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31. 发明授权

US08444717B2 Method for evaluating battery safety under internal short-circuit condition, battery and battery pack whose safety is identified by internal short-circuit safety evaluation method, and method for producing the same 失效
标题翻译：用于评价内部短路状态下的电池安全性的方法，通过内部短路安全性评价方法识别安全性的电池和电池组及其制造方法
公开(公告)号：US08444717B2
公开(公告)日：2013-05-21
申请号：US12597329
申请日：2008-04-22
申请人： Shinji Kasamatsu , Mikinari Shimada , Masayuki Nagamine , Yasuo Fukase , Masatoshi Takahashi , Masato Iwanaga
发明人： Shinji Kasamatsu , Mikinari Shimada , Masayuki Nagamine , Yasuo Fukase , Masatoshi Takahashi , Masato Iwanaga
IPC分类号： H01M10/48 , G01N27/403 , G01R21/02
CPC分类号： H01M10/48 , H01M6/50 , H01M10/0587 , Y10T29/49108
摘要： The invention provides a method for evaluating the safety of a battery under an internal short-circuit condition. The battery includes: an electrode group including a positive electrode, a negative electrode, and an insulating layer for electrically insulating the electrodes, which are wound or laminated; an electrolyte; a housing for housing the electrode group and the electrolyte; and a current-collecting terminal for electrically connecting the electrode group and the housing. The method of the invention includes: placing a foreign object at a location inside the electrode group of the battery where the positive electrode and the negative electrode face each other; and pressing the location by the pressure applied by a pressing tool to locally crush the insulating layer between the positive and negative electrodes, thereby causing an internal short-circuit. The contact area of the electrode group and the pressing tool during the pressing is larger than the area of a rectangle circumscribed about the foreign object. A short-circuit test is conducted at a given location inside the battery to comprehensively evaluate the safety of the battery under an internal short-circuit condition.
摘要翻译：本发明提供一种用于在内部短路状态下评估电池的安全性的方法。电池包括：包括正极，负极和用于电绝缘电极的绝缘层的电极组，其被卷绕或层压; 电解液用于容纳电极组和电解质的壳体; 以及用于电连接电极组和壳体的集电端子。本发明的方法包括：将异物放置在正极和负极彼此面对的电池的电极组内的位置; 并且通过由加压工具施加的压力来按压位置以局部地挤压正极和负极之间的绝缘层，从而导致内部短路。电极组和按压工具在按压期间的接触面积大于围绕异物的矩形的面积。在电池内的给定位置进行短路测试，以全面评估电池在内部短路条件下的安全性。

32. 发明申请

US20090148762A1 SEPARATOR FOR USE IN NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
标题翻译：用于非水电解质二次电池和非水电解质二次电池的分离器
公开(公告)号：US20090148762A1
公开(公告)日：2009-06-11
申请号：US12091666
申请日：2007-04-20
申请人： Shinji Kasamatsu , Mikinari Shimada , Yasunori Nishida
发明人： Shinji Kasamatsu , Mikinari Shimada , Yasunori Nishida
IPC分类号： H01M2/14
CPC分类号： H01M10/4235 , H01M2/145 , H01M2/1653 , H01M2/166 , H01M10/0431 , H01M10/0436 , H01M10/052
摘要： A separator for use in a non-aqueous electrolyte secondary battery including a first porous layer (layer A) having a shutdown function which becomes substantially a non-porous layer at a high temperature, and a second porous layer (layer B) including an aramid resin and an inorganic material, wherein a ratio (TA/TB) of a thickness (TA) of the layer A relative to a thickness (TB) of the layer B is 2.5 or more and or less.
摘要翻译：一种用于非水电解质二次电池的隔膜，其包括具有在高温下变成基本上无孔层的关闭功能的第一多孔层（层A）和包含芳族聚酰胺的第二多孔层（B层）树脂和无机材料，其中层A的厚度（TA）与层B的厚度（TB）的比（TA / TB）为2.5以上或更小。

