公开(公告)号：US07824801B2

公开(公告)日：2010-11-02

申请号：US11301027

申请日：2005-12-13

申请人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

发明人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

IPC分类号： H01M4/58 ,  H01M4/48

CPC分类号： H01M10/0525 ,  H01M4/0426 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0587 ,  H01M2004/027

摘要： A negative electrode for a lithium ion secondary battery including a current collector and an active material layer carried on the current collector, wherein the active material layer includes a first layer and a second layer alternately laminated in a thickness direction of the active material layer, and wherein the first layer includes silicon or silicon and a small amount of oxygen and the second layer includes silicon and a larger amount of oxygen than the first layer. With the use of the negative electrode, it is possible to provide a high capacity lithium ion secondary battery having excellent high rate charge/discharge characteristics and superior cycle characteristics.

摘要翻译： 1.一种锂离子二次电池用负极，其包含集电体和承载在集电体上的活性物质层的锂离子二次电池，其特征在于，所述活性物质层包括在活性物质层的厚度方向上交替层叠的第一层和第二层， 其中所述第一层包括硅或硅和少量的氧，并且所述第二层包括硅和比所述第一层更大量的氧。 通过使用负极，可以提供具有优异的高速率充放电特性和优异的循环特性的高容量锂离子二次电池。

公开(公告)号：US20060134518A1

公开(公告)日：2006-06-22

申请号：US11301027

申请日：2005-12-13

申请人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

发明人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

IPC分类号： H01M4/38 ,  H01M4/48 ,  H01M4/04

CPC分类号： H01M10/0525 ,  H01M4/0426 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0587 ,  H01M2004/027

摘要： A negative electrode for a lithium ion secondary battery including a current collector and an active material layer carried on the current collector, wherein the active material layer includes a first layer and a second layer alternately laminated in a thickness direction of the active material layer, and wherein the first layer includes silicon or silicon and a small amount of oxygen and the second layer includes silicon and a larger amount of oxygen than the first layer. With the use of the negative electrode, it is possible to provide a high capacity lithium ion secondary battery having excellent high rate charge/discharge characteristics and superior cycle characteristics.

摘要翻译： 1.一种锂离子二次电池用负极，其包含集电体和承载在集电体上的活性物质层的锂离子二次电池，其特征在于，所述活性物质层包括在活性物质层的厚度方向上交替层叠的第一层和第二层， 其中所述第一层包括硅或硅和少量的氧，并且所述第二层包括硅和比所述第一层更大量的氧。 通过使用负极，可以提供具有优异的高速率充放电特性和优异的循环特性的高容量锂离子二次电池。

公开(公告)号：US20060099507A1

公开(公告)日：2006-05-11

申请号：US11266299

申请日：2005-11-04

申请人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

发明人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

IPC分类号： H01M4/58 ,  B05D5/12

CPC分类号： H01M4/485 ,  H01M4/0419 ,  H01M4/0421 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M2004/021 ,  H01M2004/027

摘要： A negative electrode for a lithium ion secondary battery of the present invention includes a current collector and an active material layer carried on the current collector. The active material layer contains silicon and oxygen. In the thickness direction of the active material layer, an oxygen ratio of the active material is greater at the side of the active material layer in contact with the current collector than at the side of the active material layer not in contact with the current collector. The active material layer contains no binder. By using the negative electrode described above, it is possible to provide a high capacity lithium ion secondary battery having superior high rate charge/discharge characteristics and excellent cycle characteristics.

摘要翻译： 本发明的锂离子二次电池用负极包括在集电体上承载的集电体和活性物质层。 活性物质层含有硅和氧。 在活性物质层的厚度方向上，活性物质层的与集电体接触的一侧的活性物质的氧比在与集电体不接触的活性物质层侧相比更大。 活性物质层不含粘合剂。 通过使用上述负极，可以提供具有优异的高倍率充放电特性和优异的循环特性的高容量锂离子二次电池。

公开(公告)号：US07919205B2

公开(公告)日：2011-04-05

申请号：US11266299

申请日：2005-11-04

申请人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

发明人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato ,  Hiroshi Yoshizawa

IPC分类号： H01M4/00

CPC分类号： H01M4/485 ,  H01M4/0419 ,  H01M4/0421 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M2004/021 ,  H01M2004/027

摘要： A negative electrode for a lithium ion secondary battery of the present invention includes a current collector and an active material layer carried on the current collector. The active material layer contains silicon and oxygen. In the thickness direction of the active material layer, an oxygen ratio of the active material is greater at the side of the active material layer in contact with the current collector than at the side of the active material layer not in contact with the current collector. The active material layer contains no binder. By using the negative electrode described above, it is possible to provide a high capacity lithium ion secondary battery having superior high rate charge/discharge characteristics and excellent cycle characteristics.

