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    • 12. 发明公开
    • METHOD FOR PRODUCING POROUS GRAPHITE, AND POROUS GRAPHITE
    • VERFAHREN ZUR HERSTELLUNG VONPORÖSEMGRAPHIT UNDPORÖSERGRAPHIT
    • EP3192773A4
    • 2017-07-19
    • EP15839941
    • 2015-09-04
    • TOHOKU TECHNO ARCH CO LTDTPR IND CO LTD
    • KATO HIDEMIYU SEUNG-GEUNWADA TAKESHI
    • C01B32/20C01B32/336C01B32/348
    • C01B31/08C01B31/04C01B32/20C01B32/336C01B32/348C01P2002/74C01P2004/02C01P2004/04C01P2006/12C01P2006/14C01P2006/16C01P2006/40H01M4/587H01M4/663H01M4/8807
    • Provided is a method for producing porous graphite capable of realizing higher durability, output and capacity, and porous graphite. A carbon member 13 having microvoids is obtained by a dealloying step for selectively eluting other non-carbon main components into a metal bath 12 by immersing a carbon-containing material 11, composed of a compound containing carbon or an alloy or non-equilibrium alloy, in the metal bath 12, wherein the metal bath 12 has a solidifying point lower than the melting point of the carbon-containing material 11, and is controlled to a temperature lower than the minimum value of a liquidus temperature within a composition fluctuation range extending from the carbon-containing material 11 to carbon by reducing the other non-carbon main components. The carbon member 13 obtained in the dealloying step is graphitized by heating in a graphitization step. The carbon member graphitized in the graphitization step is subjected to activation treatment by an activation step.
    • 提供一种能够实现更高的耐久性,输出量和容量的多孔石墨以及多孔石墨的方法。 具有微孔的碳构件13通过脱金属工序获得,用于通过浸渍由含碳或合金或非平衡合金的化合物构成的含碳材料11,选择性地将其它非碳主成分洗脱到金属浴12中, 在金属浴12中,金属浴12具有比含碳材料11的熔点低的凝固点,并且被控制为低于液相线温度的最小值的温度,所述液相线温度的最小值在从 通过还原其他非碳主要组分来将含碳材料11还原为碳。 在脱金属工序中得到的碳构件13在石墨化工序中通过加热进行石墨化。 在石墨化步骤中石墨化的碳成分通过活化步骤进行活化处理。
    • 13. 发明公开
    • CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODE OF NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    • KOHLENSTOFFHALTIGES材料FÜRNEGATIVELEKTRODE EINERSEKUNDÄRBATTERIEMIT WASSERFREIEM ELEKTROLYTEN
    • EP3179541A4
    • 2017-06-14
    • EP15829774
    • 2015-08-10
    • KUREHA CORP
    • SONOBE NAOHIROSHIMIZU KAZUHIKO
    • H01M4/587H01M4/36
    • H01M4/587C01B31/02C01P2002/72C01P2002/74C01P2004/61C01P2006/10C01P2006/12C01P2006/40H01M4/133H01M4/623H01M4/625H01M4/661H01M10/0525H01M2004/021H01M2004/027H01M2220/20
    • An object of the present invention is to provide a non-aqueous electrolyte secondary battery which has a large charge/discharge capacity, has a small irreversible capacity, and is capable of effectively using an active material. This object can be achieved by a material for a non-aqueous electrolyte secondary battery anode; a specific surface area determined by a BET method being not greater than 30 m 2 /g; an atomic ratio (H/C) of hydrogen atoms to carbon atoms determined by elemental analysis being not greater than 0.1; an average particle size being not greater than 50 µm; and a diffraction intensity ratio (R-value) determined by Equation (1) being not greater than 1.25: (wherein I max is a maximum value of a 002 diffraction intensity of carbon measured at an angle of diffraction (2¸) within a range of from 20 to 25° as determined by powder X-ray diffraction measured using CuK± rays; I min is a minimum value of a diffraction intensity measured at an angle of diffraction (2¸) within a range of from 15 to 20° as determined by powder X-ray diffraction; and I 35 is a diffraction intensity at an angle of diffraction (2¸) of 35° as determined by powder X-ray diffraction).
    • 本发明的目的在于提供一种充放电容量大,不可逆容量小,能够有效使用活性物质的非水电解质二次电池。 该目的可以通过用于非水电解质二次电池负极的材料来实现; 通过BET法测定的比表面积不大于30m 2 / g; 通过元素分析测定的氢原子与碳原子的原子比(H / C)不大于0.1; 平均粒径不大于50μm; 和由式(1)确定的衍射强度比(R值)不大于1.25:(其中I max是在衍射角(2°)下测量的碳的002衍射强度的最大值在范围 通过使用CuK +射线测量的粉末X射线衍射测定,为20至25°; I min为在15至20°范围内在衍射角(2°)下测量的衍射强度的最小值,与 由粉末X射线衍射测定; I 35是通过粉末X射线衍射测定的衍射角(2°)为35°时的衍射强度)。
    • 14. 发明公开
    • CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODE OF NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    • 非水电解质二次电池负极用含碳材料
    • EP3179541A1
    • 2017-06-14
    • EP15829774.7
    • 2015-08-10
    • Kureha Corporation
    • SONOBE NaohiroSHIMIZU Kazuhiko
    • H01M4/587H01M4/36
    • H01M4/587C01B32/05C01P2002/72C01P2002/74C01P2004/61C01P2006/10C01P2006/12C01P2006/40H01M4/133H01M4/623H01M4/625H01M4/661H01M10/0525H01M2004/021H01M2004/027H01M2220/20
    • An object of the present invention is to provide a non-aqueous electrolyte secondary battery which has a large charge/discharge capacity, has a small irreversible capacity, and is capable of effectively using an active material. This object can be achieved by a material for a non-aqueous electrolyte secondary battery anode; a specific surface area determined by a BET method being not greater than 30 m 2 /g; an atomic ratio (H/C) of hydrogen atoms to carbon atoms determined by elemental analysis being not greater than 0.1; an average particle size being not greater than 50 µm; and a diffraction intensity ratio (R-value) determined by Equation (1) being not greater than 1.25: (wherein I max is a maximum value of a 002 diffraction intensity of carbon measured at an angle of diffraction (2θ) within a range of from 20 to 25° as determined by powder X-ray diffraction measured using CuKα rays; I min is a minimum value of a diffraction intensity measured at an angle of diffraction (2θ) within a range of from 15 to 20° as determined by powder X-ray diffraction; and I 35 is a diffraction intensity at an angle of diffraction (2θ) of 35° as determined by powder X-ray diffraction).
    • 本发明的目的在于提供一种充放电容量大,不可逆容量小,能够有效使用活性物质的非水电解质二次电池。 该目的可以通过用于非水电解质二次电池负极的材料来实现; 通过BET法测定的比表面积不大于30m 2 / g; 通过元素分析测定的氢原子与碳原子的原子比(H / C)不大于0.1; 平均粒径不大于50μm; 和由式(1)确定的衍射强度比(R值)不大于1.25:(其中Imax是在衍射角(2θ)处测量的碳的002衍射强度的最大值, 通过使用CuKα射线测量的粉末X射线衍射测定的20至25°; Imin是通过粉末X射线衍射测定的衍射角(2θ)在15至20°范围内测量的衍射强度的最小值, X-射线衍射;并且I35是通过粉末X射线衍射测定的衍射角(2θ)为35°时的衍射强度)。