公开(公告)号：US09761873B2

公开(公告)日：2017-09-12

申请号：US14118372

申请日：2012-06-25

Applicant: Hitohiko Ide ,  Daisuke Inoue ,  Shinya Kagei ,  Natsumi Shibamura ,  Yasunori Tabira

Inventor： Hitohiko Ide ,  Daisuke Inoue ,  Shinya Kagei ,  Natsumi Shibamura ,  Yasunori Tabira

IPC: H01M4/38 ,  C01B33/02 ,  H01M4/134 ,  H01M10/0525

CPC classification number: H01M4/386 ,  C01B33/02 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0525

Abstract: A negative electrode active material for nonaqueous secondary batteries is disclosed. The active material contains a silicon solid solution having one or more than one of a group 3 semimetal or metal element, a group 4 semimetal or metal element except silicon, and a group 5 nonmetal or semimetal element incorporated in silicon as a solute element. The solute element is present more on the crystal grain boundaries of the silicon solid solution than inside the grains.

公开(公告)号：US20120319038A1

公开(公告)日：2012-12-20

申请号：US13581804

申请日：2011-03-08

Applicant: Hitohiko Ide ,  Daisuke Inoue ,  Yanko Marinov Todorov ,  Natsumi Shibamura ,  Yasunori Tabira

Inventor： Hitohiko Ide ,  Daisuke Inoue ,  Yanko Marinov Todorov ,  Natsumi Shibamura ,  Yasunori Tabira

IPC: H01M4/38

CPC classification number: H01M4/386 ,  C22C28/00 ,  H01M4/134 ,  H01M4/362 ,  H01M10/052

Abstract: A negative electrode active material for nonaqueous secondary batteries containing a silicon solid solution. The silicon solid solution has one or more than one of a group 3 semimetal or metal element, a group 4 semimetal or metal element except silicon, and a group 5 nonmetal or semimetal element incorporated in silicon. The solid solution shows an XRD pattern in which the position of the XRD peak of the solid solution corresponding to the XRD peak position assigned to the (422) plane of silicon shifts to the smaller or greater angle side relative to the position of the XRD peak assigned to the (422) plane of silicon peak by 0.1° to 1°. The solid solution has a lattice strain of 0.01% to 1% as determined by XRD.

Abstract translation: 一种含有硅固溶体的非水二次电池用负极活性物质。 硅固溶体具有3族半金属或金属元素，除了硅以外的第4族半金属或金属元素以及掺入硅中的第5族非金属或半金属元素中的一种或多种。 固溶体示出了XRD图案，其中对应于分配给硅的（422）面的XRD峰位置的固溶体的XRD峰位置相对于XRD峰的位置移动到较小或更大的角度一侧 分配给硅峰的（422）平面0.1°至1°。 通过XRD测定，固溶体的晶格应变为0.01％〜1％。

公开(公告)号：US20140183406A1

公开(公告)日：2014-07-03

申请号：US14118372

申请日：2012-06-25

Applicant: Hitohiko Ide ,  Daisuke Inoue ,  Shinya Kagei ,  Natsumi Shibamura ,  Yasunori Tabira

Inventor： Hitohiko Ide ,  Daisuke Inoue ,  Shinya Kagei ,  Natsumi Shibamura ,  Yasunori Tabira

IPC: H01M4/38

CPC classification number: H01M4/386 ,  C01B33/02 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0525

Abstract: This negative electrode active material for nonaqueous electrolyte secondary batteries contains a silicon solid solution in which one or more elements selected from among group 3 semimetal elements and metal elements, group 4 semimetal elements and metal elements (excluding silicon) and group 5 non-metallic elements and semimetal elements are solid-solved in silicon. The elements solid-solved in silicon are present more at the crystal grain boundaries than in the inner portions of the crystal grains in the silicon solid solution.

Abstract translation: 该非水电解质二次电池用负极活性物质含有选自组3半金属元素和金属元素中的一种或多种元素，第4族半金属元素和金属元素（不包括硅）和第5族非金属元素的硅固溶体 并且半金属元素在硅中固溶。 在硅中固溶的元素比在硅固溶体中的晶粒的内部更多地存在于晶界。

公开(公告)号：US08632695B2

公开(公告)日：2014-01-21

申请号：US13581804

申请日：2011-03-08

Applicant: Hitohiko Ide ,  Daisuke Inoue ,  Yanko Marinov Todorov ,  Natsumi Shibamura ,  Yasunori Tabira

Inventor： Hitohiko Ide ,  Daisuke Inoue ,  Yanko Marinov Todorov ,  Natsumi Shibamura ,  Yasunori Tabira

IPC: H01B1/04 ,  H01M4/38

CPC classification number: H01M4/386 ,  C22C28/00 ,  H01M4/134 ,  H01M4/362 ,  H01M10/052

Abstract: A negative electrode active material for nonaqueous secondary batteries containing a silicon solid solution. The silicon solid solution has one or more than one of a group 3 semimetal or metal element, a group 4 semimetal or metal element except silicon, and a group 5 nonmetal or semimetal element incorporated in silicon. The solid solution shows an XRD pattern in which the position of the XRD peak of the solid solution corresponding to the XRD peak position assigned to the (422) plane of silicon shifts to the smaller or greater angle side relative to the position of the XRD peak assigned to the (422) plane of silicon peak by 0.1° to 1°. The solid solution has a lattice strain of 0.01% to 1% as determined by XRD.

