公开(公告)号：US07659033B2

公开(公告)日：2010-02-09

申请号：US11686204

申请日：2007-03-14

申请人： Koji Moriguchi ,  Mitsuhara Yonemura ,  Kazuhito Kamei ,  Masaru Abe ,  Hideya Kaminaka ,  Noriyuki Negi ,  Atsuo Omaru ,  Masayuki Nagamine

发明人： Koji Moriguchi ,  Mitsuhara Yonemura ,  Kazuhito Kamei ,  Masaru Abe ,  Hideya Kaminaka ,  Noriyuki Negi ,  Atsuo Omaru ,  Masayuki Nagamine

IPC分类号： H01M4/58 ,  C01B31/04

CPC分类号： H01M10/0525 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2006/80 ,  H01M4/133 ,  H01M4/587 ,  H01M2004/021 ,  Y10T428/30

摘要： A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/μm and not more than 1500/μm, and with d002 being preferably not larger than 3.3650 Å, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C. for graphization and subsequently further heat-treating the graphized material at a temperature exceeding a temperature of the oxidating heat treatment and the heat treatment in the inert gas.

摘要翻译： 以更低的成本制造适合于确保高放电容量不低于320mAh / g的锂离子二次电池的负极材料的石墨粉末。 具体地说，在粉末表面上，在石墨c平面层的端部含有0.01〜5.0重量％的硼并且具有环状封闭结构的石墨粉末，相邻闭合结构之间的间隙平面部分的密度不是 小于100 /小时且不超过1500 / mum，d002优选不大于3.3650，通过以下方法制造：（1）在碳化之前或之后以高速粉碎的碳材料进行热处理，以在超过 或者（2）在碳化之前或之后粉碎的碳材料在超过1500℃的温度下进行热处理，以进行石墨化，随后在超过氧化热处理温度的温度下进一步热处理石墨化材料 并在惰性气体中进行热处理。

公开(公告)号：US20070154812A1

公开(公告)日：2007-07-05

申请号：US11686204

申请日：2007-03-14

申请人： Koji Moriguchi ,  Mitsuhara Yonemura ,  Kazuhito Kamei ,  Masaru Abe ,  Hideya Kaminaka ,  Noriyuki Negi ,  Atsuo Omaru ,  Masayuki Nagamine

发明人： Koji Moriguchi ,  Mitsuhara Yonemura ,  Kazuhito Kamei ,  Masaru Abe ,  Hideya Kaminaka ,  Noriyuki Negi ,  Atsuo Omaru ,  Masayuki Nagamine

IPC分类号： H01M4/58 ,  C01B31/04

CPC分类号： H01M10/0525 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2006/80 ,  H01M4/133 ,  H01M4/587 ,  H01M2004/021 ,  Y10T428/30

摘要： A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/μm and not more than 1500/μm, and with d002 being preferably not larger than 3.3650 Å, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C. forgraphization and subsequently firterheat-treating the graphized material at a temperature exceeding a temperature of the oxidating heat treatnent and the heat treatment in the inert gas.

摘要翻译： 以更低的成本制造适合于确保高放电容量不低于320mAh / g的锂离子二次电池的负极材料的石墨粉末。 具体地说，在粉末表面上，在石墨c平面层的端部含有0.01〜5.0重量％的硼并且具有环状封闭结构的石墨粉末，相邻闭合结构之间的间隙平面部分的密度不是 通过（1）在碳化之前或之后以高速粉碎的碳材料进行热处理，以在温度下进行石墨化，制造小于100 / mum且不大于1500 / mum，d 002优选不大于3.3650 超过1500℃，或者（2）在碳化之前或之后粉碎的碳材料在超过1500℃的温度下进行热处理，然后在超过氧化热处理温度的温度下对石墨化材料进行热处理， 惰性气体中的热处理。

