公开(公告)号：CA2862291C

公开(公告)日：2017-09-05

申请号：CA2862291

申请日：2012-01-20

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PROTSAILO LESIA V ,  STOLAR LAURA ROEN ,  MARZULLO JESSE M ,  GUMMALLA MALLIKA ,  BURLATSKY SERGEI F

IPC: H01M8/1004 ,  H01M4/92 ,  H01M4/96

Abstract: An example of a stable electrode structure is to use a gradient electrode that employs large platinum particle catalyst in the close proximity to the membrane supported on conventional carbon and small platinum particles in the section of the electrode closer to a GDL supported on a stabilized carbon. Some electrode parameters that contribute to electrode performance stability and reduced change in ECA are platinum-to-carbon ratio, size of platinum particles in various parts of the electrode, use of other stable catalysts instead of large particle size platinum (alloy, etc), depth of each gradient sublayer. Another example of a stable electrode structure is to use a mixture of platinum particle sizes on a carbon support, such as using platinum particles that may be 6 nanometers and 3 nanometers. A conductive support is typically one or more of the carbon blacks.

公开(公告)号：CA2862291A1

公开(公告)日：2013-07-25

申请号：CA2862291

申请日：2012-01-20

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PROTSAILO LESIA V ,  STOLAR LAURA ROEN ,  MARZULLO JESSE M ,  GUMMALLA MALLIKA ,  BURLATSKY SERGEI F

IPC: H01M4/86 ,  B01J21/18 ,  H01M4/92 ,  H01M8/02 ,  H01M8/10

Abstract: An example of a stable electrode structure is to use a gradient electrode that employs large platinum particle catalyst in the close proximity to the membrane supported on conventional carbon and small platinum particles in the section of the electrode closer to a GDL supported on a stabilized carbon. Some electrode parameters that contribute to electrode performance stability and reduced change in ECA are platinum-to-carbon ratio, size of platinum particles in various parts of the electrode, use of other stable catalysts instead of large particle size platinum (alloy, etc), depth of each gradient sublayer. Another example of a stable electrode structure is to use a mixture of platinum particle sizes on a carbon support, such as using platinum particles that may be 6 nanometers and 3 nanometers. A conductive support is typically one or more of the carbon blacks.

公开(公告)号：IN3036DEN2014A

公开(公告)日：2015-05-08

申请号：IN3036DEN2014

申请日：2014-04-16

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DARLING ROBERT MASON ,  STOLAR LAURA ROEN

IPC: H01M2/38

Abstract: A flow battery includes a liquid electrolyte having an electrochemically active specie. A flow field plate includes a first flow field channel and a second flow field channel that is separated from the first flow field channel by a rib. There is a flow path for the liquid electrolyte to flow over the rib between the channels. An electrode is arranged adjacent the flow field plate such that the liquid electrolyte that flows over the rib must flow through the electrode. The electrode includes a carbon paper that is catalytically active with regard to liquid electrolyte. The carbon paper defines a compressive strain of less than 20% at a compressive stress of 0.8 MPa and an uncompressed porosity in the range 60 85%.

公开(公告)号：EP2795696A4

公开(公告)日：2015-07-08

申请号：EP11877784

申请日：2011-12-20

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DARLING ROBERT MASON ,  STOLAR LAURA ROEN

IPC: H01M2/38 ,  H01M4/86 ,  H01M4/96 ,  H01M8/04 ,  H01M8/18 ,  H01M8/20

CPC classification number: H01M8/04186 ,  H01M4/8605 ,  H01M4/861 ,  H01M4/96 ,  H01M8/188 ,  H01M8/20 ,  Y02E60/528

公开(公告)号：EP2702625A4

公开(公告)日：2014-10-01

申请号：EP11864594

申请日：2011-04-25

Applicant: UNITED TECHNOLOGIES CORP

Inventor： RAMANATHAN SHRIRAM ,  STOLAR LAURA ROEN

IPC: H01M4/92 ,  B01J21/18 ,  B01J23/42 ,  B01J37/16 ,  H01M4/88

CPC classification number: H01M4/9075 ,  B01J21/18 ,  B01J23/42 ,  B01J37/024 ,  B01J37/0242 ,  B01J37/16 ,  H01M4/8817 ,  H01M4/885 ,  H01M4/926 ,  H01M8/1007 ,  H01M2008/1095

Abstract: A method of forming a catalyst material includes coating agglomerates of catalyst support particles with an ionomer material. After coating the agglomerates of catalyst support particles, a catalyst metal precursor is deposited by chemical infiltration onto peripheral surfaces of the agglomerates of catalyst support particles. The catalyst metal precursor is then chemically reduced to form catalyst metal on the peripheral surfaces of the agglomerates of catalyst support particles.

Abstract translation: 形成催化剂材料的方法包括用离聚物材料涂覆催化剂载体颗粒的附聚物。 在涂覆催化剂载体颗粒的附聚物之后，通过化学渗透将催化剂金属前体沉积到催化剂载体颗粒的附聚物的外围表面上。 然后催化剂金属前体被化学还原以在催化剂载体颗粒的附聚物的外围表面上形成催化剂金属。