公开(公告)号：US20140166928A1

公开(公告)日：2014-06-19

申请号：US14185931

申请日：2014-02-21

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Michio OHKUBO ,  Takeshi YAGI ,  Michihiro SHIMADA ,  Naoki UNO ,  Yosuke HIRAYAMA ,  Takeshi NISHIMURA ,  Toshio TANI

IPC: C01B33/32

CPC classification number: C01B33/32 ,  B82Y30/00 ,  C01B33/12 ,  C01B33/18 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/62 ,  C01P2004/64 ,  H01M4/5825 ,  H01M10/052 ,  Y02T10/7011

Abstract: A particulate mixture etc., which can be used as a precursor of lithium transition metal silicate-type compound of small particle size and low crystallinity, is provided. Further, a cathode active material that can undergo charge-and-discharge reaction in room temperature, and comprises lithium transition metal silicate-type compound, is provided.It is a mixture of silicon oxide particulates, transition metal oxide particulates, and lithium transition metal silicate particulates, and its powder X-ray diffraction measurement shows diffraction peaks near 2θ=33.1° and near 2θ=35.7°, and said silicon oxide particulates and said transition metal oxide particulates are amorphous, and said lithium transition metal silicate particulates are in a microcrystalline or amorphous state. Furthermore, a cathode active material obtained by grinding the active material aggregate obtained by heat-treating this particulate mixture is provided.

Abstract translation: 提供了可用作小粒径和低结晶度的锂过渡金属硅酸盐型化合物的前体的颗粒状混合物等。 此外，提供了可以在室温下进行充放电反应并且包含锂过渡金属硅酸盐型化合物的正极活性物质。 它是氧化硅颗粒，过渡金属氧化物颗粒和锂过渡金属硅酸盐颗粒的混合物，其粉末X射线衍射测量显示在2附近的衍射峰= 33.1°和接近2θ= 35.7°，并且所述氧化硅 微粒和所述过渡金属氧化物颗粒是无定形的，并且所述锂过渡金属硅酸盐颗粒是微晶态或非晶状态。 此外，提供通过研磨通过热处理该颗粒混合物而获得的活性物质聚集体获得的阴极活性材料。

公开(公告)号：US20140346697A1

公开(公告)日：2014-11-27

申请号：US14454714

申请日：2014-08-07

Applicant: FURUKAWA ELECTRIC CO., LTD. ,  NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Hiroaki RIKIHISA ,  Masato TACHIBANA ,  Michihiro SHIMADA ,  Kinji ASAKA ,  Ken MUKAI ,  Takushi SUGINO

IPC: H01B1/24 ,  D01F9/12 ,  D01D10/06 ,  C01B31/02 ,  D01D5/06

CPC classification number: H01B1/24 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/168 ,  C01B32/174 ,  C01B2202/22 ,  C01B2202/28 ,  D01D5/06 ,  D01D10/06 ,  D01F9/12 ,  D10B2401/16 ,  H01B1/04 ,  Y10S977/742 ,  Y10S977/842 ,  Y10S977/932 ,  Y10T428/2918

Abstract: A method for producing an aggregated thread structure includes (a) a process of dispersing carbon nanotube to a first solvent, which is water or a mixed solvent containing organic solvent and water, with a surfactant, to create a dispersion and (b) a process of injecting the dispersion, in which carbon nanotube is dispersed, to a condensing liquid, which is a second solvent that differs from the first solvent, to thereby aggregate and spin carbon nanotube. The aggregated thread structure containing carbon nanotube has: a bulk density of 0.5 g/cm3 or more; a weight reduction rate up to 450° C. of 50% or less; a G/D ratio for resonance Raman scattering measurement of 10 or more; and an electric conductivity of 50 S/cm or more.

Abstract translation: 一种聚集螺纹结构体的制造方法，其特征在于，包括（a）将碳纳米管分散在作为水或含有有机溶剂和水的混合溶剂的第一溶剂与表面活性剂的工序，形成分散液，（b） 将其中分散有碳纳米管的分散体注入到与第一溶剂不同的第二溶剂的冷凝液，从而聚集和旋转碳纳米管。 含有碳纳米管的聚集螺纹结构体积为0.5g / cm 3以上; 450℃以下的重量减轻率为50％以下; 共振拉曼散射测定的G / D比为10以上; 电导率为50S / cm以上。

