公开(公告)号：US09413003B2

公开(公告)日：2016-08-09

申请号：US13574996

申请日：2011-07-07

申请人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao ,  Takashi Kawasaki

发明人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao ,  Takashi Kawasaki

IPC分类号： H01M4/583 ,  H01M4/00 ,  H01M4/48 ,  H01M4/13 ,  H01M4/58 ,  H01M4/62 ,  H01M4/587 ,  H01M4/36 ,  H01M4/38 ,  H01M4/1393 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/139 ,  H01M4/1395 ,  H01M4/133 ,  H01M4/134 ,  H01M10/052

CPC分类号： H01M4/483 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/48 ,  H01M4/5825 ,  H01M4/583 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  Y02E60/122

摘要： The present invention provides a negative-electrode material for a lithium secondary battery which has a very low resistance, allows the lithium secondary battery to be charged and discharged (high output) at a high current and have a high capacity, and achieve a cycle life to such an extent that the lithium secondary battery can be mounted on a vehicle. The electrode material is composed of (a) at least one active substance (4) selected from among a metal oxide containing metal therein and an alloy material each of which is coated with a carbon material and has a graphene phase or an amorphous phase (8) on at least a surface thereof, (b) a graphite-based carbon material (5) having the graphene phase or the amorphous phase on at least a surface thereof; and (c) carbon material (6) other than the graphite-based carbon material and having the graphene phase or the amorphous phase on at least a surface thereof. The active substance (4), the graphite-based carbon material (5), and the carbon material (6) other than the graphite-based carbon material fuse the graphene phase or the amorphous phase (8a, 8b) thereof together and bond them to each other to form a composite active substance (7) including composed of the active substance including one active substance selected from among the metal oxide containing the metal and the alloy material.

摘要翻译： 本发明提供了一种具有非常低电阻的锂二次电池用负极材料，使锂二次电池以高电流充放电（高输出）并具有高容量，并实现循环寿命 达到能够将锂二次电池安装在车辆上的程度。 电极材料由（a）至少一种选自含金属氧化物的活性物质（4）和各自涂覆有碳材料并具有石墨烯相或非晶相的合金材料（8 ），（b）至少在其表面上具有石墨烯相或非晶相的石墨基碳材料（5）; 和（c）除了石墨基碳材料之外的碳材料（6），并且在至少其表面上具有石墨烯相或非晶相。 活性物质（4），石墨基碳材料（5）和除了石墨基碳材料之外的碳材料（6）将石墨烯相或非晶相（8a，8b）熔合在一起并将它们结合 彼此形成复合活性物质（7），该复合活性物质（7）由包含选自含有金属的金属氧化物和合金材料的一种活性物质的活性物质构成。

公开(公告)号：US20120328923A1

公开(公告)日：2012-12-27

申请号：US13574996

申请日：2011-07-07

申请人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao ,  Takashi Kawasaki

发明人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao ,  Takashi Kawasaki

IPC分类号： H01M4/583 ,  H01M4/00 ,  B82Y30/00

CPC分类号： H01M4/483 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/48 ,  H01M4/5825 ,  H01M4/583 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  Y02E60/122

摘要： The present invention provides a negative-electrode material for a lithium secondary battery which has a very low resistance, allows the lithium secondary battery to be charged and discharged (high output) at a high current and have a high capacity, and achieve a cycle life to such an extent that the lithium secondary battery can be mounted on a vehicle. The electrode material is composed of (a) at least one active substance (4) selected from among a metal oxide containing metal therein and an alloy material each of which is coated with a carbon material and has a graphene phase or an amorphous phase (8) on at least a surface thereof, (b) a graphite-based carbon material (5) having the graphene phase or the amorphous phase on at least a surface thereof; and (c) carbon material (6) other than the graphite-based carbon material and having the graphene phase or the amorphous phase on at least a surface thereof. The active substance (4), the graphite-based carbon material (5), and the carbon material (6) other than the graphite-based carbon material fuse the graphene phase or the amorphous phase (8a, 8b) thereof together and bond them to each other to form a composite active substance (7) including composed of the active substance including one active substance selected from among the metal oxide containing the metal and the alloy material.

