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公开(公告)号：US10777799B2
公开(公告)日：2020-09-15
申请号：US13989428
申请日：2010-11-26
申请人： Tomoyoshi Ueki , Naoyuki Wada , Yoshiyuki Ozaki
发明人： Tomoyoshi Ueki , Naoyuki Wada , Yoshiyuki Ozaki
IPC分类号： H01M2/16 , H01M10/052 , H01M10/0587
摘要： The present invention provides an optimal non-aqueous electrolyte secondary battery having high durability against high rate charging and discharging and excellent safety. The non-aqueous electrolyte secondary battery 100 according to the present invention comprises a positive electrode 10, a negative electrode 20 and a separator 30 which is interposed between the positive electrode 10 and the negative electrode 20. The separator 30 has a two-layer structure which is composed of a porous polyethylene layer 34 mainly composed of polyethylene, and a porous polymer layer 32 mainly composed of a polymer having higher oxidation resistance than that of the polyethylene, and an inorganic filler layer 40 including an inorganic filler and a binder is formed on the surface of the polyethylene layer 34 on which the porous polymer layer 32 is not formed.
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公开(公告)号：US09660240B2
公开(公告)日：2017-05-23
申请号：US14130993
申请日：2011-07-07
IPC分类号： H01M2/16 , H01M10/052 , H01M2/34
CPC分类号： H01M2/1686 , H01M2/1653 , H01M2/1673 , H01M2/348 , H01M10/052
摘要： Provided is a very safe secondary battery that can prevent the occurrence of battery abnormalities even when the internal battery temperature increases due to, for example, overcharging. A separator 70 in this secondary battery has a laminated structure that is provided with at least two porous layers 76A, 72, 76B, wherein one of these layers forms a porous electroconductive layer 72 in which an electroconductive material 74 is dispersed in the porous layer.
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3.发明授权Non-aqueous electrolyte secondary battery including a porous layer having filler particles and method of making thereof 有权包括具有填料颗粒的多孔层的非水电解质二次电池及其制造方法公开(公告)号：US09583769B2
公开(公告)日：2017-02-28
申请号：US13817162
申请日：2010-08-19
IPC分类号： H01M4/00 , H01M4/62 , H01M2/16 , H01M4/13 , H01M10/0566 , H01M10/0587
CPC分类号： H01M4/626 , H01M2/1646 , H01M4/13 , H01M10/0566 , H01M10/0587 , Y02E60/122
摘要： A non-aqueous electrolyte secondary battery obtained by the present invention is a non-aqueous electrolyte secondary battery including an electrode body having a positive electrode sheet and a negative electrode sheet 20 stacked via a separator sheet 40. A porous layer 42 having filler particles 44 and a binder is formed between the separator sheet 40 and at least one of the positive electrode sheet and the negative electrode sheet 20. The median value in the circularity distribution of the filler particles 44 contained in the porous layer 42 is 0.85 to 0.97.
摘要翻译： 通过本发明获得的非水电解质二次电池是具有通过隔板40堆叠的具有正极片和负极片20的电极体的非水电解质二次电池。具有填充剂粒子44的多孔层42 并且在隔离片40与正极片和负极片20中的至少一个之间形成粘结剂。包含在多孔层42中的填料颗粒44的圆形度分布中的中值为0.85至0.97。
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公开(公告)号：US09293785B2
公开(公告)日：2016-03-22
申请号：US13498683
申请日：2010-03-26
申请人： Tomoyoshi Ueki , Hideaki Fujita
发明人： Tomoyoshi Ueki , Hideaki Fujita
IPC分类号： H01M10/04 , H01M10/0525 , H01M2/02 , H01M10/0587 , H01M2/26
CPC分类号： H01M10/0525 , H01M2/0217 , H01M2/263 , H01M10/0431 , H01M10/0468 , H01M10/0481 , H01M10/0587 , Y02E60/122 , Y02T10/7011
摘要： A lithium ion secondary battery includes a flat wound electrode body including a positive electrode sheet and a negative electrode sheet that are wound while interposing therebetween separators into a flat shape, and a battery case. In the flat wound electrode body, a central portion has a more constricted shape than end portions by pressing toward a winding axis in a short-side direction and each end portion includes an end-portion positive electrode sheet, an end-portion negative electrode sheet, and end-portion separators, and a core member arranged more inward than them. With tensile forces generated by pressing of the central portion in a central-portion positive electrode sheet, central-portion negative electrode sheet, and central-portion separators, the end-portion positive electrode sheet, end-portion negative electrode sheet, and end-portion separators are in pressure contact with each other and press the outer surfaces of the core member.
