ClassID:

213644

H01M8/18 - CPC Classification

Classification description:

Fuel cells; Manufacture thereof Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells

Sub-classes:
Recent Application in this class:
#1
20260149014
2026-05-28

Safety Systems and Methods for Flow Batteries

#2
20260142213
2026-05-21

FLOW BATTERY

#3
20260131323
2026-05-14

SANDWICH-STRUCTURED THIN FILM COMPOSITE ANION EXCHANGE MEMBRANE FOR REDOX FLOW BATTERY APPLICATIONS

#4
20260081194
2026-03-19

Fluid additives for regenerative fuel cells

#5
20260038943
2026-02-05

BATTERY STORAGE CONTAINER AND METHOD OF USE

#6
20260038847
2026-02-05

METHOD FOR RECYCLING AQUEOUS POSOLYTE OF A REDOX FLOW BATTERY

#7
20260018640
2026-01-15

Selectively Annealed Electrochemical Catalyst

#8
20250357513
2025-11-20

METHOD FOR RESTORING PERFORMANCE

#9
20250336985
2025-10-30

METHOD FOR MANUFACTURING BIDIRECTIONAL PROTON CONDUCTIVE FUEL CELL USING MICROWAVE-BASED SINTERING AND BIDIRECTIONAL PROTON CONDUCTIVE FUEL CELL MANUFACTURED THEREBY

#10
20250309306
2025-10-02

Cationic Viologen Derivatives and Use Thereof in Redox Flow Batteries

#11
20250273719
2025-08-28

ION-EXCHANGE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, CELL FOR REDOX FLOW BATTERY, AND REDOX FLOW BATTERY

#12
20250273700
2025-08-28

MULTI-CELL FLOW BATTERY AND FUEL CELL ASSEMBLIES

#13
20250263384
2025-08-21

REDOX-ACTIVE COMPOUNDS AND USES THEREOF

#14
20250249411
2025-08-07

NANOPOROUS SELECTIVE SOL-GEL CERAMIC MEMBRANES

#15
20250226428
2025-07-10

METHOD FOR OPERATING A FUEL CELL SYSTEM

#16
20250192176
2025-06-12

Redox Flow Battery Electrolytes

#17
20250167261
2025-05-22

METHOD OF FIXING A MEMBRANE TO A FRAME, CELL STACK AND USE

#18
20250149600
2025-05-08

MIXED PLATINUM RUTHENIUM OXIDE AND ELECTRODES FOR THE OXYGEN EVOLUTION REACTION

#19
20250070172
2025-02-27

ANTHRAQUINONE-BASED ACTIVE MATERIAL

#20
20250030030
2025-01-23

DEVICE FOR GENERATING ELECTRICITY THROUGH MULTI-TYPE ION CONTROL BASED ON DONNAN EFFECT, AND ELECTRICITY GENERATING DEVICE HAVING LAMINATED STRUCTURE

#21
20250015309
2025-01-09

ELECTROCHEMICAL HYDROGEN-CATALYST POWER SYSTEM

#22
20240356030
2024-10-24

Redox Flow Battery Electrolytes

#23
20240291073
2024-08-29

MICRO-ARCHITECTED FLOW THROUGH ELECTRODES FOR ENERGY STORAGE

#24
20240222744
2024-07-04

Metal-Air Rechargeable Flow Battery

#25
20240186515
2024-06-06

ELECTROLYTE SOLUTION FOR REDOX FLOW BATTERY INCLUDING ORGANIC ACTIVE MATERIAL AND REDOX FLOW BATTERY USING THE SAME

#26
20240174530
2024-05-30

METHOD OF PREPARING VANADIUM ELECTROLYTE SOLUTION AND BATTERY INCLUDING VANADIUM ELECTROLYTE SOLUTION

#27
20240124405
2024-04-18

REDOX-ACTIVE COMPOUNDS AND USES THEREOF

#28
20240088405
2024-03-14

METHOD FOR FORMING A HYDROPHILIC SURFACE ON A GRAPHITE-CONTAINING MATERIAL, AND METHOD FOR MANUFACTURING A BIPOLAR PLATE, AND BIPOLAR PLATE, AND FUEL CELL OR FLOW BATTERY HAVING SUCH A BIPOLAR PLATE

#29
20240026082
2024-01-25

S-LINKED QUINONE POLYMERS, SULFURIZED CARBON MATRICES AND RELATED COMPOSITES, COMPOSITIONS, ELECTRODE MATERIAL, ELECTRODES, ELECTROCHEMICAL CELLS, BATTERIES, METHODS AND SYSTEMS

