-
公开(公告)号：US08888870B2
公开(公告)日：2014-11-18
申请号：US13252808
申请日：2011-10-04
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： H01M4/134 , H01M4/04 , H01M4/1395 , H01M4/38 , H01M4/02
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°。
-
12.发明授权公开(公告)号：US07767341B2
公开(公告)日：2010-08-03
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。
-
公开(公告)号：US20070031733A1
公开(公告)日：2007-02-08
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
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。 在柱状颗粒与集电体的法线方向之间形成的角度θ优选为10°<θ<90°。
-
14.发明授权公开(公告)号：US07851089B2
公开(公告)日：2010-12-14
申请号：US11877425
申请日：2007-10-23
申请人： Yasutaka Kogetsu , Kazuyoshi Honda
发明人： Yasutaka Kogetsu , Kazuyoshi Honda
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。
-
15.发明申请公开(公告)号：US20100129711A1
公开(公告)日：2010-05-27
申请号：US12303854
申请日：2007-08-22
申请人： Katsumi Kashiwagi , Kazuyoshi Honda , Masaki Hasegawa , Masaya Ugaji , Yasutaka Kogetsu , Shuji Ito
发明人： Katsumi Kashiwagi , Kazuyoshi Honda , Masaki Hasegawa , Masaya Ugaji , Yasutaka Kogetsu , Shuji Ito
CPC分类号： H01M4/13 , H01M4/386 , H01M4/40 , H01M4/70 , H01M10/0525 , H01M2004/025 , H01M2004/027
摘要： This invention provides a negative electrode and a non-aqueous electrolyte secondary battery including the negative electrode. The negative electrode includes a Li-absorbing element as a negative electrode active material, is free from deformation, separation of the negative electrode active material layer from the negative electrode current collector, and deposition of lithium on the negative electrode current collector, and is excellent in cycle characteristic, large-current discharge characteristic, and low-temperature discharge characteristic.The negative electrode of this invention includes: a current collector having depressions and protrusions on a surface in the thickness direction thereof; and a negative electrode active material layer that includes a plurality of columns containing a negative electrode active material that absorbs and releases lithium ions, the columns being grown outwardly from the surface of the current collector. The negative electrode of this invention is characterized in that the columns are grown at an inclination angle relative to the direction perpendicular to the surface of the current collector, and that the inclination angle of the columns changes reversibly depending on absorption and release of lithium ions by the negative electrode active material.
摘要翻译： 本发明提供一种负极和含有负极的非水电解质二次电池。 负极包括作为负极活性物质的Li吸收元件，没有变形，负极活性物质层与负极集电体分离，并且在负极集电体上沉积锂，并且优异 循环特性，大电流放电特性和低温放电特性。 本发明的负极包括：在其厚度方向的表面上具有凹陷和突起的集电器; 以及包含吸收和释放锂离子的负极活性物质的多个列的负极活性物质层，所述列从集电体的表面向外生长。 本发明的负极的特征在于，柱相对于与集电体的表面垂直的方向以倾斜角度生长，并且柱的倾斜角随着锂离子的吸收和释放而可逆地变化 负极活性物质。
-
公开(公告)号：US08986882B2
公开(公告)日：2015-03-24
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 , H01M4/70 , H01M4/66 , H01M10/0525 , H01M4/04
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。
-
17.发明授权公开(公告)号：US08389156B2
公开(公告)日：2013-03-05
申请号：US12303854
申请日：2007-08-22
申请人： Katsumi Kashiwagi , Kazuyoshi Honda , Masaki Hasegawa , Masaya Ugaji , Yasutaka Kogetsu , Shuji Ito
发明人： Katsumi Kashiwagi , Kazuyoshi Honda , Masaki Hasegawa , Masaya Ugaji , Yasutaka Kogetsu , Shuji Ito
IPC分类号： H01M4/02
CPC分类号： H01M4/13 , H01M4/386 , H01M4/40 , H01M4/70 , H01M10/0525 , H01M2004/025 , H01M2004/027
摘要： This invention provides a negative electrode and a non-aqueous electrolyte secondary battery including the negative electrode. The negative electrode includes a Li-absorbing element as a negative electrode active material, is free from deformation, separation of the negative electrode active material layer from the negative electrode current collector, and deposition of lithium on the negative electrode current collector, and is excellent in cycle characteristic, large-current discharge characteristic, and low-temperature discharge characteristic.The negative electrode of this invention includes: a current collector having depressions and protrusions on a surface in the thickness direction thereof; and a negative electrode active material layer that includes a plurality of columns containing a negative electrode active material that absorbs and releases lithium ions, the columns being grown outwardly from the surface of the current collector. The negative electrode of this invention is characterized in that the columns are grown at an inclination angle relative to the direction perpendicular to the surface of the current collector, and that the inclination angle of the columns changes reversibly depending on absorption and release of lithium ions by the negative electrode active material.
