公开(公告)号：US08182945B2

公开(公告)日：2012-05-22

申请号：US12167600

申请日：2008-07-03

申请人： Yasutaka Kogetsu ,  Tatsuki Hiraoka ,  Takuhiro Nishimura

发明人： Yasutaka Kogetsu ,  Tatsuki Hiraoka ,  Takuhiro Nishimura

IPC分类号： H01M4/64 ,  H01M4/02

CPC分类号： H01M4/70 ,  H01M4/02 ,  H01M4/134 ,  H01M4/661 ,  H01M4/78 ,  H01M10/052 ,  H01M2004/021

摘要： A current collector includes a substrate, a plurality of projections formed on a first portion of the substrate, and at least two adjacent minute projections formed on a second portion of the substrate. The substrate is a metal sheet. The first and second portions are formed on the surface of the substrate. The second portion includes 2 to 100 of minute projections. The minute projections have a height of below 35% of the average height of the plurality of projections. By forming an electrode active material layer on the face of the current collector where the plurality of projections are formed to make an electrode, the detachment of the electrode active material layer, and the spread of the detachment are significantly curbed.

摘要翻译： 集电器包括基板，形成在基板的第一部分上的多个突起以及形成在基板的第二部分上的至少两个相邻的微小突起。 基板是金属板。 第一和第二部分形成在基板的表面上。 第二部分包括2到100个微小的投影。 微小突起具有低于多个突起的平均高度的35％的高度。 通过在形成有多个突起的集电体的表面上形成电极活性物质层来形成电极，电极活性物质层的分离和分离的扩散被明显地抑制。

公开(公告)号：US20100112452A1

公开(公告)日：2010-05-06

申请号：US12532355

申请日：2008-10-27

申请人： Takuhiro Nishimura ,  Yasutaka Kogetsu ,  Takashi Nonoshita ,  Tatsuki Hiraoka

发明人： Takuhiro Nishimura ,  Yasutaka Kogetsu ,  Takashi Nonoshita ,  Tatsuki Hiraoka

IPC分类号： H01M4/58 ,  H01M4/02

CPC分类号： H01M4/78 ,  H01M4/661 ,  H01M4/664 ,  H01M4/667 ,  H01M10/052 ,  Y10T29/49108 ,  Y10T29/49115

摘要： The invention relates to a battery current collector including a metal foil for carrying at least a positive electrode active material or a negative electrode active material. At least one side of the metal foil has a compressed base plane and non-compressed protrusions arranged at a predetermined interval, and the non-compressed protrusions are formed at the same time as formation of the base plane. The surface roughness of the base plane is different from the surface roughness of the protrusions, and the surface roughness of the base plane is preferably an arithmetic mean roughness of 0.8 μm or less.

摘要翻译： 本发明涉及一种电池集电体，其包括至少携带正极活性物质或负极活性物质的金属箔。 金属箔的至少一侧具有以预定间隔排列的压缩基面和非压缩突起，并且在形成基面的同时形成非压缩突起。 基面的表面粗糙度与突起的表面粗糙度不同，基面的表面粗糙度优选为0.8μm以下的算术平均粗糙度。

公开(公告)号：US09153817B2

公开(公告)日：2015-10-06

申请号：US13320464

申请日：2011-04-26

申请人： Tatsuki Hiraoka ,  Taisuke Yamamoto ,  Katsumi Kashiwagi ,  Masaya Ugaji

发明人： Tatsuki Hiraoka ,  Taisuke Yamamoto ,  Katsumi Kashiwagi ,  Masaya Ugaji

IPC分类号： H01M4/62 ,  H01M4/134 ,  H01M10/052 ,  H01M10/0566

CPC分类号： H01M4/134 ,  H01M4/621 ,  H01M10/052 ,  H01M10/0566 ,  Y02E60/122 ,  Y02T10/7011

摘要： Disclosed is a lithium ion secondary battery including: a positive electrode including a positive electrode active material layer comprising a positive electrode active material capable of absorbing and releasing lithium ions, and a positive electrode current collector; a negative electrode including a negative electrode active material layer comprising an alloy-formable active material, and a negative electrode current collector; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode active material layer has an easily swellable resin having a degree of swelling with the non-aqueous electrolyte of 20% or more, and the negative electrode active material layer has a hardly swellable resin having a degree of swelling with the non-aqueous electrolyte of less than 20%.

