公开(公告)号：US20240154212A1

公开(公告)日：2024-05-09

申请号：US18547205

申请日：2022-02-21

Applicant: CELLCENTRIC GMBH & CO. KG

Inventor： Matthias JESSE ,  Jürgen LEITZ ,  Christoph ASSFALG ,  Mathias KUGEL ,  Benjamin PIECK ,  Andreas POSVERT ,  Florian BIESINGER

IPC: H01M16/00 ,  H01M10/42 ,  H02J1/12 ,  H02J7/00 ,  H02J7/34

CPC classification number: H01M16/006 ,  H01M10/425 ,  H02J1/12 ,  H02J7/0031 ,  H02J7/34 ,  B60L3/0053 ,  H01M2010/4278 ,  H01M2200/103 ,  H01M2220/20 ,  H01M2250/20 ,  H02J2207/20

Abstract: The invention relates to a device for energy distribution in a fuel cell system having at least one fuel cell stack and a high-voltage battery, having electrical terminals for the fuel cell stack and the high-voltage battery, and having at least one communication interface, having a converter, a battery circuit breaker for disconnecting the high-voltage battery and the fuel cell stack, and having an emergency shutdown device for connecting the poles of the fuel cell stack, wherein the battery circuit breaker is arranged between the converter and the high-voltage battery. The device according to the invention is characterized in that an EMC filter is provided and that the battery circuit breaker is configured to disconnect both electrical poles of the connection.

公开(公告)号：US20230178764A1

公开(公告)日：2023-06-08

申请号：US17998778

申请日：2021-05-12

Applicant: CELLCENTRIC GMBH & CO. KG

Inventor： Philipp HAUSMANN ,  Oliver HARR ,  Benjamin PIECK

IPC: H01M8/04111 ,  H01M8/04746 ,  H01M8/04089

CPC classification number: H01M8/04111 ,  H01M8/04097 ,  H01M8/04761 ,  F04D13/06

Abstract: The invention relates to an air supply device (1) for fuel cell systems (2, 3) with a flow compressor and an electric drive motor (4) for the flow compressor, wherein the flow compressor has two compressor wheels (6, 7) which are essentially symmetrical and which are arranged, together with the electric drive motor (4) there between, on a common shaft (5). The air supply device according to the invention is characterized in that the two compressor wheels (6, 7) are connected on the pressure side to two systems (2, 3, 10, 13) which are pneumatically not permanently connected. A fuel cell system (2, 3) which uses such an air supply device (1) is also claimed.

公开(公告)号：US20230402632A1

公开(公告)日：2023-12-14

申请号：US18248793

申请日：2021-10-14

Applicant: CELLCENTRIC GMBH & CO. KG

Inventor： Philipp HAUSMANN ,  Marc KOELMEL ,  Benjamin PIECK

IPC: H01M8/04537 ,  H01M8/0202 ,  H01M8/242 ,  G01R15/22

CPC classification number: H01M8/04552 ,  H01M8/0269 ,  H01M8/242 ,  G01R15/22

Abstract: The invention relates to an apparatus for monitoring the cell voltage of an individual cell (3), formed by a membrane electrode assembly (4) and bipolar plates (6), of a fuel cell stack (1), the apparatus having a measuring device (7) for each of the individual cells (3), which measuring device comprises an optical signal generator (9) which is controllable by the measuring device. The apparatus according to the invention is characterized in that the measuring device (7) is formed on a flexible circuit board that is connected to a frame (5) of a framed membrane electrode assembly (4, 5) or is formed as part of the frame.

公开(公告)号：US20240063405A1

公开(公告)日：2024-02-22

申请号：US18261212

申请日：2022-01-20

Applicant: CELLCENTRIC GMBH & CO. KG

Inventor： Oliver HARR ,  Philipp HAUSMANN ,  Benjamin PIECK

IPC: H01M8/04111 ,  H01M8/04089 ,  H01M8/04119 ,  H01M8/249

CPC classification number: H01M8/04111 ,  H01M8/04097 ,  H01M8/04126 ,  H01M8/249

Abstract: The invention relates to a fuel cell facility (1) having two parallel fuel cell systems (13, 14), each of which comprises at least one fuel cell stack (15, 16, 17, 18) having anode-side and cathode-side periphery, and having a common air conveying device (2), The fuel cell facility (1) according to the invention is characterized in that the air conveying device (2) is designed in two stages, wherein both stages are designed in the form of flow compressors (3, 4) which each have one compressor wheel (8, 9, 10, 11) per stage, wherein the compressor wheels (8, 9; 10, 11) for the one and the other fuel cell system (13; 14) are arranged symmetrically to at least one electrical machine (5, 6) on a shaft (7).

公开(公告)号：US20230197988A1

公开(公告)日：2023-06-22

申请号：US17998770

申请日：2021-05-12

Applicant: CELLCENTRIC GMBH & CO. KG

Inventor： Oliver HARR ,  Philipp HAUSMANN ,  Benjamin PIECK

IPC: H01M8/04225 ,  H01M8/04111 ,  H01M8/04119 ,  H01M8/04223

CPC classification number: H01M8/04225 ,  H01M8/04111 ,  H01M8/04126 ,  H01M8/04253 ,  H01M8/04156

Abstract: The invention relates to a fuel cell system (2) with at least one fuel cell stack (19), which comprises an anode chamber (20) and a cathode chamber (21), with at least one air conveying device (3) for the supply of the cathode chamber (21) with air via a feed air line (22), with an outlet air line (23) from the cathode chamber (21), with at least one fuel supply device (26) for the supply of the anode chamber (20) with fuel, with at least one anode circuit (28) for the recirculation of unused fuel around the anode chamber (20), furthermore with a cathode bypass (37). The fuel cell system according to the invention is characterized in that the cathode bypass line (37) branches off from the feed air line (22) upstream of or in the region of a valve device (35) in said feed air line (22), and opens into the outlet air line downstream of or in the region of a further valve device (36) in said outlet air line (23), wherein a gas jet pump (38) which can be driven by the air which flows around the cathode chamber (21) is arranged in the cathode bypass (37), which gas jet pump (38) is connected switchably on the suction side to the anode chamber (20) and/or the cathode chamber (21).