公开(公告)号：US06764767B2

公开(公告)日：2004-07-20

申请号：US09292834

申请日：1999-04-16

申请人： Koji Moriguchi ,  Mitsuhara Yonemura ,  Kazuhito Kamei ,  Masaru Abe ,  Hideya Kaminaka ,  Noriyuki Negi ,  Atsuo Omaru ,  Masayuki Nagamine

发明人： Koji Moriguchi ,  Mitsuhara Yonemura ,  Kazuhito Kamei ,  Masaru Abe ,  Hideya Kaminaka ,  Noriyuki Negi ,  Atsuo Omaru ,  Masayuki Nagamine

IPC分类号： C01B3104

CPC分类号： H01M10/0525 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2006/80 ,  H01M4/133 ,  H01M4/587 ,  H01M2004/021 ,  Y10T428/30

摘要： A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/&mgr;m and not more than 1500/&mgr;m, and with d002 being preferably not larger than 3.3650 Å, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C. for graphization and subsequently further heat-treating the graphized material at a temperature exceeding a temperature of the oxidating heat treatment and the heat treatment in the inert gas.

摘要翻译： 以更低的成本制造适合于确保高放电容量不低于320mAh / g的锂离子二次电池的负极材料的石墨粉末。 具体地说，在粉末表面上，在石墨c平面层的端部含有0.01〜5.0重量％的硼并且具有环状封闭结构的石墨粉末，相邻闭合结构之间的间隙平面部分的密度不是 小于100 /小时且不超过1500 / mum，d002优选不大于3.3650，通过以下方法制造：（1）在碳化之前或之后以高速粉碎的碳材料进行热处理，以在超过 或者（2）在碳化之前或之后粉碎的碳材料在超过1500℃的温度下进行热处理，以进行石墨化，随后在超过氧化热处理温度的温度下进一步热处理石墨化材料 并在惰性气体中进行热处理。

公开(公告)号：US07214447B2

公开(公告)日：2007-05-08

申请号：US10826233

申请日：2004-04-16

申请人： Koji Moriguchi ,  Mitsuhara Yonemura ,  Kazuhito Kamei ,  Masaru Abe ,  Hideya Kaminaka ,  Noriyuki Negi ,  Atsuo Omaru ,  Masayuki Nagamine

发明人： Koji Moriguchi ,  Mitsuhara Yonemura ,  Kazuhito Kamei ,  Masaru Abe ,  Hideya Kaminaka ,  Noriyuki Negi ,  Atsuo Omaru ,  Masayuki Nagamine

IPC分类号： H01M4/58 ,  C01B31/04

CPC分类号： H01M10/0525 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2006/80 ,  H01M4/133 ,  H01M4/587 ,  H01M2004/021 ,  Y10T428/30

摘要： A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/μm and not more than 1500/μm, and with d002 being preferably not larger than 3.3650 Å, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C. forgraphization and subsequently further heat-treating the graphized material at a temperature exceeding a temperature of the oxidating heat treatment and the heat treatment in the inert gas.

摘要翻译： 要以更低的成本制造适合于确保高放电容量不低于320mAh / g的锂离子二次电池的负极材料的石墨粉末。 具体地说，在粉末表面上，在石墨c平面层的端部含有0.01〜5.0重量％的硼并且具有环状封闭结构的石墨粉末，相邻闭合结构之间的间隙平面部分的密度不是 通过（1）在碳化之前或之后以高速粉碎的碳材料进行热处理，以在温度下进行石墨化，制造小于100 / mum且不大于1500 / mum，d 002优选不大于3.3650 超过1500℃或通过（2）在碳化之前或之后粉碎的碳材料在超过1500℃的温度下进行热处理，进行热成像，然后在超过氧化热处理温度的温度下进一步热处理石墨化材料 并在惰性气体中进行热处理。

公开(公告)号：US20060134523A1

公开(公告)日：2006-06-22

申请号：US10826233

申请日：2004-04-16

申请人： Koji Moriguchi ,  Mitsuharu Yonemura ,  Kazuhito Kamei ,  Masaru Abe ,  Hideya Kaminaka ,  Noriyuki Negi ,  Atsuo Omaru ,  Masayuki Nagamine

