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公开(公告)号：US20220003936A1
公开(公告)日：2022-01-06
申请号：US16919545
申请日：2020-07-02
Applicant: Robert Bosch GmbH
Inventor： Ning Wang , Christoph Schelling , Alexander Huebel , Hartmut Kueppers , Stefan Pinter , Uma Krishnamoorthy
Abstract: An optical switch includes a bus waveguide supported by a substrate, an actuation electrode supported by the substrate, the actuation electrode having fins that protrude in a direction perpendicular to the substrate and to the bus waveguide, and a reaction electrode having interdigitated fins configured to form a comb drive with the actuation electrode. When a voltage difference between the reaction electrode and the actuation electrode is less than a lower threshold, the reaction electrode is positioned a first distance from the bus waveguide, when the voltage difference between the reaction electrode and the actuation electrode is greater than an upper threshold, the reaction electrode is positioned a second distance from the bus waveguide, and the second distance is less than the first distance.
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公开(公告)号：US11670790B2
公开(公告)日：2023-06-06
申请号：US16694305
申请日：2019-11-25
Applicant: Robert Bosch GmbH
Inventor： Soo Kim , Jonathan Mailoa , Timothy Schultz , Nathan Craig , Uma Krishnamoorthy , Jake Christensen
IPC: H01M8/10 , H01M8/1004 , H01M4/86 , H01M4/92 , H01M8/1039 , H01M8/1041 , H01M4/88
CPC classification number: H01M8/1004 , H01M4/8605 , H01M4/8652 , H01M4/8825 , H01M4/92 , H01M8/1039 , H01M8/1041 , H01M2008/1095
Abstract: A fuel cell membrane electrode assembly including a polymer electrolyte membrane (PEM) and first and second electrodes. The PEM is situated between the first and second electrodes. The first electrode includes a first catalyst material layer including a first catalyst material and having first and second surfaces. The first electrode includes first and second material layers adjacent to the first and second surfaces, respectively, of the first catalyst material. The first material layer faces away from the PEM and the second material layer faces the PEM. The first material layer comprises a graphene-based material layer having a number of defects configured to mitigate dissolution of the first catalyst material through the first material layer.
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公开(公告)号：US11360270B2
公开(公告)日：2022-06-14
申请号：US16919545
申请日：2020-07-02
Applicant: Robert Bosch GmbH
Inventor： Ning Wang , Christoph Schelling , Alexander Huebel , Hartmut Kueppers , Stefan Pinter , Uma Krishnamoorthy
Abstract: An optical switch includes a bus waveguide supported by a substrate, an actuation electrode supported by the substrate, the actuation electrode having fins that protrude in a direction perpendicular to the substrate and to the bus waveguide, and a reaction electrode having interdigitated fins configured to form a comb drive with the actuation electrode. When a voltage difference between the reaction electrode and the actuation electrode is less than a lower threshold, the reaction electrode is positioned a first distance from the bus waveguide, when the voltage difference between the reaction electrode and the actuation electrode is greater than an upper threshold, the reaction electrode is positioned a second distance from the bus waveguide, and the second distance is less than the first distance.
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