公开(公告)号：US20110206990A1

公开(公告)日：2011-08-25

申请号：US13126024

申请日：2009-10-07

申请人： Ryuichi Akagi ,  Hiroaki Kitayama ,  Yoshinobu Ishikawa ,  Kenichi Nishimura ,  Takamitsu Saito ,  Tamaki Miura ,  Hiroshi Miyakubo

发明人： Ryuichi Akagi ,  Hiroaki Kitayama ,  Yoshinobu Ishikawa ,  Kenichi Nishimura ,  Takamitsu Saito ,  Tamaki Miura ,  Hiroshi Miyakubo

IPC分类号： H01M4/485 ,  C01D1/02 ,  C01G45/12 ,  C01G53/04 ,  C01G51/04

CPC分类号： H01M4/1391 ,  C01G45/1228 ,  C01G51/42 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  H01M4/02 ,  H01M4/0471 ,  H01M4/485 ,  H01M2004/021

摘要： A sintered lithium complex oxide characterized in that the sintered lithium complex oxide is constituted by sintering fine particles of a lithium complex oxide, the peak pore size giving the maximum differential pore volume is 0.80-5.00 μm, the total pore volume is 0.10-2.00 mL/g, the average particle size is not less than the above-specified peak pore size but not more than 20 μm, there is a sub-peak giving a differential pore volume not less than 10% of the maximum differential pore volume on the smaller pore size side with respect to the above-specified peak pore size, the pore size corresponding to the sub-peak is more than 0.50 μm but not more than 2.00 μm, the BET specific surface area of the sintered lithium complex oxide is 1.0-10.0 m2/g, and the half width of the maximum peak among X-ray diffraction peaks in an X-ray diffraction measurement is 0.12-0.30 deg.

摘要翻译： 一种烧结锂复合氧化物，其特征在于，烧结锂复合氧化物是通过烧结锂复合氧化物的细颗粒构成的，提供最大微孔容积的峰值孔径为0.80-5.00μm，总孔体积为0.10-2.00mL / g，平均粒径不小于上述规定的峰值孔径但不大于20μm，具有不小于最大微孔容积的10％的微孔容积的次峰值在较小的 相对于上述规定的峰值孔径的孔径侧，与亚峰对应的孔径大于0.50μm且不大于2.00μm，烧结的锂复合氧化物的BET比表面积为1.0〜10.0 m 2 / g，X射线衍射测定中的X射线衍射峰中的最大峰的半值宽度为0.12-0.30度。

公开(公告)号：US08465872B2

公开(公告)日：2013-06-18

申请号：US12595088

申请日：2008-04-07

申请人： Ryuichi Akagi ,  Kenichi Nishimura ,  Yasuhisa Fukumoto ,  Kyoichi Watanabe ,  Tamaki Miura ,  Takamitsu Saito

发明人： Ryuichi Akagi ,  Kenichi Nishimura ,  Yasuhisa Fukumoto ,  Kyoichi Watanabe ,  Tamaki Miura ,  Takamitsu Saito

IPC分类号： H01M4/58 ,  H01M4/02

CPC分类号： H01M4/131 ,  C01G45/1228 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/021

摘要： The positive electrode active material sintered body for a battery of the present invention is a positive electrode active material sintered body for a battery satisfying the following requirements (I) to (VII): (I) fine particles in a positive electrode active material are sintered to constitute the sintered body; (II) a peak pore diameter which provides a maximum differential pore volume value in a pore diameter range of 0.01 to 10 μm in a pore distribution is 0.3 to 5 μm; (III) a total pore volume is 0.1 to 1 cc/g; (IV) an average particle diameter is not less than the peak pore diameter and not more than 20 μm; (V) any peak, which provides a differential pore volume value of not less than 10% of the maximum differential pore volume value, is not present on a smaller pore diameter side than the peak pore diameter in the pore distribution; (VI) a BET specific surface area is 1 to 6 m2/g; and (VII) a full width at half maximum of a strongest X-ray diffraction peak is 0.13 to 0.2.