发明人： Koji Moriguchi ,  Mitsuharu Yonemura ,  Kazuhito Kamei ,  Masaru Abe ,  Hideya Kaminaka ,  Noriyuki Negi ,  Atsuo Omaru ,  Masayuki Nagamine

IPC分类号： H01M4/58 ,  C01B31/04

CPC分类号： H01M10/0525 ,  C01B32/20 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2006/80 ,  H01M4/133 ,  H01M4/587 ,  H01M2004/021 ,  Y10T428/30

摘要： A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/μm and not more than 1500/μm, and with d002 being preferably not larger than 3.3650 Å, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C. forgraphization and subsequently further heat-treating the graphized material at a temperature exceeding a temperature of the oxidating heat treatment and the heat treatment in the inert gas.

摘要翻译： 以更低的成本制造适合于确保高放电容量不低于320mAh / g的锂离子二次电池的负极材料的石墨粉末。 具体地说，在粉末表面上，在石墨c平面层的端部含有0.01〜5.0重量％的硼并且具有环状封闭结构的石墨粉末，相邻闭合结构之间的间隙平面部分的密度不是 小于100 /小时且不超过1500 / mum，d002优选不大于3.3650，通过以下方法制造：（1）在碳化之前或之后以高速粉碎的碳材料进行热处理，以在超过 或者（2）在碳化之前或之后粉碎的碳材料在超过1500℃的温度下热处理，然后在超过氧化热处理温度的温度下进一步热处理石墨化材料， 惰性气体中的热处理。

公开(公告)号：US06576369B1

公开(公告)日：2003-06-10

申请号：US09138561

申请日：1998-08-24

申请人： Koji Moriguchi ,  Mitsuharu Yonemura ,  Kazuhito Kamei ,  Noriyuki Negi ,  Masaru Abe ,  Hideya Kaminaka

发明人： Koji Moriguchi ,  Mitsuharu Yonemura ,  Kazuhito Kamei ,  Noriyuki Negi ,  Masaru Abe ,  Hideya Kaminaka

IPC分类号： C01B3104

CPC分类号： H01M4/583 ,  C01B32/20 ,  C01P2002/60 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/133 ,  H01M4/622 ,  H01M4/623 ,  H01M6/10 ,  H01M10/0525

摘要： A graphite powder has surface closed-end structures in which the graphite c-plane layers of the graphite layer crystal lattices have closed-ends on the surface of the graphite powder by linking the ends of one or more pairs of the c-plane layers, leaving interstices which are open on the surface of the graphite. The number of open interstices is at least 100 and at most 1500 per micrometer in a c-axis direction of the graphite. Preferably, the graphite powder has a specific surface area of 1.0 m2/g or less. Such a graphite powder can be prepared either by graphitizing a carbon material, which has been pulverized at a high speed under well-controlled conditions before and/or after the carbonization, or by subjecting a carbon material, which has been pulverized under well-controlled conditions before and/or after the carbonization, to graphitization and then to oxidative heat treatment at a temperature of 600-800° C. and finally to heat treatment at a temperature of 800° C. or higher in an inert gas. The graphite powder can be used to produce negative electrodes of lithium ion secondary batteries having a high discharge capacity of at least 320 mAh/g and a high charge/discharge coulombic efficiency of at least 90%.

摘要翻译： 石墨粉末具有表面封闭端结构，其中石墨层晶格的石墨c面层通过连接一对或多对c面层的端部而在石墨粉末的表面上具有封闭端， 留下在石墨表面开放的间隙。 在石墨的c轴方向上，开口间隙的数量为至少100个，最高为1500微米。 优选石墨粉的比表面积为1.0m 2 / g以下。 这样的石墨粉末可以通过在碳化之前和/或之后在良好控制的条件下高速粉碎的碳材料进行石墨化，或者通过将被粉碎的碳材料进行良好控制 在碳化之前和/或之后的条件进行石墨化，然后在600-800℃的温度下进行氧化热处理，最后在惰性气体中在800℃以上的温度下进行热处理。 该石墨粉末可用于制造具有至少320mAh / g的高放电容量和高充放电库仑效率至少为90％的锂离子二次电池的负极。