摘要翻译： 公开了一种锂离子二次电池，其包括：正极，包括具有能够吸收和释放锂离子的正极活性物质的正极活性物质层和正极集电体; 包括含有可合金成形的活性物质的负极活性物质层的负极和负极集电体; 夹在正极和负极之间的隔膜; 和非水电解质。 正极活性物质层具有非水电解质溶胀度容易溶胀的树脂20％以上，负极活性物质层具有难溶胀性的树脂，其膨润度为非水性 电解质小于20％。

公开(公告)号：US20110267001A1

公开(公告)日：2011-11-03

申请号：US13122096

申请日：2010-06-15

申请人： Tatsuki Hiraoka ,  Masaya Ugaji ,  Taisuke Yamamoto ,  Katsumi Kashiwagi

发明人： Tatsuki Hiraoka ,  Masaya Ugaji ,  Taisuke Yamamoto ,  Katsumi Kashiwagi

IPC分类号： H02J7/04 ,  H02J7/00

CPC分类号： H02J7/0086 ,  H01M10/0525 ,  H01M10/441 ,  H02J7/0013

摘要： In a charging method for a non-aqueous electrolyte secondary battery which includes a positive electrode including a lithium-containing composite oxide as an active material, a negative electrode including an alloy-formable negative electrode active material, and a non-aqueous electrolyte, a voltage of the secondary battery is detected. When the detected value is smaller than a predetermined voltage x, charging is performed at a comparatively small current value B. When the detected value is equal to or greater than the predetermined voltage x and smaller than a predetermined voltage z, charging is performed at a comparatively great current value A. When the detected value is equal to or greater than the predetermined voltage z and smaller than a predetermined voltage y, charging is performed at a comparatively small current value C. When the detected value is greater than the predetermined voltage y, constant-voltage charging is performed or charging is terminated. Here, x

摘要翻译： 在包括含有作为活性物质的含锂复合氧化物的正极的非水电解质二次电池的充电方法中，包含合金成形性负极活性物质的负极和非水电解质， 检测到二次电池的电压。 当检测值小于预定电压x时，以比较小的电流值B进行充电。当检测值等于或大于预定电压x并小于预定电压z时，在 相对较大的电流值A.当检测值等于或大于预定电压z且小于预定电压y时，以相对较小的电流值C进行充电。当检测值大于预定电压y ，执行恒压充电或终止充电。 这里，x

公开(公告)号：US20130232773A1

公开(公告)日：2013-09-12

申请号：US13884836

申请日：2011-11-28

申请人： Kunihiko Mineya ,  Tatsuki Hiraoka

发明人： Kunihiko Mineya ,  Tatsuki Hiraoka

IPC分类号： H01M10/0587

CPC分类号： H01M10/0587 ,  H01M2/1673 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49115

摘要： A positive electrode plate 5, a separator 7, and a negative electrode plate 6 are prepared. The positive electrode plate 5, the separator 7, and the negative electrode plate 6 are combined so as to form a spirally-wound electrode assembly 4. A winding end portion 9 of the electrode assembly 4 is fixed with a heat-sensitive adhesive (preferably, a heat-sensitive adhesive tape 10) whose adhesive force can be reduced by heating or cooling. The electrode assembly 4 is placed in an outer casing 1, and then the ambient temperature of the electrode assembly 4 is adjusted so that the electrode assembly 4 is loosened due to reduction in the adhesive force of the heat-sensitive adhesive. An electrolyte solution is injected into the outer casing 1.

摘要翻译： 准备正极板5，隔板7和负极板6。 正极板5，隔板7和负极板6组合形成螺旋卷绕的电极组件4.电极组件4的绕组端部9用热敏粘合剂（优选地 ，热敏粘合带10），其粘合力可以通过加热或冷却而降低。 将电极组件4放置在外壳1中，然后调节电极组件4的环境温度，使得电极组件4由于热敏粘合剂的粘合力的降低而松动。 将电解质溶液注入到外壳1中。