摘要翻译： 本发明提供了一种具有非常低电阻的锂二次电池用负极材料，使锂二次电池以高电流充放电（高输出）并具有高容量，并实现循环寿命 达到能够将锂二次电池安装在车辆上的程度。 电极材料由（a）至少一种选自含金属氧化物的活性物质（4）和各自涂覆有碳材料并具有石墨烯相或非晶相的合金材料（8 ），（b）至少在其表面上具有石墨烯相或非晶相的石墨基碳材料（5）; 和（c）除了石墨基碳材料之外的碳材料（6），并且在至少其表面上具有石墨烯相或非晶相。 活性物质（4），石墨基碳材料（5）和除了石墨基碳材料之外的碳材料（6）将石墨烯相或非晶相（8a，8b）熔合在一起并将它们结合 彼此形成复合活性物质（7），该复合活性物质（7）由包含选自含有金属的金属氧化物和合金材料的一种活性物质的活性物质构成。

公开(公告)号：US20150010798A1

公开(公告)日：2015-01-08

申请号：US14381542

申请日：2012-03-19

申请人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao ,  Jyunichi Ushimoto ,  Masahiko Ueta ,  Norihiro Wada

发明人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao ,  Jyunichi Ushimoto ,  Masahiko Ueta ,  Norihiro Wada

IPC分类号： H01M2/16 ,  H01M10/0525 ,  H01M4/587 ,  H01M10/04 ,  H01M4/133

CPC分类号： H01M2/1686 ,  H01M2/1613 ,  H01M2/162 ,  H01M2/1626 ,  H01M2/1653 ,  H01M2/1666 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587 ,  H01M2004/027

摘要： The present invention provides an electrolyte holder for a lithium secondary battery capable of holding an electrolytic solution inside electrodes or at an interface between the separator and each of the electrodes, preventing electrolyte shortage inside the electrodes, and restraining dendrite from precipitating and growing and also provide the lithium secondary battery, using the electrolyte holder, which is capable of achieving a cycle life to such an extent that the lithium secondary battery can be used for industrial application. An electrolyte holder (3) for use in the lithium secondary battery consists of a multi-layer structure having at least two hydrophilic fibrous layers (A, B) having different porosities. The electrolyte holder (3) is composed of an electrode group formed by winding a cathode (2) and an anode (1) or laminating the cathode (2) and the anode (1) one upon another with an electrolyte holder (3) serving as a separator interposed between the cathode (2) and the anode (1). The organic electrolytic solution is permeated into the electrode group or the electrode group is immersed in the organic electrolytic solution. A porosity (40% to 80%) of the fibrous layer (A) disposed at an interface between the fibrous layer (A) and the anode (1) is set smaller than a porosity (60% to 90%) of the fibrous layer (B) disposed at an interface between the fibrous layer (B) and the cathode (2). An average porosity of the entire fibrous layer is set to not less than 50%. The fibrous layers are formed by using cellulose fibers as a main material thereof. An active substance for use in the anode (1) is a carbon material.

摘要翻译： 本发明提供了一种用于锂二次电池的电解质保持器，其能够将电解液保持在电极内部或隔板与每个电极之间的界面处，防止电极内的电解质不足，并且抑制枝晶的沉淀和生长，并且还提供 使用电解质保持器的锂二次电池，其能够实现循环寿命，使得锂二次电池可以用于工业应用。 用于锂二次电池的电解质保持器（3）由具有至少两个具有不同孔隙率的亲水性纤维层（A，B）的多层结构组成。 电解质保持器（3）由通过将阴极（2）和阳极（1）缠绕而形成的电极组或层叠阴极（2）和阳极（1）的电极组合而成，电极保持器（3） 作为插入在阴极（2）和阳极（1）之间的隔膜。 将有机电解液渗透到电极组中，或者将电极组浸渍在有机电解液中。 设置在纤维层（A）和阳极（1）之间的界面处的纤维层（A）的孔隙率（40％至80％）被设定为小于纤维层的孔隙率（60％至90％） （B）设置在纤维层（B）和阴极（2）之间的界面处。 整个纤维层的平均孔隙率设定为不小于50％。 纤维层通过使用纤维素纤维作为其主要材料而形​​成。 用于阳极（1）的活性物质是碳材料。

公开(公告)号：US10230089B2

公开(公告)日：2019-03-12

申请号：US14381542

申请日：2012-03-19

申请人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao ,  Jyunichi Ushimoto ,  Masahiko Ueta ,  Norihiro Wada

发明人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao ,  Jyunichi Ushimoto ,  Masahiko Ueta ,  Norihiro Wada

IPC分类号： H01M2/16 ,  H01M4/133 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/02