#30
20240024826
2024-01-25

Nanoporous selective sol-gel ceramic membranes

#31
20230420714
2023-12-28

OPERATING SELF-REFUELING POWER-GENERATING SYSTEMS

#32
20230416932
2023-12-28

ELECTROLYZER

#33
20230411651
2023-12-21

A FLOW CELL BATTERY

#34
20230261232
2023-08-17

MANUFACTURING MIXED FE/V ELECTROLYTES FOR FLOW BATTERIES

#35
20230231170
2023-07-20

METHOD FOR PREPARING VANADIUM ELECTROLYTE FOR ALL-VANADIUM REDOX FLOW BATTERY

#36
20230216091
2023-07-06

ELECTROCHEMICAL CELLS AND METHODS OF USING THEREOF

#37
20230170510
2023-06-01

MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL, ELECTROLYTIC CELL, ELECTROCHEMICAL HYDROGEN COMPRESSOR, REDOX FLOW BATTERY OR ELECTROCHEMICAL SENSOR COMPRISING THE MEMBRANE ELECTRODE ASSEMBLY

#38
20230134800
2023-05-04

VANADIUM CELL SOC BALANCED SYSTEM

#39
20230130406
2023-04-27

Redox Flow Battery Electrolytes

#40
20230122822
2023-04-20

FLOW BATTERIES WITH INSOLUBLE POLYMER SUPPORTED REDOX ACTIVE MATERIALS

#41
20230097730
2023-03-30

Electrolyte Compositions Comprising Distinct Redox-Active Species and Uses Thereof

