公开(公告)号：US08501047B2

公开(公告)日：2013-08-06

申请号：US13006693

申请日：2011-01-14

申请人： Hiroshi Yamamoto ,  Tatsuo Nagata ,  Tooru Fujiwara

发明人： Hiroshi Yamamoto ,  Tatsuo Nagata ,  Tooru Fujiwara

IPC分类号： H01B1/02

CPC分类号： H01M4/587 ,  C01B32/20 ,  H01M4/133 ,  H01M10/0525

摘要： A negative electrode material provided by the present invention capable of suppressing a decrease in charge acceptance and high temperature storage properties in an electrode with a high capacity and a high density is a mixed carbon material comprising carbon material A having cores of graphite powder with amorphous carbon and/or turbostratic carbon adhered to or coated on the surface of the cores and carbon material B which is graphite powder, the compressibility which is the density (g/cm3) of the material when 1.00 grams of the material are packed into a cylindrical mold with an inner diameter of 15 mm and compressed by applying a pressing force of 8.7 kN and reducing the pressing force to 0.15 kN is 1.60-1.78 g/cm3 for carbon material A and 1.75-1.85 g/cm3 for carbon material B, the compressibility of carbon material A is less than the compressibility of carbon material B, and the mixing ratio (carbon material A/carbon material B) is 1-9 as a mass ratio.

摘要翻译： 本发明提供的能够抑制具有高容量和高密度的电极中的电荷接受性和高温保存性降低的负极材料是包含碳材料A的混合碳材料，所述碳材料A具有具有无定形碳的石墨粉末的芯 和/或渗透碳附着在或涂覆在芯的表面上，并且作为石墨粉末的碳材料B，当将1.00克材料包装到圆柱形模具中时，该材料的密度（g / cm 3）的可压缩性 通过施加8.7kN的压力并将压力降低至0.15kN而压缩的碳素材料A为1.60-1.78g / cm 3，碳材料B为1.75-1.85g / cm 3，压缩率 碳材料A的比例小于碳材料B的压缩率，混合比（碳材料A /碳材料B）的质量比为1-9。

公开(公告)号：US20130130117A1

公开(公告)日：2013-05-23

申请号：US13638250

申请日：2011-03-28

申请人： Hiroshi Yamamoto ,  Tatsuo Nagata ,  Katsuhiro Nishihara ,  Noriyuki Negi ,  Akihiro Yauchi ,  Tooru Fujiwara

发明人： Hiroshi Yamamoto ,  Tatsuo Nagata ,  Katsuhiro Nishihara ,  Noriyuki Negi ,  Akihiro Yauchi ,  Tooru Fujiwara

IPC分类号： H01M4/133 ,  C01B31/04 ,  H01M4/04 ,  H01M4/1393

CPC分类号： H01M4/133 ,  C01B32/20 ,  C01P2006/10 ,  C01P2006/11 ,  C01P2006/19 ,  H01M4/0402 ,  H01M4/1393 ,  H01M4/587

摘要： Modified natural graphite particles intended for forming a negative electrode material for a nonaqueous electrolyte secondary battery are characterized by having a circularity of at least 0.93 and at most 1.0 and a surface roughness of at most 1.5% with respect to the length of the particles. These modified natural graphite particles are obtained by a manufacturing method including a step of applying an impact force to natural graphite particles for pulverization and spheroidization to obtain intermediate particles having a circularity of at least 0.93 and at most 1.0, and a step of carrying out surface smoothing of the resulting intermediate particles by mechanical grinding treatment to obtain the modified natural graphite particles.