摘要翻译： 本发明的电池用正极活性物质烧结体是满足下述（I）〜（VII）的要求的电池用正极活性物质烧结体：（I）将正极活性物质中的微粒烧结 构成烧结体; （II）在孔分布中在0.01〜10μm的孔径范围内提供最大微孔容积值的峰值孔径为0.3〜5μm; （III）总孔体积为0.1〜1cc / g; （IV）平均粒径不小于峰值孔径且不大于20μm; （V）提供不小于最大微分孔体积值的10％的不同孔体积值的任何峰不存在于比孔分布中的峰值孔径更小的孔径侧上; （VI）BET比表面积为1〜6m 2 / g; 和（VII）最强X射线衍射峰的半峰全宽为0.13〜0.2。

公开(公告)号：US08003015B2

公开(公告)日：2011-08-23

申请号：US12305914

申请日：2007-06-27

申请人： Kazuo Oki ,  Yasuhisa Fukumoto ,  Ryuichi Akagi ,  Kenichi Nishimura ,  Taketo Kaneko ,  Tamaki Miura ,  Takamitsu Saito ,  Mikio Kawai ,  Mieko Kawai, legal representative

发明人： Kazuo Oki ,  Yasuhisa Fukumoto ,  Ryuichi Akagi ,  Kenichi Nishimura ,  Taketo Kaneko ,  Tamaki Miura ,  Takamitsu Saito ,  Mikio Kawai

IPC分类号： H01B1/04

CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/621 ,  H01M4/625 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/021 ,  Y02T10/7011

摘要： The present invention provides a composite positive electrode material for a lithium ion battery, which is particularly excellent in high-rate discharge characteristics in a battery, and also provides a slurry, positive electrode and battery using the composite positive electrode material. The composite positive electrode material for a lithium ion battery contains: a positive electrode active material (a); a conductive material (b) having a primary particle diameter of 10 to 100 nm and/or a fibrous conductive material (c) having a fiber diameter of 1 nm to 1 μm; and a conductive material (d) having an aspect ratio of 2 to 50.

摘要翻译： 本发明提供了一种用于锂离子电池的复合正极材料，其在电池中的高倍率放电特性方面特别优异，并且还提供了使用复合正极材料的浆料，正极和电池。 锂离子电池用复合正极材料包含：正极活性物质（a）; 一次粒径为10〜100nm的导电材料（b）和/或纤维直径为1nm〜1μm的纤维状导电材料（c） 以及纵横比为2〜50的导电材料（d）。

公开(公告)号：US20100140554A1

公开(公告)日：2010-06-10

申请号：US12305914

申请日：2007-06-27

申请人： Kazuo Oki ,  Yasuhisa Fukumoto ,  Ryuichi Akagi ,  Kenichi Nishimura ,  Taketo Kaneko ,  Tamaki Miura ,  Takamitsu Saito ,  Mikio Kawai

发明人： Kazuo Oki ,  Yasuhisa Fukumoto ,  Ryuichi Akagi ,  Kenichi Nishimura ,  Taketo Kaneko ,  Tamaki Miura ,  Takamitsu Saito ,  Mikio Kawai

IPC分类号： H01B1/20

CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/621 ,  H01M4/625 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/021 ,  Y02T10/7011

摘要： Disclosed is a composite positive electrode material for lithium ion batteries, which especially enables to achieve excellent high-rate discharge characteristics in a battery. Also disclosed are a slurry, positive electrode and battery using such a composite positive electrode material. Specifically disclosed is a composite positive electrode material for lithium ion batteries, which contains a positive electrode active material (a), a conductive substance (b) having a primary particle diameter of 10-100 nm and/or a fibrous conductive substance (c) having a fiber diameter of from 1 nm to 1 μm, and a conductive substance (d) having an aspect ratio of 2-50. This composite positive electrode material for lithium ion batteries is obtained by mixing the conductive substance (d) with a composition containing the positive electrode active material (a), the conductive substance (b) and/or the conductive substance (c), which composition is obtained by dispersing the positive electrode active material (a), the conductive substance (b) and/or the conductive substance (c) in a solvent to a state where they are forcibly dispersed, and then agglutinating them.

