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    Method for fabricating lithium ion secondary battery
    4.
    发明授权
    Method for fabricating lithium ion secondary battery 失效
    锂离子二次电池的制造方法

    公开(公告)号：US07252689B2

    公开(公告)日：2007-08-07

    申请号：US10378610

    申请日：2003-03-05

    申请人： Akiko Fujino ,  Shinji Nakanishi ,  Hizuru Koshina

    发明人： Akiko Fujino ,  Shinji Nakanishi ,  Hizuru Koshina

    IPC分类号： H01M4/82 ,  H01M6/00 ,  H01M2/18

    CPC分类号： H01M10/0587 ,  H01M4/0402 ,  H01M4/0404 ,  H01M4/0416 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/0483 ,  H01M4/621 ,  H01M4/623 ,  H01M4/661 ,  H01M10/0525 ,  Y10T29/49108 ,  Y10T29/49112 ,  Y10T29/49115

    摘要： By using a winding type electrode plate assembly resistant to displacement by wind-up and buckling, a lithium ion secondary battery, capable of suppressing deterioration in cycle and storage characteristic caused by expansion and shrinkage of the electrode plate due to charge/discharge cycles or by generation of gas during storage at high temperatures or the like, is accomplished. An electrode plate A comprising a binder mainly composed of a polymer material “a” and an electrode plate B, having the opposite polarity to the electrode plate A, with a porous polymer layer mainly composed of the polymer material “a” or a copolymer of the polymer material “a” formed thereon, are wound up in flat form to give a flat electrode plate assembly, which is soaked in a non-aqueous electrolyte and then heated and cooled, with the soaked state maintained, while pressure is applied in the direction of the thickness of the flat electrode plate assembly, to integrate the electrode plate assembly.

    摘要翻译： 通过使用通过卷绕和弯曲来抵抗位移的绕组式电极板组件，能够抑制由于充电/放电循环引起的电极板的膨胀和收缩引起的循环损耗和存储特性的锂离子二次电池，或者由 在高温储存期间产生气体等。 包括主要由聚合物材料“a”组成的粘合剂的电极板A和与电极板A具有相反极性的电极板B和主要由聚合物材料“a”组成的多孔聚合物层或共聚物 形成在其上的聚合物材料“a”以扁平形式卷绕，得到平坦的电极板组件，其浸泡在非水电解质中，然后加热和冷却，同时保持浸泡状态，同时施加压力 平板电极板组件的厚度方向，以整合电极板组件。

    Lithium secondary battery
    5.
    发明申请
    Lithium secondary battery 审中-公开
    锂二次电池

    公开(公告)号：US20060281006A1

    公开(公告)日：2006-12-14

    申请号：US10555447

    申请日：2004-11-16

    申请人： Akiko Fujino ,  Tsumoru Ohata

    发明人： Akiko Fujino ,  Tsumoru Ohata

    IPC分类号： H01M2/16

    CPC分类号： H01M10/0525 ,  H01M2/162 ,  H01M2/1673 ,  H01M2/168 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M10/0587 ,  H01M2300/004

    摘要： A lithium secondary battery includes: a positive electrode comprising a composite lithium oxide; a negative electrode comprising a material capable of absorbing and desorbing lithium; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The separator comprises non-woven fabric. At least one of the positive electrode and the negative electrode has a porous film that is adhered to a surface thereof, and the porous film comprises an inorganic oxide filler and a binder. The non-woven fabric preferably has a thickness of not less than 15 μm and not more than 50 μm. The non-woven fabric preferably has a melt-down temperature of 150° C. or more.

    摘要翻译： 锂二次电池包括：包含复合氧化锂的正极; 包含能够吸收和解吸锂的材料的负极; 夹在正极和负极之间的隔膜; 和非水电解质。 隔板包括无纺织物。 正极和负极中的至少一个具有粘附到其表面的多孔膜，并且多孔膜包括无机氧化物填料和粘合剂。 无纺布的厚度优选为15μm以上50μm以下。 优选无纺布的熔融温度为150℃以上。

    Lithium ion secondary battery
    7.
    发明授权
    Lithium ion secondary battery 有权
    锂离子二次电池

    公开(公告)号：US07745042B2

    公开(公告)日：2010-06-29

    申请号：US10577494

    申请日：2004-12-28

    申请人： Akiko Fujino ,  Tsumoru Ohata ,  Tetsuya Hayashi

    发明人： Akiko Fujino ,  Tsumoru Ohata ,  Tetsuya Hayashi

    IPC分类号： H01M2/14

    CPC分类号： H01M10/052 ,  H01M2/16 ,  H01M2/348 ,  H01M10/02

    摘要： A lithium ion secondary battery in which an abnormal overheat due to a short circuit of a current collecting portion of one electrode and an electrode material mixture of the other is prevented. The lithium ion secondary battery has: a positive electrode including a core material having a current collecting portion and a material mixture carrying portion and a material mixture layer carried thereon; a negative electrode including a core material having a current collecting portion and a material mixture carrying portion and a material mixture layer carried thereon; a separator and a porous electron-insulating layer including an inorganic oxide filler and a binder both interposed between the positive and negative electrodes; and a non-aqueous electrolyte. The insulating layer is carried on a region including surfaces of the positive electrode current collecting portion and material mixture layer, and/or a region including surfaces of the negative electrode current collecting portion and material mixture layer. The positive and negative electrodes are wound with the separator and the insulating layer interposed therebetween.

