公开(公告)号：US09543567B2

公开(公告)日：2017-01-10

申请号：US13613889

申请日：2012-09-13

申请人： Naoto Ohira ,  Ryuta Sugiura ,  Shohei Yokoyama ,  Miho Endo ,  Koji Kimura ,  Tsutomu Nanataki

发明人： Naoto Ohira ,  Ryuta Sugiura ,  Shohei Yokoyama ,  Miho Endo ,  Koji Kimura ,  Tsutomu Nanataki

IPC分类号： B05D5/12 ,  H01M4/04 ,  H01M4/1391 ,  H01M10/052

CPC分类号： H01M4/0471 ,  H01M4/1391 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54

摘要： The present invention relates to a method for manufacturing cathode active material for a lithium secondary battery. The manufacturing method according to the present invention is characterized by including: (1) an intermediate generation process, wherein an intermediate which is powder or a shaped object containing the first material compound which is a compound of the transition metal other than lithium, which constitutes said lithium composite oxide, is generated, (2) a lithium source compound addition process, wherein the second material compound which is a lithium compound is added so that the second material compound in the shape of film may adhere to the surface of said intermediate, and (3) a sintering process, wherein lithium composite oxide is generated by sintering said intermediate in the state where said second material compound has adhered to its surface.

摘要翻译： 本发明涉及锂二次电池用正极活性物质的制造方法。 根据本发明的制造方法的特征在于包括：（1）中间生成工序，其中，作为粉末或成形体的中间体，其含有除锂以外的过渡金属的化合物的第一原料化合物，其构成 所述锂复合氧化物，（2）锂源化合物添加工序，其中添加作为锂化合物的第二材料化合物，使得膜形状的第二材料化合物可能粘附到所述中间体的表面， 和（3）烧结工艺，其中通过在所述第二材料化合物粘附到其表面的状态下烧结所述中间体而产生锂复合氧化物。

公开(公告)号：US09379375B2

公开(公告)日：2016-06-28

申请号：US13166087

申请日：2011-06-22

申请人： Ryuta Sugiura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki ,  Masaya Ugaji ,  Kaoru Nagata

发明人： Ryuta Sugiura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki ,  Masaya Ugaji ,  Kaoru Nagata

IPC分类号： H01M4/485 ,  H01M4/583 ,  H01M4/64 ,  H01M4/04 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

CPC分类号： H01M4/0471 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/122

摘要： To provide a lithium secondary battery which has high capacity while maintaining excellent cycle characteristic. The lithium secondary battery cathode of the present invention includes a cathode collector formed of a conductive substance, and a cathode active material layer formed of a sintered lithium composite oxide sheet. The cathode active material layer is bonded to the cathode collector by the mediation of a conductive bonding layer. A characteristic feature of the present invention resides in that the cathode active material layer has a thickness of 30 μm or more, a voidage of 3 to 30%, and an open pore ratio of 70% or higher.

摘要翻译： 提供具有高容量的锂二次电池，同时保持优异的循环特性。 本发明的锂二次电池阴极包​​括由导电物质形成的阴极集电体和由烧结的锂复合氧化物片形成的正极活性物质层。 阴极活性物质层通过导电接合层的介导与阴极集电体接合。 本发明的特征在于，阴极活性物质层的厚度为30μm以上，空隙率为3〜30％，开孔率为70％以上。

公开(公告)号：US09257702B2

公开(公告)日：2016-02-09

申请号：US13165365

申请日：2011-06-21

申请人： Ryuta Sugiura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

发明人： Ryuta Sugiura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

IPC分类号： H01M4/131 ,  H01M4/525 ,  H01M10/052 ,  H01M4/505 ,  C01G51/00 ,  C01G53/00 ,  C01G53/04

CPC分类号： H01M4/505 ,  C01G51/42 ,  C01G53/006 ,  C01G53/04 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/74 ,  C01P2004/22 ,  C01P2004/62 ,  C01P2006/16 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/525 ,  H01M10/052 ,  Y02E60/122 ,  Y10T428/2982

摘要： To provide a lithium secondary battery which has high capacity while maintaining excellent charge-discharge characteristic, and to provide a cathode of the lithium secondary battery and a plate-like particle for cathode active material to be contained in the cathode. The plate-like particle of cathode active material for a lithium secondary battery of the present invention has a layered rock salt structure, a thickness of 5 μm or more and less than 30 μm, 2 or less of [003]/[104] which is a ratio of intensity of X-ray diffraction by the (003) plane to intensity of X-ray diffraction by the (104) plane, a voidage of 3% or more and less than 30%, and an open pore ratio of 70% or higher.

