公开(公告)号：US11901547B2

公开(公告)日：2024-02-13

申请号：US17311405

申请日：2019-12-03

Applicant: Robert Bosch GmbH

Inventor： Harald Bauer ,  Wolfgang Weydanz

IPC: H01M4/00 ,  H01M4/1393 ,  H01M4/62

CPC classification number: H01M4/1393 ,  H01M4/622 ,  H01M4/625

Abstract: The present invention relates to a method for producing a precursor material (10) for an electrochemical cell. The method comprises the steps of adding a matrix material (18) to a fluidized bed (40), and adding a carrier medium (48) and a de-agglomerated carbon nanotube material (22) to the fluidized bed (40), so that the carbon nanotube material (22) and the carrier medium (48) is applied to the matrix material (18) and the latter is granulated therewith, wherein the carbon nanotube material (22) has been suspended and de-agglomerated prior to addition to the carrier medium (48), and/or the carbon nanotube material (22) present in de-agglomerated form in the fluidized bed (40) dissolving with the carrier medium (48) in the fluidized bed (40).

公开(公告)号：US20220123281A1

公开(公告)日：2022-04-21

申请号：US17311405

申请日：2019-12-03

Applicant: Robert Bosch GmbH

Inventor： Harald Bauer ,  Wolfgang Weydanz

IPC: H01M4/1393 ,  H01M4/62

Abstract: The present invention relates to a method for producing a precursor material (10) for an electrochemical cell. The method comprises the steps of adding a matrix material (18) to a fluidized bed (40), and adding a carrier medium (48) and a de-agglomerated carbon nanotube material (22) to the fluidized bed (40), so that the carbon nanotube material (22) and the carrier medium (48) is applied to the matrix material (18) and the latter is granulated therewith, wherein the carbon nanotube material (22) has been suspended and de-agglomerated prior to addition to the carrier medium (48), and/or the carbon nanotube material (22) present in de-agglomerated form in the fluidized bed (40) dissolving with the carrier medium (48) in the fluidized bed (40).

公开(公告)号：US20190081331A1

公开(公告)日：2019-03-14

申请号：US16066407

申请日：2016-12-02

Applicant: Robert Bosch GmbH

Inventor： Harald Bauer ,  Helerson Kemmer ,  Herbert Gruhn ,  Juergen Hackenberg

IPC: H01M8/026 ,  H01M8/0247 ,  H01M8/0245

Abstract: The invention relates to a method for producing a flow plate (10, 28) for a fuel cell (12), comprising a plurality of gas guide webs (14) and at least one electrically conductive and porous layer unit (16) arranged on the gas guide webs (14). It is proposed that a geometry and/or a structure of the layer unit (16) is produced during a material application onto the gas guide webs (14).

公开(公告)号：US20180076464A1

公开(公告)日：2018-03-15

申请号：US15702276

申请日：2017-09-12

Applicant: Robert Bosch GmbH

Inventor： Harald Bauer

IPC: H01M4/72 ,  H01M4/66 ,  H01M2/30 ,  H01M2/26

CPC classification number: H01M4/72 ,  H01M2/26 ,  H01M2/30 ,  H01M4/13 ,  H01M4/139 ,  H01M4/661 ,  H01M4/662 ,  H01M4/70 ,  H01M8/0247

Abstract: A method for producing an electrode having an electrically conductive current collector layer having a terminal region for connection to an electrical power circuit, in which to improve the electrical discharge via the terminal region, the current collector layer has at least one structural element having an electrical conductivity that is increased compared to the current collector layer, through which structural element the electrical resistance between a point on the current collector layer and the terminal region is reduced, the method including: providing at least one free-standing active material foil; providing an electrically conductive layer on at least one surface of the active material foil, the electrically conductive layer being formed immediately on the surface of the active material foil to form the current collector layer; and connecting an electrical terminal region to the electrically conductive layer to enable connection to an electrical power circuit.

公开(公告)号：US20240282978A1

公开(公告)日：2024-08-22

申请号：US18570246

申请日：2022-06-14

Applicant: Robert Bosch GmbH

Inventor： Erhard Hirth ,  Harald Bauer

IPC: H01M4/86 ,  C25B9/75 ,  C25B9/77 ,  C25B11/032 ,  H01M4/90 ,  H01M8/1004

CPC classification number: H01M4/8657 ,  C25B9/75 ,  C25B9/77 ,  C25B11/032 ,  H01M4/8605 ,  H01M4/9083 ,  H01M8/1004

Abstract: The presented invention relates to a cell assembly (100) for the controlled guiding of reactive fluids, wherein: the cell assembly (100) comprises a membrane (101), which has a first side and a second side opposite from the first side; on each of the first side and the second side, a catalyst layer (103) and a microporous layer (105) are disposed; the microporous layer (105) and/or the catalyst layer (103) of at least one side is profiled in such a way that the surface roughness of the catalyst layer (103) differs from the surface roughness of the microporous layer (105), so that the catalyst layer (103) and the microporous layer (105) fit together in parts.

