公开(公告)号：US20110318641A1

公开(公告)日：2011-12-29

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： H01M4/583 ,  B32B5/16 ,  H01M4/24

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：US20110318640A1

公开(公告)日：2011-12-29

申请号：US13165337

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： H01M4/583 ,  B32B5/16 ,  H01M4/24

CPC分类号： H01M4/131 ,  C01G51/42 ,  C01G53/006 ,  C01G53/04 ,  C01G53/42 ,  C01P2002/52 ,  C01P2002/74 ,  C01P2004/22 ,  C01P2006/16 ,  C01P2006/40 ,  H01M4/525 ,  H01M10/0525 ,  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 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，平均孔径为0.1〜5μm，空隙率为3％以上 超过15％

公开(公告)号：US20100159333A1

公开(公告)日：2010-06-24

申请号：US12644381

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： H01M4/583 ,  H01M4/88 ,  H01M4/58

CPC分类号： C01G51/04 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/50 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2004/03 ,  C01P2004/20 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/02 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028

摘要： By exposing the crystal plane (a plane other than the (003) plane: e.g., the (101) plane and (104) plane) through which lithium ions are favorably intercalated and deintercalated, more to an electrolyte, characteristics such as cell capacity is improved. The present invention relates a plate-like particle for a lithium secondary battery cathode active material. The particle has a layered rock salt structure. The (003) plane is oriented in a direction intersecting a particle plate surface. The porosity is 10% or less. The ratio of an observed surface area (β) determined from a measured value of a BET specific surface area to a virtual surface area (α) of the particle which is defined by the planar shape and thickness of the particle on the assumption that the plate surface is smooth, β/α is 3 or more and 10 or less

摘要翻译： 通过将晶体平面（除（003）面以外的平面（例如，（101）面和（104）面）暴露于锂离子有利地插入和脱嵌的情况下，更多地暴露于电解质，电池容量等特性 改进。 本发明涉及锂二次电池正极活性物质的板状颗粒。 颗粒具有层状岩盐结构。 （003）面在与颗粒板表面相交的方向上取向。 孔隙率为10％以下。 由BET比表面积的测定值与粒子的虚拟表面积（α）确定的观察到的表面积（＆bgr）的比例，其由粒子的平面形状和厚度确定，假定 板表面光滑，＆bgr; /α为3以上且10以下

公开(公告)号：US20100159330A1

公开(公告)日：2010-06-24

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： H01M4/36 ,  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.[Means for Solution] 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。 [解决方案]板状颗粒或锂二次电池正极活性物质的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：US20100159325A1

公开(公告)日：2010-06-24

申请号：US12644356

申请日：2009-12-22

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

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

IPC分类号： H01M4/525 ,  H01M4/505

CPC分类号： H01M4/505 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/50 ,  C01P2002/74 ,  C01P2004/20 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021

摘要： An object of the present invention is to provide a multi-component system (cobalt-nickel-manganese three-component system) cathode active material for a lithium secondary battery which has improved characteristic as compared with conventional lithium secondary batteries and a layered rock salt structure. A plate-like particle or a film for a lithium secondary battery cathode active material is represented by the following general formula: Lip(Cox,Niy,Mnz)O2  General formula (wherein 0.97≦p≦1.07, 0.1

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特性的多组分系统（钴镍锰三组分体系）用于锂二次电池的阴极活性材料和层状岩盐结构 。 锂二次电池正极活性物质的板状颗粒或膜由以下通式表示：Lip（Cox，Niy，Mnz）O 2通式（其中0.97＆nlE; p＆nlE; 1.07,0.1

公开(公告)号：US20200058936A1

公开(公告)日：2020-02-20

申请号：US16484697

申请日：2018-02-08

申请人： Daisuke HORIKAWA ,  Ryuta SUGIURA ,  Taira AIDA ,  Satoshi KANADA ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  SUMITOMO METAL MINING CO., LTD.

