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公开(公告)号：US5902562A
公开(公告)日：1999-05-11
申请号：US960112
申请日：1997-10-27
CPC分类号： D01F9/21
摘要： A method for preparing carbon materials having high surface area and high macropore volume to provide high permeability. These carbon materials are prepared by dissolving a carbonizable polymer precursor, in a solvent. The solution is cooled to form a gel. The solvent is extracted from the gel by employing a non-solvent for the polymer. The non-solvent is removed by critical point drying in CO.sub.2 at an elevated pressure and temperature or evaporation in a vacuum oven. The dried product is heated in an inert atmosphere in a first heating step to a first temperature and maintained there for a time sufficient to substantially cross-link the polymer material. The cross-linked polymer material is then carbonized in an inert atmosphere.
摘要翻译： 一种制备具有高表面积和高大孔体积的碳材料以提供高渗透性的方法。 这些碳材料通过将可碳化聚合物前体溶解在溶剂中来制备。 将溶液冷却以形成凝胶。 通过使用聚合物的非溶剂从凝胶中提取溶剂。 通过在升高的压力和温度下在CO 2中的临界点干燥或在真空烘箱中蒸发除去非溶剂。 将干燥的产物在惰性气氛中在第一加热步骤中加热至第一温度，并将其保持足以使聚合物材料基本上交联的时间。 然后将交联的聚合物材料在惰性气氛中碳化。
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2.发明授权
公开(公告)号：US5510212A
公开(公告)日：1996-04-23
申请号：US350281
申请日：1994-12-02
申请人： Frank M. Delnick , Narayan Doddapaneni , Robert R. Lagasse , Ronald F. Simandl , D. Gerald Glasgow , Alan Sylwester
发明人： Frank M. Delnick , Narayan Doddapaneni , Robert R. Lagasse , Ronald F. Simandl , D. Gerald Glasgow , Alan Sylwester
摘要： A secondary battery having a rechargeable lithium-containing anode, a cathode, and a separator positioned between the cathode and anode with an organic electrolyte solution absorbed therein is provided. The anode comprises three-dimensional microporous carbon structures synthesized by the controlled pyrolysis of gel derived polymer foam precursors. The gradual heating process in the carbonization of pretreated foam precursors stabilizes the pore structures in the pretreated foam.
摘要翻译： 提供了具有可再充电的含锂阳极，阴极和位于阴极和阳极之间并且吸收有机电解质溶液的隔膜的二次电池。 阳极包括通过凝胶衍生的聚合物泡沫前体的受控热解合成的三维微孔碳结构。 预处理的泡沫前体的碳化中的逐渐加热过程稳定了预处理泡沫体中的孔结构。
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