摘要翻译： 提供具有高容量的锂二次电池，同时保持优异的充放电特性，并提供锂二次电池的阴极和用于正极活性物质的板状颗粒。 本发明的锂二次电池用正极活性物质的板状颗粒具有层状岩盐结构，厚度为5μm以上且小于30μm，2以下的[003] / [104] 是（003）面的X射线衍射强度与（104）面的X射线衍射强度的比值，3％以上且小于30％的空隙率和70％的开孔率 ％ 或更高。

公开(公告)号：US09115005B2

公开(公告)日：2015-08-25

申请号：US13613794

申请日：2012-09-13

申请人： Shigeki Okada ,  Ryuta Sugiura ,  Akira Urakawa ,  Kazuki Maeda ,  Tsutomu Nanataki

发明人： Shigeki Okada ,  Ryuta Sugiura ,  Akira Urakawa ,  Kazuki Maeda ,  Tsutomu Nanataki

IPC分类号： H01M4/88 ,  C01G53/00 ,  H01M4/485 ,  H01M4/525 ,  H01M4/02

CPC分类号： C01G53/006 ,  C01G53/42 ,  C01P2002/54 ,  C01P2004/52 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/525 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54

摘要： A cathode active material precursor particle, a method for producing thereof and a method for producing cathode active material for a lithium secondary battery. The cathode active material precursor particle is capable of forming a cathode active material for a lithium secondary battery including a lithium composite oxide having a layered rock salt structure through lithium incorporation. The particles are characterized by the cathode active material precursor particle being formed into a substantially spherical shape and includes therein a large number of voids in a substantially uniform manner; and the cathode active material precursor particle has: an average particle diameter D50 of 0.5 to 5 μm; a specific surface area of 3 to 25 m2/g; and a relative tap density, which is a value obtained by dividing a tap density by a theoretical density of a material constituting the cathode active material precursor particle, of 0.25 to 0.4.

摘要翻译： 正极活性物质前体粒子，其制造方法以及锂二次电池用正极活性物质的制造方法。 正极活性物质前体粒子能够通过锂掺入形成具有层状岩盐结构的锂复合氧化物的锂二次电池用正极活性物质。 颗粒的特征在于正极活性物质前体颗粒被形成为大致球形，并且在其中包括大量空隙，基本上均匀的方式; 正极活性物质前体粒子的平均粒径D50为0.5〜5μm; 比表面积为3〜25m2 / g; 以及作为通过将振实密度除以构成正极活性物质前体粒子的材料的理论密度而得到的值为0.25〜0.4的相对振实密度。

公开(公告)号：US20130071748A1

公开(公告)日：2013-03-21

申请号：US13613794

申请日：2012-09-13

申请人： Shigeki Okada ,  Ryuta Sugiura ,  Akira Urakawa ,  Kazuki Maeda ,  Tsutomu Nanataki

发明人： Shigeki Okada ,  Ryuta Sugiura ,  Akira Urakawa ,  Kazuki Maeda ,  Tsutomu Nanataki

IPC分类号： H01M4/525 ,  B02C11/08 ,  H01M4/485

CPC分类号： C01G53/006 ,  C01G53/42 ,  C01P2002/54 ,  C01P2004/52 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/525 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54

摘要： A cathode active material precursor particle, a method for producing thereof and a method for producing cathode active material for a lithium secondary battery. The cathode active material precursor particle is capable of forming a cathode active material for a lithium secondary battery including a lithium composite oxide having a layered rock salt structure through lithium incorporation. The particles are characterized by the cathode active material precursor particle being formed into a substantially spherical shape and includes therein a large number of voids in a substantially uniform manner; and the cathode active material precursor particle has: an average particle diameter D50 of 0.5 to 5 μm; a specific surface area of 3 to 25 m2/g; and a relative tap density, which is a value obtained by dividing a tap density by a theoretical density of a material constituting the cathode active material precursor particle, of 0.25 to 0.4.