发明人： Daisuke HORIKAWA ,  Ryuta SUGIURA ,  Taira AIDA ,  Satoshi KANADA

IPC分类号： H01M4/525 ,  H01M4/505

摘要： A positive electrode composite material for a lithium ion secondary battery that makes it possible to appropriately reduce the electric resistance in a positive electrode and to realize a high-performance lithium ion secondary battery. The positive electrode composite material to be used in the positive electrode of the lithium ion secondary battery includes a particulate positive electrode active material composed of a lithium composite oxide having a layered crystal structure including at least lithium, and a conductive oxide. Here, a particulate region where primary particles of the conductive oxide are aggregated, and a film-shaped region where the conductive oxide is formed in a film shape adhere to at least a part of the surface of the positive electrode active material. The average particle diameter based on cross-sectional TEM observation of primary particles in the particulate region is equal to or greater than 0.3 nm, and in cross-sectional TEM observation of the film-shaped region, no particles with a particle diameter equal to or greater than 0.3 nm are observed, and there are no voids equal to or greater than 2 nm.

公开(公告)号：US08821765B2

公开(公告)日：2014-09-02

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： H01B1/08 ,  H01M4/525 ,  H01M4/505

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：US08815445B2

公开(公告)日：2014-08-26

申请号：US13431062

申请日：2012-03-27

申请人： Ryuta Sugiura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

发明人： Ryuta Sugiura ,  Nobuyuki Kobayashi ,  Tsutomu Nanataki

IPC分类号： H01M4/13 ,  H01M4/24

CPC分类号： H01M4/24 ,  H01M4/13 ,  H01M4/131 ,  H01M4/366 ,  H01M4/625

摘要： Provided is a cathode active material for a lithium secondary battery, which can achieve both of excellent rate characteristic and practically sufficient durability (cycle characteristic) in the lithium secondary battery. The cathode active material for a lithium secondary battery includes therein pores. A particle or film of the cathode active material for a lithium secondary battery has formed therein a large number of pores. The inner wall of each of such pores is coated with a conductive film.

摘要翻译： 提供一种用于锂二次电池的阴极活性材料，其可以实现锂二次电池的优异的速率特性和实际上足够的耐久性（循环特性）。 用于锂二次电池的阴极活性材料包括孔。 用于锂二次电池的阴极活性材料的颗粒或膜形成有大量的孔。 每个这样的孔的内壁涂覆有导电膜。

公开(公告)号：US20120009471A1

公开(公告)日：2012-01-12

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

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：US20110311437A1

公开(公告)日：2011-12-22

申请号：US13165307

申请日：2011-06-21

申请人： Yukinobu YURA ,  Nobuyuki KOBAYASHI ,  Tsutomu NANATAKI ,  Kazuyuki KAIGAWA ,  Ryuta SUGIURA

发明人： Yukinobu YURA ,  Nobuyuki KOBAYASHI ,  Tsutomu NANATAKI ,  Kazuyuki KAIGAWA ,  Ryuta SUGIURA

IPC分类号： C01D15/00

CPC分类号： C01D15/02 ,  C01G45/1221 ,  C01G45/1242 ,  C01P2002/32 ,  C01P2002/52 ,  C01P2004/61 ,  C01P2006/40

摘要： The production method of the present invention includes (A) a forming step of forming into a sheet-like compact a raw material containing at least a manganese compound and not containing a lithium compound; (B) a first firing step of firing the sheet-like compact formed through the forming step; and (C) a second firing step of firing a mixture of the fired compact obtained through the first firing step and a lithium compound at a temperature lower than the firing temperature employed in the first firing step.

摘要翻译： 本发明的制造方法包括（A）成形为片状成形体的至少含有锰化合物而不含锂化合物的原料的成形工序; （B）烧成通过成形工序形成的片状成形体的第一烧成工序; 和（C）第二烧成工序，在比第一烧成工序中使用的烧成温度低的温度下，烧成通过第一烧成工序得到的烧结体和锂化合物的混合物。