摘要翻译： 锂离子二次电池包括平板卷绕电极体和电池壳体，该平坦卷绕电极体包括正极片和负极片，所述正极片和负极片在分隔件之间插入平坦形状时被卷绕。 在扁平卷绕电极体中，通过在短边方向上朝向卷绕轴的方向挤压，中央部的形状比端部形状多，并且各端部包括端部正极片，端部负极片 和端部分隔件，以及比其更内侧布置的芯构件。 通过在中央部正极片，中央部负极片和中央部隔片中的中央部的按压而产生的拉伸力，端部正极片，端部负极片， 部分隔板彼此压力接触并挤压芯构件的外表面。
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公开(公告)号：US09190668B2
公开(公告)日：2015-11-17
申请号：US13703949
申请日：2010-06-15
IPC分类号： H01M2/14 , H01M4/62 , H01M2/16 , H01M10/052 , H01M10/0566 , H01M10/0587
CPC分类号： H01M4/626 , H01M2/1646 , H01M10/052 , H01M10/0566 , H01M10/0587 , Y02E60/122
摘要： A nonaqueous electrolyte secondary battery provided by the present invention includes an electrode body in which a positive electrode sheet and a negative electrode sheet 20 are laminated with a separator sheet 40 interposed therebetween. A porous layer 42 including an inorganic filler and a binder is formed on at least one surface of the separator sheet 40. The surface of the porous layer 42 is made uneven by forming peaks and valleys, and a maximum difference of elevation on an uneven surface 42a is 0.2 μm to 1.7 μm.
摘要翻译： 本发明提供的非水电解质二次电池包括其中正极片和负极片20层叠有间隔片40的电极体。 在隔片40的至少一个表面上形成包括无机填料和粘合剂的多孔层42.多孔层42的表面通过形成峰谷形成为不均匀，并且在不平坦表面上的最大高度差 42a为0.2μm〜1.7μm。
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公开(公告)号：US20140220402A1
公开(公告)日：2014-08-07
申请号：US14342078
申请日：2011-09-01
申请人： Tomoyoshi Ueki , Yukihiro Okada
发明人： Tomoyoshi Ueki , Yukihiro Okada
IPC分类号： H01M10/42
CPC分类号： H01M10/4235 , H01M2/16 , H01M2/166 , H01M2/1686 , H01M2/18
摘要： The nonaqueous electrolyte secondary battery 100 according to the present invention is provided with a wound electrode assembly in which a positive electrode sheet and a negative electrode sheet are wound, with a porous separator sheet 30 interposed therebetween. A filler layer 40 comprising an inorganic filler and a binder is formed on one side of the separator sheet 30. The filler layer 40 is continuously provided from the winding start end 38A to the winding finish end 38B of the separator sheet 30 in the winding direction of this sheet. The separator sheet 30 has low porosity regions 36A, 36B, which have a lower porosity than a location 35 outside these regions, in regions having prescribed width WA, WB from the winding start end 38A and/or the winding finish end 38B of the sheet toward the center of the sheet.
摘要翻译： 根据本发明的非水电解质二次电池100设置有卷绕电极组件，其中缠绕有正极片和负极片，其间插入多孔隔离片30。 在隔板30的一侧形成有包含无机填料和粘合剂的填料层40.填料层40从缠绕起始端38A向卷绕方向上的隔离层30的卷绕结束端38B连续地设置 的这张表。 隔板30具有低孔隙率区域36A，36B，其具有比这些区域外的位置35低的孔隙率，具有规定宽度WA的区域，来自片材的卷绕起始端38A和/或卷绕完成端38B的区域 朝着纸张的中心。
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公开(公告)号：US08771860B2
公开(公告)日：2014-07-08
申请号：US13122173
申请日：2010-06-11
CPC分类号： H01M10/0431 , H01M2/1686 , H01M4/13 , H01M4/139 , H01M4/366 , H01M10/052 , H01M10/0587 , Y02T10/7011 , Y10T29/49115
摘要： A lithium secondary battery provided by the present invention includes a spirally wound electrode body in which a positive electrode sheet and a negative electrode sheet are spirally wound with a separator sheet 40 interposed therebetween, wherein on a sheet surface of at least any one from among the positive electrode sheet, negative electrode sheet, and separator sheet 40 constituting the spirally wound electrode body, a porous layer 60 is formed along a longitudinal direction of the sheet 40, and the porous layer 60 is thicker in a spiral winding direction of the spirally wound electrode body in a winding center portion 62 than in a winding outer portion 64.