公开(公告)号：US20130316238A1

公开(公告)日：2013-11-28

申请号：US13889817

申请日：2013-05-08

Applicant: FURUKAWA ELECTRIC CO., LTD. ,  THE FURUKAWA BATTERY CO., LTD

Inventor： Takeshi NISHIMURA ,  Toshio TANI ,  Michihiro SHIMADA ,  Masaaki KUBOTA ,  Hidetoshi ABE ,  Takashi EGURO

IPC: H01M4/36

CPC classification number: H01M4/36 ,  B22F1/0018 ,  B22F1/025 ,  B22F9/04 ,  B22F9/14 ,  B82Y30/00 ,  C22C1/05 ,  C22C5/06 ,  C22C9/00 ,  C22C9/02 ,  C22C9/10 ,  C22C13/00 ,  C22C19/007 ,  C22C19/07 ,  C22C21/003 ,  C22C21/02 ,  H01M4/134 ,  H01M4/364 ,  H01M4/38 ,  H01M4/386 ,  H01M4/42 ,  H01M10/0525

Abstract: A nanosized particle has a first phase that is a simple substance or a solid solution of element A, which is Si, Sn, Al, Pb, Sb, Bi, Ge, In or Zn, and a second phase that is a compound of element D, which is Fe, Co, Ni, Ca, Sc, Ti, V, Cr, Mn, Sr, Y, Zr, Nb, Mo, Ru, Rh, Ba, lanthanoid elements (not including Ce and Pm), Hf, Ta, W or Ir, and element A, or a compound of element A and element M, which is Cu, Ag, or Au. The first phase and second phase are bound via an interface, and are exposed to the outer surface. The surface of the first phase other than the interface is approximately spherical. Furthermore, a lithium ion secondary battery includes the nanosized particle as an anode active material.

Abstract translation: 纳米尺寸颗粒具有作为Si，Sn，Al，Pb，Sb，Bi，Ge，In或Zn的元素A的单一物质或固溶体的第一相，作为元素的化合物的第二相 D，其中Fe，Co，Ni，Ca，Sc，Ti，V，Cr，Mn，Sr，Y，Zr，Nb，Mo，Ru，Rh，Ba，镧系元素（不包括Ce和Pm） Ta，W或Ir，以及元素A，或元素A和元素M的化合物，其为Cu，Ag或Au。 第一相和第二相通过界面结合，并暴露于外表面。 第一相的界面以外的表面近似为球形。 此外，锂离子二次电池包括作为负极活性物质的纳米尺寸粒子。

公开(公告)号：US20130251619A1

公开(公告)日：2013-09-26

申请号：US13897951

申请日：2013-05-20

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY ,  FURUKAWA ELECTRIC CO., LTD.

Inventor： Hiroaki RIKIHISA ,  Masato TACHIBANA ,  Michihiro SHIMADA ,  Kinji ASAKA ,  Ken MUKAI ,  Takushi SUGINO

IPC: H01B1/04

CPC classification number: H01B1/24 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/168 ,  C01B32/174 ,  C01B2202/22 ,  C01B2202/28 ,  D01D5/06 ,  D01D10/06 ,  D01F9/12 ,  D10B2401/16 ,  H01B1/04 ,  Y10S977/742 ,  Y10S977/842 ,  Y10S977/932 ,  Y10T428/2918

Abstract: A method for producing an aggregated thread structure includes (a) a process of dispersing carbon nanotube to a first solvent, which is water or a mixed solvent containing organic solvent and water, with a surfactant, to create a dispersion and (b) a process of injecting the dispersion, in which carbon nanotube is dispersed, to a condensing liquid, which is a second solvent that differs from the first solvent, to thereby aggregate and spin carbon nanotube. The aggregated thread structure containing carbon nanotube has: a bulk density of 0.5 g/cm3 or more; a weight reduction rate up to 450° C. of 50% or less; a G/D ratio for resonance Raman scattering measurement of 10 or more; and an electric conductivity of 50 S/cm or more.

Abstract translation: 一种聚集螺纹结构体的制造方法，其特征在于，包括（a）将碳纳米管分散在作为水或含有有机溶剂和水的混合溶剂的第一溶剂与表面活性剂的工序，形成分散液，（b） 将其中分散有碳纳米管的分散体注入到与第一溶剂不同的第二溶剂的冷凝液，从而聚集和旋转碳纳米管。 含有碳纳米管的聚集螺纹结构体积为0.5g / cm 3以上; 450℃以下的重量减轻率为50％以下; 共振拉曼散射测定的G / D比为10以上; 电导率为50S / cm以上。