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公开(公告)号：US20110123858A1
公开(公告)日：2011-05-26
申请号：US13003851
申请日：2009-07-24
IPC分类号： H01M10/052 , B32B9/00 , B05D3/02 , H01M4/02 , H01M4/04
CPC分类号： H01M4/625 , C01D15/02 , H01M4/0404 , H01M4/0471 , H01M4/1397 , H01M4/362 , H01M4/366 , H01M4/5825 , H01M4/623 , Y02E60/122 , Y10T428/292
摘要： The invention relates to a composite material comprising carbon fibers and complex oxide particles, wherein the carbon fibers and the complex oxide particles have a carbon coating on at least part of their surface, said carbon coating being a non powdery coating The material is prepared by a method comprising mixing a complex oxide or precursors thereof, an organic carbon precursor and carbon fibers, and subjecting the mixture to a heat treatment in an inert or reducing atmosphere for the decomposition of the precursors The material is useful as the cathode material in a battery
摘要翻译： 本发明涉及包含碳纤维和复合氧化物颗粒的复合材料，其中碳纤维和复合氧化物颗粒在其表面的至少一部分上具有碳涂层，所述碳涂层是非粉末涂层。该材料由 方法，包括混合复合氧化物或其前体，有机碳前体和碳纤维，并将混合物在惰性或还原气氛中进行热处理以分解前体。该材料可用作电池中的阴极材料
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公开(公告)号：US20070275302A1
公开(公告)日：2007-11-29
申请号：US10585205
申请日：2004-12-28
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 characterized by 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 thickner such as carboxymethyl cellulose in the amount of 0.3 to 3 mass %.
摘要翻译： 本发明涉及一种锂电池用负极材料，其特征在于，具有比表面积为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的碳纤维; 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 ％。
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13.发明申请公开(公告)号：US20070202410A1
公开(公告)日：2007-08-30
申请号：US11660280
申请日：2005-08-12
申请人： Masataka Takeuchi , Chiaki Sotowa
发明人： Masataka Takeuchi , Chiaki Sotowa
CPC分类号： H01M4/625 , H01M4/131 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M4/505 , H01M4/525 , H01M10/052 , H01M2004/021 , H01M2010/4292 , Y02E60/122
摘要： The present invention relates to a lithium battery positive electrode comprising an active substance that can occlude and release lithium ion, a carbon-based conductivity enhancer, and a binder, characterized in that the positive electrode contains the carbon-based conductivity enhancer in an amount of 0.1 to 2 mass % on the basis of the entire mass of the positive electrode, and that the carbon-based conductivity enhancer contains a carbon fiber having a mean fiber diameter of 1 to 200 nm, wherein the active substance that can occlude and release lithium ion is contained in an amount, as calculated from the true density of the active substance, of 70% by volume or more on the basis of the total volume of the positive electrode; and relates to a lithium battery using the a lithium battery positive electrode. The positive electrode obtained by the present invention has an excellent electrolyte permeability and electrolyte retention. Therefore, it is better adapted to high-density lithium battery.
摘要翻译： 本发明涉及一种锂电池正极，其包含可以吸留和释放锂离子的活性物质，碳系导电性增强剂和粘合剂，其特征在于，所述正极含有碳系导电性增强剂 基于整个正极的质量为0.1〜2质量％，碳基导电性增强剂含有平均纤维直径为1〜200nm的碳纤维，其中可以吸留和释放锂的活性物质 根据活性物质的真实密度计算出的离子的含量为70体积％以上，基于正极的总体积; 涉及使用锂电池正极的锂电池。 通过本发明获得的正极具有优异的电解质渗透性和电解质保留性。 因此，它更适合高密度锂电池。
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14.发明授权公开(公告)号：US09531008B2
公开(公告)日：2016-12-27
申请号：US11660280
申请日：2005-08-12
申请人： Masataka Takeuchi , Chiaki Sotowa
发明人： Masataka Takeuchi , Chiaki Sotowa
IPC分类号： H01M4/62 , H01M4/58 , H01M4/48 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/052 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M4/02 , H01M10/42
CPC分类号： H01M4/625 , H01M4/131 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M4/505 , H01M4/525 , H01M10/052 , H01M2004/021 , H01M2010/4292 , Y02E60/122
摘要： The present invention relates to a lithium battery positive electrode comprising an active substance that can occlude and release lithium ion, a carbon-based conductivity enhancer, and a binder, characterized in that the positive electrode contains the carbon-based conductivity enhancer in an amount of 0.1 to 2 mass % on the basis of the entire mass of the positive electrode, and that the carbon-based conductivity enhancer contains a carbon fiber having a mean fiber diameter of 1 to 200 nm, wherein the active substance that can occlude and release lithium ion is contained in an amount, as calculated from the true density of the active substance, of 70% by volume or more on the basis of the total volume of the positive electrode; and relates to a lithium battery using the a lithium battery positive electrode.The positive electrode obtained by the present invention has an excellent electrolyte permeability and electrolyte retention. Therefore, it is better adapted to high-density lithium battery.
摘要翻译： 通过本发明获得的正极具有优异的电解质渗透性和电解质保留性。 因此，它更适合高密度锂电池。
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15.发明授权公开(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。
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公开(公告)号：US08388922B2
公开(公告)日：2013-03-05
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 ％。
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17.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。
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18.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
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。
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公开(公告)号：US09240596B2
公开(公告)日：2016-01-19
申请号：US13003851
申请日：2009-07-24
CPC分类号： H01M4/625 , C01D15/02 , H01M4/0404 , H01M4/0471 , H01M4/1397 , H01M4/362 , H01M4/366 , H01M4/5825 , H01M4/623 , Y02E60/122 , Y10T428/292
摘要： The invention relates to a composite material comprising carbon fibers and complex oxide particles, wherein the carbon fibers and the complex oxide particles have a carbon coating on at least part of their surface, said carbon coating being a non powdery coating The material is prepared by a method comprising mixing a complex oxide or precursors thereof, an organic carbon precursor and carbon fibers, and subjecting the mixture to a heat treatment in an inert or reducing atmosphere for the decomposition of the precursors The material is useful as the cathode material in a battery.
摘要翻译： 本发明涉及包含碳纤维和复合氧化物颗粒的复合材料，其中碳纤维和复合氧化物颗粒在其表面的至少一部分上具有碳涂层，所述碳涂层是非粉末涂层。该材料由 方法包括混合复合氧化物或其前体，有机碳前体和碳纤维，以及使混合物在惰性或还原气氛中进行热处理以分解前体。该材料可用作电池中的阴极材料。
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公开(公告)号：US20110068294A1
公开(公告)日：2011-03-24
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.
摘要翻译： 本发明涉及由碳涂复合氧化物，纤维状碳和粘结剂组成的复合电极材料。 所述材料通过包括共同研磨活性电极材料和纤维状碳的方法以及向共磨碎的混合物中加入粘合剂以降低混合物的粘度的方法制备。 纤维状碳优选为气相生长碳纤维。
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