摘要翻译： 正极活性物质前体粒子，其制造方法以及锂二次电池用正极活性物质的制造方法。 正极活性物质前体粒子能够通过锂掺入形成具有层状岩盐结构的锂复合氧化物的锂二次电池用正极活性物质。 颗粒的特征在于正极活性物质前体颗粒被形成为大致球形，并且在其中包括大量空隙，基本上均匀的方式; 正极活性物质前体粒子的平均粒径D50为0.5〜5μm; 比表面积为3〜25m2 / g; 以及作为通过将振实密度除以构成正极活性物质前体粒子的材料的理论密度而得到的值为0.25〜0.4的相对振实密度。

公开(公告)号：US20100159332A1

公开(公告)日：2010-06-24

申请号：US12644337

申请日：2009-12-22

申请人： Ryuta SUGIURA ,  Nobuyuki Kobayashi ,  Shohei Yokoyama

发明人： Ryuta SUGIURA ,  Nobuyuki Kobayashi ,  Shohei Yokoyama

IPC分类号： H01M4/583 ,  H01M4/88 ,  H01M4/58

CPC分类号： C01G45/1228 ,  C01G51/42 ,  C01G51/50 ,  C01G53/50 ,  C01P2002/74 ,  C01P2004/03 ,  C01P2004/20 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/122

摘要： An object of the present invention is to provide a lithium secondary battery which has improved capacity, durability, and rate characteristic as compared with conventional lithium secondary batteries. A plate-like particle or a film for a lithium secondary battery cathode active material has a layered rock salt structure. The (003) plane is oriented in a direction intersecting the direction of the plate surface of the particle or film.

摘要翻译： 本发明的目的是提供一种与常规锂二次电池相比具有改进的容量，耐久性和速率特性的锂二次电池。 锂二次电池正极活性物质的板状粒子或膜具有层状岩盐结构。 （003）面在与颗粒或膜的板表面的方向相交的方向上取向。

公开(公告)号：US08795898B2

公开(公告)日：2014-08-05

申请号：US12644394

申请日：2009-12-22

申请人： Ryuta Sugiura ,  Nobuyuki Kobayashi ,  Shohei Yokoyama ,  Tsutomu Nanataki

发明人： Ryuta Sugiura ,  Nobuyuki Kobayashi ,  Shohei Yokoyama ,  Tsutomu Nanataki

IPC分类号： H01M4/13 ,  H01M4/58 ,  H01M4/02

CPC分类号： H01M10/0525 ,  H01M4/131 ,  H01M4/485 ,  H01M2004/021

摘要： An object of the present invention is to provide a lithium secondary battery which has improved capacity, durability, and the other characteristic as compared with conventional lithium secondary batteries. A plate-like particle or a film for a lithium secondary battery cathode active material has a layered rock salt structure. The lithium ion gateway plane is oriented in parallel with a plate surface, which is a surface orthogonal to a thickness direction of the particle and thus exposed at the plate surface, a plurality of layers are stacked together in the thickness direction, and while the layers have the same crystal axis in the thickness direction, as for the plate surface direction perpendicular to the thickness direction, the layers have different crystal axes.

摘要翻译： 本发明的目的是提供一种与常规锂二次电池相比具有改善的容量，耐久性和其它特性的锂二次电池。 锂二次电池正极活性物质的板状粒子或膜具有层状岩盐结构。 锂离子网关平面与平板表面平行，板表面是与颗粒的厚度方向正交的表面，因此在板表面露出，多个层在厚度方向上堆叠在一起，而层 在厚度方向上具有相同的晶轴，对于与厚度方向垂直的板表面方向，这些层具有不同的晶轴。

公开(公告)号：US20120258358A1

公开(公告)日：2012-10-11

申请号：US13334617

申请日：2011-12-22

申请人： Yukinobu YURA ,  Chiori Ito ,  Ryuta Sugiura ,  Nobuyuki Kobayashi

发明人： Yukinobu YURA ,  Chiori Ito ,  Ryuta Sugiura ,  Nobuyuki Kobayashi

IPC分类号： H01M4/02 ,  H01M10/052

CPC分类号： H01M4/02 ,  H01M4/131 ,  H01M10/052 ,  H01M2004/021

摘要： [Summary] Provided is a cathode active material for a lithium secondary battery having a layered rock salt structure, including a secondary grain formed of a large number of primary grains each having an average grain size of 0.01 μm or more and 5 μm or less, in which the secondary grain has the following characteristics: a (003) plane orientation degree of 60% or more; an average grain size of 1 μm or more and 100 μm or less; an aspect ratio of 1.0 or more and less than 2; a voidage of 3% or more and 30% or less; an average pore size of 0.1 μm or more and 5 μm or less; and a value obtained by dividing the average grain size of each of the primary grains by the average pore size of 0.1 or more and 5 or less.