33. 发明申请

US20080070107A1 Separator and Non-Aqueous Electrolyte Secondary Battery Using Same 审中-公开
标题翻译：分离器和非水电解质二次电池使用相同
公开(公告)号：US20080070107A1
公开(公告)日：2008-03-20
申请号：US11663810
申请日：2005-09-16
申请人： Shinji Kasamatsu , Mikinari Shimada
发明人： Shinji Kasamatsu , Mikinari Shimada
IPC分类号： H01M2/16
CPC分类号： H01M2/164 , H01M2/166 , H01M2/1686 , H01M10/05
摘要： A separator including at least a layer containing a fine particulate filler and a shutdown layer. The fine particulate filler includes a joined-particle filler that is in the form of a plurality of primary particles joined and bonded to one another. A non-aqueous electrolyte secondary battery including this separator exhibits improved safety, high performance and large current discharge capability particularly at low temperatures.
摘要翻译：至少包含含有细颗粒填料和停堆层的层的分离器。细粒状填料包括以多个一次粒子的形式接合并结合的接合粒子填料。包括该隔板的非水电解质二次电池特别是在低温下表现出改善的安全性，高性能和大电流放电能力。

34. 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。

35. 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。

36. 发明申请

US20100119932A1 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
标题翻译：非电解电解质二次电池
公开(公告)号：US20100119932A1
公开(公告)日：2010-05-13
申请号：US12596579
申请日：2008-04-10
申请人： Kensuke Nakura , Hajime Nishino , Miyuki Nakai , Mikinari Shimada
发明人： Kensuke Nakura , Hajime Nishino , Miyuki Nakai , Mikinari Shimada
IPC分类号： H01M2/00
CPC分类号： H01M10/0525 , H01M2/1673 , H01M2/348 , H01M4/131 , H01M4/485 , H01M4/525 , H01M4/62 , H01M4/66 , H01M4/667 , H01M10/4235 , H01M2004/021 , Y02T10/7011
摘要： An object of the present invention is to provide a high-energy density nonaqueous electrolyte secondary battery that controls the rise in temperature during short circuiting. Used is a nonaqueous electrolyte secondary battery 1, including a battery case 2, and a positive electrode plate 5 having a positive electrode current collector and a positive electrode mixture layer containing a cathode material capable of absorbing and desorbing lithium, a negative electrode plate 6 having a negative electrode current collector and a negative electrode mixture layer containing an anode material capable of absorbing and desorbing lithium, a separator 7 held between the positive and negative electrode plates, and a nonaqueous electrolyte that are enclosed in the battery case, wherein at least one of the positive electrode plate 5 and the negative electrode plate 6 has an electrode plate resistance, as determined in the charged state in the thickness direction when pressurized at 50 kg/cm2, of 0.4 Ω·cm2 or more.
摘要翻译：本发明的目的是提供一种控制短路时的温度上升的高能密度非水电解质二次电池。使用的是具有电池壳体2的非水电解质二次电池1和具有正极集电体的正极板5和含有能够吸收和解吸锂的正极材料的正极合剂层，负极板6具有含有能够吸收和解吸锂的负极材料的负极集电体和负极混合物层，保持在正极板和负极板之间的隔板7和封入电池壳体中的非水电解质，其中至少一个正极板5和负极板6的电极板电阻在50kg / cm 2的加压下，在厚度方向的充电状态下测定为0.4Ω·cm 2·cm 2以上。