摘要翻译： 本发明提供一种负极和含有负极的非水电解质二次电池。 负极包括作为负极活性物质的Li吸收元件，没有变形，负极活性物质层与负极集电体分离，并且在负极集电体上沉积锂，并且优异 循环特性，大电流放电特性和低温放电特性。 本发明的负极包括：在其厚度方向的表面上具有凹陷和突起的集电器; 以及包含吸收和释放锂离子的负极活性物质的多个列的负极活性物质层，所述列从集电体的表面向外生长。 本发明的负极的特征在于，柱相对于与集电体的表面垂直的方向以倾斜角度生长，并且柱的倾斜角随着锂离子的吸收和释放而可逆地变化 负极活性物质。
-
18.发明申请公开(公告)号：US20090017380A1
公开(公告)日：2009-01-15
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
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：US08486549B2
公开(公告)日：2013-07-16
申请号：US12600391
申请日：2008-07-18
CPC分类号： H01M10/0525 , H01M4/0421 , H01M4/131 , H01M4/134 , H01M4/1391 , H01M4/1395 , H01M4/386 , H01M4/387 , H01M4/485 , H01M10/446
摘要： A lithium ion secondary battery including: a positive electrode current collector; a positive electrode active material layer that is provided in contact with the positive electrode current collector; a separator layer that is provided on a side of the positive electrode active material layer on which the positive electrode current collector is not provided; a negative electrode active material layer that is provided on a side of the separator layer on which the positive electrode active material layer is not provided, that primarily contains silicon or tin, and that includes a opposing portion opposing the positive electrode active material layer and a non-opposing portion not opposing the positive electrode active material layer, the opposing portion and the non-opposing portion containing lithium produced by a thin film-forming method; and a negative electrode current collector that is provided on a side of the negative electrode active material layer on which the separator layer is not provided. Thereby, deformation of the negative electrode and deterioration in cycle characteristics accompanied by such deformation can be prevented.
摘要翻译： 1.一种锂离子二次电池，包括：正极集电体; 设置为与正极集电体接触的正极活性物质层; 设置在不设置正极集电体的正极活性物质层的一侧的隔离层; 设置在不设置正极活性物质层的隔板层的一侧的负极活性物质层，其主要含有硅或锡，并且包括与正极活性物质层相对的相对部分和 不与正极活性物质层相对的非相对部分，相对部分和非相对部分含有通过薄膜形成方法生产的锂; 以及负极集电体，其设置在不设置隔板层的负极活性物质层的一侧。 由此，可以防止负极的变形和伴随这种变形的循环特性的劣化。
-
公开(公告)号：US20100112451A1
公开(公告)日：2010-05-06
申请号：US12444634
申请日：2007-10-09
IPC分类号： H01M4/58
CPC分类号： H01M4/02 , H01M4/134 , H01M10/052 , H01M2004/021 , H01M2004/027
摘要： A negative electrode 100 for a nonaqueous electrolytic secondary cell includes a current collector 1 and a plurality of active material bodies 2 formed on a surface of the current collector 1 at intervals; each active material body 2 contains a material for occluding or releasing lithium; and a plurality of projections 3 are formed on a part of a side surface of each active material body 2.
摘要翻译： 非水电解质二次电池用负极100包括：集电体1和间隔地形成在集电体1的表面上的多个活性物质体2; 每个活性材料体2含有用于吸留或释放锂的材料; 在活性物质2的侧面的一部分上形成有多个突起3。
-
-
-
-
-
-
-
-
-
搜索结果
142 条记录 (耗时 0.036 秒)
