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公开(公告)号：US20080248394A1
公开(公告)日：2008-10-09
申请号：US12149199
申请日：2008-04-29
申请人： Kaoru Inoue , Kiyomi Kato , Kohei Suzuki , Shigeo Ikuta , Yusuke Fukumoto , Tetsuya Hayashi
发明人： Kaoru Inoue , Kiyomi Kato , Kohei Suzuki , Shigeo Ikuta , Yusuke Fukumoto , Tetsuya Hayashi
IPC分类号： H01M4/62
CPC分类号： H01M2/1673 , H01M2/1653 , H01M2/168 , H01M2/1686 , H01M4/131 , H01M4/133 , H01M10/0525 , H01M10/4235
摘要： A non-aqueous electrolyte secondary battery including: a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; a non-aqueous electrolyte; and a porous insulating film adhered to a surface of at least one selected from the group consisting of the positive electrode and the negative electrode, the porous insulating film including an inorganic oxide filler and a film binder, wherein the ratio R of actual volume to apparent volume of the separator is not less than 0.4 and not greater than 0.7, and wherein the ratio R and a porosity P of the porous insulating film satisfy the relational formula: −0.10≦R−P≦0.30.
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公开(公告)号：US20060248710A1
公开(公告)日：2006-11-09
申请号：US10550149
申请日：2005-02-17
申请人： Yusuke Fukumoto , Tsumoru Ohata , Tetsuya Hayashi
发明人： Yusuke Fukumoto , Tsumoru Ohata , Tetsuya Hayashi
IPC分类号： H01M10/04
CPC分类号： H01M4/364 , B05C1/0826 , H01M4/0404 , H01M4/0414 , H01M4/131 , H01M4/133 , H01M4/139 , H01M4/1391 , H01M4/366 , H01M4/525 , H01M4/621 , H01M10/0525 , H01M10/058 , H01M10/0587 , H01M2300/004 , Y10T29/49108 , Y10T29/49115
摘要： A method for producing lithium ion secondary batteries includes the steps of: (A) preparing an electrode sheet with lead-forming parts, (B) intermittently forming porous insulating layers containing an inorganic oxide filler and a binder on a surface of the electrode sheet excluding the lead-forming parts, (C) connecting a lead to each of the lead-forming parts, and (D) fabricating batteries by using the electrode sheet to which the leads are connected. The step B includes: the step of applying a slurry containing the inorganic oxide filler and the binder to the outer surface of a gravure roll, and transferring the slurry applied to the outer surface of the gravure roll on a surface of the electrode sheet that is being transported by a plurality of guide rolls excluding the lead-forming part; and the step of moving at least one selected from the gravure roll and the guide rolls to make the electrode sheet away from the gravure roll in the lead-forming part.
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公开(公告)号：US20150221919A1
公开(公告)日：2015-08-06
申请号：US14356458
申请日：2011-11-10
CPC分类号： H01M2/1653 , H01M2/18 , H01M2/34 , H01M10/0431 , H01M10/0587
摘要： A battery includes a flat wound electrode body formed by winding a positive electrode sheet and a negative electrode sheet with a separator interposed therebetween into a flat shape. The separator has an outer edge adjacent portion adjacent to either an outer edge of a positive electrode active material layer or an outer edge of a negative electrode active material layer. In a curve positioned portion disposed at least in a curved portion of the flat wound electrode body, the outer edge adjacent portion has a suppression portion for suppressing the occurrence or development of a crack.
摘要翻译： 电池包括通过将正电极片和隔膜插入其间的负极片卷绕成平坦形状而形成的扁平卷绕电极体。 隔板具有与正极活性物质层的外缘或负极活性物质层的外缘相邻的外缘相邻部。 在至少设置在扁平卷绕电极体的弯曲部分中的曲线定位部分中，外边缘相邻部分具有抑制裂纹发生或发展的抑制部分。
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公开(公告)号：US20140272534A1
公开(公告)日：2014-09-18
申请号：US14357580
申请日：2011-11-15
IPC分类号： H01M2/16
CPC分类号： H01M2/1686 , H01M2/1646 , H01M2/166 , H01M2/1673 , H01M10/052 , H01M10/4235
摘要： The nonaqueous electrolyte secondary battery of the present invention has a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte solution. The battery further has a porous heat-resistant layer provided between the separator and at least one of the positive electrode and the negative electrode, wherein the porous heat-resistant layer includes an inorganic filler and a binder. The inorganic filler included in the porous heat-resistant layer has a particle size distribution with two peaks, which are a first peak (P1) at a relatively small particle diameter and a second peak (P2) at a relatively large particle diameter. When the particle diameter of the first peak (P1) is D1 be and the particle diameter of the second peak (P2) is D2 being, the peak particle diameter ratio D1/D2 satisfies the condition 0.2≦D1/D2≦0.7.
