公开(公告)号：US09450246B2

公开(公告)日：2016-09-20

申请号：US13503879

申请日：2010-10-20

申请人： Teppei Takahashi ,  Yoshito Ishii ,  Keiji Okabe ,  Yuriko Ida ,  Nobushige Nakamura

发明人： Teppei Takahashi ,  Yoshito Ishii ,  Keiji Okabe ,  Yuriko Ida ,  Nobushige Nakamura

IPC分类号： H01M4/583 ,  H01M4/587 ,  C01B31/04 ,  H01M10/0525

CPC分类号： H01M4/587 ,  C01B32/20 ,  H01M10/0525

摘要： Disclosed are carbon particles for a negative electrode of a lithium ion secondary battery, the carbon particles having a pore volume of pores having a size of 2×10 to 2×104 Å, of 0.1 ml/g or less with respect to the mass of the carbon particles; having an interlayer distance d(002) of a graphite crystal as determined by an X-ray diffraction analysis, of 3.38 Å or less; having a crystallite size Lc in the C-axis direction of 500 Å or more; and having a degree of circularity of the particle cross-section in the range of 0.6 to 0.9. Therefore, the carbon particles for the negative electrode of the lithium ion secondary battery enables to have high capacity and have superior rapid charge characteristics, a negative electrode for a lithium ion secondary battery using the carbon particles, and a lithium ion secondary battery can be provided.

摘要翻译： 公开了用于锂离子二次电池的负极的碳粒子，相对于质量为0.1ml / g以下，具有2×10〜2×104的尺寸的孔的孔体积的碳粒子 碳颗粒; 通过X射线衍射分析确定的石墨晶体的层间距离d（002）为3.38以下; 其C轴方向的微晶尺寸Lc为500以上; 并且具有在0.6至0.9的范围内的颗粒横截面的圆形度。 因此，锂离子二次电池的负极用碳粒子能够具有高容量且具有优异的快速充电特性，可以提供使用碳粒子的锂离子二次电池用负极和锂离子二次电池 。

公开(公告)号：US08580437B2

公开(公告)日：2013-11-12

申请号：US13359660

申请日：2012-01-27

申请人： Yoshito Ishii ,  Tatsuya Nishida ,  Atsushi Fujita ,  Kazuo Yamada

发明人： Yoshito Ishii ,  Tatsuya Nishida ,  Atsushi Fujita ,  Kazuo Yamada

IPC分类号： H01M4/13

CPC分类号： H01M4/0404 ,  C01B31/04 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  H01M4/0433 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01M4/587 ,  H01M4/621 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/021 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/49115 ,  Y10T428/2982

摘要： A method for forming a negative electrode for a lithium secondary battery, includes providing a paste comprising graphite particulates comprise assembled or bound graphite particles in each of which a plurality of flat-shaped particles are assembled or bound together so that the planes of orientation are not parallel to one another, and the mixture including 3 to 10 parts by weight of the organic binder per 100 parts by weight of the graphite particulates, a binder and a solvent, coating the paste on a current collector, drying the paste coated on the current collector to form a mixture of the graphite particulates and the binder, and integrating the mixture with the current collector by pressing to provide a density of the mixture of graphite particulates and organic binder of 1.5 to 1.9 g/cm3.

摘要翻译： 一种用于形成锂二次电池负极的方法，包括提供包含石墨颗粒的糊料，其包含组装或结合的石墨颗粒，其中多个扁平形颗粒被组装或结合在一起，使得取向平面不是 彼此平行，并且每100重量份的石墨颗粒，粘合剂和溶剂包含3至10重量份的有机粘合剂，将该糊剂涂布在集电器上，干燥涂覆在电流上的浆料 收集器以形成石墨颗粒和粘合剂的混合物，并通过压制将混合物与集流体整合，以提供1.5至1.9g / cm 3的石墨颗粒和有机粘合剂的混合物的密度。

公开(公告)号：US20120219863A1

公开(公告)日：2012-08-30

申请号：US13503879

申请日：2010-10-20

申请人： Teppei Takahashi ,  Yoshito Ishii ,  Keiji Okabe ,  Yuriko Ida ,  Nobushige Nakamura

发明人： Teppei Takahashi ,  Yoshito Ishii ,  Keiji Okabe ,  Yuriko Ida ,  Nobushige Nakamura

IPC分类号： H01M4/583

CPC分类号： H01M4/587 ,  C01B32/20 ,  H01M10/0525

摘要： Disclosed are carbon particles for a negative electrode of a lithium ion secondary battery, the carbon particles having a pore volume of pores having a size of 2×10 to 2×104 Å, of 0.1 ml/g or less with respect to the mass of the carbon particles; having an interlayer distance d(002) of a graphite crystal as determined by an X-ray diffraction analysis, of 3.38 Å or less; having a crystallite size Lc in the C-axis direction of 500 Å or more; and having a degree of circularity of the particle cross-section in the range of 0.6 to 0.9. Therefore, the carbon particles for the negative electrode of the lithium ion secondary battery enables to have high capacity and have superior rapid charge characteristics, a negative electrode for a lithium ion secondary battery using the carbon particles, and a lithium ion secondary battery can be provided.

