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11. 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。

12. 发明授权

US07336081B2 Cell evaluation device including short circuit detector 失效
标题翻译：电池评估装置包括短路检测器
公开(公告)号：US07336081B2
公开(公告)日：2008-02-26
申请号：US11098378
申请日：2005-04-05
申请人： Shinji Kasamatsu , Hajime Nishino , Mikinari Shimada
发明人： Shinji Kasamatsu , Hajime Nishino , Mikinari Shimada
IPC分类号： G01N27/416
CPC分类号： G01R31/3679 , H01M10/0525 , H01M10/4285
摘要： A cell evaluation device has a short circuit detection portion to detect an internal short circuit within a test cell that has been subjected to nail penetration or crushing using the pressure from a pressurization portion, a pressure control portion to halt the operation of the pressurization portion on detection of a short circuit, and a cell information detection portion to collect and record cell information such as the cell temperature. By using such a cell evaluation device, the location of an internal short circuit during an abuse test is specified, and variations in the cell temperature increase accompanying the internal short circuit is minimized.
摘要翻译：电池评估装置具有短路检测部，用于检测使用来自加压部的压力进行指甲穿透或破碎的测试电池内的内部短路，压力控制部分停止加压部分的操作检测短路，以及小区信息检测部分，用于收集和记录诸如小区温度的小区信息。通过使用这样的电池评价装置，规定了在滥用试验期间的内部短路的位置，并且使伴随内部短路的电池温度升高的变化被最小化。

13. 发明授权

US08883348B2 Electrode for lithium ion secondary battery 有权
标题翻译：锂离子二次电池用电极
公开(公告)号：US08883348B2
公开(公告)日：2014-11-11
申请号：US11916603
申请日：2006-07-21
申请人： Hajime Nishino , Shuji Tsutsumi , Shinji Kasamatsu , Hideharu Takezawa , Mikinari Shimada
发明人： Hajime Nishino , Shuji Tsutsumi , Shinji Kasamatsu , Hideharu Takezawa , Mikinari Shimada
IPC分类号： H01M4/00 , H01M4/13 , H01M4/58 , H01M10/0525 , H01M4/70
CPC分类号： H01M4/70 , H01M10/0525 , Y02E60/122 , Y02T10/7011
摘要： An object of the present invention is to provide an electrode for a lithium ion secondary battery that can ensure a high level of safety even when exposed to severe conditions such as a nail penetration test or crush test, and exhibit excellent output characteristics.The present invention relates to an electrode for a lithium ion secondary battery having a material mixture containing active material particles capable of reversibly absorbing and desorbing lithium, and a current collector that carries the material mixture, wherein a surface of the current collector has recessed portions, and an area occupied by the recessed portions accounts for not less than 30% of an a material mixture carrying area of the current collector. The present invention further relates to an electrode for a lithium ion secondary battery wherein, in a cut surface obtained by simultaneously cutting a material mixture and a current collector vertically to an electrode plane, the maximum depth of recessed portions is not less than 1 μm, or a difference between an average thickness of a current collector and a maximum thickness of the current collector is not less than 0.35 μm.
摘要翻译：本发明的目的是提供一种锂离子二次电池用电极，即使在暴露于诸如指甲穿透试验或粉碎试验等严酷条件下也能够确保高水平的安全性，并且显示出优异的输出特性。本发明涉及一种锂离子二次电池用电极，其具有包含能够可逆地吸收和解吸锂的活性物质粒子的材料混合物，以及承载该材料混合物的集电体，其中集电体的表面具有凹部，并且由凹部占据的面积占集电体的混合物承载面积的30％以上。本发明还涉及一种锂离子二次电池用电极，其特征在于，在与电极平面垂直地同时切割材料混合物和集电体的切断面中，凹部的最大深度为1μm以上，或者集电体的平均厚度与集电体的最大厚度的差为0.35μm以上。

14. 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。

15. 发明授权

US07754375B2 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：US07754375B2
公开(公告)日：2010-07-13
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： H01M2/14
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在不小于10μm2且不大于100mm2。

16. 发明申请

US20090208820A1 ELECTROCHEMICAL ELEMENT 有权
标题翻译：电化学元素
公开(公告)号：US20090208820A1
公开(公告)日：2009-08-20
申请号：US12293938
申请日：2007-03-29
申请人： Hajime Nishino , Tomomichi Ueda , Kyousuke Miyata , Mikinari Shimada
发明人： Hajime Nishino , Tomomichi Ueda , Kyousuke Miyata , Mikinari Shimada
IPC分类号： H01M2/12
CPC分类号： H01M2/1235 , H01M2/34 , H01M10/052
摘要： To operate a safety mechanism normally even when an accident happens. For this object, an electrochemical element includes an exhaust valve that operates when an internal pressure in a casing 4 reaches a predetermined pressure to release gas occurring in the casing to the outside, and a perforated plate 2 having holes 5a and 5b, which is provided between an electrode group 3 and the exhaust valve. The area of the perforated plate 2 excluding the holes 5a and 5b is 20% or more and 50% or less of the area of the opening of the casing. The perforated plate 2 is adapted for electrically insulating the electrode group 3 from the sealing member 1.
摘要翻译：即使发生事故，也可以正常运行安全机制。为此目的，一种电化学元件包括排气阀，当外壳4中的内部压力达到预定压力以将外壳中产生的气体释放到外部时，排气阀和具有孔5a和5b的多孔板2 在电极组3和排气阀之间。除了孔5a和5b之外的多孔板2的面积是壳体的开口面积的20％以上且50％以下。多孔板2适于将电极组3与密封构件1电绝缘。