摘要翻译： 本发明的锂离子二次电池用负极包括在集电体上承载的集电体和活性物质层。 活性物质层含有硅和氧。 在活性物质层的厚度方向上，活性物质层的与集电体接触的一侧的活性物质的氧比在与集电体不接触的活性物质层侧相比更大。 活性物质层不含粘合剂。 通过使用上述负极，可以提供具有优异的高倍率充放电特性和优异的循环特性的高容量锂离子二次电池。

公开(公告)号：US20090104536A1

公开(公告)日：2009-04-23

申请号：US11916493

申请日：2006-07-19

申请人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato

发明人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Toshitada Sato

IPC分类号： H01M4/02

CPC分类号： H01M4/0407 ,  H01M4/0428 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/485

摘要： A negative electrode for a lithium ion secondary battery including a current collector and an active material layer carried on the current collector, wherein the active material layer includes an active material represented by the general formula: LiaSiOx where 0.5≦a−x≦1.1 and 0.2≦x≦1.2; and the active material is obtained by vapor-depositing lithium on a layer including an active material precursor containing silicon and oxygen to cause reaction between the active material precursor and the lithium.

摘要翻译： 一种锂离子二次电池用负极，其包含集电体和负极集电体上的活性物质层，其中，所述活性物质层包含由通式Li x O x表示的活性物质，其中0.5 <= ax <= 1.1和0.2 <= x <= 1.2; 并且通过在包含含有硅和氧的活性物质前体的层上气相沉积锂以在活性材料前体和锂之间引起反应来获得活性材料。

公开(公告)号：US08080334B2

公开(公告)日：2011-12-20

申请号：US11363945

申请日：2006-03-01

申请人： Yasutaka Kogetsu ,  Masaya Ugaji ,  Keiichi Takahashi ,  Shinji Mino ,  Nobuaki Nagao ,  Satoshi Shibutani ,  Kazuyoshi Honda

发明人： Yasutaka Kogetsu ,  Masaya Ugaji ,  Keiichi Takahashi ,  Shinji Mino ,  Nobuaki Nagao ,  Satoshi Shibutani ,  Kazuyoshi Honda

IPC分类号： H01M10/40 ,  H01M4/20 ,  H01M4/48

CPC分类号： H01M4/134 ,  H01M4/0423 ,  H01M4/0426 ,  H01M4/1395 ,  H01M4/38 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49115

摘要： In order to enhance charge and discharge efficiency and to improve cycle characteristics by increasing a facing area between a positive electrode active material and a negative electrode active material, in a negative electrode for lithium secondary battery having a current collector and an active material layer carried on the current collector, the active material layer includes a plurality of columnar particles. The columnar particles include an element of silicon, and are tilted toward the normal direction of the current collector. Angle θ formed between the columnar particles and the normal direction of the current collector is preferably 10°≦θ

摘要翻译： 为了提高充放电效率，通过增加正极活性物质和负极活性物质之间的面积来提高循环特性，在具有集电体和活性物质层的锂二次电池用负极中， 集电体，活性物质层包括多个柱状颗粒。 柱状颗粒包括硅元素，并且朝向集电体的法线方向倾斜。 角度与角度 柱状颗粒与集电体的法线方向之间形成的膜优选为10°＆lt; 90°。

公开(公告)号：US20090280407A1

公开(公告)日：2009-11-12

申请号：US12306854

申请日：2007-12-26

申请人： Shuji Ito ,  Yasutaka Kogetsu ,  Kazuya Iwamoto ,  Kazuyoshi Honda ,  Taisuke Yamamoto ,  Yasuhiro Ueyama ,  Keisuke Ohara ,  Hitoshi Katayama

发明人： Shuji Ito ,  Yasutaka Kogetsu ,  Kazuya Iwamoto ,  Kazuyoshi Honda ,  Taisuke Yamamoto ,  Yasuhiro Ueyama ,  Keisuke Ohara ,  Hitoshi Katayama

IPC分类号： H01M4/02 ,  B05D5/12 ,  C25D5/00 ,  C25D5/10

CPC分类号： H01M4/70 ,  H01M4/04 ,  H01M4/66 ,  H01M4/662 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

摘要： The present invention relates to a current collector including a base portion with a flat face, primary projections projecting from the flat face, and secondary projections projecting from the top of the primary projections. The present invention also relates to a current collector including a base portion with a flat face and primary projections projecting from the flat face, wherein the roughening rate of the top of the primary projections is 3 to 20. By using such a current collector, separation of the active material from the current collector can be inhibited when using an active material that has a high capacity but undergoes a large expansion at the time of lithium ion absorption.

