Carbon Aerogels, Process for Their Preparation and Their Use
    1.
    发明申请
    Carbon Aerogels, Process for Their Preparation and Their Use 审中-公开
    碳气凝胶,其制备方法及其应用

    公开(公告)号:US20100288160A1

    公开(公告)日:2010-11-18

    申请号:US12812543

    申请日:2009-01-15

    摘要: The invention relates to carbon aerogels with particle sizes less than 1 μm, The carbon aerogels are prepared by (A) reating a mono- and/or polyhydroxybenzene, an aldehyde and a catalyst in a reactor at a reaction temperature T in the range from 75-200° C. at a pressure of 80-2400 kPa, (B) then spraying the reaction mixture from process step (A) into an acid, to drying the resulting product from process step (B) and (D) carbonizing it. The carbon aerogels according to the invention can be used as filler, reinforcing filler, UV stabilizer, electrode material, sound absorbents, thermal insulating material, catalyst, catalyst support, conductivity additive, absorbent for as and/or liquid preparation or pigment.

    摘要翻译: 本发明涉及粒度小于1μm的碳气凝胶。碳气凝胶是通过(A)在反应器中在反应温度T下将单和/或多羟基苯,醛和催化剂反应在75℃的范围内制备的 -200℃,压力为80-2400kPa,(B)然后将工艺步骤(A)的反应混合物喷入酸中,从工艺步骤(B)中干燥所得产物,(D)将其碳化。 根据本发明的碳气凝胶可用作填料,增强填料,UV稳定剂,电极材料,吸声剂,绝热材料,催化剂,催化剂载体,导电添加剂,用于和/或液体制备的吸收剂或颜料。

    NANOSTRUCTURED SI-C-COMPOSITE FOR ELECTRODE APPLICATIONS
    2.
    发明申请
    NANOSTRUCTURED SI-C-COMPOSITE FOR ELECTRODE APPLICATIONS 审中-公开
    用于电极应用的纳米结构的SI-C复合材料

    公开(公告)号:US20120156493A1

    公开(公告)日:2012-06-21

    申请号:US13384417

    申请日:2010-05-18

    IPC分类号: B32B5/16 H01B1/04 B82Y30/00

    摘要: The invention relates to a process for producing nanostructured silicon-carbon composites, comprising the (A) introduction of at least one of components (a1) mono- and/or polyhydroxyaromatic compound, and (a2) an aldehyde, and (a3) a catalyst, into a reactor to obtain a composition in which the components react with one another in the presence of the catalyst at a reaction temperature T of 75 to 200° C., and at a pressure of 80 to 2400 kPa, and over a period to of 0.001 to 1 000 000 s, which gives a preliminary gel, and (B) introduction of at least one component (b1) sub-micron silicon powder, in crystalline or amorphous form, into the composition obtained during or after step (A), and then (C) introduction of the product obtained after step (B) into a neutralizing agent selected from an acid if (a3) is a basic catalyst, or an alkali if (a3) is an acidic catalyst, which gives a finely divided product, and (D) drying the product obtained during or after step (C) and then (E) carbonizing the product obtained after step (D) at a temperature of 500 to 1200° C., to the composites themselves, to the use thereof as an anode material for lithium ion cells and batteries, and to the lithium ion cells and batteries.

    摘要翻译: 本发明涉及一种生产纳米结构的硅 - 碳复合材料的方法,包括(A)引入组分(a1)单 - 和/或多羟基芳族化合物中的至少一种,和(a2)醛,和(a3)催化剂 在反应温度T为75〜200℃,压力为80〜2400kPa的条件下,在催化剂的存在下,使成分彼此反应的组合物,并在一段时间内, 0.001至1 000 000秒,其产生初步凝胶,和(B)将至少一种(b)亚微米硅粉末以结晶或无定形形式引入到步骤(A)期间或之后获得的组合物中, ,然后(C)将(a3)为碱性催化剂,或(a3)为酸性催化剂的碱,如果(a3)为酸性催化剂,则将步骤(B)后得到的产物引入选自酸的中和剂, 产品,和(D)干燥步骤(C)期间或之后获得的产物,然后(E)碳氮化物 在步骤(D)后获得的产物在500-1200℃的温度下,作为锂离子电池和电池的负极材料,以及锂离子电池和电池,使用它们本身。