公开(公告)号：US09783911B2

公开(公告)日：2017-10-10

申请号：US14410969

申请日：2013-07-15

申请人： Nobuyoshi Yashiro ,  Kazuhito Kamei ,  Kazuhiko Kusunoki ,  Nobuhiro Okada ,  Koji Moriguchi ,  Hironori Daikoku ,  Hidemitsu Sakamoto ,  Motohisa Kado

发明人： Nobuyoshi Yashiro ,  Kazuhito Kamei ,  Kazuhiko Kusunoki ,  Nobuhiro Okada ,  Koji Moriguchi ,  Hironori Daikoku ,  Hidemitsu Sakamoto ,  Motohisa Kado

IPC分类号： C30B19/02 ,  C30B15/10 ,  C30B19/04 ,  C30B19/06 ,  C30B29/36 ,  C30B15/32

CPC分类号： C30B15/10 ,  C30B15/32 ,  C30B19/04 ,  C30B19/067 ,  C30B29/36 ,  Y10T117/1032

摘要： A production apparatus is used for a solution growth method. The production apparatus includes a seed shaft and a crucible. The seed shaft has a lower end surface to which an SiC seed crystal is attached. The crucible contains an SiC solution. The crucible includes a cylindrical portion, a bottom portion, and an inner lid. The bottom portion is disposed at a lower end of the cylindrical portion. The inner lid is disposed in the cylindrical portion. The inner lid has a through hole and is positioned below a liquid surface of the SiC solution when the SiC solution is contained in the crucible.

公开(公告)号：US09631295B2

公开(公告)日：2017-04-25

申请号：US14006640

申请日：2011-07-27

申请人： Hironori Daikoku ,  Kazuhito Kamei

发明人： Hironori Daikoku ,  Kazuhito Kamei

IPC分类号： C30B15/22 ,  C30B29/36 ,  C30B19/04 ,  C30B19/06 ,  C30B19/12 ,  C30B17/00

CPC分类号： C30B15/22 ,  C30B17/00 ,  C30B19/04 ,  C30B19/061 ,  C30B19/12 ,  C30B29/36 ,  Y10T117/1032

摘要： Provided is a method for producing SiC single crystals while maintaining a temperature gradient such that the temperature decreases from within an Si solution inside a graphite crucible toward the solution surface, with the SiC seed crystals that have contacted the solution surface serving as the starting point for crystal seed growth, wherein when the crystal growth surface of the SiC seed crystals, which serves as the starting point for SiC single crystal growth, contacts the solution surface, the height by which the solution rises to the side of the SiC seed crystals is within the range where the SiC single crystals that have grown from the crystal growth surface and the SiC single crystals that have grown from the side grow as one SiC single crystal unit. Also provided is a device for producing an SiC single crystal comprising a graphite crucible, a heating device for heating and melting base materials in the crucible to form a base material solution and maintaining a temperature gradient required for growth of SiC single crystal, a support rod which holds a SiC seed crystal at its bottom end, and a holding structure which maintains the holding by the support rod so that a height by which the solution rises to the side of the SiC seed crystal is within a range where the SiC single crystal that have grown from the crystal growth surface and the SiC single crystal that have grown from the side grow as one SiC single crystal unit.