摘要翻译： 用于形成非水电解质二次电池用负极材料的改性天然石墨粒子的特征在于，相对于粒子的长度，其圆形度为至少0.93，最多为1.0，表面粗糙度为1.5％以下。 这些改性天然石墨颗粒通过包括以下步骤获得的制造方法，该方法包括对用于粉碎和球化的天然石墨颗粒施加冲击力以获得圆形度为至少0.93至多1.0的中间颗粒的步骤，以及执行表面 通过机械研磨处理使得到的中间粒子平滑化，得到改性天然石墨粒子。

公开(公告)号：US08404385B2

公开(公告)日：2013-03-26

申请号：US13247433

申请日：2011-09-28

申请人： Hiroshi Yamamoto ,  Tatsuo Nagata ,  Tooru Fujiwara

发明人： Hiroshi Yamamoto ,  Tatsuo Nagata ,  Tooru Fujiwara

IPC分类号： H01M4/583 ,  C01B31/04 ,  H01B1/04

CPC分类号： H01M4/587 ,  C01B32/05 ,  C01B32/20 ,  H01M4/131 ,  H01M4/1393 ,  H01M4/364 ,  H01M10/0525

摘要： The present invention provides a mixed carbon material which comprises carbon material A and carbon material B and which is a carbon material suitable for a negative electrode material which can provide a nonaqueous secondary battery having a low irreversible capacity and having a negative electrode with a high capacity and high charge acceptance. Carbon material A and carbon material B both have cores made of graphite powder and a surface carbon material in the form of at least one of amorphous carbon and turbostratic carbon adhered to or coated on at least a portion of the surface of the graphite powder. The compressed density is 1.80-1.90 g/cm3 for carbon material A alone, 1.45-1.65 g/cm3 for carbon material B alone, and 1.75-1.84 g/cm3 for the mixed carbon material.

摘要翻译： 本发明提供一种混合碳材料，其包含碳材料A和碳材料B，并且其是适用于能够提供具有低不可逆容量的非水二次电池并具有高容量的负极的负极材料的碳材料 和高充电接受度。 碳材料A和碳材料B都具有由石墨粉末形成的芯和表面碳材料，其形式为至少一种无定形碳和涡电子碳，其粘附或涂覆在石墨粉末的至少一部分表面上。 对于单独的碳材料A，压缩密度为1.80-1.90g / cm 3，单独碳材料B的压缩密度为1.45-1.65g / cm 3，混合碳材料的压缩密度为1.75-1.84g / cm 3。

公开(公告)号：US20090196816A1

公开(公告)日：2009-08-06

申请号：US12068437

申请日：2008-02-06

申请人： Hiroshi Yamamoto ,  Tooru Fujiwara

发明人： Hiroshi Yamamoto ,  Tooru Fujiwara

IPC分类号： C01B31/00

CPC分类号： H01M4/587 ,  C01B32/05 ,  C01B32/20

摘要： Carbon powder having low temperature calcined carbon derived from pitch adhered to a portion of the surface of natural graphite powder is obtained by solids mixing of natural graphite powder and pitch powder as a carbon precursor followed by heat treatment at 900-1500° C. to carbonize the pitch. The amount of pitch powder is such that the ratio V2/V1 of the pore volume V2 of pores having a diameter of 50-200 nm to the pore volume V1 of pores having a diameter of 2-50 nm in a pore size distribution curve obtained by analysis of the nitrogen desorption isotherm of the resulting carbon powder by the BJH method is at least 1. This carbon powder can be used as a negative electrode material for a nonaqueous secondary battery able to operate at low temperatures.

摘要翻译： 通过将天然石墨粉末和作为碳前体的沥青粉末固体混合，然后在900-1500℃进行热处理以碳化，得到具有由附着在天然石墨粉末的表面部分上的沥青衍生的低温煅烧碳的碳粉末 球场。 间距粉末的量使得在获得的孔径分布曲线中，直径为50-200nm的孔的孔体积V2与直径为2-50nm的孔的孔体积V1的比V2 / V1 通过用BJH法分析得到的碳粉末的氮解吸等温线为至少1.该碳粉末可以用作能够在低温下操作的非水二次电池的负极材料。

公开(公告)号：US08394530B2

公开(公告)日：2013-03-12

申请号：US12458914

申请日：2009-07-28

申请人： Tooru Fujiwara ,  Hiroshi Yamamoto

发明人： Tooru Fujiwara ,  Hiroshi Yamamoto

IPC分类号： H01M4/02 ,  H01M4/58

CPC分类号： H01M10/4235 ,  C01B32/05 ,  C01P2004/61 ,  C01P2006/12 ,  H01M4/02 ,  H01M4/362 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021

