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    • 62. 发明申请
    • CARBON MATERIAL, MATERIAL FOR A BATTERY ELECTRODE, AND BATTERY
    • 碳材料,电池电极材料和电池
    • US20160185600A1
    • 2016-06-30
    • US14908281
    • 2014-07-28
    • SHOWA DENKO K.K.
    • Chiaki SOTOWATakashi TERASHIMAYasuaki WAKIZAKA
    • C01B31/02H01M4/587C01B31/04H01M4/1393
    • C01B32/05C01B32/20C01P2002/78C01P2002/82H01M4/587H01M2004/021
    • The present invention provides a carbon material and a material for a battery electrode which is suitable for use as an electrode material for an aqueous-electrolyte secondary battery, which material comprises optical structures having a specific shape, and in which material the ratio IG/ID (R value) between the peak intensity (ID) of a peak in a range of 1300 to 1400 cm−1 and the peak intensity (IG) of a peak in a range of 1580 to 1620 cm−1 measured by Raman spectroscopy spectra when particles of the carbon material are measured with Raman microspectrometer is 0.38 or more and 1.2 or less and the average interplanar spacing d002 of plane (002) by the X-ray diffraction method is 0.335 nm or more and 0.338 nm or less; and a secondary battery excellent in charge/discharge cycle characteristics and large current load characteristics.
    • 本发明提供一种碳材料和电池电极用材料,其适用于水电解质二次电池的电极材料,该材料包括具有特定形状的光学结构,其中材料的比例为IG / ID 在1300〜1400cm -1范围内的峰的峰强度(ID)与通过拉曼光谱测定的1580〜1620cm -1范围的峰的峰强度(IG)之间的差(R值) 使用拉曼显微光谱仪测定碳材料的粒子为0.38以上且1.2以下,通过X射线衍射法得到的平面(002)的平均晶面间距d002为0.335nm以上且0.338nm以下, 以及充电/放电循环特性和大电流负载特性优异的二次电池。
    • 67. 发明申请
    • Production of highly conductive graphitic films from polymer films
    • 从聚合物薄膜生产高导电性石墨膜
    • US20160059444A1
    • 2016-03-03
    • US14121387
    • 2014-08-29
    • Yanbo WangBor Z. JangDavid BurtonLucy FuAruna Zhamu
    • Yanbo WangBor Z. JangDavid BurtonLucy FuAruna Zhamu
    • B29C35/02C01B31/04
    • C01B31/04C01B32/20C01P2006/10C01P2006/32C01P2006/40
    • A one-step (direct graphitization) process for producing a graphitic film, comprising directly feeding a precursor polymer film, without going through a carbonization step, to a graphitization zone preset at a graphitization temperature no less than 2,200° C. for a period of residence time sufficient for converting the precursor polymer film to a porous graphitic film having a density from 0.1 g/cm3 to 1.5 g/cm3 and retreating the porous graphitic film from the graphitization zone. Preferably, the precursor polymer film is selected from the group consisting of polyimide, polyamide, phenolic resin, polyoxadiazole, polybenzoxazole, polybenzobisoxazole, polythiazole, polybenzothiazole, polybenzobisthiazole, poly(p-phenylene vinylene), polybenzimidazole, polybenzobisimidazole, polyacrylonitrile, and combinations thereof. Preferably, the precursor polymer film contains an amount of graphene sheets or expanded graphite flakes, preferably from 1% to 90% by weight, sufficient for promoting or accelerating graphitization.
    • 用于生产石墨膜的一步(直接石墨化)方法,包括直接将前体聚合物膜直接进料到不经过碳化步骤的石墨化区域,石墨化区域以石墨化温度不低于2200℃预设一段时间 将前体聚合物膜转化为密度为0.1g / cm 3至1.5g / cm 3的多孔石墨膜,并从石墨化区域中回收多孔石墨膜的足够的停留时间。 优选地,前体聚合物膜选自聚酰亚胺,聚酰胺,酚醛树脂,聚恶二唑,聚苯并恶唑,聚苯并双恶唑,聚噻唑,聚苯并噻唑,聚苯并二噻唑,聚(对亚苯基亚乙烯基),聚苯并咪唑,聚苯并双咪唑,聚丙烯腈及其组合。 优选地,前体聚合物膜含有足以促进或加速石墨化的量的石墨烯片或膨胀石墨片,优选为1重量%至90重量%。
    • 69. 发明申请
    • METHOD FOR PREPARING FLUORINE/NITROGEN CO-DOPED GRAPHITIZED CARBON MICROSPHERES WITH HIGH VOLUMETRIC SPECIFIC CAPACITANCE
    • 用于制备具有高体积电容器的氟/氮共沉淀碳纳米微球的方法
    • US20150364265A1
    • 2015-12-17
    • US14672454
    • 2015-03-30
    • Yanshan University
    • FAMING GAOJunshuang ZHOUJunchuan ZHANGZhichao LILi HOU
    • H01G11/34H01G11/38H01G11/44
    • H01G11/34C01B31/04C01B32/20C01P2004/32C01P2004/61H01G11/42H01G11/44Y02E60/13
    • A method for preparing fluorine/nitrogen co-doped graphitized carbon microspheres with high volumetric specific capacitance, mainly comprises: successively adding a carbon source, a nitrogen source, a fluorine source and a surfactant to a reactor under a nitrogen atmosphere, and stirring for 10-30 minutes before sealing the reactor; placing the reactor into a crucible furnace, heating at 300-600° C., for 6-48 hours, followed by naturally codling the reactor to room temperature and removing the reaction mixture therefrom; successively washing the resulted reaction mixture with absolute ethanol, 0.1 M-5 M diluted hydrochloride acid and distilled water for 3-6 times, filtering, and placing powder thus obtained in a vacuum oven and drying in vacuum at 60-100° C. for 6-12 hours. The present invention provides a simple process with moderate reaction conditions, high reproducibility, and low costs. The fluorine/nitrogen co-doped graphitized carbon microspheres prepared according to the present invention have a very high density, exhibit good electrochemical properties in an alkaline environment, as well as very high volumetric specific capacitance and good cyclic stability, and is of great importance in improving the properties of the electrode material for a capacitor.
    • 制备具有高体积比电容的氟/氮共掺杂石墨化碳微球的方法主要包括:在氮气氛下向反应器中连续加入碳源,氮源,氟源和表面活性剂,并搅拌10 -30分钟前密封反应堆; 将反应器放入坩埚炉中,在300-600℃下加热6-48小时,然后将反应器自然地加热至室温并从其中除去反应混合物; 依次用无水乙醇,0.1M-5M稀盐酸和蒸馏水将所得反应混合物洗涤3-6次,过滤并将如此获得的粉末置于真空烘箱中并在60-100℃真空干燥,得 6-12小时。 本发明提供了具有中等反应条件,高重现性和低成本的简单方法。 根据本发明制备的氟/氮共掺杂石墨化碳微球具有非常高的密度,在碱性环境中表现出良好的电化学性质,以及非常高的体积比电容和良好的循环稳定性,并且在 改善用于电容器的电极材料的性质。