公开(公告)号：US09222198B2

公开(公告)日：2015-12-29

申请号：US13385566

申请日：2012-02-27

申请人： Kazuhiko Kusunoki ,  Kazuhito Kamei ,  Nobuyoshi Yashiro ,  Junichi Koike

发明人： Kazuhiko Kusunoki ,  Kazuhito Kamei ,  Nobuyoshi Yashiro ,  Junichi Koike

IPC分类号： C30B19/02 ,  H01L21/02 ,  H01L21/16 ,  C30B29/36 ,  C30B19/04 ,  C30B19/06

CPC分类号： C30B29/36 ,  C30B19/02 ,  C30B19/04 ,  C30B19/062 ,  Y10T428/21 ,  Y10T428/265

摘要： A SiC single crystal wafer on which a good quality epitaxial film by suppressing defects derived from the wafer can be grown has an affected surface layer with a thickness of at most 50 nm and a SiC single crystal portion with an oxygen content of at most 1.0×1017 atoms/cm3. This SiC single crystal wafer is manufactured from a high purity SiC bulk single crystal obtained by the solution growth method using raw materials with an oxygen content of at most 100 ppm and a non-oxidizing atmosphere having an oxygen concentration of at most 100 ppm.

摘要翻译： 通过抑制从晶片产生的缺陷可以生长出其质量良好的外延膜的SiC单晶晶片具有厚度至多为50nm的受影响的表面层和氧含量至多为1.0×x的SiC单晶部分 1017原子/ cm3。 该SiC单晶晶片由使用氧含量为100ppm以下的原料和氧浓度为100ppm以下的非氧化性气氛的溶液生长法得到的高纯度SiC体单晶制造。

公开(公告)号：US20130284083A1

公开(公告)日：2013-10-31

申请号：US13997722

申请日：2011-12-26

申请人： Nobuhiro Okada ,  Kazuhito Kamei ,  Kazuhiko Kasunoki ,  Nobuyoshi Yashiro ,  Kouji Moriguchi ,  Hironori Daikoku ,  Hiroshi Suzuki ,  Tomokazu Ishii ,  Hidemitsu Sakamoto ,  Motohisa Kado ,  Yoichiro Kawai

发明人： Nobuhiro Okada ,  Kazuhito Kamei ,  Kazuhiko Kasunoki ,  Nobuyoshi Yashiro ,  Kouji Moriguchi ,  Hironori Daikoku ,  Hiroshi Suzuki ,  Tomokazu Ishii ,  Hidemitsu Sakamoto ,  Motohisa Kado ,  Yoichiro Kawai

IPC分类号： C30B15/20 ,  C30B15/14 ,  C30B15/30

CPC分类号： C30B15/20 ,  C30B15/14 ,  C30B15/30 ,  C30B15/305 ,  C30B17/00 ,  C30B29/36 ,  Y10T117/1068

摘要： A manufacturing apparatus for SiC single crystal has a control unit to control induction heating such that frequency f (Hz) of alternating current to be passed to the induction heating unit satisfies Formula (1); D1 (mm) is permeation depth of electromagnetic waves into a side wall of a crucible by the heating unit, D2 (mm) is permeation depth of electromagnetic waves into a SiC solution, T (mm) is thickness of the crucible side wall of the crucible, and R (mm) is crucible inner radius: (D1−T)×D2/R>1  (1) where, D1 is defined by Formula (2), and D2 by Formula (3): D1=503292×(1/(f×σc×μc))1/2  (2) D2=503292×(1/(f×σs×μs))1/2  (3); σc is electric conductivity (S/m) of the sidewall, σs is electric conductivity (S/m) of the SiC solution; μc is relative permeability of the sidewall, and μs relative permeability of the SiC solution.

摘要翻译： SiC单晶的制造装置具有用于控制感应加热的控制单元，使得要传递到感应加热单元的交流电流的频率f（Hz）满足公式（1）; D1（mm）是电磁波通过加热单元进入坩埚侧壁的渗透深度，D2（mm）是电磁波向SiC溶液的渗透深度，T（mm）是坩埚侧壁的厚度 坩埚和R（mm）是坩埚内半径：（D1-T）×D2 / R> 1（1）其中，D1由式（2）定义，D2由式（3）定义：D1 = 503292×（ 1 /（f×sigmac×muc））1/2（2）D2 = 503292×（1 /（f×sigmas×mus））1/2（3） sigmac是侧壁的导电率（S / m），sigmas是SiC溶液的导电率（S / m）; 粘液是侧壁的相对渗透率，并且是SiC溶液的相对磁导率。