摘要： The present invention provides an electrolyte holder for a lithium secondary battery capable of holding an electrolytic solution inside electrodes or at an interface between the separator and each of the electrodes, preventing electrolyte shortage inside the electrodes, and restraining dendrite from precipitating and growing and also provide the lithium secondary battery, using the electrolyte holder, which is capable of achieving a cycle life to such an extent that the lithium secondary battery can be used for industrial application. An electrolyte holder (3) for use in the lithium secondary battery consists of a multi-layer structure having at least two hydrophilic fibrous layers (A, B) having different porosities. The electrolyte holder (3) is composed of an electrode group formed by winding a cathode (2) and an anode (1) or laminating the cathode (2) and the anode (1) one upon another with an electrolyte holder (3) serving as a separator interposed between the cathode (2) and the anode (1). The organic electrolytic solution is permeated into the electrode group or the electrode group is immersed in the organic electrolytic solution. A porosity (40% to 80%) of the fibrous layer (A) disposed at an interface between the fibrous layer (A) and the anode (1) is set smaller than a porosity (60% to 90%) of the fibrous layer (B) disposed at an interface between the fibrous layer (B) and the cathode (2). An average porosity of the entire fibrous layer is set to not less than 50%. The fibrous layers are formed by using cellulose fibers as a main material thereof. An active substance for use in the anode (1) is a carbon material.

公开(公告)号：US09496583B2

公开(公告)日：2016-11-15

申请号：US13503629

申请日：2010-10-21

申请人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao

发明人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao

IPC分类号： H01M4/70 ,  H01M10/04 ,  H01M10/052 ,  H01M4/04 ,  H01M4/139 ,  H01M4/74 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587 ,  H01M4/66

CPC分类号： H01M10/058 ,  H01M4/0404 ,  H01M4/139 ,  H01M4/661 ,  H01M4/70 ,  H01M4/74 ,  H01M4/742 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/302

摘要： The present invention provides a method for producing a lithium secondary battery in which peeling of an active substance can be prevented and the generation of metal powder can be prevented when a power collection foil is processed at an electrode production step. The method for producing the lithium secondary battery includes an electrode-producing step of producing a positive electrode and a negative electrode; a step of forming a group of electrodes by layering the positive electrode and the negative electrode on each other through a separator, or winding the positive electrode and the negative electrode through a separator; and a step of immersing the group of the electrodes in an electrolyte. The electrode-producing step has a boring step of forming a plurality of through-holes penetrating a power collection foil and having projected parts projected from at least a rear surface of the power collection foil.

摘要翻译： 本发明提供了一种锂二次电池的制造方法，其中可以防止活性物质的剥离，并且在电极制备步骤处理电力收集箔时可以防止金属粉末的产生。 锂二次电池的制造方法包括：制造正极和负极的电极制造工序; 通过隔板将正极和负极层叠形成一组电极的步骤，或者通过隔板卷绕正极和负极; 以及将电极组浸入电解质中的步骤。 电极制造工序具有形成穿过集电箔的多个贯通孔并具有从集电箔的至少后表面突出的突出部的钻孔工序。

公开(公告)号：US20120210548A1

公开(公告)日：2012-08-23

申请号：US13503629

申请日：2010-10-21

申请人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao

发明人： Takehiko Sawai ,  Shinji Saito ,  Kazunori Urao

IPC分类号： H01M4/70 ,  H01M10/04

CPC分类号： H01M10/058 ,  H01M4/0404 ,  H01M4/139 ,  H01M4/661 ,  H01M4/70 ,  H01M4/74 ,  H01M4/742 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/302

摘要： The present invention provides a method for producing a lithium secondary battery in which peeling of an active substance can be prevented and the generation of metal powder can be prevented when a power collection foil is processed at an electrode production step. The method for producing the lithium secondary battery includes an electrode-producing step of producing a positive electrode and a negative electrode; a step of forming a group of electrodes by layering the positive electrode and the negative electrode on each other through a separator, or winding the positive electrode and the negative electrode through a separator; and a step of immersing the group of the electrodes in an electrolyte. The electrode-producing step has a boring step of forming a plurality of through-holes penetrating a power collection foil and having projected parts projected from at least a rear surface of the power collection foil and a mixed agent-forming step of forming a mixed agent layer on the power collection foil through which the through-holes have been formed. After the boring step finishes, the mixed agent-forming step is successively performed without winding the power collection foil through which the through-holes have been formed.

摘要翻译： 本发明提供了一种锂二次电池的制造方法，其中可以防止活性物质的剥离，并且在电极制备步骤处理电力收集箔时可以防止金属粉末的产生。 锂二次电池的制造方法包括：制造正极和负极的电极制造工序; 通过隔板将正极和负极层叠形成一组电极的步骤，或者通过隔板卷绕正极和负极; 以及将电极组浸入电解质中的步骤。 电极制造工序具有：形成穿过集电箔的多个贯通孔，并且具有从集电箔的至少后表面突出的突出部的镗孔步骤和形成混合剂的混合剂形成步骤 在通过其形成通孔的集电箔上。 在镗孔步骤完成之后，连续执行混合剂形成步骤，而不缠绕已形成通孔的集电箔。