摘要： A carbon material suitable as a negative electrode material for a lithium ion battery which can suppress decomposition of a nonaqueous electrolytic solution, which has excellent compressibility capable of highly dense packing, and which can form an electrode of high capacity without worsening charge and discharge efficiency or cycling performance. Graphite powder A having an average particle diameter of 10-30 μm and a specific surface area S1 of at most 12.5 m2/g and pitch powder B having a softening point of 80-180° C. and an average particle diameter of 15-150 μm are mixed in proportions such that the mass ratio A/B is 98/2-95.5/4.5, and the resulting mixed powder is subjected to heat treatment in a stationary condition in an inert atmosphere at 900-1100° C. to carbonize the pitch and thereby manufacture a carbon material having carbon adhered to the surface of the above-described graphite powder. Carbon preferentially adheres to the edge planes of the graphite particles. The carbon material has a specific surface area S2 of 1.0-5.0 m2/g, and it satisfies 0.4≦S2/S1≦0.8.

摘要翻译： 适合作为锂离子电池用负极材料的碳材料，能够抑制能够高密度填充的压缩性优异的非水电解液的分解，能够形成高容量的电极而不会使充放电效率恶化， 自行车表演。 石墨粉末A的平均粒径为10〜30μm，比表面积S1为12.5m2 / g以下，沥青粉末B的软化点为80〜180℃，平均粒径为15〜150 以使质量比A / B为98 / 2-95.5 / 4.5的比例混合，并将所得混合粉末在惰性气氛中在900-1100℃下在静止条件下进行热处理以使 从而制造具有粘附到上述石墨粉末的表面上的碳的碳材料。 碳优先粘附在石墨颗粒的边缘平面上。 碳材料的比表面积S2为1.0-5.0m2 / g，满足0.4＆nlE; S2 / S1＆nlE; 0.8。

公开(公告)号：US20100035149A1

公开(公告)日：2010-02-11

申请号：US12458914

申请日：2009-07-28

申请人： Tooru Fujiwara ,  Hiroshi Yamamoto

发明人： Tooru Fujiwara ,  Hiroshi Yamamoto

IPC分类号： H01M4/133 ,  C01B31/04 ,  H01M4/88

CPC分类号： H01M10/4235 ,  C01B32/05 ,  C01P2004/61 ,  C01P2006/12 ,  H01M4/02 ,  H01M4/362 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021

摘要： A carbon material suitable as a negative electrode material for a lithium ion battery which can suppress decomposition of a nonaqueous electrolytic solution, which has excellent compressibility capable of highly dense packing, and which can form an electrode of high capacity without worsening charge and discharge efficiency or cycling performance. Graphite powder A having an average particle diameter of 10-30 μm and a specific surface area S1 of at most 12.5 m2/g and pitch powder B having a softening point of 80-180° C. and an average particle diameter of 15-150 μm are mixed in proportions such that the mass ratio A/B is 98/2-95.5/4.5, and the resulting mixed powder is subjected to heat treatment in a stationary condition in an inert atmosphere at 900-1100° C. to carbonize the pitch and thereby manufacture a carbon material having carbon adhered to the surface of the above-described graphite powder. Carbon preferentially adheres to the edge planes of the graphite particles. The carbon material has a specific surface area S2 of 1.0-5.0 m2/g, and it satisfies 0.4≦S2/S1≦0.8.