摘要翻译： 公开了一种用于锂离子电池的复合正极材料，其特别能够在电池中实现优异的高速率放电特性。 还公开了使用这种复合正极材料的浆料，正极和电池。 具体公开了包含正极活性物质（a），一次粒径为10〜100nm的导电物质（b）和/或纤维状导电性物质（c））的锂离子电池用复合正极材料， 纤维直径为1nm〜1μm，长径比为2-50的导电性物质（d）。 这种锂离子电池用复合正极材料通过将导电性物质（d）与含有正极活性物质（a），导电性物质（b）和/或导电性物质（c）的组合物混合而获得，该组合物 通过将正极活性物质（a），导电性物质（b）和/或导电性物质（c）分散在溶剂中而成为强制分散状态，然后使其凝集而得到。

公开(公告)号：US20100119945A1

公开(公告)日：2010-05-13

申请号：US12595088

申请日：2008-04-07

申请人： Ryuichi Akagi ,  Kenichi Nishimura ,  Yasuhisa Fukumoto ,  Kyoichi Watanabe ,  Tamaki Miura ,  Takamitsu Saito

发明人： Ryuichi Akagi ,  Kenichi Nishimura ,  Yasuhisa Fukumoto ,  Kyoichi Watanabe ,  Tamaki Miura ,  Takamitsu Saito

IPC分类号： H01M4/58 ,  H01M4/02

CPC分类号： H01M4/131 ,  C01G45/1228 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/021

摘要： The positive electrode active material sintered body for a battery of the present invention is a positive electrode active material sintered body for a battery satisfying the following requirements (I) to (VII): (I) fine particles in a positive electrode active material are sintered to constitute the sintered body; (II) a peak pore diameter which provides a maximum differential pore volume value in a pore diameter range of 0.01 to 10 μm in a pore distribution is 0.3 to 5 μm; (III) a total pore volume is 0.1 to 1 cc/g; (IV) an average particle diameter is not less than the peak pore diameter and not more than 20 μm; (V) any peak, which provides a differential pore volume value of not less than 10% of the maximum differential pore volume value, is not present on a smaller pore diameter side than the peak pore diameter in the pore distribution; (VI) a BET specific surface area is 1 to 6 m2/g; and (VII) a full width at half maximum of a strongest X-ray diffraction peak is 0.13 to 0.2.

摘要翻译： 本发明的电池用正极活性物质烧结体是满足下述（I）〜（VII）的要求的电池用正极活性物质烧结体：（I）将正极活性物质中的微粒烧结 构成烧结体; （II）在孔分布中在0.01〜10μm的细孔径范围内提供最大微孔容积值的峰值孔径为0.3〜5μm; （III）总孔体积为0.1〜1cc / g; （IV）的平均粒径不小于峰值孔径且不大于20μm; （V）提供不小于最大微分孔体积值的10％的不同孔体积值的任何峰不存在于比孔分布中的峰值孔径更小的孔径侧上; （VI）BET比表面积为1〜6m 2 / g; 和（VII）最强X射线衍射峰的半峰全宽为0.13〜0.2。

公开(公告)号：US20110204301A1

公开(公告)日：2011-08-25

申请号：US13125988

申请日：2009-10-07

申请人： Ryuichi Akagi ,  Yoshinobu Ishikawa ,  Kenichi Nishimura

发明人： Ryuichi Akagi ,  Yoshinobu Ishikawa ,  Kenichi Nishimura

IPC分类号： H01B1/20 ,  H01M4/88

CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/621 ,  H01M10/0525 ,  Y02T10/7011

