公开(公告)号：US08399129B2

公开(公告)日：2013-03-19

申请号：US12297836

申请日：2007-10-02

申请人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara ,  Yasutaka Kogetsu ,  Takuhiro Nishimura

发明人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara ,  Yasutaka Kogetsu ,  Takuhiro Nishimura

IPC分类号： H01M4/02 ,  H01M4/36

CPC分类号： H01M10/052 ,  H01M4/134 ,  H01M4/661 ,  H01M4/70

摘要： A negative electrode for a lithium secondary battery of the present invention includes a current collector and a negative electrode active material layer carried on the current collector. The negative electrode active material layer includes a plurality of columnar particles. The current collector has a surface including a depression and a plurality of projected regions defined by the depression. The projected regions carry the columnar particles. Further, the present invention relates to a lithium secondary battery using the foregoing negative electrode. According to the present invention, it is possible to provide a high-capacity negative electrode excellent mainly in cycle characteristics for a lithium secondary battery, and a lithium secondary battery including the same.

摘要翻译： 本发明的锂二次电池用负极包括在集电体上承载的集电体和负极活性物质层。 负极活性物质层包含多个柱状粒子。 集电器具有包括凹陷的表面和由凹陷限定的多个投影区域。 投影区域带有柱状颗粒。 此外，本发明涉及使用上述负极的锂二次电池。 根据本发明，可以提供主要在锂二次电池的循环特性和包括该锂二次电池的锂二次电池中优异的高容量负极。

公开(公告)号：US20090176158A1

公开(公告)日：2009-07-09

申请号：US12297836

申请日：2007-10-02

申请人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara ,  Yasutaka Kogetsu ,  Takuhiro Nishimura

发明人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara ,  Yasutaka Kogetsu ,  Takuhiro Nishimura

IPC分类号： H01M4/58

CPC分类号： H01M10/052 ,  H01M4/134 ,  H01M4/661 ,  H01M4/70

摘要： A negative electrode for a lithium secondary battery of the present invention includes a current collector and a negative electrode active material layer carried on the current collector. The negative electrode active material layer includes a plurality of columnar particles. The current collector has a surface including a depression and a plurality of projected regions defined by the depression. The projected regions carry the columnar particles. Further, the present invention relates to a lithium secondary battery using the foregoing negative electrode. According to the present invention, it is possible to provide a high-capacity negative electrode excellent mainly in cycle characteristics for a lithium secondary battery, and a lithium secondary battery including the same.

摘要翻译： 本发明的锂二次电池用负极包括在集电体上承载的集电体和负极活性物质层。 负极活性物质层包含多个柱状粒子。 集电器具有包括凹陷的表面和由凹陷限定的多个投影区域。 投影区域带有柱状颗粒。 此外，本发明涉及使用上述负极的锂二次电池。 根据本发明，可以提供主要在锂二次电池的循环特性和包括该锂二次电池的锂二次电池中优异的高容量负极。

公开(公告)号：US20100151330A1

公开(公告)日：2010-06-17

申请号：US12093707

申请日：2007-11-07

申请人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara

发明人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara

IPC分类号： H01M4/58 ,  H01M4/08

CPC分类号： H01M4/70 ,  H01M4/13 ,  H01M4/136 ,  H01M4/362 ,  H01M4/483 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0566 ,  H01M10/058 ,  H01M2004/027 ,  Y10T29/49108

摘要： A negative electrode for a non-aqueous electrolyte secondary battery, which reversibly inserts/extracts lithium ions includes a current collector (11) in which a concave portion (12) and a convex portion (13) are formed at least one surface thereof; and a columnar body (15) which is formed by laminating n (n≧2) stages of columnar body portions which are obliquely erected on the convex portion (13) of the current collector (11) and in which a content ratio of elements sequentially vary in a longitudinal direction of the current collector (11), and has a configuration in which variation directions of content ratios of elements of odd-numbered stages of columnar body portions and even-numbered stages of columnar body portions are different from each other. At least three surfaces (13a, 13b, 13c) of the convex portion (13) in a section of the longitudinal direction are covered by the columnar body portions.