17. 发明申请

US20060286438A1 Lithium secondary battery 审中-公开
标题翻译：锂二次电池
公开(公告)号：US20060286438A1
公开(公告)日：2006-12-21
申请号：US11473328
申请日：2006-06-23
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： H01M2/16 , H01M2/18 , H01M10/50 , 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。

18. 发明授权

US08168314B2 Method for evaluating internal short-circuit of battery, device for evaluating internal short-circuit of battery, battery, battery pack and their manufacturing methods 有权
标题翻译：电池内部短路评估方法，电池，电池，电池组内部短路评估装置及其制造方法
公开(公告)号：US08168314B2
公开(公告)日：2012-05-01
申请号：US12446869
申请日：2007-11-21
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： Methods for evaluating battery safety under internal short-circuit conditions are improved to eliminate variations in evaluation results and accurately evaluate battery safety under internal short-circuit conditions. An internal short-circuit is caused in a battery by using an internal short-circuit causing method in which battery information obtained upon the occurrence of an internal short-circuit hardly changes with the structure of the battery. At this time, the battery information is detected to accurately evaluate the safety of the battery upon the internal short-circuit and identify the safety level.
摘要翻译：改善在内部短路条件下评估电池安全性的方法，以消除评估结果的变化，并在内部短路条件下准确评估电池安全性。通过使用在内部短路发生时获得的电池信息几乎不随电池结构而变化的内部短路引起方法在电池中引起内部短路。此时，检测出电池信息，以便在内部短路时精确地评估电池的安全性并识别安全等级。

19. 发明授权

US08138747B2 Evaluation method for evaluating battery safety in the event of internal short circuit and evaluation apparatus used therefor 有权
标题翻译：在内部短路情况下评估电池安全性的评估方法及其评估装置
公开(公告)号：US08138747B2
公开(公告)日：2012-03-20
申请号：US12027111
申请日：2008-02-06
申请人： Hajime Nishino , Kenichi Suzuki , Shinji Kasamatsu , Masato Fujikawa , Mikinari Shimada
发明人： Hajime Nishino , Kenichi Suzuki , Shinji Kasamatsu , Masato Fujikawa , Mikinari Shimada
IPC分类号： G01N27/416
CPC分类号： H01M10/4285
摘要： The present invention relates to an internal short circuit evaluation method for a battery including an electrode group including a positive electrode plate, a negative electrode plate and a separator disposed between the positive electrode plate and the negative electrode plate, and an outer jacket covering the electrode group, the method including the steps of: (I) processing the electrode group to a predetermined position of the electrode group, from the outside of the electrode group toward the inside thereof; and (II) causing a short circuit between a portion of the electrode plate and a portion of the negative electrode plate of the electrode group that are located inside from the predetermined position, and measuring battery information that is changed by the short circuit, and an evaluation apparatus used for the above-described method.
摘要翻译：本发明涉及一种电池的内部短路评估方法，该电池包括具有正电极板，负极板和设置在正极板和负极板之间的隔板的电极组，以及覆盖电极的外护套该方法包括以下步骤：（I）从电极组的外部向其内部处理电极组到电极组的预定位置; 和（II）在所述电极板的一部分与所述电极组的所述负极板的与所述预定位置对应的部分之间产生短路，并且测量由所述短路而变化的电池信息，以及用于上述方法的评估装置。

20. 发明申请

US20050253591A1 Cell evaluation device 失效
标题翻译：细胞评估装置
公开(公告)号：US20050253591A1
公开(公告)日：2005-11-17
申请号：US11098378
申请日：2005-04-05
申请人： Shinji Kasamatsu , Hajime Nishino , Mikinari Shimada
发明人： Shinji Kasamatsu , Hajime Nishino , Mikinari Shimada
IPC分类号： G01R31/36 , G11C29/00 , H01M10/42 , H01M10/48
CPC分类号： G01R31/3679 , H01M10/0525 , H01M10/4285
摘要： A cell evaluation device has a short circuit detection portion to detect an internal short circuit within a test cell that has been subjected to nail penetration or crushing using the pressure from a pressurization portion, a pressure control portion to halt the operation of the pressurization portion on detection of a short circuit, and a cell information detection portion to collect and record cell information such as the cell temperature. By using such a cell evaluation device, the location of an internal short circuit during an abuse test is specified, and variations in the cell temperature increase accompanying the internal short circuit is minimized.
摘要翻译：电池评估装置具有短路检测部，用于检测使用来自加压部的压力进行指甲穿透或破碎的测试电池内的内部短路，压力控制部分停止加压部分的操作检测短路，以及小区信息检测部分，用于收集和记录诸如小区温度的小区信息。通过使用这样的电池评价装置，规定了在滥用试验期间的内部短路的位置，并且使伴随内部短路的电池温度升高的变化被最小化。

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