摘要翻译： 本发明的非水电解质二次电池具有正极，负极，夹在正极和负极之间的隔膜和非水电解质溶液。 电池还具有设置在隔板与正电极和负电极中的至少一个之间的多孔耐热层，其中多孔耐热层包括无机填料和粘合剂。 包含在多孔耐热层中的无机填料具有两个峰的粒度分布，两个峰是相对较小粒径的第一峰（P1）和较大粒径的第二峰（P2）。 当第一峰（P1）的粒径为D1，第二峰（P2）的粒径为D2时，峰值粒径比D1 / D2满足条件0.2＆lt; N1; D1 / D2＆nlE; 0.7。
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公开(公告)号：US20140154583A1
公开(公告)日：2014-06-05
申请号：US14234697
申请日：2011-07-25
IPC分类号： H01M10/658
CPC分类号： H01M10/625 , H01M2/1666 , H01M2/1673 , H01M10/052 , Y02T10/7011
摘要： A nonaqueous electrolyte secondary battery 100 according to this invention includes a positive electrode 10, a negative electrode 20, a separator 40 interposed between the positive electrode 10 and the negative electrode 20, and a nonaqueous electrolyte solution. A porous heat-resistant layer 42 is additionally provided between the separator 40 and at least one electrode from among the positive electrode 10 and the negative electrode 20. The porous heat-resistant layer 42 includes hollow particles 44 made of an inorganic material, and a binder 46.
摘要翻译： 根据本发明的非水电解质二次电池100包括正极10，负极20，介于正极10和负极20之间的隔板40和非水电解质溶液。 在隔板40和正极10和负极20之间的至少一个电极之间另外设有多孔耐热层42.多孔耐热层42包括由无机材料制成的中空颗粒44和 粘合剂46。
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公开(公告)号：US20140023908A1
公开(公告)日：2014-01-23
申请号：US14008449
申请日：2011-03-28
IPC分类号： H01M2/16
CPC分类号： H01M2/1686 , H01M2/166 , H01M10/0525 , H01M2220/20 , Y02E60/122
摘要： The lithium-ion secondary battery 100 includes: a positive electrode current collector 221; a positive electrode active material layer 223 held on the positive electrode current collector 221; a negative electrode current collector 241; and a negative electrode active material layer 243 that is held on the negative electrode current collector 241 and covers the positive electrode active material layer 223. A separator substrate 265 formed of a porous resin sheet is disposed between the positive electrode active material layer 223 and the negative electrode active material layer 243. The separator substrate 265 holds a heat-resistant layer 266. The heat-resistant layer 266 contains an inorganic filler, a binder and a thickener. The weight ratio P between the binder and the thickener (binder/thickener) in the heat-resistant layer is P
摘要翻译： 锂离子二次电池100包括：正极集电体221; 保持在正极集电体221上的正极活性物质层223; 负极集电体241; 以及负极活性物质层243，其被保持在负极集电体241上并覆盖正极活性物质层223.由多孔树脂片形成的隔板基板265配置在正极活性物质层223和 负极活性物质层243。隔板基板265保持耐热层266.耐热层266含有无机填料，粘合剂和增稠剂。 粘合剂与增粘剂（粘合剂/增稠剂）之间的重量比P在耐热层中为P <7.2。
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公开(公告)号：US20130216893A1
公开(公告)日：2013-08-22
申请号：US13879034
申请日：2010-10-13
IPC分类号： H01M2/16
CPC分类号： H01M2/1686 , H01M10/052
摘要： A nonaqueous electrolyte lithium secondary battery obtained by the present invention has a separator and a porous layer which contains an inorganic filler and a binder and which is formed on the separator, wherein a thickness of the separator ranges from 12 μm to 18 μm, a porosity of the separator ranges from 52% to 67%, a thickness of the porous layer ranges from 3 μm to 15 μm, a porosity of the porous layer ranges from 44% to 70%, and the porous layer-attached separator exhibits a film resistance equal to or lower than 1.35 Ω·cm2 when impregnated with an electrolyte solution.