Abstract translation: 一种含有硅固溶体的非水二次电池用负极活性物质。 硅固溶体具有3族半金属或金属元素，除了硅以外的第4族半金属或金属元素以及掺入硅中的第5族非金属或半金属元素中的一种或多种。 固溶体示出了XRD图案，其中对应于分配给硅的（422）面的XRD峰位置的固溶体的XRD峰位置相对于XRD峰的位置移动到较小或更大的角度一侧 分配给硅峰的（422）平面0.1°至1°。 通过XRD测定，固溶体的晶格应变为0.01％〜1％。

公开(公告)号：US20100233543A1

公开(公告)日：2010-09-16

申请号：US12377732

申请日：2007-09-28

Applicant: Koichi Numata ,  Takashi Okamoto ,  Hitohiko Ide ,  Yasunori Tabira ,  Akihiro Modeki

Inventor： Koichi Numata ,  Takashi Okamoto ,  Hitohiko Ide ,  Yasunori Tabira ,  Akihiro Modeki

IPC: H01M4/50 ,  H02J7/04 ,  H02J7/00

CPC classification number: H01M4/505 ,  H01M4/131 ,  H01M4/134 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/525 ,  H01M10/052 ,  H01M10/446 ,  H01M2010/4292

Abstract: A nonaqueous secondary battery comprising a positive electrode which has a positive electrode active material layer containing Li(LixMn2xCo1-3x)O2 wherein x represents 0

Abstract translation: 一种非水系二次电池，其具有正极，该正极具有含有Li（LixMn2xCo1-3x）O 2的正极活性物质层，其中x表示0

公开(公告)号：US20100062340A1

公开(公告)日：2010-03-11

申请号：US12090925

申请日：2006-11-07

Applicant: Hitohiko IDE

Inventor： Hitohiko IDE

IPC: H01M4/58 ,  H01M4/04 ,  C25D5/00 ,  C25D7/00

CPC classification number: H01M4/139 ,  H01M4/0438 ,  H01M4/13 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/622 ,  H01M10/052 ,  H01M2004/027

Abstract: A negative electrode 10 for nonaqueous secondary batteries has an active material layer 12 containing active material particles 12a and having a metallic material 13 having low capability of forming a lithium compound deposited between the particles 12a by electroplating. The surface of the active material layer 12 is coated continuously or discontinuously with a surface layer 14 having an average thickness of 0.25 μm or less and made of a metallic material that is the same as or different from the metallic material 13. The particles 12a inside the active material layer 12 are preferably coated with the metallic material 13 while leaving voids between the particles 12a coated with the metallic material 13. The average thickness of the metallic material 13 coating the particles 12a is preferably 0.05 to 2 μm.

Abstract translation: 非水系二次电池用负极10具有活性物质层12，该活性物质层12含有活性物质粒子12a，具有通过电镀形成沉积在粒子12a之间的形成锂化合物的能力低的金属材料13。 活性物质层12的表面与平均厚度为0.25μm以下的表面层14连续地或不连续地涂布，并且由与金属材料13相同或不同的金属材料制成。内部的颗粒12a 活性物质层12优选涂覆有金属材料13，同时在涂覆有金属材料13的颗粒12a之间留下空隙。涂覆颗粒12a的金属材料13的平均厚度优选为0.05至2μm。

公开(公告)号：US20090191463A1

公开(公告)日：2009-07-30

申请号：US12306990

申请日：2007-04-18

Applicant: Hitohiko Ide ,  Akihiro Modeki ,  Hideaki Matsushima ,  Daisuke Mukai ,  Kiyotaka Yasuda

Inventor： Hitohiko Ide ,  Akihiro Modeki ,  Hideaki Matsushima ,  Daisuke Mukai ,  Kiyotaka Yasuda

IPC: H01M4/58 ,  H01M4/29

CPC classification number: H01M4/134 ,  C25D5/18 ,  C25D5/34 ,  C25D7/00 ,  H01M4/0452 ,  H01M4/29 ,  H01M4/366 ,  H01M4/38 ,  H01M10/052 ,  H01M10/0525

Abstract: A negative electrode 10 for a nonaqueous secondary battery has an active material layer 12 containing active material particles 12a. The particles 12a are coated at least partially with a coat of a metallic material 13 having low capability of lithium compound formation. The active material layer 12 has voids formed between the metallic material-coated particles 12a. When the active material layer 12 is imaginarily divided into equal halves in its thickness direction, the amount of the metallic material 13 is smaller in the half closer to the negative electrode surface than in the other half farther from the negative electrode surface. The weight ratio of [the particles/the metallic material] in the half closer to the negative electrode surface is preferably higher than that in the other half farther from the negative electrode surface.

Abstract translation: 非水系二次电池用负极10具有含有活性物质粒子12a的活性物质层12。 颗粒12a至少部分地涂覆有具有低的锂化合物形成能力的金属材料13。 活性物质层12在金属材料涂覆颗粒12a之间形成空隙。 当活性物质层12被想象成在其厚度方向上被分成相等的一半时，金属材料13的量比靠近负电极表面的另一半更靠近负电极表面的一半较小。 更靠近负极表面的一半中的[颗粒/金属材料]的重量比优选高于离负极表面更远的另一半的重量比。