摘要翻译： 公开了用于锂离子二次电池的负极的碳粒子，相对于质量为0.1ml / g以下，具有2×10〜2×104的尺寸的孔的孔体积的碳粒子 碳颗粒; 通过X射线衍射分析确定的石墨晶体的层间距离d（002）为3.38以下; 其C轴方向的微晶尺寸Lc为500以上; 并且具有在0.6至0.9的范围内的颗粒横截面的圆形度。 因此，锂离子二次电池的负极用碳粒子能够具有高容量且具有优异的快速充电特性，可以提供使用碳粒子的锂离子二次电池用负极和锂离子二次电池 。

公开(公告)号：US20100159323A1

公开(公告)日：2010-06-24

申请号：US12719037

申请日：2010-03-08

申请人： Yoshito Ishii ,  Tatsuya Nishida ,  Atsushi Fujita ,  Kazuo Yamada

发明人： Yoshito Ishii ,  Tatsuya Nishida ,  Atsushi Fujita ,  Kazuo Yamada

IPC分类号： H01M4/62

CPC分类号： H01M4/0404 ,  C01B31/04 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  H01M4/0433 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01M4/587 ,  H01M4/621 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/021 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/49115 ,  Y10T428/2982

摘要： A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m2/g or less or the size of crystallite in the direction of c-axis of the crystal is 500 Å or more and the size of crystallite in the direction of plane is 1,000 Å or less as measured by X ray broad angle diffraction, or a graphite particle in which pore volume of the pores having a size falling in a range of 102 to 106 Å is 0.4 to 2.0 cc/g per weight of graphite particle or pore volume of the pores having a size falling in a range of 1×102 to 2×104 Å is 0.08 to 0.4 cc/g per weight of graphite particle is suitable for production of negative electrode of lithium secondary battery, and a lithium secondary battery obtained therefrom is excellent in rapid charge-discharge characteristics, cycle characteristics, etc.

摘要翻译： 通过将多个平面状的颗粒组装或结合在一起，使得取向平面彼此不平行，或长宽比为5以下的石墨颗粒或比表面积为8m 2 / g的石墨颗粒 或者晶体的c轴方向的微晶尺寸为500以上，并且通过X射线宽角衍射测定的平面方向的微晶尺寸为1000以下，或石墨粒子 其中尺寸在102至106范围内的孔的孔体积为每重量石墨颗粒0.4至2.0cc / g或具有在1×102至2范围内的尺寸的孔的孔体积 ×104Å为0.08〜0.4cc / g，重量的石墨颗粒适用于生产锂二次电池的负极，由此得到的锂二次电池的快速充放电特性，循环特性等优异。

公开(公告)号：US07288342B2

公开(公告)日：2007-10-30

申请号：US11311252

申请日：2005-12-20

申请人： Yoshito Ishii ,  Tatsuya Nishida ,  Atsushi Fujita ,  Kazuo Yamada

发明人： Yoshito Ishii ,  Tatsuya Nishida ,  Atsushi Fujita ,  Kazuo Yamada

IPC分类号： H01M4/58

CPC分类号： H01M4/0404 ,  C01B31/04 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  H01M4/0433 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01M4/587 ,  H01M4/621 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/021 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/49115 ,  Y10T428/2982

摘要： A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m2/g or less or the size of crystallite in the direction of c-axis of the crystal is 500 Å or more and the size of crystallite in the direction of plane is 1,000 Å or less as measured by X ray broad angle diffraction, or a graphite particle in which pore volume of the pores having a size falling in a range of 102 to 106 Å is 0.4 to 2.0 cc/g per weight of graphite particle or pore volume of the pores having a size falling in a range of 1×102 to 2×104 Å is 0.08 to 0.4 cc/g per weight of graphite particle is suitable for production of negative electrode of lithium secondary battery, and a lithium secondary battery obtained therefrom is excellent in rapid charge-discharge characteristics, cycle characteristics, etc.