#42
20230095542
2023-03-30

Novel Phenazine-Based Compounds

#43
20230085103
2023-03-16

Method to improved redox flow battery performance

#44
20220416266
2022-12-29

Integrated electrical and thermal energy storage

#45
20220388658
2022-12-08

Fluid tank for integration into a structure of an unmanned aircraft

#46
20220370999
2022-11-24

SANDWICH-STRUCTURED THIN FILM COMPOSITE ANION EXCHANGE MEMBRANE FOR REDOX FLOW BATTERY APPLICATIONS

#47
20220359887
2022-11-10

Hydrophilic porous carbon electrode and manufacturing method of same

#48
20220332712
2022-10-20

HETEROARYL-PYRIDINIUM COMPOUND AND REDOX FLOW BATTERY COMPRISING THE SAME

#49
20220255165
2022-08-11

Micro-architected flow through electrodes for energy storage

#50
20220153764
2022-05-19

FLOW BATTERY AND COMPONENTS THEREOF

#51
20220153591
2022-05-19

CARBON ELECTRODE MATERIAL FOR MANGANESE/TITANIUM-BASED REDOX FLOW BATTERY

#52
20220134292
2022-05-05

IONICALLY CONDUCTIVE THIN FILM COMPOSITE MEMBRANES FOR ENERGY STORAGE APPLICATIONS

#53
20220109165
2022-04-07

Bipolar plate, cell frame, cell stack, and redox flow battery

#54
20220056186
2022-02-24

SEPARATOR FOR ELECTROCHEMICAL ENERGY ACCUMULATORS AND CONVERTERS

#55
20220052363
2022-02-17

METHODS AND SYSTEM FOR A BATTERY

#56
20220037721
2022-02-03

Thermo-electrochemical convertor with integrated energy storage

#57
20210399326
2021-12-23

Flow battery system and large scale flow battery energy storage device

#58
20210359325
2021-11-18

REDOX FLOW BATTERY

#59
20210313599
2021-10-07

Apparatus and method for high efficiency operation of fuel cell systems

#60
20210313589
2021-10-07

ALTERNATIVE LOW COST ELECTRODES FOR HYBRID FLOW BATTERIES

#61
20210292242
2021-09-23

Carbon foam, assembly and manufacturing method

#62
20210253540
2021-08-19

Redox-active compounds and uses thereof

#63
20210234237
2021-07-29

Separator plate arrangement for an electrochemical system

#64
20210175578
2021-06-10

Membrane electrode assemblies for ion concentration gradient devices

#65
20210159532
2021-05-27

Redox flow battery

#66
20210139516
2021-05-13

Flow battery and components thereof

#67
20210126273
2021-04-29

Redox flow battery and method for operating a redox flow battery

#68
20210111424
2021-04-15

Ion exchange membrane and energy storage device comprising same

#69
20210104769
2021-04-08

Storage module of distributed flow battery

#70
20210083309
2021-03-18

Ion exchange membrane for a redox flow battery

#71
20210036352
2021-02-04

Electrochemical cell and method of using same

#72
20200403248
2020-12-24

Redox flow battery electrode, and redox flow battery

#73
20200373588
2020-11-26

Hydrophilic porous carbon electrode and manufacturing method of same

#74
20200354523
2020-11-12

Polymer and polymer separator comprising same

#75
20200350608
2020-11-05

Flow battery

#76
20200321663
2020-10-08

Lithium slurry battery system

#77
20200303794
2020-09-24

Thermo-electrochemical convertor with integrated energy storage

#78
20200259198
2020-08-13

CELL FRAME AND REDOX FLOW BATTERY

#79
20200171470
2020-06-04

Carbon catalyst, battery electrode and battery

#80
20200161689
2020-05-21

Redox flow battery and method for operating a redox flow battery

#81
20200131657
2020-04-30

OXYGEN ELECTRODE COMPRISING DUAL PLATING CATALYST, WATER ELECTROLYSIS DEVICE AND REGENERATIVE FUEL CELL COMPRISING THE SAME, AND METHOD FOR PREPARING THE OXYGEN ELECTRODE

#82
20200112044
2020-04-09

CELL FRAME AND REDOX FLOW BATTERY

#83
20200088704
2020-03-19

FLOW CELL AND GAS ANALYZING DEVICE HAVING THE SAME

#84
20200070680
2020-03-05

Vehicle-to-grid energy for use with hydrogen generation

#85
20200058977
2020-02-20

Metal air battery including multi module air supply unit

#86
20190393506
2019-12-26

Redox flow battery electrolytes

#87
20190379077
2019-12-12

Fuel cell system

#88
20190379068
2019-12-12

Fuel cell system

#89
20190312295
2019-10-10

Electrode and redox flow battery

#90
20190288320
2019-09-19

FLOW BATTERY SYSTEM AND LARGE SCALE FLOW BATTERY ENERGY STORAGE DEVICE

#91
20190280324
2019-09-12

Electrolyte for flow battery and flow battery system

#92
20190280316
2019-09-12

Method and device for recycling electrolyte of flow battery

#93
20190260054
2019-08-22

Electrode structure and redox flow battery comprising same

#94
20190260043
2019-08-22

Heat rejection system for electrochemical climate control system

#95
20190260033
2019-08-22

Electrode, redox flow battery, and method for producing electrode

#96
20190260014
2019-08-22

Nitrogen battery, fuel synthesizing apparatus, and fuel synthesizing method

#97
20190237794
2019-08-01

Redox flow battery pipe, method for manufacturing redox flow battery pipe, pipe unit, and redox flow battery

#98
20190237791
2019-08-01

Redox flow battery cell, redox flow battery cell stack, and redox flow battery

#99
20190237783
2019-08-01

Redox flow battery

#100
20190237782
2019-08-01

Redox flow battery

#101
20190237776
2019-08-01

Sealing member with bifurcated annular leg portions and battery using the same

#102
20190229387
2019-07-25

Photorechargeable high voltage redox battery enabled by photoelectrodes

#103
20190221875
2019-07-18

REDOX FLOW BATTERY

#104
20190217252
2019-07-18

Nanoporous ceramic membranes, membrane structures, and related methods

#105
20190207234
2019-07-04

Channel plate structure and electrochemical apparatus with the same

#106
20190173116
2019-06-06

MEMBRANELESS DIRECT-TYPE FUEL CELLS

#107
20190173101
2019-06-06

Bipolar plate-electrode assembly using thermoplastic resin and manufacturing method thereof

#108
20190165401
2019-05-30

Fuel cell assembly including varied flow resistance

#109
20190165385
2019-05-30

Unit cell for redox flow battery, for reducing pressure drop caused by electrolyte flow in stack

#110
20190165384
2019-05-30

Redox flow battery, electrical quantity measurement system, and electrical quantity measurement method

#111
20190157699
2019-05-23

Cell frame and redox flow battery

#112
20190152811
2019-05-23

Fluidized bed and hybrid suspension electrodes for energy storage and water desalination systems

#113
20190140301
2019-05-09

Container-type battery

#114
20190131639
2019-05-02

Electrolyte storage tank, flow battery, box-type flow battery system and charge-discharge control method of flow battery

#115
20190103622
2019-04-04

Electrolyte storage unit for redox flow battery and vanadium redox flow battery comprising same

