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    Negative electrode for lithium secondary battery, method for producing carbon-based negative electrode active material, lithium secondary battery and use thereof
    12.
    发明授权
    Negative electrode for lithium secondary battery, method for producing carbon-based negative electrode active material, lithium secondary battery and use thereof 有权
    锂二次电池用负极，碳系负极活性物质的制造方法，锂二次电池及其用途

    公开(公告)号：US08841029B2

    公开(公告)日：2014-09-23

    申请号：US12673455

    申请日：2008-08-08

    申请人： Chiaki Sotowa ,  Akinori Sudoh ,  Masataka Takeuchi

    发明人： Chiaki Sotowa ,  Akinori Sudoh ,  Masataka Takeuchi

    IPC分类号： H01M4/58 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/04 ,  H01M4/587 ,  H01M4/02

    CPC分类号： H01M4/133 ,  H01M4/0471 ,  H01M4/1393 ,  H01M4/587 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49108

    摘要： Disclosed are a negative electrode for lithium secondary batteries, containing an active material (A) capable of absorbing/desorbing lithium ions and a binder (B), wherein the active material (A) is a carbon-based material obtained from at least one starting material selected from a group consisting of petroleum cokes and coal cokes and having a mean particle size of from 1 to 30 and a true density of from 1.90 to 2.00 g/cm3 and its use; and a method for producing a carbon-based negative electrode active material having a mean particle size of from 1 to 30 μm and a true density of from 1.90 to 2.00 g/cm3, the method comprising (a) a step of grinding at least one selected from a group consisting of petroleum cokes and coal cokes, (b) a step of controlling the particle size, and (c) a step of heat-treating in an inert gas atmosphere at 900 to 1900° C.

    摘要翻译： 公开了含有能够吸收/解吸锂离子的活性物质（A）和粘合剂（B）的锂二次电池用负极，其中活性物质（A）为从至少一个起始物 选自石油焦炭和煤焦炭，平均粒度为1〜30，真密度为1.90〜2.00g / cm3的材料及其用途; 以及平均粒径为1〜30μm，真密度为1.90〜2.00g / cm 3的碳系负极活性物质的制造方法，其特征在于，包括：（a）将至少一种 选自由石油焦炭和煤焦炭组成的组，（b）控制粒径的步骤，（c）在惰性气体气氛中在900〜1900℃进行热处理的工序。

    Composite graphite particles and lithium rechargeable battery using the same
    13.
    发明授权
    Composite graphite particles and lithium rechargeable battery using the same 有权
    复合石墨颗粒和锂可充电电池使用相同

    公开(公告)号：US08999580B2

    公开(公告)日：2015-04-07

    申请号：US12097001

    申请日：2006-12-20

    申请人： Chiaki Sotowa ,  Masataka Takeuchi

    发明人： Chiaki Sotowa ,  Masataka Takeuchi

    IPC分类号： H01M4/13 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0569 ,  H01M4/02

    CPC分类号： H01M10/0525 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0569 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T428/2991

    摘要： The invention provides composite graphite particles, comprising a core material consisting of graphite having a interlayer distance d(002) of 0.337 nm or less and a surface layer consisting of graphite in which the intensity ratio ID/IG (R value) between the peak intensities (ID) in a range of 1300 to 1400 cm−1 and ( IG) in a range of 1580 to 1620 cm−1 as measured by Raman scattering spectroscopy is 0.3 or higher, wherein the peak intensity ratio I110/I004 between the peak intensities (I110)of face (110) and (I004)of face (004) obtained by XRD measurement on the graphite crystal is 0.15 or higher when the graphite has been mixed with a binder and pressure-molded to a density of 1.55 to 1.65 g/cm3, which composite graphite particles are useful in a secondary battery negative electrode having a high capacity, high charge/discharge characteristics and an excellent charging property, and also provides a paste for negative electrode, a negative electrode and a lithium secondary battery using the composite graphite.

    摘要翻译： 本发明提供复合石墨颗粒，其包含由石墨构成的芯材，其中层间距离d（002）为0.337nm或更小，以及由石墨组成的表面层，其中峰强度之间的强度比ID / IG（R值） 通过拉曼散射光谱法测定的范围为1300〜1400cm -1的范围（（IG））为1580〜1620cm -1的范围（IG）为0.3以上，峰强度之间的峰强度比I110 / I004 当将石墨与粘合剂混合并加压成型为1.55至1.65克的密度时，在石墨晶体上通过XRD测量获得的面（004）的面（110）和（I004）的（I110）为0.15以上 / cm3，该复合石墨颗粒可用于具有高容量，高充电/放电特性和优异的充电特性的二次电池负极中，并且还提供负极，负极和锂二次电池用糊料 使用复合石墨。