摘要翻译： 本发明提供的锂二次电池包括螺旋卷绕的电极体，其中正极片和负极片螺旋地缠绕有介于其间的隔板片40，其中，在 构成螺旋卷绕电极体的正极片，负极片和隔板片40沿着片40的长度方向形成多孔层60，多孔层60在螺旋缠绕的螺旋缠绕方向上较厚 卷绕中心部分62中的电极体比卷绕外部部分64中的电极体。
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公开(公告)号：US20140004400A1
公开(公告)日：2014-01-02
申请号：US14004440
申请日：2011-03-16
IPC分类号： H01M10/50
CPC分类号： H01M10/613 , H01M2/1646 , H01M2/1653 , H01M2/166 , H01M2/1686 , H01M10/052 , Y02E60/122
摘要： The present invention provides a non-aqueous electrolyte secondary battery with great high-rate discharge properties while being less susceptible to an extensive internal short circuit and likely to provide proper assembly. The non-aqueous electrolyte secondary battery comprises a separator (13) placed between a positive electrode and a negative electrode. Separator (13) comprises a porous resin layer (60), and a porous heat-resistant layer (70) overlaid at least on a first face of resin layer (60). Heat-resistant layer (70) comprises a filler consisting of an inorganic material, and a binder. Heat-resistant layer (70) has a porosity of 55% or higher. Heat-resistant layer (70) exhibits a 90° peel strength of 2.9 N/m to 15.1 N/m to the resin layer (60).
摘要翻译： 本发明提供一种具有高放电特性的非水电解质二次电池，同时不易产生广泛的内部短路并且可能提供适当的组装。 非水电解质二次电池包括放置在正极和负极之间的隔膜（13）。 分离器（13）包括多孔树脂层（60）和至少覆盖在树脂层（60）的第一面上的多孔耐热层（70）。 耐热层（70）包括由无机材料和粘合剂组成的填料。 耐热层（70）的孔隙率为55％以上。 耐热层（70）对树脂层（60）的剥离强度为2.9N / m〜15.1N / m。
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公开(公告)号：US20130252056A1
公开(公告)日：2013-09-26
申请号：US13989428
申请日：2010-11-26
申请人： Tomoyoshi Ueki , Naoyuki Wada , Yoshiyuki Ozaki
发明人： Tomoyoshi Ueki , Naoyuki Wada , Yoshiyuki Ozaki
IPC分类号： H01M2/16
摘要： The present invention provides an optimal non-aqueous electrolyte secondary battery having high durability against high rate charging and discharging and excellent safety. The non-aqueous electrolyte secondary battery 100 according to the present invention comprises a positive electrode 10, a negative electrode 20 and a separator 30 which is interposed between the positive electrode 10 and the negative electrode 20. The separator 30 has a two-layer structure which is composed of a porous polyethylene layer 34 mainly composed of polyethylene, and a porous polymer layer 32 mainly composed of a polymer having higher oxidation resistance than that of the polyethylene, and an inorganic filler layer 40 including an inorganic filler and a binder is formed on the surface of the polyethylene layer 34 on which the porous polymer layer 32 is not formed.
摘要翻译： 本发明提供了一种对高速充放电具有高耐久性和优异安全性的最佳非水电解质二次电池。 根据本发明的非水电解质二次电池100包括正极10，负极20和介于正极10和负极20之间的隔板30.隔板30具有两层结构 其由主要由聚乙烯形成的多孔聚乙烯层34和主要由聚乙烯的抗氧化性高的聚合物构成的多孔聚合物层32形成，并且形成包含无机填料和粘合剂的无机填料层40 在其上未形成多孔聚合物层32的聚乙烯层34的表面上。
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10.发明申请NONAQUEOUS ELECTROLYTE TYPE LITHIUM ION SECONDARY BATTERY SYSTEM, METHOD OF DETERMINING LITHIUM DEPOSITION IN THE SYSTEM, AND VEHICLE MOUNTING THE SYSTEM 有权非电解电解质锂离子二次电池系统，确定系统中锂离子沉积的方法和车辆安装系统公开(公告)号：US20120179398A1
公开(公告)日：2012-07-12
申请号：US13055738
申请日：2009-10-01
申请人： Tomoyoshi Ueki , Mariko Sumi , Masaya Takahashi , Hiroe Takenaka , Mika Okubo
发明人： Tomoyoshi Ueki , Mariko Sumi , Masaya Takahashi , Hiroe Takenaka , Mika Okubo
IPC分类号： G01R31/36
CPC分类号： H01M10/0525 , G01R31/3651 , H01M10/48 , Y02E60/122 , Y02T10/7011
摘要： It is arranged to obtain charging voltage when charging voltage is applied to a nonaqueous electrolyte type lithium ion secondary battery and discharging voltage when a discharging current is generated by the battery. A coefficient of a quadratic term of an approximated curve of a quadratic function with respect to changes in value within a sampling period for each of the charging voltage and the discharging voltage is calculated. This calculation is repeated over a plurality of the sampling periods. Based on occurrence situations of symmetry phenomenon and intersection phenomenon in the calculated coefficients, it can be determined whether or not there is a possibility of lithium deposition without disassembling the battery.
摘要翻译： 当对非水电解质型锂离子二次电池施加充电电压并且当电池产生放电电流时，其放电电压被设置为获得充电电压。 计算相对于每个充电电压和放电电压的采样周期内的值的变化的二次函数的近似曲线的二次项的系数。 在多个采样周期中重复该计算。 根据计算出的系数中的对称现象和交点现象的发生情况，可以确定在不拆卸电池的情况下是否存在锂沉积的可能性。
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