公开(公告)号：US20220271304A1

公开(公告)日：2022-08-25

申请号：US17628630

申请日：2020-06-09

Applicant: Robert Bosch GmbH

Inventor： Erhard Hirth ,  Harald Bauer

IPC: H01M8/0258 ,  H01M8/0245 ,  H01M8/0234

Abstract: The invention relates to a method for producing a bipolar plate (10) for a fuel cell (1), comprising a plate body (11) for separating the fuel cell (1) from a neighbouring fuel cell (1) or a housing, wherein the plate body (11) has a flow field structure (1b) for introducing the reactants into the fuel cell (1). To that end, according to the invention, the method comprises the following steps: providing a mass (D1) made of electrically conductive particles and a polymer-based adhesive; applying the provided mass (D1) to the plate body (11) of the bipolar plate (10) in the form of the flow field structure (1b); pyrolising the applied mass (D1) which remains on the plate body (11) of the bipolar plate (10) as a shaping element in the form of the flow field structure (1b) and which is connected to said plate body.

公开(公告)号：US10439202B2

公开(公告)日：2019-10-08

申请号：US15689131

申请日：2017-08-29

Applicant: Robert Bosch GmbH

Inventor： Armin Glock ,  Harald Bauer

IPC: H01B1/24 ,  H01M4/1391 ,  H01G9/032 ,  H01G11/50 ,  H01M4/131 ,  H01G11/38 ,  H01G11/46 ,  H01G11/86 ,  H01M4/525 ,  H01M4/62

Abstract: A method is provided for producing a homogenous particulate material composition, including at least one particulate material M, at least one additive Z, and at least one binding agent B, the method including providing at least one particulate material M, at least one additive Z, and at least one binding agent B; producing a homogenous mixture G1 from the at least one particulate material M and the at least one additive Z in a gravity mixer; producing a mixture G2 from the mixture G1 and the at least one binding agent B, with the introduction of shear forces; and removing dispersed gases from the mixture G2.

公开(公告)号：US20180076446A1

公开(公告)日：2018-03-15

申请号：US15689131

申请日：2017-08-29

Applicant: Robert Bosch GmbH

Inventor： Armin Glock ,  Harald Bauer

IPC: H01M4/1391 ,  H01G11/50 ,  H01B1/24 ,  H01G9/032

CPC classification number: H01M4/1391 ,  H01B1/24 ,  H01G9/032 ,  H01G11/38 ,  H01G11/46 ,  H01G11/50 ,  H01G11/86 ,  H01M4/131 ,  H01M4/525 ,  H01M4/622 ,  H01M4/625

Abstract: A method is provided for producing a homogenous particulate material composition, including at least one particulate material M, at least one additive Z, and at least one binding agent B, the method including providing at least one particulate material M, at least one additive Z, and at least one binding agent B; producing a homogenous mixture G1 from the at least one particulate material M and the at least one additive Z in a gravity mixer; producing a mixture G2 from the mixture G1 and the at least one binding agent B, with the introduction of shear forces; and removing dispersed gases from the mixture G2.

公开(公告)号：US20230197982A1

公开(公告)日：2023-06-22

申请号：US17926163

申请日：2021-05-10

Applicant: Robert Bosch GmbH

Inventor： Christian Diessner ,  Harald Bauer ,  Peter Lindner ,  Thomas Betzitza ,  Volker Henrichs

IPC: H01M8/0286 ,  H01M8/0284 ,  H01M8/0276

CPC classification number: H01M8/0286 ,  H01M8/0284 ,  H01M8/0276

Abstract: The invention relates to a method for producing a sealed fuel cell (101) for a fuel cell stack (100), comprising a cathode-side distributor plate (K), an anode-side distributor plate (A) and a membrane electrode unit (MEA), said method comprising the following steps: 1) providing a cathode-side distributor plate (K) and an anode-side distributor plate (A), 2) providing a first film web (B1) for sealing the cathode-side distributor plate (K) and a second film web (B2) for sealing the anode-side distributor plate (A), 3) punching a cathode-side distributor structure (VK) for the cathode-side distributor plate (K) out of the first film web (B1) and an anode-side distributor structure (VA) for the anode-side distributor plate (A) out of the second film web (B2), 4) cutting the first film web (B1) to produce a first seal (D1) for the cathode-side distributor structure (VK) and cutting the second film web (B2) to produce a second seal (D2) for the anode-side distributor structure (VA), 5) placing the first seal (D1) on the cathode-side distributor plate (K) and the second seal (D2) on the anode-side distributor plate (A), 6) heating the cathode-side distributor plate (K) and the anode-side distributor plate (A) in order to connect together the first seal (D1) on the cathode-side distributor plate (K) and the second seal (D2) on the anode-side distributor plate (A) in an integrally joined manner, more particularly to melt said seals together.

公开(公告)号：US20230102064A1

公开(公告)日：2023-03-30

申请号：US17908889

申请日：2021-01-05

Applicant: Robert Bosch GmbH

Inventor： Elisabeth Buehler ,  Harald Bauer ,  Juergen Hackenberg ,  Marcus Wegner ,  Peter Lindner

IPC: H01M4/88 ,  H01M4/86

Abstract: invention relates to a distributing structure (10) for a fuel cell (1) in the form of a microporous layer, having: a multiplicity of particles (11), wherein the particles (11) are designed to provide the distributing structure (10) with mechanical stability and electrical conductivity, and wherein a multiplicity of pores (P) are formed between the particles (11) for the purposes of distributing reactants (H2, O2) through the distributing structure (10) and of discharging a product water (H2O), the invention providing, for this purpose, a multiplicity of fibres (12), which are distributed within the microporous layer such that the distributing structure (10) has a first diffusion coefficient (D1) in a first planar direction (x) in relation to the plane of extent (x, y) of the microporous layer, and that the distributing structure (10) has a second diffusion coefficient (D2) in a second planar direction (y) in relation to the plane of extent