摘要： A process of producing positive electrode active material particles for a battery, comprising a step of providing a slurry comprising resin particles, a cationic surfactant and/or a polyvinyl alcohol derivative, lithium complex oxide particles, and a polar solvent; removing the polar solvent from the slurry to give a composition; and firing the composition and at the same time, removing the resin particles from the composition, wherein the cationic surfactant is a quaternary ammonium salt, the polyvinyl alcohol derivative is a polyvinyl alcohol into which a quaternary ammonium salt group has been introduced or which has been substituted by a quaternary ammonium salt group, and the resin particles have an average particle size of 0.1 to 20 μm.

摘要翻译： 一种生产电池用正极活性物质粒子的方法，包括提供包含树脂颗粒，阳离子表面活性剂和/或聚乙烯醇衍生物，锂复合氧化物颗粒和极性溶剂的浆料的步骤; 从浆液中除去极性溶剂得到组合物; 并焙烧组合物，同时从组合物中除去树脂颗粒，其中阳离子表面活性剂是季铵盐，聚乙烯醇衍生物是已经引入季铵盐基团的聚乙烯醇 被季铵盐基团取代，树脂粒子的平均粒径为0.1〜20μm。

公开(公告)号：US08562857B2

公开(公告)日：2013-10-22

申请号：US13125988

申请日：2009-10-07

申请人： Ryuichi Akagi ,  Yoshinobu Ishikawa ,  Kenichi Nishimura

发明人： Ryuichi Akagi ,  Yoshinobu Ishikawa ,  Kenichi Nishimura

IPC分类号： H01M4/88

CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/621 ,  H01M10/0525 ,  Y02T10/7011

摘要： A process of producing positive electrode active material particles for a battery, comprising a step of providing a slurry comprising resin particles, a cationic surfactant and/or a polyvinyl alcohol derivative, lithium complex oxide particles, and a polar solvent; removing the polar solvent from the slurry to give a composition; and firing the composition and at the same time, removing the resin particles from the composition, wherein the cationic surfactant is a quaternary ammonium salt, the polyvinyl alcohol derivative is a polyvinyl alcohol into which a quaternary ammonium salt group has been introduced or which has been substituted by a quaternary ammonium salt group, and the resin particles have an average particle size of 0.1 to 20 μm.

摘要翻译： 一种生产电池用正极活性物质粒子的方法，包括提供包含树脂颗粒，阳离子表面活性剂和/或聚乙烯醇衍生物，锂复合氧化物颗粒和极性溶剂的浆料的步骤; 从浆液中除去极性溶剂得到组合物; 并焙烧组合物，同时从组合物中除去树脂颗粒，其中阳离子表面活性剂是季铵盐，聚乙烯醇衍生物是已经引入季铵盐基团的聚乙烯醇 被季铵盐基团取代，树脂粒子的平均粒径为0.1〜20μm。

公开(公告)号：US08241525B2

公开(公告)日：2012-08-14

申请号：US12303933

申请日：2007-06-27

申请人： Kazuo Oki ,  Yasuhisa Fukumoto ,  Ryuichi Akagi ,  Kenichi Nishimura

发明人： Kazuo Oki ,  Yasuhisa Fukumoto ,  Ryuichi Akagi ,  Kenichi Nishimura

IPC分类号： H01B1/04

CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/621 ,  H01M4/624 ,  H01M4/625 ,  H01M4/661 ,  H01M10/0525 ,  Y02T10/7011

摘要： The present invention provides a method for producing a composite material for positive electrodes of lithium batteries which is particularly excellent in high-rate discharge characteristics. The method for producing a composite material for positive electrodes of lithium batteries, contains: a dispersing step of dispersing at least the positive electrode active material and the conductive material 1 in a solvent to be in a forcibly dispersed state; and a composite particle-forming step of obtaining composite particles containing the positive electrode active material and the conductive material 1 by a process for agglutinating the conductive material 1 together with the positive electrode active material in the solvent or by a process for removing the solvent.

