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：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：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。