公开(公告)号：US20120208084A1

公开(公告)日：2012-08-16

申请号：US13502068

申请日：2011-04-26

申请人： Tatsuki Hiraoka ,  Taisuke Yamamoto ,  Katsumi Kashiwagi ,  Masaya Ugaji

发明人： Tatsuki Hiraoka ,  Taisuke Yamamoto ,  Katsumi Kashiwagi ,  Masaya Ugaji

IPC分类号： H01M4/70 ,  H01M4/66 ,  H01M4/64

CPC分类号： H01M4/70 ,  H01M4/134 ,  H01M4/386 ,  H01M4/387 ,  H01M4/622 ,  H01M10/052

摘要： A negative electrode for lithium ion secondary batteries, including: a negative electrode current collector having a plurality of protrusions formed on a surface thereof; and a plurality of granular bodies, the granular bodies being supported on the protrusions, respectively, and including an alloy-formable active material capable of absorbing and releasing lithium ions, wherein: the granular bodies have a resin layer on their respective surfaces; and the resin layer includes a first resin component which is at least one selected from polyimides and polyacrylic acid, and a second resin component which is composed of a copolymer including vinylidene fluoride units and hexafluoropropylene units. A lithium ion secondary battery including the above negative electrode.

摘要翻译： 1.一种锂离子二次电池用负极，其特征在于，具备：在其表面形成有多个突起的负极集电体; 以及多个粒状体，所述粒状体分别被支撑在所述突起上，并且包括能够吸收和释放锂离子的合金可形成的活性物质，其中：所述粒状体在其各自表面上具有树脂层; 树脂层包括选自聚酰亚胺和聚丙烯酸中的至少一种的第一树脂成分和由包含偏二氟乙烯单元和六氟丙烯单元的共聚物构成的第二树脂成分。 包括上述负极的锂离子二次电池。

公开(公告)号：US20110033735A1

公开(公告)日：2011-02-10

申请号：US12936353

申请日：2009-11-27

申请人： Masahiro Kinoshita ,  Masaya Ugaji ,  Taisuke Yamamoto ,  Tatsuki Hiraoka

发明人： Masahiro Kinoshita ,  Masaya Ugaji ,  Taisuke Yamamoto ,  Tatsuki Hiraoka

IPC分类号： H01M10/48

CPC分类号： H01M10/48 ,  H01M10/052 ,  Y02T10/7011

摘要： A battery pack 1 includes a battery 10, thickness detection means 11, cycle number detection means 12, and first determination means 13. The battery 10 is an alloy-type secondary battery having an electrode assembly 20 which includes a positive electrode, a negative electrode including an alloyable active material, and an insulating layer. The thickness detection means 11 detects the thickness of the electrode assembly 20 of the battery 10. The cycle number detection means 12 detects the number of charge and discharge cycles of the battery 10. The first determination means 13 determines the replacement time of the battery 10 according to the detection results by the thickness detection means 11 and the cycle number detection means 12. This configuration allows the battery pack including the alloy-type secondary battery to estimate the replacement time of the alloy-type secondary battery almost accurately, thereby enhancing the convenience of the battery pack.

摘要翻译： 电池组1包括电池10，厚度检测装置11，循环次数检测装置12和第一确定装置13.电池10是具有电极组件20的合金型二次电池，电极组件20包括正极，负极 包括合金性活性物质和绝缘层。 厚度检测装置11检测电池10的电极组件20的厚度。循环次数检测装置12检测电池10的充电和放电循环次数。第一确定装置13确定电池10的更换时间 根据厚度检测装置11和循环次数检测装置12的检测结果，这种结构允许包括合金型二次电池的电池组几乎准确地估计合金型二次电池的更换时间，从而提高 方便电池组。

公开(公告)号：US08945242B2

公开(公告)日：2015-02-03

申请号：US13884836

申请日：2011-11-28

申请人： Kunihiko Mineya ,  Tatsuki Hiraoka

发明人： Kunihiko Mineya ,  Tatsuki Hiraoka

IPC分类号： H01M6/00 ,  H01M2/00 ,  H01M2/02 ,  H01M10/0587 ,  H01M2/16 ,  H01M10/052

CPC分类号： H01M10/0587 ,  H01M2/1673 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49115

摘要： A positive electrode plate 5, a separator 7, and a negative electrode plate 6 are prepared. The positive electrode plate 5, the separator 7, and the negative electrode plate 6 are combined so as to form a spirally-wound electrode assembly 4. A winding end portion 9 of the electrode assembly 4 is fixed with a heat-sensitive adhesive (preferably, a heat-sensitive adhesive tape 10) whose adhesive force can be reduced by heating or cooling. The electrode assembly 4 is placed in an outer casing 1, and then the ambient temperature of the electrode assembly 4 is adjusted so that the electrode assembly 4 is loosened due to reduction in the adhesive force of the heat-sensitive adhesive. An electrolyte solution is injected into the outer casing 1.

