-
公开(公告)号：US08747800B2
公开(公告)日：2014-06-10
申请号：US12096122
申请日：2006-12-05
申请人： Akinori Sudoh , Masataka Takeuchi
发明人： Akinori Sudoh , Masataka Takeuchi
IPC分类号： C01B31/04
CPC分类号： H01M4/587 , C01B32/20 , H01M10/0525 , Y10T428/2982
摘要： A carbon raw material such as a green coke in which loss on heat when it is heated from 300 to 1200° C. under an inert atmosphere is no less than 5% by mass and no more than 20% by mass is pulverized and then the pulverized carbon raw material is graphitized to obtain a graphite material suitable for a carbon material for anode in a lithium-ion secondary battery or the like that enables to make electrodes having a high-energy density and a large-current load characteristic since it has a small specific surface area and a small average particle diameter while maintaining high beginning efficiency and a high discharge capacity in the first round of charging and discharging. And an electrode for batteries are obtained using the graphite material.
摘要翻译： 在惰性气氛下将其从300℃加热到1200℃时的热损失为碳原料，例如不小于5质量％，不超过20质量％的碳原料如粉煤， 粉碎碳原料被石墨化以获得适于锂离子二次电池等中的用于阳极的碳材料的石墨材料，其能够制造具有高能量密度和大电流负载特性的电极，因为它具有 小的比表面积和小的平均粒径，同时在第一轮充电和放电中保持高的起始效率和高的放电容量。 并且使用石墨材料获得电池用电极。
-
2.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：US08685362B2
公开(公告)日：2014-04-01
申请号：US13180608
申请日：2011-07-12
申请人： Masataka Takeuchi , Chiaki Sotowa
发明人： Masataka Takeuchi , Chiaki Sotowa
IPC分类号： D01F9/12
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。
-
3.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：US20110269016A1
公开(公告)日：2011-11-03
申请号：US13180608
申请日：2011-07-12
申请人： Masataka TAKEUCHI , Chiaki Sotowa
发明人： Masataka TAKEUCHI , Chiaki Sotowa
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。
-
公开(公告)号：US20110266495A2
公开(公告)日：2011-11-03
申请号：US12867414
申请日：2009-02-24
IPC分类号： H01M4/583
CPC分类号： H01M4/131 , H01B1/20 , H01M4/02 , H01M4/136 , H01M4/1393 , H01M4/1397 , H01M4/366 , H01M4/485 , H01M4/5825 , H01M4/623 , H01M4/625 , H01M10/052 , H01M2004/021 , H01M2004/028
摘要： The invention relates to a composite electrode material consisting of a carbon coated complex oxide, fibrous carbon and a binder. Said material is prepared by a method which comprises co-grinding an active electrode material and fibrous carbon, and adding a binder to the co-grinded mixture to lower the viscosity of the mixture. The fibrous carbon is preferably vapor grown carbon fibers.
-
5.发明申请NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING CARBON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY AND USE THEREOF 有权用于锂二次电池的负极电极，用于生产碳基负极电极活性材料的方法，锂二次电池及其用途公开(公告)号：US20110236767A1
公开(公告)日：2011-09-29
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： H01M4/583 , H01M4/1393 , F27D7/00 , B02C23/08 , H01M10/056
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。
-
公开(公告)号：US20110193014A1
公开(公告)日：2011-08-11
申请号：US13089588
申请日：2011-04-19
CPC分类号： H01M4/0433 , H01M4/133 , H01M4/587 , H01M4/621 , H01M4/622 , H01M4/661 , H01M2004/021 , Y10T29/49108 , Y10T29/49115
摘要： The present invention relates to a negative electrode material for a lithium battery comprising a carbonaceous negative electrode active substance having a specific surface area of 1 m2/g or more, a binder formed of styrene-butadiene rubber and a carbon fiber having a fiber diameter of 1 to 1,000 nm; and to a lithium battery using the negative electrode material, which has excellent characteristics, i.e., low electrode resistance, high electrode strength, excellent electrolytic solution permeability, high energy density, and good high-speed charging/discharging performance. The negative electrode material contains carbon fiber in the amount of 0.05 to 20 mass % and the binder formed of styrene-butadiene rubber in 0.1 to 6.0 mass %, and may further contain a thickener such as carboxymethyl cellulose in the amount of 0.3 to 3 mass %.
摘要翻译： 本发明涉及锂电池用负极材料，其包含比表面积为1m 2 / g以上的碳质负极活性物质，由苯乙烯 - 丁二烯橡胶和纤维直径为 1〜1000nm; 并且使用具有优异的特性，即低电极电阻，高电极强度，优异的电解液渗透性，高能量密度和良好的高速充电/放电性能的负极材料的锂电池。 负极材料含有0.05〜20质量％的碳纤维和0.1〜6.0质量％的苯乙烯 - 丁二烯橡胶形成的粘合剂，还可以含有0.3〜3质量％的羧甲基纤维素等增稠剂 ％。
-
公开(公告)号：US07635527B2
公开(公告)日：2009-12-22
申请号：US12026854
申请日：2008-02-06
申请人： Masataka Takeuchi , Shuichi Naijo , Naoko Ito , Koro Shirane , Takeshi Igarashi , Yoshiaki Takahashi , Motoaki Kamachi
发明人： Masataka Takeuchi , Shuichi Naijo , Naoko Ito , Koro Shirane , Takeshi Igarashi , Yoshiaki Takahashi , Motoaki Kamachi
CPC分类号： H01L51/004 , C08G2261/1526 , H01L51/0085 , H01L51/5016 , Y10S428/917
摘要： A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.