37. 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。

38. 发明授权

US08673498B2 Nonaqueous electrolyte secondary battery 有权
标题翻译：非水电解质二次电池
公开(公告)号：US08673498B2
公开(公告)日：2014-03-18
申请号：US12518803
申请日：2007-12-13
申请人： Yoshiyuki Muraoka , Hajime Nishino , Yukihiro Okada , Mikinari Shimada , Miyuki Nakai
发明人： Yoshiyuki Muraoka , Hajime Nishino , Yukihiro Okada , Mikinari Shimada , Miyuki Nakai
IPC分类号： H01M4/00 , H01M2/16
CPC分类号： H01M4/62 , H01M2/16 , H01M4/13 , H01M4/131 , H01M4/133 , H01M4/64 , H01M10/052 , H01M10/0525 , H01M10/058 , H01M10/4235
摘要： A nonaqueous electrolyte secondary battery includes a positive electrode (5), a negative electrode (6) and a porous insulation layer (7). The positive electrode (5) includes a positive electrode current collector (51) and a positive electrode mixture layer (52), and the negative electrode (6) includes a negative electrode current collector (61) and a negative electrode active material layer (62). After charging the nonaqueous electrolyte secondary battery, when a surface of the positive electrode mixture layer (52) and a surface of the negative electrode active material layer (62) are brought in contact with each other, terminals are provided, respectively, on the positive electrode current collector (51) and the negative electrode current collector (62) and a resistance value between the terminals is measured, the resistance value is 1.6 Ω·cm2 or more.
摘要翻译：非水电解质二次电池包括正极（5），负极（6）和多孔绝缘层（7）。正极（5）包括正极集电体（51）和正极合剂层（52），负极（6）具有负极集电体（61）和负极活性物质层（62））。在非水电解质二次电池充电之后，当正极合剂层（52）的表面和负极活性物质层（62）的表面彼此接触时，端子分别设置在正极测定电极集电体51和负极集电体62之间的电阻值，电阻值为1.6Ω·cm 2以上。

39. 发明授权

US08399113B2 Nonaqueous electrolyte secondary battery 有权
标题翻译：非水电解质二次电池
公开(公告)号：US08399113B2
公开(公告)日：2013-03-19
申请号：US12596579
申请日：2008-04-10
申请人： Kensuke Nakura , Hajime Nishino , Miyuki Nakai , Mikinari Shimada
发明人： Kensuke Nakura , Hajime Nishino , Miyuki Nakai , Mikinari Shimada
IPC分类号： H01M10/50 , H01M2/00
CPC分类号： H01M10/0525 , H01M2/1673 , H01M2/348 , H01M4/131 , H01M4/485 , H01M4/525 , H01M4/62 , H01M4/66 , H01M4/667 , H01M10/4235 , H01M2004/021 , Y02T10/7011
摘要： An object of the present invention is to provide a high-energy density nonaqueous electrolyte secondary battery that controls the rise in temperature during short circuiting.Used is a nonaqueous electrolyte secondary battery 1, including a battery case 2, and a positive electrode plate 5 having a positive electrode current collector and a positive electrode mixture layer containing a cathode material capable of absorbing and desorbing lithium, a negative electrode plate 6 having a negative electrode current collector and a negative electrode mixture layer containing an anode material capable of absorbing and desorbing lithium, a separator 7 held between the positive and negative electrode plates, and a nonaqueous electrolyte that are enclosed in the battery case, wherein at least one of the positive electrode plate 5 and the negative electrode plate 6 has an electrode plate resistance, as determined in the charged state in the thickness direction when pressurized at 50 kg/cm2, of 0.4 Ω·cm2 or more.
摘要翻译：本发明的目的是提供一种控制短路时的温度上升的高能密度非水电解质二次电池。使用的是具有电池壳体2的非水电解质二次电池1和具有正极集电体的正极板5和含有能够吸收和解吸锂的正极材料的正极合剂层，负极板6具有含有能够吸收和解吸锂的负极材料的负极集电体和负极混合物层，保持在正极板和负极板之间的隔板7和封入电池壳体中的非水电解质，其中至少一个正极板5和负极板6的电极板电阻在50kg / cm 2的加压下，在厚度方向的充电状态下测定为0.4Ω·cm 2·cm 2以上。

40. 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。

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