摘要翻译： 适合作为锂离子电池用负极材料的碳材料，能够抑制能够高密度填充的压缩性优异的非水电解液的分解，能够形成高容量的电极而不会使充放电效率恶化， 自行车表演。 石墨粉末A的平均粒径为10〜30μm，比表面积S1为12.5m2 / g以下，沥青粉B的软化点为80〜180℃，平均粒径为15〜150 以比例A / B为98 / 2-95.5 / 4.5的比例进行混合，将得到的混合粉末在惰性气氛中在900-1100℃下在静止状态下进行热处理，使碳酸化 从而制造具有粘附到上述石墨粉末的表面上的碳的碳材料。 碳优先粘附在石墨颗粒的边缘平面上。 碳材料的比表面积S2为1.0〜5.0m2 / g，满足0.4≤S2/S1≤0.8。

公开(公告)号：US20120251888A1

公开(公告)日：2012-10-04

申请号：US13247433

申请日：2011-09-28

申请人： Hiroshi Yamamoto ,  Tatsuo Nagata ,  Tooru Fujiwara

发明人： Hiroshi Yamamoto ,  Tatsuo Nagata ,  Tooru Fujiwara

IPC分类号： H01M4/583

CPC分类号： H01M4/587 ,  C01B32/05 ,  C01B32/20 ,  H01M4/131 ,  H01M4/1393 ,  H01M4/364 ,  H01M10/0525

摘要： The present invention provides a mixed carbon material which comprises carbon material A and carbon material B and which is a carbon material suitable for a negative electrode material which can provide a nonaqueous secondary battery having a low irreversible capacity and having a negative electrode with a high capacity and high charge acceptance. Carbon material A and carbon material B both have cores made of graphite powder and a surface carbon material in the form of at least one of amorphous carbon and turbostratic carbon adhered to or coated on at least a portion of the surface of the graphite powder. The compressed density is 1.80-1.90 g/cm3 for carbon material A alone, 1.45-1.65 g/cm3 for carbon material B alone, and 1.75-1.84 g/cm3 for the mixed carbon material.

摘要翻译： 本发明提供一种混合碳材料，其包含碳材料A和碳材料B，并且其是适用于能够提供具有低不可逆容量的非水二次电池并具有高容量的负极的负极材料的碳材料 和高充电接受度。 碳材料A和碳材料B都具有由石墨粉末形成的芯和表面碳材料，其形式为至少一种无定形碳和涡电子碳，其粘附或涂覆在石墨粉末的至少一部分表面上。 对于单独的碳材料A，压缩密度为1.80-1.90g / cm 3，单独碳材料B的压缩密度为1.45-1.65g / cm 3，混合碳材料的压缩密度为1.75-1.84g / cm 3。

公开(公告)号：US08038977B2

公开(公告)日：2011-10-18

申请号：US12068437

申请日：2008-02-06

申请人： Hiroshi Yamamoto ,  Tooru Fujiwara

发明人： Hiroshi Yamamoto ,  Tooru Fujiwara

IPC分类号： C01B31/04

CPC分类号： H01M4/587 ,  C01B32/05 ,  C01B32/20

摘要： Carbon powder having low temperature calcined carbon derived from pitch adhered to a portion of the surface of natural graphite powder is obtained by solids mixing of natural graphite powder and pitch powder as a carbon precursor followed by heat treatment at 900-1500° C. to carbonize the pitch. The amount of pitch powder is such that the ratio V2/V1 of the pore volume V2 of pores having a diameter of 50-200 nm to the pore volume V1 of pores having a diameter of 2-50 nm in a pore size distribution curve obtained by analysis of the nitrogen desorption isotherm of the resulting carbon powder by the BJH method is at least 1. This carbon powder can be used as a negative electrode material for a nonaqueous secondary battery able to operate at low temperatures.

摘要翻译： 通过将天然石墨粉末和作为碳前体的沥青粉末固体混合，然后在900-1500℃进行热处理以碳化，得到具有由附着在天然石墨粉末的表面部分上的沥青衍生的低温煅烧碳的碳粉末 球场。 间距粉末的量使得在获得的孔径分布曲线中，直径为50-200nm的孔的孔体积V2与直径为2-50nm的孔的孔体积V1的比V2 / V1 通过用BJH法分析得到的碳粉末的氮解吸等温线为至少1.该碳粉末可以用作能够在低温下操作的非水二次电池的负极材料。

