ClassID:

213258

H01M2004/8694 - CPC Classification

Classification description:

Electrodes; Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity Bipolar electrodes

Recent Application in this class:
#1
20260155406
2026-06-04

BIPOLAR PLATE AND METHOD FOR PRODUCING A BIPOLAR PLATE

#2
20260121096
2026-04-30

Redox Tolerant Fuel Electrode for Solid Oxide Electrochemical Cells and Stacks

#3
20260058171
2026-02-26

ELECTRODE BOARD FOR A BIPOLAR PLATE AND BIPOLAR PLATE FOR A FUEL CELL STACK, METHOD FOR MANUFACTURING A FUEL CELL STACK

#4
20260005280
2026-01-01

STACK STRUCTURE FOR AN ELECTROCHEMICAL ENERGY CONVERTER, AND METHOD FOR PRODUCING THE STACK STRUCTURE

#5
20260002269
2026-01-01

MEMBRANE ELECTRODE ASSEMBLY HAVING BIFUNCTIONAL CATALYSTS FOR FUEL CELLS AND ELECTROLYZERS

#6
20250309290
2025-10-02

ELECTROCHEMICAL HYDROGEN COMPRESSION SYSTEM

#7
20250293265
2025-09-18

BIPOLAR PLATE FOR METAL-AIR/LIQUID BATTERIES

#8
20250192190
2025-06-12

METHOD OF MANUFACTURING A BIPOLAR PLATE FOR AN ELECTROCHEMICAL SYSTEM AND BIPOLAR PLATE FOR AN ELECTROCHEMICAL SYSTEM

#9
20250096282
2025-03-20

METAL FOAM GAS DIFFUSION LAYERS WITH HYDROPHILIC SURFACES AND POLYMER-ELECTROLYTE-MEMBRANE FUEL CELLS WITH METAL FOAM GAS DIFFUSION LAYERS

#10
20250030009
2025-01-23

LAYER SYSTEM, ELECTRODE PLATE COMPRISING SUCH A LAYER SYSTEM, PROCESS FOR PRODUCTION THEREOF, AND FUEL CELL, ELECTROLYZER OR REDOX FLOW CELL

#11
20250006967
2025-01-02

METHODS AND SYSTEMS FOR SURFACE DISRUPTION OF BIPOLAR PLATE AND SUBSEQUENT USE THEREOF IN REDOX FLOW BATTERY

#12
20240376590
2024-11-14

METHOD FOR DEPOSITING CARBON ON A SUBSTRATE

#13
20240368781
2024-11-07

HYBRID STRUCTURED POROUS TRANSPORT ELECTRODES WITH ELECTROCHEMICALLY ACTIVE TOP-LAYER

#14
20240322281
2024-09-26

METHOD FOR MANUFACTURING BIPOLAR PLATES

#15
20240301572
2024-09-12

BIPOLAR ELECTRODE ASSEMBLY AND METHOD

#16
20240282993
2024-08-22

PRODUCTION SYSTEM FOR AUTOMATICALLY STACKING DIFFERENT COMPONENTS OF AN ELECTROCHEMICAL SYSTEM

#17
20240282977
2024-08-22

FUEL CELL WITH STRUCTURAL ELEMENT INTEGRALLY BONDED TO A GAS DIFFUSION ELEMENT

#18
20240278353
2024-08-22

DEVICE FOR PRODUCING BIPOLAR PLATES

#19
20240266575
2024-08-08

FE-CR REDOX FLOW BATTERY SYSTEMS AND METHODS FOR PREPARATION OF CHROMIUM-CONTAINING ELECTROLYTE THEREFOR

#20
20240266555
2024-08-08

NEGATIVE ELECTRODE SPACER FOR FLOW BATTERY

#21
20240183047
2024-06-06

BIPOLAR PLATE FOR A FUEL CELL STACK OR AN ELECTROLYZER STACK

#22
20240097144
2024-03-21

REDOX FLOW BATTERY AND ELECTROLYTE THEREOF

#23
20240035177
2024-02-01

Carbon coated electrodes

#24
20240030475
2024-01-25

Electrochemical Cell, More Particularly of a Redox Flow Battery, and Corresponding Cell Stack

