公开(公告)号：EP2782170B1

公开(公告)日：2017-03-22

申请号：EP12850167.3

申请日：2012-11-14

申请人： Denka Company Limited ,  SEI Corporation

发明人： KAWASAKI, Takashi ,  YOSHINO, Nobuyuki ,  MURATA, Hiroshi ,  SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori

IPC分类号： H01M4/58 ,  H01M4/136 ,  H01M4/36 ,  H01M10/052 ,  H01M10/0566 ,  C01B25/45 ,  C01B32/05 ,  H01M4/62

CPC分类号： H01M4/364 ,  B82Y30/00 ,  C01B25/45 ,  C01B32/05 ,  H01M4/136 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  Y10S977/742 ,  Y10S977/948

公开(公告)号：EP3142180A2

公开(公告)日：2017-03-15

申请号：EP15789893.3

申请日：2015-07-07

申请人： Sei Corporation

发明人： SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori

IPC分类号： H01M10/0525 ,  H01M2/16 ,  H01M4/13 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/36 ,  H01M4/58 ,  H01M4/583 ,  H01M4/62 ,  H01M4/70 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585 ,  H01M10/0587

摘要： The present invention provides a lithium secondary battery for an ISS which can be discharged at not less than 20 ItA when temperature is -30 degrees centigrade and can be charged at not less than 50 ItA. The positive electrode material consists of a mixture of lithium-containing metal phosphate compound particles whose surfaces are coated with an amorphous carbon material and a conductive carbon material, in which atoms of the surface carbon materials are chemically bonded to one another. The negative electrode material contains at least one kind of particles selected from among graphite particles whose surfaces are coated with an amorphous carbon material, having a specific surface area of not less than 6m 2 /g and soft carbon particles. A mixed electrolyte contains lithium hexafluorophosphate and lithium bis fluorosulfonyl imide.

摘要翻译： 本发明提供了一种用于ISS的锂二次电池，其在-30℃以上时可以不低于20IAA放电，并且可以以不低于50IAT的电量充电。 正极材料由表面被无定形碳材料涂覆的含锂金属磷酸盐化合物颗粒和导电碳材料的混合物组成，其中表面碳材料的原子彼此化学键合。 负极材料含有选自表面涂布有比表面积不小于6m 2 / g的无定形碳材料的石墨颗粒和软碳颗粒中的至少一种颗粒。 混合电解质含有六氟磷酸锂和双氟磺酰基亚胺锂。

公开(公告)号：EP2822086A1

公开(公告)日：2015-01-07

申请号：EP12870046.5

申请日：2012-03-19

申请人： Sei Corporation ,  Nippon Kodoshi Corporation

发明人： SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori ,  USHIMOTO, Jyunichi ,  UETA, Masahiko ,  WADA, Norihiro

IPC分类号： H01M10/0587 ,  H01M2/16 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0585

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： 本发明提供一种锂二次电池用电解液保持体，该电解液保持体能够将电解液保持于电极内或隔膜与各电极的界面，防止电极内部的电解液不足，抑制枝晶的析出及生长，并且还提供 锂二次电池使用能够实现循环寿命的电解液保持器，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液保持器（3）由具有至少两个具有不同孔隙度的亲水性纤维层（A，B）的多层结构组成。 电解液保持器（3）由通过卷绕阴极（2）和阳极（1）而形成的电极组构成，或者通过电解液保持器（3）一个一个地层叠阴极（2）和阳极（1） 作为介于阴极（2）和阳极（1）之间的隔板。 有机电解液渗透到电极组中或者电极组浸没在有机电解液中。 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％）设定为小于纤维层（A）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：EP2764564A1

公开(公告)日：2014-08-13

申请号：EP12839054.9

申请日：2012-10-04

申请人： Hydro-Quebec ,  Sei Corporation

发明人： ZAGHIB, Karim ,  GUERFI, Abdelbast ,  HOVINGTON, Pierre ,  SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori

IPC分类号： H01M4/139 ,  H01M4/13 ,  H01M4/583 ,  H01M4/58 ,  H01M4/62

CPC分类号： H01M4/5825 ,  H01M4/0402 ,  H01M4/0428 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M4/623 ,  H01M4/625 ,  H01M4/661 ,  H01M10/052 ,  H01M2004/028 ,  H01M2220/20 ,  Y02E60/122

摘要： There is provided a positive-electrode material for a lithium secondary battery. The material comprises a lithium oxide compound or a complex oxide as reactive substance. The material also comprises at least one type of carbon material, and optionally a binder. A first type of carbon material is provided as a coating on the reactive substance particles surface. A second type of carbon material is carbon black. And a third type of carbon material is a fibrous carbon material provided as a mixture of at least two types of fibrous carbon material different in fiber diameter and/or fiber length. Also, there is provided a method for preparing the material as well as lithium secondary batteries comprising the material.

摘要翻译： 锂二次电池用正极材料。 该材料包括氧化锂化合物或作为反应物质的复合氧化物。 该材料还包括至少一种类型的碳材料和任选的粘合剂。 第一种类型的碳材料作为反应物质颗粒表面上的涂层提供。 第二种类型的碳材料是炭黑。 并且第三种类型的碳材料是作为纤维直径和/或纤维长度不同的至少两种类型的纤维状碳材料的混合物提供的纤维状碳材料。 另外，制备该材料的方法以及包含该材料的锂二次电池。

公开(公告)号：EP2698851A1

公开(公告)日：2014-02-19

申请号：EP11863482.3

申请日：2011-07-07

申请人： Sei Corporation ,  Denki Kagaku Kogyo Kabushiki Kaisha

发明人： SAWAI, Takehiko ,  SAITO, Shinji ,  URAO, Kazunori ,  KAWASAKI, Takashi

IPC分类号： H01M4/587 ,  H01M4/36 ,  H01M4/48 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0566 ,  H01M10/0587

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： 本发明提供用于锂二次电池的负极材料，其具有非常低的电阻，允许锂二次电池在高电流下充电和放电（高输出）并且具有高容量，并且实现循环寿命 达到锂二次电池可以安装在车辆上的程度。 电极材料由（a）至少一种选自含有金属的金属氧化物和合金材料中的至少一种活性物质（4），每种活性物质涂覆有碳材料并且具有石墨烯相或非晶相（8 ）的至少一个表面上;（b）在其至少一个表面上具有石墨烯相或非晶相的石墨系碳材料（5）; 和（c）石墨系碳材料以外的至少在其表面具有石墨烯相或非晶相的碳材料（6）。 石墨系碳材料以外的活性物质（4），石墨系碳材料（5）以及碳材料（6）将石墨烯相或非晶质相（8a，8b）熔合在一起， 以形成复合活性物质（7），所述复合活性物质（7）包括由包含选自含金属的金属氧化物和合金材料中的一种活性物质的活性物质