摘要翻译： 用于可逆地插入/提取锂离子的非水电解质二次电池用负极包括在其至少一个表面上形成有凹部（12）和凸部（13）的集电体（11） 以及柱状体（15），其通过层叠n（n≥2）级的柱状体部分而形成，所述柱状体部分倾斜地竖立在集电体（11）的凸部（13）上，并且其中元素的含量比依次 在集电体（11）的长度方向上变化，并且具有柱状体部的奇数级和偶数级的柱状体部的元件的含量比的变化方向彼此不同的结构。 在纵向方向的一部分中的凸部（13）的至少三个表面（13a，13b，13c）被柱状体部分覆盖。

公开(公告)号：US08029933B2

公开(公告)日：2011-10-04

申请号：US12064177

申请日：2007-09-21

申请人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara

发明人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara

IPC分类号： H01M4/76 ,  H01M4/64 ,  H01M4/72 ,  H01M4/13 ,  H01M4/58 ,  H01M4/82 ,  H01M6/00

CPC分类号： H01M4/1391 ,  H01M4/0423 ,  H01M4/131 ,  H01M4/70 ,  Y10T29/49108 ,  Y10T29/49115

摘要： A negative electrode for a non-aqueous electrolyte secondary battery reversibly inserting and extracting lithium ions, and including current collector having concave portion and convex portion on at least one surface thereof; and columnar body formed on convex portion of current collector and including columnar body portions laminated in n stages (n≧2) in which a content ratio of an element sequentially changes in the longitudinal direction of the current collector. The content ratio of an element is different between in an odd stage and in an even stage of columnar body portions.

摘要翻译： 一种用于非水电解质二次电池的负极，其可逆地插入和提取锂离子，并且在其至少一个表面上包括具有凹部和凸部的集电体; 柱状体形成在集电体的凸部上，并且包括层叠在n个阶段（n≥2）的柱状体部，其中元件的含量比在集电体的纵向方向依次变化。 元件的含量比在柱状体部分的奇数阶段和偶数阶段中是不同的。

公开(公告)号：US07947396B2

公开(公告)日：2011-05-24

申请号：US12093707

申请日：2007-11-07

申请人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara

发明人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara

IPC分类号： H01M4/58

CPC分类号： H01M4/70 ,  H01M4/13 ,  H01M4/136 ,  H01M4/362 ,  H01M4/483 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0566 ,  H01M10/058 ,  H01M2004/027 ,  Y10T29/49108

摘要： A negative electrode for a non-aqueous electrolyte secondary battery, which reversibly inserts/extracts lithium ions includes a current collector (11) in which a concave portion (12) and a convex portion (13) are formed at least one surface thereof; and a columnar body (15) which is formed by laminating n (n≧2) stages of columnar body portions which are obliquely erected on the convex portion (13) of the current collector (11) and in which a content ratio of elements sequentially vary in a longitudinal direction of the current collector (11), and has a configuration in which variation directions of content ratios of elements of odd-numbered stages of columnar body portions and even-numbered stages of columnar body portions are different from each other. At least three surfaces (13a, 13b, 13c) of the convex portion (13) in a section of the longitudinal direction are covered by the columnar body portions.

摘要翻译： 用于可逆地插入/提取锂离子的非水电解质二次电池用负极包括在其至少一个表面上形成有凹部（12）和凸部（13）的集电体（11） 以及柱状体（15），其通过层叠n（n≥2）级的柱状体部分而形成，所述柱状体部分倾斜地竖立在集电体（11）的凸部（13）上，并且其中元素的含量比依次 在集电体（11）的长度方向上变化，并且具有柱状体部的奇数级和偶数级的柱状体部的元件的含量比的变化方向彼此不同的结构。 在纵向方向的一部分中的凸部（13）的至少三个表面（13a，13b，13c）被柱状体部分覆盖。

公开(公告)号：US20100151320A1

公开(公告)日：2010-06-17

申请号：US12064177

申请日：2007-09-21

申请人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara

发明人： Masaya Ugaji ,  Masaki Hasegawa ,  Taisuke Yamamoto ,  Keisuke Ohara

IPC分类号： H01M10/052 ,  H01M4/13 ,  H01M4/134

CPC分类号： H01M4/1391 ,  H01M4/0423 ,  H01M4/131 ,  H01M4/70 ,  Y10T29/49108 ,  Y10T29/49115

摘要： A negative electrode for nonaqueous electrolyte secondary battery capable of reversible occlusion and release of lithium ions, comprising current collector (11) provided on at least one major surface thereof with depressed portion (12) and protrudent portion (13) and, superimposed on the protrudent portion (13) of the current collector (11), columnar body (15) composed of a laminate of n (n≧2) layers of columnar body portions (16a,16b,16c) containing elements whose content ratio sequentially changes in the longitudinal direction of the current collector (11), wherein odd-numbered layers and even-numbered layers of the columnar body portions (16a,16b,16c) are different from each other in the direction of change of element content ratio.