摘要翻译： 通过本发明获得的非水电解质锂二次电池具有隔板和多孔层，其包含无机填料和粘合剂，并且形成在隔板上，其中隔板的厚度为12μm至18μm，孔隙率 的隔膜的范围为52％〜67％，多孔层的厚度为3μm〜15μm，多孔层的孔隙率为44％〜70％，多孔层附着隔膜的膜电阻 当用电解质溶液浸渍时，其等于或低于1.35Ω·cm 2。
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48.发明授权公开(公告)号：US08334076B2
公开(公告)日：2012-12-18
申请号：US11791366
申请日：2005-09-28
申请人： Kaoru Inoue , Yusuke Fukumoto
发明人： Kaoru Inoue , Yusuke Fukumoto
CPC分类号： H01M4/131 , H01M2/1673 , H01M2/1686 , H01M4/0404 , H01M4/0471 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M4/62 , H01M4/621 , H01M10/0525 , Y10T29/49115
摘要： The present invention relates to an improvement in a lithium ion secondary battery including a positive electrode, a negative electrode, a separator, a non-aqueous electrolyte, and a porous film formed on at least one electrode surface. The porous film includes inorganic compound particles and polyvinylidene fluoride. The viscosity of the N-methyl-2-pyrrolidone solution dissolving 8 wt % polyvinylidene fluoride is 600 to 2400 mPa·s at 25° C., and the amount of the polyvinylidene fluoride in the porous film is 1 to 10 parts by weight per 100 parts by weight of the inorganic compound particles.
摘要翻译： 本发明涉及在至少一个电极表面上形成的包括正极，负极，隔膜，非水电解质和多孔膜的锂离子二次电池的改进。 多孔膜包括无机化合物颗粒和聚偏二氟乙烯。 在25℃下溶解8重量％聚偏二氟乙烯的N-甲基-2-吡咯烷酮溶液的粘度为600〜2400mPa·s，多孔膜中的聚偏二氟乙烯的量为1〜10重量份 100重量份的无机化合物颗粒。
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公开(公告)号：US08119291B2
公开(公告)日：2012-02-21
申请号：US12149197
申请日：2008-04-29
申请人： Kaoru Inoue , Kiyomi Kato , Kohei Suzuki , Shigeo Ikuta , Yusuke Fukumoto , Tetsuya Hayashi
发明人： Kaoru Inoue , Kiyomi Kato , Kohei Suzuki , Shigeo Ikuta , Yusuke Fukumoto , Tetsuya Hayashi
IPC分类号： H01M2/16
CPC分类号： H01M2/1673 , H01M2/1653 , H01M2/168 , H01M2/1686 , H01M4/131 , H01M4/133 , H01M10/0525 , H01M10/4235
摘要： A non-aqueous electrolyte secondary battery including: a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; a non-aqueous electrolyte; and a porous insulating film adhered to a surface of at least one selected from the group consisting of the positive electrode and the negative electrode, the porous insulating film including an inorganic oxide filler and a film binder, wherein the ratio R of actual volume to apparent volume of the separator is not less than 0.4 and not greater than 0.7, and wherein the ratio R and a porosity P of the porous insulating film satisfy the relational formula: −0.10≦R−P≦0.30.
摘要翻译： 一种非水电解质二次电池，包括：正极; 负极; 夹在正极和负极之间的隔膜; 非水电解质; 以及粘附到从由正极和负极组成的组中选择的至少一个的表面的多孔绝缘膜，所述多孔绝缘膜包括无机氧化物填料和膜粘合剂，其中实际体积与表观的比率R 隔膜的体积不小于0.4且不大于0.7，并且其中多孔绝缘膜的比率R和孔隙率P满足关系式：-0.10＆nlE; R-P＆nlE; 0.30。
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公开(公告)号：US20080274399A1
公开(公告)日：2008-11-06
申请号：US12213504
申请日：2008-06-20
IPC分类号： H01M2/16
CPC分类号： H01M4/624 , H01M2/166 , H01M2/1673 , H01M4/13 , H01M4/366 , H01M4/62 , H01M10/0525 , H01M2004/021
摘要： A secondary battery includes: a positive electrode; a negative electrode; a porous electron-insulating layer adhered to a surface of at least one selected from the group consisting of the positive electrode and the negative electrode; and an electrolyte. The porous electron-insulating layer comprises a particulate filler and a resin binder, and the particulate filler comprises an indefinite-shape particle comprising a plurality of primary particles that are joined to one another. A neck is preferably formed between the primary particles. Since the porous electron-insulating layer has high porosity, it is possible to obtain a secondary battery that exhibits excellent low-temperature characteristics, which are particularly important in actual use, and that is capable of discharging at a large current.
摘要翻译： 二次电池包括：正极; 负极; 粘附到从由正极和负极组成的组中选择的至少一个的表面的多孔电子绝缘层; 和电解质。 多孔电绝缘层包括颗粒填料和树脂粘合剂，并且颗粒填料包括包含彼此连接的多个一次颗粒的不定形颗粒。 优选在一次粒子之间形成颈部。 由于多孔电绝缘层具有高孔隙率，所以可以获得在实际应用中特别重要的且具有大电流放电的低温特性优异的二次电池。
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