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1. 发明申请

US20150014167A1 ELECTROCHEMICAL GAS SENSOR COMPRISING AN ANION-EXCHANGE MEMBRANE 审中-公开
标题翻译：包含阴离子交换膜的电化学气体传感器
公开(公告)号：US20150014167A1
公开(公告)日：2015-01-15
申请号：US14378258
申请日：2013-03-14
申请人： SOLVICORE GMBH & CO. KG
发明人： Holger Dziallas , Jan Byrknes , Christian Eickes , Alessandro Ghielmi
IPC分类号： G01N27/407
CPC分类号： G01N27/407 , G01N27/4074 , G01N27/4075 , G01N33/004
摘要： The present invention is directed to electrochemical gas sensors for the detection of combustible, flammable or toxic gases and to catalyst-coated membranes (CCMs) used therein. The gas sensor comprises at least one solid anion exchange membrane (AEM), a sensing electrode and a counter electrode. The sensing electrode comprises catalytically active material and anionic ionomer material, the weight ratio between the catalyst material and the anionic ionomer material in the sensing electrode is in the range of 3/1 to 99/1, preferably in the range of 4/1 to 30/1.Due to the use of anion exchange ionomer materials, the sensor can be made less expensive and suitable for high volume production. When applied for the detection of CO, the sensor shows good CO selectivity S(CO/H2) in the presence of hydrogen.
摘要翻译：本发明涉及用于检测可燃性，易燃或有毒气体的电化学气体传感器以及其中使用的催化剂涂覆膜（CCM）。气体传感器包括至少一个固体阴离子交换膜（AEM），感测电极和对电极。感测电极包括催化活性材料和阴离子离聚物材料，感测电极中催化剂材料和阴离子离聚物材料之间的重量比在3/1至99/1的范围内，优选在4/1至 30/1。由于使用阴离子交换离子聚合物材料，传感器可以制造成更便宜并且适合于大批量生产。当应用于CO的检测时，传感器在氢存在下显示出良好的CO选择性S（CO / H 2）。

2. 发明申请

US20150236354A1 COLLOIDAL DISPERSIONS COMPRISING PRECIOUS METAL PARTICLES AND ACIDIC lONOMER COMPONENTS AND METHODS OF THEIR MANUFACTURE AND USE 审中-公开
标题翻译：包含重金属颗粒和酸性成分组分的胶体分散体及其制备和使用方法
公开(公告)号：US20150236354A1
公开(公告)日：2015-08-20
申请号：US14414979
申请日：2013-08-29
申请人： SOLVICORE GMBH & CO. KG
发明人： Matthias Binder , Gerhard Heinz , Alessandro Ghielmi , Holger Dziallas , Volker Baenisch
IPC分类号： H01M4/92 , H01M4/86
CPC分类号： H01M4/92 , B01J13/0043 , C25B11/0442 , H01M4/8663 , H01M4/8828 , H01M4/921 , H01M4/925 , H01M4/926
摘要： The invention relates to colloidal dispersions comprising nano-sized precious metal particles (e.g. platinum or platinum alloy particles) and at least one ionomer component having acidic groups. The method for its manufacturing is based on a neutralization and dissolving process of a suitable precious metal precursor compound with a liquid acidic ionomer component, followed by a reduction step. Suitable precious metal precursors consist of precious metal atoms, hydrogen atoms, oxygen atoms and optionally carbon atoms. Examples for precursors are H2Pt(OH)6, Pd(OH)2 or Ir(OH)4, preferred reducing agents are aliphatic alcohols or hydrogen. The invention further relates to pre-products for the manufacture of such colloidal dispersions, namely to compositions which contain precious metal precursors and at least one acidic ionomer compound. The colloidal precious metal dispersions can be used for the preparation of catalyst inks, ionomer layers, catalyst layers, electrodes or composite catalyst materials and find broad application in fuel cell technology.
摘要翻译：本发明涉及包含纳米尺寸的贵金属颗粒（例如铂或铂合金颗粒）和至少一种具有酸性基团的离聚物组分的胶体分散体。其制造方法基于合适的贵金属前体化合物与液体酸性离聚物组分的中和和溶解过程，随后还原步骤。合适的贵金属前体由贵金属原子，氢原子，氧原子和任选的碳原子组成。前体的实例是H 2 Pt（OH）6，Pd（OH）2或Ir（OH）4，优选的还原剂是脂族醇或氢。本发明还涉及用于制造这种胶体分散体的预制品，即含有贵金属前体和至少一种酸性离聚物化合物的组合物。胶态贵金属分散体可用于制备催化剂油墨，离聚物层，催化剂层，电极或复合催化剂材料，并在燃料电池技术中得到广泛应用。

3. 发明授权

US11299810B2 Barrier layer for corrosion protection in electrochemical devices 有权
公开(公告)号：US11299810B2
公开(公告)日：2022-04-12
申请号：US14761782
申请日：2014-02-20
申请人： SOLVICORE GMBH & CO. KG
发明人： Jens-Peter Suchsland , Alessandro Ghielmi , Pia Braun
IPC分类号： H01M4/86 , H01M8/02 , C25B11/073 , H01M8/0245 , H01M8/0234 , C25B9/23 , C25B11/031 , C25B11/051 , H01M8/10
摘要： The invention is directed to a barrier layer for corrosion protection in electrochemical devices, e.g. carbon based gas diffusion layers (GDLs) in electrochemical devices, comprising electrically conductive ceramic material and a non-ionomeric polymer binder. The electrically conductive ceramic material has an electrical conductivity of >0.1 S/cm, preferably >1 S/cm in air atmosphere (as detected by the powder method) and is selected from the group of precious metal and/or base metal containing oxides, carbides, nitrides, borides and mixtures and combinations thereof. Membrane-electrode assemblies (MEAs), catalyst-coated membranes (CCMs), gas diffusion electrodes (GDEs) and gas diffusion layers (GDLs) comprising the barrier layer of the invention show improved corrosion resistance, preferably against carbon corrosion; particularly in start-up/shut-down cycles and fuel starvation situations of PEM fuel cells.

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