摘要翻译： 发明内容提供一种具有层状岩盐结构的锂二次电池用正极活性物质，其包含由平均粒径为0.01μm以上且5μm以下的多个一次粒子形成的二次晶粒， 其中二次晶粒具有以下特征：a（003）面取向度为60％以上; 平均粒径为1μm以上且100μm以下的平均粒径; 长宽比为1.0以上且小于2; 3％以上30％以下的空隙率; 平均孔径为0.1μm以上且5μm以下; 以及通过将一次粒子的平均粒径除以0.1以上且5以下的平均孔径而得到的值。

公开(公告)号：US20120049109A1

公开(公告)日：2012-03-01

申请号：US13198366

申请日：2011-08-04

申请人： Ryuta SUGIURA ,  Akira Urakawa ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

发明人： Ryuta SUGIURA ,  Akira Urakawa ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

IPC分类号： H01M4/13

CPC分类号： H01M4/13 ,  C01G45/1242 ,  C01G45/1257 ,  C01G51/42 ,  C01G53/006 ,  C01G53/04 ,  C01G53/42 ,  C01G53/50 ,  C01G53/54 ,  C01P2002/32 ,  C01P2002/52 ,  C01P2004/20 ,  C01P2006/40 ,  H01M4/525 ,  H01M2004/021

摘要： The present invention provides a cathode active material for a lithium secondary battery containing therein an open pore having a protrusion which is formed so as to extend from the inner surface of the open pore toward the center of the open pore. Specifically, the protrusion is formed so as to extend toward the center of a virtual circle formed by approximating the shape of a cross section of the open pore to a circular shape. The protrusion is formed of the same material as the remaining portion of the cathode active material.

摘要翻译： 本发明提供一种锂二次电池用正极活性物质，其中具有开口孔，所述开口孔具有形成为从所述开孔的内表面朝向所述开孔的中心延伸的突起。 具体而言，突出部形成为朝向通过将开孔的截面形状近似为圆形而形成的虚拟圆的中心延伸。 突起由与阴极活性物质的剩余部分相同的材料形成。

公开(公告)号：US20120009470A1

公开(公告)日：2012-01-12

申请号：US13166077

申请日：2011-06-22

申请人： Ryuta Sugiura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki ,  Masaya Ugaji ,  Kaoru Nagata

发明人： Ryuta Sugiura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki ,  Masaya Ugaji ,  Kaoru Nagata

IPC分类号： H01M4/485 ,  H01M4/583 ,  H01M4/64

CPC分类号： H01M4/0404 ,  C01G45/1228 ,  C01G51/42 ,  C01G51/50 ,  C01G53/006 ,  C01G53/04 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/74 ,  C01P2004/62 ,  C01P2006/16 ,  C01P2006/40 ,  C04B35/01 ,  C04B35/016 ,  C04B35/6268 ,  C04B35/62685 ,  C04B38/065 ,  C04B2111/00853 ,  C04B2235/3203 ,  C04B2235/3217 ,  C04B2235/3275 ,  C04B2235/3277 ,  C04B2235/3279 ,  C04B2235/3298 ,  C04B2235/365 ,  C04B2235/442 ,  C04B2235/443 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2235/616 ,  C04B2235/656 ,  C04B2235/6565 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/79 ,  C04B2235/9623 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/122 ,  C04B38/0054 ,  C04B38/0074 ,  C04B38/067

摘要： To provide a lithium secondary battery which has high capacity while maintaining excellent cycle characteristic. The lithium secondary battery cathode of the present invention includes a cathode collector formed of a conductive substance, and a cathode active material layer formed of a sintered lithium composite oxide sheet. The cathode active material layer is bonded to the cathode collector by the mediation of a conductive bonding layer. A characteristic feature of the present invention resides in that the cathode active material layer has a thickness of 30 μm or more, a mean pore size of 0.1 to 5 μm, and a voidage of 3% or more and less than 15%.

摘要翻译： 提供具有高容量的锂二次电池，同时保持优异的循环特性。 本发明的锂二次电池阴极包​​括由导电物质形成的阴极集电体和由烧结的锂复合氧化物片形成的正极活性物质层。 阴极活性物质层通过导电接合层的介导与阴极集电体接合。 本发明的特征在于，正极活性物质层的厚度为30μm以上，平均孔径为0.1〜5μm，空隙率为3％以上且小于15％。