公开(公告)号：US20120148938A1

公开(公告)日：2012-06-14

申请号：US13242972

申请日：2011-09-23

申请人： Dae-jong Yoo ,  Seong-woo Choi ,  So-young Park

发明人： Dae-jong Yoo ,  Seong-woo Choi ,  So-young Park

IPC分类号： H01M8/10 ,  H01M4/86 ,  H01B1/12 ,  C08J5/22 ,  C08G73/06

CPC分类号： H01M8/1004 ,  C08G73/06 ,  C08G73/22 ,  C08J5/2256 ,  C08J2379/06 ,  C08L79/04 ,  H01B1/122 ,  H01M4/8605 ,  H01M4/921 ,  H01M8/0289 ,  H01M8/103 ,  Y02E60/521

摘要： A conductive composition, a polymer obtained from the conductive composition, a method of preparing the composition, an electrode and electrolyte membrane of a fuel cell, each including at least one of the composition and the polymer, and a fuel cell including at least one of the composition and the polymer. The conductive composition includes at least one benzoxazine-based compound with a conductive functional group and a cross-linkable compound. A composition including a conductive functional group and a polymer that is a polymerization product of the composition demonstrates good resistance to chemicals, heat, and acid. An electrode for fuel cells that includes the same demonstrates improved electrical conductivity.

摘要翻译： 导电组合物，由导电组合物获得的聚合物，制备组合物的方法，燃料电池的电极和电解质膜，每个包括组合物和聚合物中的至少一种，以及燃料电池，其包括以下各项中的至少一种： 组合物和聚合物。 导电组合物包含至少一种具有导电官能团的苯并恶嗪类化合物和可交联的化合物。 包含导电官能团和作为该组合物的聚合产物的聚合物的组合物表现出对化学品，热和酸的良好抗性。 包括该电极的燃料电池用电极表现出改善的导电性。

公开(公告)号：US20080020264A1

公开(公告)日：2008-01-24

申请号：US11765033

申请日：2007-06-19

申请人： Hee-young SUN ,  Seong-woo Choi ,  Tae-young Kim

发明人： Hee-young SUN ,  Seong-woo Choi ,  Tae-young Kim

IPC分类号： H01M4/94 ,  H01M4/84 ,  H01M8/02 ,  H01M4/88

CPC分类号： H01M4/8663 ,  H01M4/8652 ,  H01M4/8807 ,  H01M4/8828 ,  H01M4/9008 ,  H01M4/92 ,  H01M8/0234 ,  H01M2008/1095 ,  Y02P70/56 ,  Y10T29/49115

摘要： An electrode for fuel cells including a catalyst layer containing a benzoxazine monomer, a catalyst and a binder, and a fuel cell employing the electrode. The electrode for the fuel cells contains an even distribution of benzoxazine monomer, which is a hydrophilic (or phosphoric acidophilic) material and dissolves in phosphoric acid but does not poison catalysts, thereby improving the wetting capability of phosphoric acid (H3PO4) within the electrodes and thus allowing phosphoric acid to permeate first into micropores in electrodes. As a result, flooding is efficiently prevented. That is, liquid phosphoric acid existing in large amount within the electrodes inhibits gas diffusion which; this flooding occurs when phosphoric acid permeates into macropores in the electrodes. This prevention of flooding increases the three-phase interfacial area of gas (fuel gas or oxidized gas)-liquid (phosphoric acid)-solid (catalyst). Therefore, the fuel cell employing the electrode can operate under conditions of high-temperature and a dry environment and demonstrate improved cell performance.

摘要翻译： 包括含有苯并恶嗪单体，催化剂和粘合剂的催化剂层的燃料电池用电极和使用该电极的燃料电池。 用于燃料电池的电极含有均匀分布的苯并吩嗪单体，其为亲水性（或磷酸性）材料，并溶解于磷酸中，但不会中毒催化剂，从而提高电极内磷酸（H 3 PO 4）的润湿能力， 从而允许磷酸首先渗透到电极中的微孔中。 结果，有效地防止了淹水。 也就是说，在电极内大量存在的液体磷酸抑制气体扩散， 当磷酸渗透到电极中的大孔中时，发生这种溢流。 这种防止淹水增加了气体（燃料气体或氧化气体） - 液体（磷酸） - 固体（催化剂）的三相界面面积。 因此，使用电极的燃料电池可以在高温和干燥环境的条件下工作，并且表现出改善的电池性能。

公开(公告)号：US20070184323A1

公开(公告)日：2007-08-09

申请号：US11514831

申请日：2006-09-05

申请人： Myung-jin Lee ,  Seong-woo Choi ,  Hee-young Sun ,  Woo-sung Jeon

发明人： Myung-jin Lee ,  Seong-woo Choi ,  Hee-young Sun ,  Woo-sung Jeon

IPC分类号： H01M8/10 ,  C08J5/22

CPC分类号： C08J5/22 ,  C08J2379/06 ,  H01M4/921 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1039 ,  H01M8/1072 ,  H01M2300/0082 ,  Y02P70/56

摘要： An electrolyte membrane includes a cross-linked reaction product of a benzoxazine monomer and a cross-linkable compound. The electrolyte membrane is impregnated with 300 to 600 parts by weight of phosphoric acid based on 100 parts by weight of the electrolyte membrane, and has a yield strain 0.5% or less, and a yield stress 0.3 Mpa or less. The cross-linked material has a strong acid trapping ability with respect to the benzoxazine compound and excellent mechanical properties due to a cross-linkage. Also, the solubility of the cross-linked material in polyphosphoric acid is low, thereby showing excellent chemical stability. Accordingly, when the cross-linked material is used, an electrolyte membrane having an excellent liquid supplementing ability and excellent mechanical and chemical stability at a high temperature can be obtained. The cross-linked material can be obtained by a simple polymerization process by combining a benzoxazine monomer and a crosslinkable compound and by using heat instead of using a polymerization initiator or a cross-linking agent.

摘要翻译： 电解质膜包括苯并恶嗪单体和可交联化合物的交联反应产物。 基于100重量份的电解质膜，以300重量份的磷酸浸渍电解质膜，其屈服应变为0.5％以下，屈服应力为0.3Mpa以下。 交联材料相对于苯并恶嗪化合物具有强的酸捕获能力，并且由于交联而具有优异的机械性能。 此外，交联材料在多磷酸中的溶解度低，因此表现出优异的化学稳定性。 因此，当使用交联材料时，可以获得在高温下具有优异的液体补充能力和优异的机械和化学稳定性的电解质膜。 交联材料可以通过简单的聚合方法通过组合苯并恶嗪单体和可交联化合物，并且通过使用热代替聚合引发剂或交联剂来获得。