公开(公告)号：US20140093781A1

公开(公告)日：2014-04-03

申请号：US14110240

申请日：2012-04-03

申请人： Katsuhiro Nishihara ,  Hiroshi Yamamoto ,  Tatsuo Nagata ,  Noriyuki Negi ,  Tooru Fujiwara

发明人： Katsuhiro Nishihara ,  Hiroshi Yamamoto ,  Tatsuo Nagata ,  Noriyuki Negi ,  Tooru Fujiwara

IPC分类号： H01M4/587

CPC分类号： H01M4/587 ,  C01B32/20 ,  C01P2006/10 ,  C01P2006/11 ,  C01P2006/19 ,  H01M4/133 ,  H01M4/366 ,  H01M10/052

摘要： A modified natural graphite material which provides a negative plate having improved adhesion between a negative electrode mixture and a current collector has a circularity of at least 0.92 and at most 1.0 and an incident angle dependence S60/0 of the peak intensity ratio of at least 0.5 and at most 0.7 as determined by measurement of C K-edge X-ray absorption spectra using synchrotron radiation as an excitation source. It preferably satisfies at least one of the following conditions: an absolute specific gravity of at least 2.25 (g/cm3), a tap density of at least 1.0 g/cm3 and at most 1.4 g/cm3, and linseed oil absorption of at least 20 cm3/100 g and at most 50 cm3/100 g. A carbonaceous material may adhere to at least a portion of the surface of the graphite particles.

摘要翻译： 提供具有改善的负极混合物和集电体之间粘附性的负极板的改性天然石墨材料具有至少0.92至多1.0的圆形度，峰强度比的入射角依赖性S60 / 0至少为0.5 并且通过使用同步加速器辐射作为激发源的C K边缘X射线吸收光谱的测量来确定最多为0.7。 它优选满足以下条件中的至少一个：绝对比重至少为2.25（g / cm 3），振实密度为至少1.0g / cm 3和至多1.4g / cm 3，并且亚麻籽油吸收至少 20cm 3 / 100g和至多50cm 3 / 100g。 碳质材料可以粘附到石墨颗粒的表面的至少一部分上。

公开(公告)号：US09568151B2

公开(公告)日：2017-02-14

申请号：US13990436

申请日：2011-09-01

申请人： Hiroshi Yamamoto

发明人： Hiroshi Yamamoto

IPC分类号： F17C13/06 ,  F23K5/02 ,  F23K5/14

CPC分类号： F17C13/06 ,  F16K11/076 ,  F16K11/0856 ,  F23D14/28 ,  F23K5/02 ,  F23K5/147 ,  F23K2301/206 ,  F23N1/027

摘要： A fuel valve includes a cylindrical flow adjusting member having a cylindrical surface formed with two circumferentially extending V-shaped grooves for liquid fuel and air, respectively. The fuel valve further includes liquid fuel and air supply pipes having O-rings at their respective discharge ports which are kept in abutment with the cylindrical surface such that when the flow rate adjusting member is rotated to a position where the V-shaped grooves extend across and protrude from the respective O-rings, the discharge ports of the supply pipes communicate with the respective V-shaped grooves, so that liquid fuel and air flow. The depths, widths and positions of the respective V-shaped grooves are determined corresponding to an igniting position (preheating step), normal burning positions (high heat to low heat), and a discharge position such that the flow rates of liquid fuel and air can be adjusted in synchronization with each other.

摘要翻译： 燃料阀包括圆柱形流动调节构件，其具有分别形成有用于液体燃料和空气的两个周向延伸的V形槽的圆柱形表面。 燃料阀还包括液体燃料和空气供应管，它们在它们各自的排放口处具有O形环，它们保持与圆柱形表面邻接，使得当流量调节构件旋转到V形槽延伸穿过的位置时 并且从各O形环突出，供给管的排出口与各V字槽连通，液体燃料和空气流动。 根据点火位置（预热步骤），正常燃烧位置（高热到低热）和排出位置来确定各个V形槽的深度，宽度和位置，使得液体燃料和空气的流量 可以相互同步调整。