摘要翻译： 通过将多个平面状的粒子组装或结合在一起而使得取向面不相互平行的方式获得的石墨粒子，纵横比为5以下的石墨粒子或比表面积为8μm< > 2 / g以下，或者晶体的c轴方向的微晶尺寸为500以上，并且通过X射线测定的平面方向的微晶尺寸为1000以下 或广角角衍射的石墨粒子，其中尺寸在10〜10 -6范围内的孔的孔体积为0.4〜2.0cc / g 每个重量的石墨颗粒或具有大于1×10 2至2×10 4范围内的尺寸的孔的孔体积为每重量石墨0.08至0.4cc / g 颗粒适用于生产锂二次电池的负极，并且由其获得的锂二次电池具有优异的快速充放电特性 异能，循环特性等

公开(公告)号：US07273681B2

公开(公告)日：2007-09-25

申请号：US10803036

申请日：2004-03-18

申请人： Hidetoshi Honbo ,  Seiji Takeuchi ,  Hideto Momose ,  Tatsuo Horiba ,  Yasushi Muranaka ,  Yoshito Ishii

发明人： Hidetoshi Honbo ,  Seiji Takeuchi ,  Hideto Momose ,  Tatsuo Horiba ,  Yasushi Muranaka ,  Yoshito Ishii

IPC分类号： H01M4/38

CPC分类号： H01M10/058 ,  C01B32/20 ,  C01P2004/61 ,  C01P2006/80 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/366 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021 ,  Y10T29/49112

摘要： Objects of the present invention is to provide a carbon material having a superior reversibility in lithium intercalation-deintercalation reaction, and a non-aqueous secondary battery using the carbon material as an active material for a negative electrode, which has a high energy density and an excellent rapid charging and discharging characteristics.Graphite powder having a maximum particle diameter of less than 100 μm and an existing fraction of rhombohedral structure in the crystalline structure of less than 20% is used as an active material for the negative electrode of the non-aqueous secondary battery. The graphite powder can be obtained by pulverizing raw graphite with a jet mill, and subsequently treating the powder at a temperature equal to or higher than 900° C.

摘要翻译： 本发明的目的是提供一种具有优异的锂嵌入 - 脱插反应的可逆性的碳材料和使用碳材料作为负极活性物质的非水二次电池，其具有高的能量密度和 出色的快速充放电特性。 作为非水二次电池的负极的活性物质，使用最大粒径小于100μm的石墨粉末和结晶结构中的菱形结构的现有部分小于20％。 石墨粉末可以通过用喷射磨粉碎原料石墨，然后在等于或高于900℃的温度下处理粉末来获得。

公开(公告)号：US20060159996A1

公开(公告)日：2006-07-20

申请号：US11311249

申请日：2005-12-20

申请人： Yoshito Ishii ,  Tatsuya Nishida ,  Atsushi Fujita ,  Kazuo Yamada

发明人： Yoshito Ishii ,  Tatsuya Nishida ,  Atsushi Fujita ,  Kazuo Yamada

IPC分类号： H01M4/58 ,  C01B31/04 ,  H01B1/24

CPC分类号： H01M4/0404 ,  C01B31/04 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  H01M4/0433 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01M4/587 ,  H01M4/621 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/021 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/49115 ,  Y10T428/2982

摘要： A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m2/g or less or the size of crystallite in the direction of c-axis of the crystal is 500 Å or more and the size of crystallite in the direction of plane is 1,000 Å or less as measured by X ray broad angle diffraction, or a graphite particle in which pore volume of the pores having a size falling in a range of 102 to 106 Å is 0.4 to 2.0 cc/g per weight of graphite particle or pore volume of the pores having a size falling in a range of 1×102 to 2×104 Å is 0.08 to 0.4 cc/g per weight of graphite particle is suitable for production of negative electrode of lithium secondary battery, and a lithium secondary battery obtained therefrom is excellent in rapid charge-discharge characteristics, cycle characteristics, etc.