    Method for producing anode for lithium secondary battery and anode composition, and lithium secondary battery
    14.
    发明授权
    Method for producing anode for lithium secondary battery and anode composition, and lithium secondary battery 有权
    锂二次电池阳极和阳极组合物的制造方法以及锂二次电池

    公开(公告)号：US08003257B2

    公开(公告)日：2011-08-23

    申请号：US11994520

    申请日：2006-07-03

    申请人： Masataka Takeuchi ,  Chiaki Sotowa

    发明人： Masataka Takeuchi ,  Chiaki Sotowa

    IPC分类号： H01M4/58

    CPC分类号： H01M4/133 ,  H01M4/0433 ,  H01M4/139 ,  H01M4/364 ,  H01M4/587 ,  H01M4/62 ,  H01M4/621 ,  H01M4/661 ,  H01M10/0569 ,  H01M2004/021 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T428/2971

    摘要： The invention relates to an anode for lithium secondary battery comprising vapor grown carbon fiber uniformly dispersed without forming an agglomerate of 10 μm or larger in an anode active material using natural graphite or artificial graphite, which anode is excellent in long cycle life and large current characteristics. Composition used for production for the anode can be produced, for example, by mixing a thickening agent solution containing an anode active material, a thickening agent aqueous solution and styrene butadiene rubber as binder with a composition containing carbon fiber dispersed in a thickening agent with a predetermined viscosity or by mixing an anode active material with vapor grown carbon fiber in dry state and then adding polyvinylidene difluoride thereto.

    摘要翻译： 本发明涉及一种锂二次电池用阳极，其包括使用天然石墨或人造石墨在阳极活性物质中形成均匀分散的气相生长碳纤维，而阳极活性物质的长周期性优异，电流特性大 。 用于阳极生产的组合物可以例如通过将含有负极活性物质，增稠剂水溶液和丁苯橡胶作为粘合剂的增稠剂溶液与分散在增稠剂中的含碳纤维的组合物混合， 通过将阳极活性材料与干燥状态下的气相生长碳纤维混合，然后向其中加入聚偏二氟乙烯。

    METHOD FOR PRODUCING ANODE FOR LITHIUM SECONDARY BATTERY AND ANODE COMPOSITION, AND LITHIUM SECONDARY BATTERY
    15.
    发明申请
    METHOD FOR PRODUCING ANODE FOR LITHIUM SECONDARY BATTERY AND ANODE COMPOSITION, AND LITHIUM SECONDARY BATTERY 有权
    生产锂二次电池和阳极组合物的阳极的方法和锂二次电池

    公开(公告)号：US20090123850A1

    公开(公告)日：2009-05-14

    申请号：US11994520

    申请日：2006-07-03

    申请人： Masataka Takeuchi ,  Chiaki Sotowa

    发明人： Masataka Takeuchi ,  Chiaki Sotowa

    IPC分类号： H01M6/16 ,  H01M4/24 ,  D02G3/02

    CPC分类号： H01M4/133 ,  H01M4/0433 ,  H01M4/139 ,  H01M4/364 ,  H01M4/587 ,  H01M4/62 ,  H01M4/621 ,  H01M4/661 ,  H01M10/0569 ,  H01M2004/021 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T428/2971

    摘要： The invention relates to an anode for lithium secondary battery comprising vapor grown carbon fiber uniformly dispersed without forming an agglomerate of 10 μm or larger in an anode active material using natural graphite or artificial graphite, which anode is excellent in long cycle life and large current characteristics. Composition used for production for the anode can be produced, for example, by mixing a thickening agent solution containing an anode active material, a thickening agent aqueous solution and styrene butadiene rubber as binder with a composition containing carbon fiber dispersed in a thickening agent with a predetermined viscosity or by mixing an anode active material with vapor grown carbon fiber in dry state and then adding polyvinylidene difluoride thereto.

    摘要翻译： 本发明涉及一种锂二次电池的阳极，其包括使用天然石墨或人造石墨在阳极活性材料中形成均匀分散的气相生长碳纤维而不形成10um以上的聚集体，该阳极具有优异的循环寿命和大的电流特性 。 用于阳极生产的组合物可以例如通过将含有负极活性物质，增稠剂水溶液和丁苯橡胶作为粘合剂的增稠剂溶液与分散在增稠剂中的含碳纤维的组合物混合， 通过将阳极活性材料与干燥状态下的气相生长碳纤维混合，然后向其中加入聚偏二氟乙烯。

    Carbon material for battery electrode and production method and use thereof
    16.
    发明申请
    Carbon material for battery electrode and production method and use thereof 审中-公开
    电池用电极用碳材料及其制造方法及其应用