#25
20230411644
2023-12-21

FUEL CELL COMPRISING A BIPOLAR MODULE CAPABLE OF GENERATING HEAT

#26
20230395837
2023-12-07

Bipolar Plate, Cell Frame, Battery Cell, Cell Stack, and Redox Flow Battery

#27
20230352697
2023-11-02

METHOD AND SYSTEM FOR CONNECTING PLATE-LIKE COMPONENTS OF A BIPOLAR PLATE

#28
20230327146
2023-10-12

SINGLE SHEET BIPOLAR PLATE FOR CELL STACK ASSEMBLY AND METHOD OF MAKING AND USING THE SAME

#29
20230327138
2023-10-12

ENZYMATIC AND DEALLOYED PLATINUM HONEYCOMB SYSTEM

#30
20230253572
2023-08-10

METHOD FOR BIPOLAR PLATE FABRICATION

#31
20230246217
2023-08-03

METHODS FOR SHORT-TERM BATTERY IDLE

#32
20230223553
2023-07-13

Cathode for metal-air current sources metal-air current sources containing the same

#33
20230207852
2023-06-29

BINARY REDOX FLOW BATTERY FOR SIMULTANEOUSLY CHARGING AND DISCHARGING ELECTRICITY

#34
20230197997
2023-06-22

Redox flow battery systems and methods utilizing primary and secondary redox flow battery arrangements

#35
20230163322
2023-05-25

BIPOLAR PLATE ASSEMBLY, USE OF A BIPOLAR PLATE ASSEMBLY, AND ELECTROLYSIS OR FUEL CELL STACK COMPRISING A PLURALITY OF BIPOLAR PLATE ASSEMBLIES

#36
20230140875
2023-05-11

BIPOLAR PLATE FOR A FUEL CELL FOR GENERATION OF ELECTRICAL POWER

#37
20230109892
2023-04-13

Bipolar Plate for Fuel Cell and Method for Preparing Same

#38
20230073599
2023-03-09

Methods and systems for surface disruption of bipolar plate and subsequent use thereof in redox flow battery

#39
20220246950
2022-08-04

LAYER SYSTEM FOR COATING A BIPOLAR PLATE, BIPOLAR PLATE, AND FUEL CELL

#40
20220190410
2022-06-16

STRUCTURAL COMPOSITE LAMINATE STRUCTURE FOR AN AIRCRAFT PART, AIRCRAFT PART MANUFACTURED WITH SUCH A LAMINATE AND AIRCRAFT

#41
20220166033
2022-05-26

BIPOLAR PLATE FOR FUEL CELLS, FUEL CELL STACK HAVING SUCH BIPOLAR PLATES, AND VEHICLE HAVING SUCH A FUEL CELL STACK

#42
20220158214
2022-05-19

Redox flow battery systems and methods utilizing a temporal energy profile

#43
20220158213
2022-05-19

Redox flow battery systems and methods utilizing primary and secondary redox flow battery arrangements

#44
20220158212
2022-05-19

REDOX FLOW BATTERY SYSTEMS AND METHODS UTILIZING A BIPOLAR ELECTRODE STRUCTURE

#45
20220158211
2022-05-19

Fe-Cr redox flow battery systems and methods for preparation of chromium-containing electrolyte therefor

#46
20220158207
2022-05-19

Fe-Cr redox flow battery systems and methods utilizing chromium complexes with nitrogen-containing ligands

#47
20220131162
2022-04-28

BIPOLAR PLATE WITH STIFFENING STRUCTURES

#48
20220109167
2022-04-07

Integrated flow battery stack and heat exchanger

#49
20220093937
2022-03-24

Device and method for producing flow field plates

#50
20220093936
2022-03-24

Bipolar metal-air battery, air electrode manufacturing method, and collector manufacturing method