摘要翻译： 一种能够可逆闭塞和释放锂离子的非水电解质二次电池用负极，其特征在于，具有设置在其至少一个主面上的集电体（11），其具有凹部（12）和突出部（13），并叠合在突出部 集电体（11）的部分（13），由n（n≥2）层的柱状体部分（16a，16b，16c）的层叠体构成的柱状体（15），其包含元素的含量比率在纵向上依次变化 集电体（11）的方向，其中柱状体部（16a，16b，16c）的奇数层和偶数层在元素含量比的变化方向上彼此不同。

公开(公告)号：US08318359B2

公开(公告)日：2012-11-27

申请号：US11886848

申请日：2006-11-07

申请人： Keiichi Takahashi ,  Masaya Ugaji ,  Yasutaka Kogetsu ,  Shinji Mino ,  Nobuaki Nagao ,  Masaki Hasegawa

发明人： Keiichi Takahashi ,  Masaya Ugaji ,  Yasutaka Kogetsu ,  Shinji Mino ,  Nobuaki Nagao ,  Masaki Hasegawa

IPC分类号： H01M4/76 ,  H01M4/13 ,  H01M4/58 ,  H01M4/80 ,  H01M4/66 ,  H01M4/68

CPC分类号： H01M4/13 ,  H01M4/131 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02T10/7011 ,  Y10T29/49108 ,  Y10T29/49115

摘要： An electrode for a lithium secondary battery including a sheet-like current collector and an active material layer carried on the current collector. The active material layer is capable of absorbing and desorbing lithium, and the active material layer includes a plurality of columnar particles having at least one bend. An angle θ1 formed by a growth direction of the columnar particles from a bottom to a first bend of the columnar particles, and a direction normal to the current collector is preferably 10° or more and less than 90°. When θn+1 is an angle formed by a growth direction of the columnar particles from an n-th bend counted from a bottom of the columnar particles to an (n+1)-th bend, and the direction normal to the current collector, and n is an integer of 1 or more, θn+1 is preferably 0° or more and less than 90°.

公开(公告)号：US08303672B2

公开(公告)日：2012-11-06

申请号：US13248858

申请日：2011-09-29

申请人： Keiichi Takahashi ,  Masaya Ugaji ,  Yasutaka Kogetsu ,  Shinji Mino ,  Nobuaki Nagao ,  Masaki Hasegawa

发明人： Keiichi Takahashi ,  Masaya Ugaji ,  Yasutaka Kogetsu ,  Shinji Mino ,  Nobuaki Nagao ,  Masaki Hasegawa

IPC分类号： H01M4/82 ,  H01M6/00 ,  H01M4/76 ,  B05D5/12 ,  C23C4/04

CPC分类号： H01M4/13 ,  H01M4/131 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02T10/7011 ,  Y10T29/49108 ,  Y10T29/49115

摘要： An electrode for a lithium secondary battery including a sheet-like current collector and an active material layer carried on the current collector. The active material layer is capable of absorbing and desorbing lithium, and the active material layer includes a plurality of columnar particles having at least one bend. An angle θ1 formed by a growth direction of the columnar particles from a bottom to a first bend of the columnar particles, and a direction normal to the current collector is preferably 10° or more and less than 90°. When θn+1 is an angle formed by a growth direction of the columnar particles from an n-th bend counted from a bottom of the columnar particles to an (n+1)-th bend, and the direction normal to the current collector, and n is an integer of 1 or more, θn+1 is preferably 0° or more and less than 90°.

摘要翻译： 一种锂二次电池用电极，其包含片状集电体和在集电体上承载的活性物质层。 活性物质层能够吸收和解吸锂，并且活性物质层包括具有至少一个弯曲部分的多个柱状颗粒。 由柱状颗粒从柱状颗粒的底部到第一弯曲部的生长方向形成的角度θ和垂直于集电体的方向优选为10°以上且小于90°。 当n + 1是由从柱状颗粒的底部计数到第（n + 1）弯曲的第n个弯曲的柱状颗粒的生长方向和垂直于电流的方向形成的角度 并且n为1以上的整数，n + 1优选为0°以上且小于90°。

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

IPC分类号： H01M4/02 ,  H01M4/04 ,  B05D5/12

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：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。