    摘要翻译： 防止了由于一个电极的集电部分的短路和另一个电极的电极材料混合物引起的异常过热的锂离子二次电池。 锂离子二次电池具有：正极，其具有芯材，该芯材具有集电部和材料混合物承载部以及承载在其上的材料混合层; 包括具有集电部分和材料混合物承载部分的芯材的负极和承载在其上的材料混合物层; 分离器和包含无机氧化物填料和粘合剂的多孔电子绝缘层，两者都介于正极和负极之间; 和非水电解质。 绝缘层被承载在包括正极集电部和复合层的表面的区域和/或包括负极集电部和材料混合层的表面的区域上。 正极和负极用隔板缠绕，绝缘层插入其间。

    Lithium ion secondary battery and method for manufacturing the same
    8.
    发明授权
    Lithium ion secondary battery and method for manufacturing the same 有权
    锂离子二次电池及其制造方法

    公开(公告)号：US07435507B2

    公开(公告)日：2008-10-14

    申请号：US10973431

    申请日：2004-10-27

    申请人： Tsumoru Ohata ,  Shigeo Ikuta ,  Akiko Fujino ,  Tetsuya Hayashi ,  Kohei Suzuki

    发明人： Tsumoru Ohata ,  Shigeo Ikuta ,  Akiko Fujino ,  Tetsuya Hayashi ,  Kohei Suzuki

    IPC分类号： H01M2/18 ,  H01M2/16

    CPC分类号： H01M4/13 ,  H01M2/18 ,  H01M4/62 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2004/021 ,  Y10T29/49108

    摘要： A lithium ion secondary battery has an electrode group including: a winding core; and a positive electrode and a negative electrode that are wound around the winding core. This electrode group does not have an independent separator between the positive and negative electrodes. A porous film is integrally formed on both sides of at least one of the positive electrode and the negative electrode. The negative electrode and the positive electrode are connected to the winding core by a negative electrode resin film and a positive electrode resin film, respectively. The use of such resin films makes it possible to reduce the breakage of the porous films and prevent a short-circuit between the positive and negative electrodes.

    摘要翻译： 锂离子二次电池具有电极组，包括：卷芯; 以及卷绕在卷芯上的正极和负极。 该电极组在正极和负极之间不具有独立的隔膜。 在正电极和负电极中的至少一个的两侧一体地形成多孔膜。 负极和正极分别通过负极树脂膜和正极树脂膜与绕线芯连接。 通过使用这种树脂膜，可以减少多孔膜的断裂，防止正极和负极之间的短路。

    Lithium Ion Secondary Battery And Method For Producing The Same
    9.
    发明申请
    Lithium Ion Secondary Battery And Method For Producing The Same 有权
    锂离子二次电池及其制造方法

    公开(公告)号：US20080038639A1

    公开(公告)日：2008-02-14

    申请号：US11578964

    申请日：2005-04-19

    申请人： Tsumoru Ohata ,  Junji Nakajima ,  Tetsuya Hayashi ,  Shigeo Ikuta ,  Akiko Fujino ,  Eitaro Nakamura

    发明人： Tsumoru Ohata ,  Junji Nakajima ,  Tetsuya Hayashi ,  Shigeo Ikuta ,  Akiko Fujino ,  Eitaro Nakamura

    IPC分类号： H01M4/04 ,  H01M10/40 ,  H01M4/62

    CPC分类号： H01M10/0567 ,  H01M4/0402 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/139 ,  H01M4/62 ,  H01M10/0525 ,  H01M2300/004 ,  Y10T29/49115

    摘要： A method for producing a lithium ion secondary battery includes the steps of: forming a positive electrode mixture layer on a positive electrode substrate to obtain a positive electrode; forming a negative electrode mixture layer on a negative electrode substrate to obtain a negative electrode; forming an electronically insulating porous film that is bonded to a surface of at least one of the positive electrode and the negative electrode; interposing a separator between the positive electrode and the negative electrode to form an electrode plate assembly; and impregnating the electrode plate assembly with a non-aqueous electrolyte. The step of forming a porous film includes the steps of: preparing a porous film paste that contains a film binder comprising a thermo-cross-linkable resin and a particulate filler; and applying the porous film paste onto a surface of at least one of the positive electrode and the negative electrode and heating the resultant applied film.

    摘要翻译： 锂离子二次电池的制造方法包括以下步骤：在正极基板上形成正极合剂层，得到正极; 在负极基板上形成负极合剂层，得到负极; 形成与所述正极和所述负极中的至少一个的表面接合的电子绝缘性多孔膜， 在正极和负极之间插入隔板以形成电极板组件; 并用非水电解质浸渍电极板组件。 形成多孔膜的步骤包括以下步骤：制备含有包含可热交联树脂和颗粒填料的膜粘合剂的多孔膜糊; 以及将所述多孔膜浆料涂布在所述正极和负极中的至少一个的表面上，并加热所得到的涂膜。