公开(公告)号：US20120328954A1

公开(公告)日：2012-12-27

申请号：US13580675

申请日：2011-02-23

申请人： Keiji Okabe ,  Yoshito Ishii ,  Yuriko Ida

发明人： Keiji Okabe ,  Yoshito Ishii ,  Yuriko Ida

IPC分类号： H01M4/583

CPC分类号： H01M4/366 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021

摘要： Disclosed are: a negative electrode material for a lithium ion secondary battery, which enables the production of one having a smaller irreversible capacity. That is a negative electrode material for a lithium ion secondary battery having a carbon layer formed on a surface of a carbon material as a core, wherein (A) a carbon (002) plane has a plane distance of 3.40 to 3.70 Å (by an XRD measurement), (B) a content ratio of the carbon layer to the carbon material is 0.005 to 0.1, (C) a specific surface area is 0.5 to 10.0 m2/g (by a nitrogen adsorption measurement at 77 K), and (D) a specific surface area Y (by carbon dioxide adsorption at 273 K) and a content ratio X of the carbon layer to the carbon material meet the requirement represented by a formula (I): 0

摘要翻译： 公开了一种用于锂离子二次电池的负极材料，其能够生产具有较小不可逆容量的负极材料。 即，在碳材料的表面形成碳层作为芯的锂离子二次电池用负极材料，（A）碳（002）面的平面距离为3.40〜3.70（通过 XRD测定），（B）碳层与碳材料的含有比例为0.005〜0.1，（C）比表面积为0.5〜10.0m 2 / g（通过77K的氮吸附测定），（ D）比表面积Y（通过273K下的二氧化碳吸附）和碳层与碳材料的含量比X满足式（I）所示的要求：0

公开(公告)号：US07906240B2

公开(公告)日：2011-03-15

申请号：US10586304

申请日：2004-01-16

申请人： Yoshito Ishii ,  Souichirou Suda ,  Tatsuya Nishida

发明人： Yoshito Ishii ,  Souichirou Suda ,  Tatsuya Nishida

IPC分类号： H01M4/58 ,  H01M4/62

CPC分类号： H01M4/043 ,  C01B32/20 ,  H01M4/02 ,  H01M4/0404 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021

摘要： A negative electrode for a lithium secondary battery, comprising a layer of a mixture containing graphite powder and an organic binder on a current collector, wherein a diffraction intensity ratio (002)/(110) measured by X-ray diffractometry of the layer of a mixture is 500 or less, and a lithium secondary battery, comprising the negative electrode for a lithium secondary battery, and a positive electrode that includes a lithium compound. It results less deterioration in the rapid charge and discharge characteristics and the cycle characteristics when the density of the negative electrode is made higher. Thereby it provides a high capacity lithium secondary battery having the improved energy density per unit volume of the secondary battery.

摘要翻译： 一种锂二次电池用负极，其特征在于，在集电体上含有含有石墨粉末和有机粘合剂的混合物层，其中通过X射线衍射法测定的衍射强度比（002）/（110） 混合物为500以下，并且包括锂二次电池用负极和包含锂化合物的正极的锂二次电池。 当使负极的密度提高时，快速充放电特性和循环特性降低。 从而提供了具有改善的二次电池单位体积能量密度的高容量锂二次电池。

公开(公告)号：US07700239B2

公开(公告)日：2010-04-20

申请号：US12170466

申请日：2008-07-10

申请人： Yoshito Ishii ,  Tatsuya Nishida ,  Atsushi Fujita ,  Kazuo Yamada

发明人： Yoshito Ishii ,  Tatsuya Nishida ,  Atsushi Fujita ,  Kazuo Yamada

IPC分类号： H01M4/58

CPC分类号： H01M4/0404 ,  C01B31/04 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  H01M4/0433 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01M4/587 ,  H01M4/621 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/021 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/49115 ,  Y10T428/2982

摘要： A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m2/g or less or the size of crystallite in the direction of c-axis of the crystal is 500 Å or more and the size of crystallite in the direction of plane is 1,000 Å or less as measured by X ray broad angle diffraction, or a graphite particle in which pore volume of the pores having a size falling in a range of 102 to 106 Å is 0.4 to 2.0 cc/g per weight of graphite particle or pore volume of the pores having a size falling in a range of 1×102 to 2×104 Å is 0.08 to 0.4 cc/g per weight of graphite particle is suitable for production of negative electrode of lithium secondary battery, and a lithium secondary battery obtained therefrom is excellent in rapid charge-discharge characteristics, cycle characteristics, etc.

摘要翻译： 通过将多个平面状的颗粒组装或结合在一起，使得取向平面彼此不平行，或长宽比为5以下的石墨颗粒或比表面积为8m 2 / g的石墨颗粒 或者晶体的c轴方向的微晶尺寸为500以上，并且通过X射线宽角衍射测定的平面方向的微晶尺寸为1000以下，或石墨粒子 其中尺寸在102至106范围内的孔的孔体积为每重量石墨颗粒0.4至2.0cc / g或具有在1×102至2范围内的尺寸的孔的孔体积 ×104Å为0.08〜0.4cc / g，重量的石墨颗粒适用于生产锂二次电池的负极，由此得到的锂二次电池的快速充放电特性，循环特性等优异。