摘要翻译： 一种聚合物发光材料，其中所述材料具有基于从激发的三线态转变为基态的发光机制，或者通过激发三线态转换到电子能级的基态，并且所述材料包括非离子光 构成聚合物的一部分或与聚合物结合的发光部分。 聚合物发光材料的发光效率高于5％，这是荧光的外部量子效率的极限，并且可以被设计成具有大的面积，因此适合于批量生产有机发光器件。
-
公开(公告)号：US20090242849A1
公开(公告)日：2009-10-01
申请号：US12096122
申请日：2006-12-05
申请人： Akinori Sudoh , Masataka Takeuchi
发明人： Akinori Sudoh , Masataka Takeuchi
CPC分类号： H01M4/587 , C01B32/20 , H01M10/0525 , Y10T428/2982
摘要： A carbon raw material such as a green coke in which loss on heat when it is heated from 300 to 1200° C. under an inert atmosphere is no less than 5% by mass and no more than 20% by mass is pulverized and then the pulverized carbon raw material is graphitized to obtain a graphite material suitable for a carbon material for anode in a lithium-ion secondary battery or the like that enables to make electrodes having a high-energy density and a large-current load characteristic since it has a small specific surface area and a small average particle diameter while maintaining high beginning efficiency and a high discharge capacity in the first round of charging and discharging. And an electrode for batteries are obtained using the graphite material.
摘要翻译： 在惰性气氛下将其从300℃加热到1200℃时的热损失为碳原料，例如不小于5质量％，不超过20质量％的碳原料如粉煤， 粉碎碳原料被石墨化以获得适于锂离子二次电池等中的用于阳极的碳材料的石墨材料，其能够制造具有高能量密度和大电流负载特性的电极，因为它具有 小的比表面积和小的平均粒径，同时在第一轮充电和放电中保持高的起始效率和高的放电容量。 并且使用石墨材料获得电池用电极。
-
公开(公告)号：US20070048612A1
公开(公告)日：2007-03-01
申请号：US11497275
申请日：2006-08-02
CPC分类号： C22C32/0084 , B22F2009/041 , B22F2009/048 , B22F2998/10 , H01M4/02 , H01M4/134 , H01M4/38 , H01M4/386 , H01M4/387 , H01M4/405 , H01M10/052 , H01M2004/021 , B22F9/08 , B22F9/04 , B22F1/0059 , B22F3/18 , B22F3/227
摘要： At least two metallic materials containing element such as silicon and tin, which has ability of insertion and desertion of lithium element, and optionally another metallic material containing element such as copper are molten to prepare a melt. The melt is rapidly cooled by strip-cast method at a cooling rate of more than 2×103 ° C./sec and no more than 104 ° C./sec to be cast. Further, the cast is milled and classified into alloy powder having an average particle size of 0.1 μm to 50 μm. The alloy powder and conductive agent are laminated with binder onto a collector to obtain a negative electrode for a secondary battery. The negative electrode is employed to obtain a lithium secondary battery having high electric charge and discharge capacity, and good property of charge and discharge cycle.
摘要翻译： 至少含有两种含有诸如硅和锡的元素的金属材料，其具有锂元素的插入和脱除能力，以及任选的另外的含金属材料的元素如铜的熔融，以制备熔体。 熔体通过流延法以大于2×10 3℃/秒的冷却速率快速冷却，并且不超过10℃/秒至/秒 被演员 此外，将铸件研磨并分级为平均粒径为0.1μm至50μm的合金粉末。 将合金粉末和导电剂与粘合剂层叠在集电体上，得到二次电池用负极。 使用负极来获得具有高的充电和放电容量的锂二次电池，并且具有良好的充放电循环性能。
-
公开(公告)号：US20060188784A1
公开(公告)日：2006-08-24
申请号：US10565302
申请日：2004-07-27
申请人： Akinori Sudoh , Masataka Takeuchi
发明人： Akinori Sudoh , Masataka Takeuchi
摘要： The invention relates to a high-density electrode, comprising an electrode active substance and carbon fiber having a filament diameter of 1 to 1,000 nm, wherein the porosity of the electrode is 25% or less. According to the invention, electrolytic solution permeability and electrolytic solution retainability, which are matters of importance in realizing a high-density electrode for achieving a battery having a high energy density, can be improved.
摘要翻译： 本发明涉及一种高密度电极，其包含电极活性物质和长丝直径为1〜1000nm的碳纤维，其中电极的孔隙率为25％以下。 根据本发明，可以提高在实现用于实现具有高能量密度的电池的高密度电极中重要的电解液渗透性和电解液保持性。
-
-
-
-
-
-
-
-
-
搜索结果
57 条记录 (耗时 0.027 秒)