    公开(公告)号：US20070092428A1

    公开(公告)日：2007-04-26

    申请号：US10577849

    申请日：2004-10-29

    申请人： Chiaki Sotowa ,  Masataka Takeuchi ,  Akinori Sudoh

    发明人： Chiaki Sotowa ,  Masataka Takeuchi ,  Akinori Sudoh

    IPC分类号： H01M4/58

    CPC分类号： H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525

    摘要： The invention provides a carbon material for a battery electrode, which comprises a carbon powder material as a composite of carbonaceous particles and an a carbon material derived from an organic compound prepared by allowing the organic compound serving as a polymer source material to deposit onto and/or permeate into the carbonaceous particles to thereby polymerize the polymer material and then heating at 1,800 to 3,300° C., and which has an intensity ratio of 0.1 or more for peak intensity attributed to a (110) plane to peak intensity attributed to a (004) plane determined through X-ray diffraction spectroscopic analysis on a mixture of the carbon material and a binder resin when pressed at 103 kg/cm2 or higher. The carbon material which undergoes less deformation/orientation due to application of pressure, has high discharge capacity and small irreversible capacity and exhibiting excellent coulombic efficiency, cycle characteristics and leakage-current load characteristics.

    摘要翻译： 本发明提供了一种用于电池电极的碳材料，其包括作为碳质颗粒的复合材料的碳粉末材料和通过使用作为聚合物源材料的有机化合物沉积到和/ 或渗透到碳质颗粒中，从而使聚合物材料聚合，然后在1,800至3300℃下加热，并且对于归因于（110）面的峰强度与归因于（110）面的峰强度而言，其强度比为0.1以上， 004）面在通过X射线衍射光谱分析法测定的情况下，当以10 3 / kg 2/2以上的压力时，对碳材料和粘合剂树脂的混合物进行测定。 由于施加压力而变形/取向较少的碳材料具有高的放电容量和小的不可逆容量，并表现出优异的库仑效率，循环特性和漏电流负载特性。

    COMPOSITE GRAPHITE PARTICLES AND LITHIUM RECHARGEABLE BATTERY USING THE SAME
    20.
    发明申请
    COMPOSITE GRAPHITE PARTICLES AND LITHIUM RECHARGEABLE BATTERY USING THE SAME 有权
    使用相同的复合石墨颗粒和锂可充电电池

    公开(公告)号：US20090202917A1

    公开(公告)日：2009-08-13

    申请号：US12097001

    申请日：2006-12-20

    申请人： Chiaki Sotowa ,  Masataka Takeuchi

    发明人： Chiaki Sotowa ,  Masataka Takeuchi

    IPC分类号： H01M6/18 ,  H01M4/58 ,  H01M6/16 ,  C08F6/00 ,  B32B1/00

    CPC分类号： H01M10/0525 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0569 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T428/2991

    摘要： The invention provides composite graphite particles, comprising a core material consisting of graphite having a interlayer distance d(002) of 0.337 nm or less and a surface layer consisting of graphite in which the intensity ratio ID/IG (R value) between the peak intensities (ID) in a range of 1300 to 1400 cm−1 and ( IG) in a range of 1580 to 1620 cm−1 as measured by Raman scattering spectroscopy is 0.3 or higher, wherein the peak intensity ratio I110/I004 between the peak intensities (I110)of face (110) and (I004)of face (004) obtained by XRD measurement on the graphite crystal is 0.15 or higher when the graphite has been mixed with a binder and pressure-molded to a density of 1.55 to 1.65 g/cm3, which composite graphite particles are useful in a secondary battery negative electrode having a high capacity, high charge/discharge characteristics and an excellent charging property, and also provides a paste for negative electrode, a negative electrode and a lithium secondary battery using the composite graphite.

    摘要翻译： 本发明提供复合石墨颗粒，其包含由石墨构成的芯材，其中层间距离d（002）为0.337nm或更小，以及由石墨组成的表面层，其中峰强度之间的强度比ID / IG（R值） 通过拉曼散射光谱法测定的范围为1300〜1400cm -1的范围（（IG））为1580〜1620cm -1的范围（IG）为0.3以上，峰强度之间的峰强度比I110 / I004 当将石墨与粘合剂混合并加压成型为1.55至1.65克的密度时，在石墨晶体上通过XRD测量获得的面（004）的面（110）和（I004）的（I110）为0.15以上 / cm3，该复合石墨颗粒可用于具有高容量，高充电/放电特性和优异的充电性能的二次电池负极中，并且还提供负极，负极和锂二次电池用途的糊 g复合石墨。