摘要翻译： 本发明涉及一种集电器，其包括具有平坦表面的基部，从平坦表面突出的第一突起和从第一突起的顶部突出的第二突起。 本发明还涉及一种集电体，其包括具有平坦面的基部和从平坦面突出的一次突起，其中，第一突起的顶部的粗糙化率为3〜20。通过使用这样的集电体， 当使用具有高容量但在锂离子吸收时发生大的膨胀的活性材料时，能够抑制来自集电体的活性物质。

公开(公告)号：US08076027B2

公开(公告)日：2011-12-13

申请号：US11814694

申请日：2006-01-23

申请人： Kazuyoshi Honda ,  Yuuko Ogawa ,  Yasutaka Kogetsu

发明人： Kazuyoshi Honda ,  Yuuko Ogawa ,  Yasutaka Kogetsu

IPC分类号： H01M4/58

CPC分类号： H01M10/0525 ,  H01M2/16 ,  H01M4/1315 ,  H01M4/134 ,  H01M4/386 ,  H01M4/387 ,  H01M4/66 ,  Y10T29/49115

摘要： A negative electrode for a secondary battery includes a separator; a negative electrode active material layer which is fixed to the separator and can store and emit lithium ions; and a current collector layer formed on the side of the separator opposite to the negative electrode active material layer. The negative electrode active material layer contains at least one selected from the group consisting of silicon, silicon alloys, compounds containing silicon and oxygen, compounds containing silicon and nitrogen, compounds containing silicon and fluorine, tin, tin alloys, compounds containing tin and oxygen, compounds containing tin and nitrogen, and compounds containing tin and fluorine.

摘要翻译： 二次电池用负极包括隔板; 负极活性物质层，其固定在隔板上并能够存储和放出锂离子; 以及形成在隔板的与负极活性物质层相反的一侧的集电体层。 负极活性物质层含有选自硅，硅合金，含硅和氧的化合物，含硅和氮的化合物，含硅和氟的化合物，锡，锡合金，含锡和氧的化合物中的至少一种， 含锡和氮的化合物，以及含锡和氟的化合物。

公开(公告)号：US20080102359A1

公开(公告)日：2008-05-01

申请号：US11877425

申请日：2007-10-23

申请人： Yasutaka KOGETSU ,  Kazuyoshi Honda

发明人： Yasutaka KOGETSU ,  Kazuyoshi Honda

IPC分类号： H01M2/14

CPC分类号： H01M4/70 ,  H01M2/1022 ,  H01M4/13 ,  H01M4/134 ,  H01M4/366 ,  H01M4/661 ,  H01M10/052

摘要： An electrode plate for a battery includes a current collector having a substrate and a plurality of protrusions that are carried on the substrate; and an active material layer that is carried on the current collector. The protrusions include a conductive material that undergoes plastic deformation more easily than the substrate. A lithium secondary battery includes the above electrode plate.

摘要翻译： 一种电池用电极板，具有：集电体，具有基板和承载在所述基板上的多个突起; 以及承载在集电体上的活性物质层。 突起包括比基板更容易发生塑性变形的导电材料。 锂二次电池包括上述电极板。

公开(公告)号：US20060292445A1

公开(公告)日：2006-12-28

申请号：US11473149

申请日：2006-06-23

申请人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Yuuko Ogawa

发明人： Yasutaka Kogetsu ,  Kazuyoshi Honda ,  Yuuko Ogawa

IPC分类号： H01M4/58 ,  C01B21/068 ,  C01B21/06

CPC分类号： H01M4/58 ,  H01M4/0421 ,  H01M4/0426 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/0525 ,  H01M2004/027

摘要： A negative electrode for a lithium ion secondary battery including a current collector and an active material layer carried on the current collector, wherein the active material layer includes an active material and no binder, the active material contains silicon and nitrogen, and the active material layer has a larger nitrogen ratio on a side of a first face which is in contact with the current collector than on a side of a second face which is not in contact with the current collector.

摘要翻译： 一种锂离子二次电池用负极，其包含集电体和活性物质层，所述负极包含活性物质层，活性物质层为活性物质，不含有粘合剂，活性物质含有硅和氮，活性物质层 在与集电体接触的第一面的一侧比在与集电体不接触的第二面的一侧具有较大的氮比。