#51
20220052365
2022-02-17

PH-gradient-enabled microscale bipolar interfaces for direct liquid-fuel/oxidant fuel cells

#52
20210313591
2021-10-07

Redox flow battery cell and redox flow battery

#53
20210135245
2021-05-06

Device and method for producing flow field plates

#54
20210083305
2021-03-18

BATTERY BODY UNIT FOR REDOX FLOW BATTERY, REDOX FLOW BATTERY USING SAME, AND METHOD FOR OPERATING REDOX FLOW BATTERY

#55
20210057764
2021-02-25

Seal configuration for electrochemical cell

#56
20210050606
2021-02-18

Seal configuration for electrochemical cell

#57
20200350601
2020-11-05

Bipolar plate, fuel cell, and motor vehicle

#58
20200274168
2020-08-27

Metal foil for electrochemical element electrode comprising a material, based on ti, c and h

#59
20200152953
2020-05-14

Bipolar plate for an electrochemical device

#60
20200006782
2020-01-02

Gas diffusion layer

#61
20190319292
2019-10-17

High-throughput manufacturing processes for making electrochemical unit cells and electrochemical unit cells produced using the same

#62
20190273264
2019-09-05

Electrode for redox flow batteries, redox flow battery cell, and redox flow battery

#63
20190136761
2019-05-09

Integrated fuel cell and engine combustor assembly

#64
20190067713
2019-02-28

OVERMOLDED UNITIZED ELECTRODE ASSEMBLY

#65
20170294672
2017-10-12

High-throughput manufacturing processes for making electrochemical unit cells and electrochemical unit cells produced using the same

#66
20170294662
2017-10-12

Electrochemical cells having designed flow fields and methods for producing the same

#67
20170271691
2017-09-21

Frame body, cell frame for redox flow battery, and redox flow battery

#68
20170222246
2017-08-03

Metal-halogen flow battery bipolar electrode assembly, system, and method

#69
20170110741
2017-04-20

Cell frame for redox flow battery, cell stack for redox flow battery, and redox flow battery

#70
20170062849
2017-03-02

Stack of electrochemical cells divided up into separate groups comprising a homogenization compartment

#71
20170054161
2017-02-23

Frame body, cell frame for redox flow battery, and redox flow battery

#72
20170012291
2017-01-12

Gas diffusion electrode substrate, and membrane electrode assembly and fuel cell provided therewith

#73
20160268621
2016-09-15

Fuel system using redox flow battery

#74
20160181630
2016-06-23

Method for making a membrane-electrode assembly with peripheral seal, and the membrane-electrode assembly

#75
20160013507
2016-01-14

Fuel system using redox flow battery

#76
20150270555
2015-09-24

Formed plate assembly for PEM fuel cell

#77
20150155565
2015-06-04

BIPOLAR PLATE FOR A FUEL CELL

#78
20150125782
2015-05-07

Fuel cell plate assemblies

#79
20150118550
2015-04-30

Carbon structure electrode for redox flow battery, method of preparing carbon structure electrode for redox flow battery, and carbon structure electrode structure for redox flow battery

#80
20150030957
2015-01-29

Seal configuration for electrochemical cell

#81
20150010840
2015-01-08

Porous inserts for improved coolant distribution in bipolar plate assemblies for fuel cells

#82
20130280415
2013-10-24

Vacuum chamber method to form polymer coatings on porous support

#83
20120171361
2012-07-05

Simultaneous polymerization of two vinyl monomer mixtures to opposite faces of a flat porous substrate

#84
20110262826
2011-10-27

Formed plate assembly for PEM fuel cell

#85
20100323264
2010-12-23

Fuel system using redox flow battery

#86
20100323255
2010-12-23

FUEL CELL SYSTEM SUITABLE FOR COMPLEX FUELS AND A METHOD OF OPERATION OF THE SAME

#87
20070099062
2007-05-03

Fuel cell system suitable for complex fuels and a method of operation of the same

#88
20050112447
2005-05-26

Electrode for the reduction of polysulfide species