公开(公告)号：US08758917B2

公开(公告)日：2014-06-24

申请号：US13063000

申请日：2010-05-21

申请人： Taira Saito ,  Musashi Nakagane ,  Satoru Suzuki

发明人： Taira Saito ,  Musashi Nakagane ,  Satoru Suzuki

IPC分类号： H01M10/36

CPC分类号： H01M10/36 ,  H01M10/0431 ,  H01M10/0525 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

摘要： In a lithium-ion secondary battery (100), a battery case (300) has sidewalls (300A, 300B) facing toward side ends of a wound electrode body (200), the side ends being at opposite lateral sides of the positive electrode sheet (220), and of the sidewalls (300A, 300B), one of the sidewalls (300A) (positive-electrode-side sidewall) facing toward an uncoated portion (222) of the positive electrode sheet (220) is thicker than the other sidewall (300B) (negative-electrode-side sidewall). In other words, the relationship between the thickness A of the one sidewall (300A) facing toward the uncoated portion (222) of the positive electrode sheet (220) and the thickness B of the other sidewall (300B) is A>B.

摘要翻译： 在锂离子二次电池（100）中，电池壳体（300）具有朝向卷绕电极体（200）的侧端的侧壁（300A，300B），该侧端部位于正极片 （220）和侧面（300A，300B）中的一个侧壁（300A）（正电极侧壁）中的一个面对正极片（220）的未涂覆部分（222）的厚度比另一个厚 侧壁（300B）（负电极侧壁）。 换句话说，面向正极片（220）的未涂覆部分（222）的一个侧壁（300A）的厚度A与另一个侧壁（300B）的厚度B之间的关系为A> B。

公开(公告)号：US20130011709A1

公开(公告)日：2013-01-10

申请号：US13613485

申请日：2012-09-13

申请人： Taira Saito ,  Satoru Suzuki

发明人： Taira Saito ,  Satoru Suzuki

IPC分类号： H01M4/00

CPC分类号： H01M10/0587 ,  H01M2/263 ,  H01M4/13 ,  H01M10/0413 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2200/00 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02T10/7011

摘要： Disclosed is a nonaqueous electrolyte secondary battery which comprises a flat wound electrode body wherein a positive electrode plate, which comprises a positive electrode collector foil and a positive electrode active material layer, and a negative electrode plate, which comprises a negative electrode collector foil and a negative electrode active material layer, are wound up with a separator being interposed therebetween. The positive electrode plate has a collector cover layer that has electrical insulation properties and covers at least a part of a facing collector portion in the longitudinal direction in a positive electrode collector portion. The collector cover layer covers at least an innermost semi-cylindrical facing collector portion which forms the innermost part of the facing collector portion and has a half-cylindrical shape.

摘要翻译： 公开了一种非水电解质二次电池，其包括平面卷绕电极体，其中正极板包括正极集电体箔和正极活性物质层，负极板包括负极集电箔和 负极活性物质层之间夹有隔膜。 正极板具有电绝缘性，并且在正极集电体部中覆盖纵向的面对集电部的至少一部分的集电体覆盖层。 集电器覆盖层至少覆盖形成面对集电部分的最内部的半圆柱形的收集器部分，并具有半圆柱形形状。

公开(公告)号：US20070172741A1

公开(公告)日：2007-07-26

申请号：US11657731

申请日：2007-01-25

申请人： Taira Saito

发明人： Taira Saito

IPC分类号： H01M10/40 ,  H01M10/04

CPC分类号： H01M10/0565 ,  H01M2/0257 ,  H01M2/0277 ,  H01M2/0285 ,  H01M2/0287 ,  H01M10/052 ,  H01M2300/0085 ,  Y10T29/49108

摘要： An object of the present invention is to provide a non-aqueous electrolyte secondary cell that provides good wettability between the non-aqueous electrolyte and the separator and that is superior in cycle characteristics. This object is solved by a method for producing a non-aqueous electrolyte secondary cell, the cell having: an electrode assembly having a positive electrode, a negative electrode, and a separator located between the electrodes; and a non-aqueous electrolyte having an electrolytic salt and a non-aqueous solvent having a solvent with a dielectric constant of equal to or more than 30 at 25° C., the solvent being equal to or more than 50 volume %, the method having: adding in the non-aqueous electrolyte an isocyanate compound and a compound represented by R—(CH2—CH2—O—)nH where R is an alkyl derivative or a phenyl derivative, and n is an integer of equal to or more than 2; and allowing the two compounds to have an urethane bonding reaction therebetween.

摘要翻译： 本发明的目的是提供一种在非水电解质和隔膜之间提供良好的润湿性且循环特性优异的非水电解质二次电池。 该目的通过一种非水电解质二次电池的制造方法来解决，所述电池具有：具有正极，负极和位于电极之间的隔膜的电极组件; 和在25℃下具有介电常数等于或大于30的溶剂的电解质盐和非水溶剂的非水电解质，所述溶剂等于或大于50体积％，所述方法 具有：在非水电解质中加入异氰酸酯化合物和由R-（CH 2 CH 2 -CH 2 -O - ）n表示的化合物 > H，其中R是烷基衍生物或苯基衍生物，n是等于或大于2的整数; 并使两种化合物之间具有氨基甲酸酯键合反应。