摘要翻译： 本发明提供一种特别优异的高倍率放电特性的锂电池用正极复合材料的制造方法。 锂电池用正极复合材料的制造方法包括：使至少将正极活性物质和导电材料1分散在溶剂中的分散工序为强制分散状态; 以及通过使导电材料1与正极活性物质一起在溶剂中凝集的方法或通过除去溶剂的方法获得含有正极活性物质和导电性物质1的复合粒子的复合粒子形成工序。

公开(公告)号：US20100230641A1

公开(公告)日：2010-09-16

申请号：US12303933

申请日：2007-06-27

申请人： Kazuo Oki ,  Yasuhisa Fukumoto ,  Ryuichi Akagi ,  Kenichi Nishimura

发明人： Kazuo Oki ,  Yasuhisa Fukumoto ,  Ryuichi Akagi ,  Kenichi Nishimura

IPC分类号： H01B1/04 ,  H01B1/00

CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/621 ,  H01M4/624 ,  H01M4/625 ,  H01M4/661 ,  H01M10/0525 ,  Y02T10/7011

摘要： The present invention provides a method for producing a composite material for positive electrodes of lithium batteries which is particularly excellent in high-rate discharge characteristics. The method for producing a composite material for positive electrodes of lithium batteries, contains: a dispersing step of dispersing at least the positive electrode active material and the conductive material 1 in a solvent to be in a forcibly dispersed state; and a composite particle-forming step of obtaining composite particles containing the positive electrode active material and the conductive material 1 by a process for agglutinating the conductive material 1 together with the positive electrode active material in the solvent or by a process for removing the solvent.

摘要翻译： 本发明提供一种特别优异的高倍率放电特性的锂电池用正极复合材料的制造方法。 锂电池用正极复合材料的制造方法包括：使至少将正极活性物质和导电材料1分散在溶剂中的分散工序为强制分散状态; 以及通过使导电材料1与正极活性物质一起在溶剂中凝集的方法或通过除去溶剂的方法获得含有正极活性物质和导电性物质1的复合粒子的复合粒子形成工序。

公开(公告)号：US20100117031A1

公开(公告)日：2010-05-13

申请号：US12593253

申请日：2008-04-07

申请人： Ryuichi Akagi ,  Kenichi Nishimura ,  Yasuhisa Fukumoto

发明人： Ryuichi Akagi ,  Kenichi Nishimura ,  Yasuhisa Fukumoto

IPC分类号： H01M4/04 ,  H01M4/48 ,  H01B1/00

CPC分类号： H01M4/139 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M2004/021 ,  H01M2004/028

摘要： It is an object of the present invention to provide a method for producing a positive electrode active material for a battery, which can realize easy regulation of pore size in porosity formation of a positive electrode active material and is less likely to undergo hindrance of ion conduction caused by residues and, thus, can realize excellent high-rate discharge characteristics, and a method for producing a composition for a battery using the positive electrode active material for the battery. The method for producing a positive electrode active material for a battery of the present invention is a method for producing a positive electrode active material for a battery, including: a step 1 of firing a mixture of a raw material for the positive electrode active material and carbon particles to remove the carbon particles; and a step 2 of milling and classifying a fired body obtained in the step 1.

摘要翻译： 本发明的目的是提供一种用于制造电池用正极活性物质的方法，其可以实现容易调节正极活性物质的孔隙形成中的孔径，并且不太可能受到离子传导的阻碍 由残留物引起，因此可以实现优异的高倍率放电特性，以及使用电池用正极活性物质制造电池用组合物的方法。 本发明的电池用正极活性物质的制造方法是电池用正极活性物质的制造方法，其特征在于，包括：将正极活性物质的原料和 碳颗粒去除碳颗粒; 以及在步骤1中获得的研磨和分级烧制体的步骤2。