摘要翻译： 准备正极板5，隔板7和负极板6。 正极板5，隔板7和负极板6组合形成螺旋卷绕的电极组件4.电极组件4的绕组端部9用热敏粘合剂（优选地 ，热敏粘合带10），其粘合力可以通过加热或冷却而降低。 将电极组件4放置在外壳1中，然后调节电极组件4的环境温度，使得电极组件4由于热敏粘合剂的粘合力的降低而松动。 将电解质溶液注入到外壳1中。

公开(公告)号：US20130082664A1

公开(公告)日：2013-04-04

申请号：US13389382

申请日：2011-05-02

申请人： Tatsuki Hiraoka ,  Taisuke Yamamoto ,  Katsumi Kashiwagi ,  Masaya Ugaji

发明人： Tatsuki Hiraoka ,  Taisuke Yamamoto ,  Katsumi Kashiwagi ,  Masaya Ugaji

IPC分类号： H02J7/00

CPC分类号： H02J7/0052 ,  H01M10/0525 ,  H01M10/443 ,  H01M10/486 ,  H02J7/0091 ,  Y02T10/7011

摘要： Charging of a lithium ion secondary battery including a positive electrode including a positive electrode active material capable of absorbing and releasing lithium ions, a negative electrode including a negative electrode active material being an alloy-formable active material capable of absorbing and releasing lithium ions, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte is performed. In charging, the remaining capacity and the temperature of the lithium ion secondary battery are detected, and the lithium ion secondary battery is charged until the battery voltage reaches a reference voltage E1 associated beforehand with the remaining capacity and the temperature.

摘要翻译： 对包括能够吸收和释放锂离子的正极活性物质的正极的锂离子二次电池的充电，包含能够吸收和释放锂离子的可合金形成的活性物质的负极活性物质的负极， 插入在正极和负极之间的隔膜和非水电解质。 在充电中，检测锂离子二次电池的剩余容量和温度，并且将锂离子二次电池充电直到电池电压达到与剩余容量和温度预先相关联的参考电压E1。

公开(公告)号：US20120176097A1

公开(公告)日：2012-07-12

申请号：US13496167

申请日：2010-09-17

申请人： Hideharu Takezawa ,  Kazuya Iwamoto ,  Taisuke Yamamoto ,  Masaya Ugaji ,  Tatsuki Hiraoka

发明人： Hideharu Takezawa ,  Kazuya Iwamoto ,  Taisuke Yamamoto ,  Masaya Ugaji ,  Tatsuki Hiraoka

IPC分类号： H02J7/00

CPC分类号： H01M10/052 ,  H01M4/386 ,  H01M4/525 ,  H01M10/0445 ,  H01M10/443 ,  H01M10/448 ,  H01M10/48 ,  H01M2010/4292 ,  H02J7/0086 ,  Y02E60/122 ,  Y02T10/7011

摘要： In a charge/discharge method for a positive-electrode active material in a lithium secondary battery, the lithium secondary battery includes a positive electrode containing a positive-electrode active material capable of occluding and releasing lithium ions, a negative electrode containing a negative-electrode active material capable of occluding and releasing lithium ions, a separator located between the positive electrode and the negative electrode, and an electrolyte having a lithium ion conductivity; and the positive-electrode active material contains a nickel-type lithium-containing complex oxide. The positive electrode, which has been charged, is discharged until having a first potential VDp1 which is no less than 2.7 V and no more than 3.4 V on a lithium metal basis, and then the discharge is finished. Owing to this, the charge/discharge cycle life can be improved while the capacity of the lithium secondary battery is secured.

摘要翻译： 在锂二次电池中的正极活性物质的充电/放电方法中，锂二次电池包括含有能够吸留和释放锂离子的正极活性物质的正极，含有负极的负极 能够吸留和释放锂离子的活性物质，位于正极和负极之间的隔膜和具有锂离子传导性的电解质; 正极活性物质含有镍系复合氧化物。 已经充电的正极被放电直到具有基于锂金属为2.7V以上且3.4V以下的第一电位VDp1，然后放电结束。 由此，能够确保充电/放电循环寿命，同时确保锂二次电池的容量。