出评价结果作为安全指标。

8. 发明授权

US07378185B2 Prismatic lithium secondary battery having a porous heat resistant layer 有权
标题翻译：具有多孔耐热层的锂离子二次电池
公开(公告)号：US07378185B2
公开(公告)日：2008-05-27
申请号：US11402056
申请日：2006-04-12
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 , H01M4/00
CPC分类号： H01M10/0587 , H01M2/0207 , H01M2/0217 , H01M2/1673 , H01M10/052 , H01M10/4235 , Y02T10/7011
摘要： A prismatic lithium secondary battery includes: a prismatic 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 non-aqueous electrolyte. The electrode assembly includes: a positive electrode; a negative electrode; and a porous heat-resistant layer and a separator that are interposed between the positive and negative electrodes. The side wall of the battery can has two rectangular main flat portions that are opposed to each other, and the thickness A of the porous heat-resistant layer and the thickness B of each of the main flat portions of the side wall satisfy the relation: 0.003≦A/B≦0.05.
摘要翻译：棱柱形锂二次电池包括：棱柱形电池罐，其具有底部，侧壁和敞开的顶部; 电极组件; 非水电解质; 以及覆盖电池壳的开口顶部的密封板，其容纳电极组件和非水电解质。电极组件包括：正电极; 负极; 以及介于正极和负极之间的多孔耐热层和隔膜。电池的侧壁可以具有彼此相对的两个矩形主平面部，多孔耐热层的厚度A和侧壁的主平面部的厚度B满足以下关系： 0.003 <= A / B <= 0.05。

9. 发明授权

US08329334B2 Lithium secondary battery 有权
标题翻译：锂二次电池
公开(公告)号：US08329334B2
公开(公告)日：2012-12-11
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： H01M2/04 , H01M2/16 , H01M2/18 , H01M4/00 , H01M6/10
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。锂二次电池包括电极组件，其包括与介于其间的多孔耐热层缠绕在一起的带状正电极和带状负电极，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＆nlE; B / A＆nlE; 0.995。

10. 发明授权

US08163409B2 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：US08163409B2
公开(公告)日：2012-04-24
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： H01M2/00 , H01M10/48
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。

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