#116
20190081336
2019-03-14

Flow battery that includes active material

#117
20190067726
2019-02-28

Redox flow battery

#118
20190067711
2019-02-28

Redox flow battery

#119
20190048108
2019-02-14

RESIN COMPOSITION, METHOD FOR PRODUCING RESIN COMPOSITION, POWDERY MIXTURE, BIPOLAR PLATE FOR REDOX FLOW BATTERIES AND SEPARATOR FOR FUEL CELLS

#120
20190044174
2019-02-07

System and method for preparing high purity vanadium electrolyte

#121
20190044173
2019-02-07

System and method for producing 3.5-valence high-purity vanadium electrolyte

#122
20190044172
2019-02-07

System and method for producing high-purity and high-activity vanadium electrolyte

#123
20190036145
2019-01-31

FUEL CELL

#124
20190027770
2019-01-24

REDOX FLOW BATTERY, ELECTRODE FOR REDOX FLOW BATTERY, AND ELECTRODE CHARACTERISTIC EVALUATION METHOD

#125
20190020086
2019-01-17

Anaerobic aluminum-water electrochemical cell

#126
20190020085
2019-01-17

Anaerobic aluminum-water electrochemical cell

#127
20180366748
2018-12-20

Flow battery that includes liquid containing mediator

#128
20180366736
2018-12-20

Electrode material, electrode of redox flow battery, and redox flow battery

#129
20180323450
2018-11-08

Apparatus and method for high efficiency operation of fuel cell systems

#130
20180323446
2018-11-08

Interconnector-electrochemical reaction single cell composite body, and electrochemical reaction cell stack

#131
20180316031
2018-11-01

Methods and system for a battery

#132
20180287407
2018-10-04

Superconducting magnet engine

#133
20180269515
2018-09-20

Systems and methods of long-duration energy storage and regeneration of energy-bearing redox pairs

#134
20180269513
2018-09-20

Redox flow battery

#135
20180251592
2018-09-06

Block polymer and polymer electrolyte membrane including same

#136
20180241066
2018-08-23

Self-maintained flow cell device

#137
20180241064
2018-08-23

Self-maintained flow cell device

#138
20180233834
2018-08-16

Leaf spring compression system design

#139
20180209014
2018-07-26

Vanadium recovery method, method for producing electrolytic solution for redox flow batteries, vanadium recovery device, and device for producing electrolytic solution for redox flow batteries

#140
20180199471
2018-07-12

POWER SUPPLY SYSTEM AND METHOD OF MANAGING THE SAME

#141
20180191008
2018-07-05

Mechanical energy storage in flow batteries to enhance energy storage

#142
20180190996
2018-07-05

Method for preparing hierarchically porous doped carbon material and its use

#143
20180151931
2018-05-31

Metal air battery including multi module air supply unit

#144
20180151894
2018-05-31

Redox flow battery

#145
20180123145
2018-05-03

Electrochemical cell comprising channel-type flowable electrode units

#146
20180108960
2018-04-19

Thermo-electrochemical converter with integrated energy storage

#147
20180057471
2018-03-01

Two-electron donating phenothiazines and use thereof

#148
20180048004
2018-02-15

Redox flow battery including permeation preventer for retaining insoluble active material in electrolytic solution container

#149
20180047984
2018-02-15

Carbonaceous structure and method for preparing the same, electrode material and catalyst including the carbonaceous structure, and energy storage device including the electrode material

#150
20180026297
2018-01-25

1,9,10-substituted phenothiazine derivatives with strained radical cations and use thereof

#151
20180006336
2018-01-04

Rechargeable batteries including high-voltage cathode and redox shuttle conferring overcharge protection

#152
20170362171
2017-12-21

Compound comprising aromatic ring, and polyelectrolyte membrane using same

#153
20170352894
2017-12-07

ELECTROLYTE-CIRCULATING BATTERY

#154
20170331138
2017-11-16

Fuel cell system and control method for the same

#155
20170324108
2017-11-09

Battery cell and redox flow battery

#156
20170324103
2017-11-09

INCORPORATED DEVICE AND METHOD FOR CONTROLLING INCORPORATED DEVICE

#157
20170309936
2017-10-26

Accelerated lifetime test device for redox flow battery

#158
20170288247
2017-10-05

Systems for storing, distributing and dispatching energy on demand using and recycling carbon

#159
20170271691
2017-09-21

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

#160
20170251574
2017-08-31

Power supply system and method of managing the same

#161
20170237104
2017-08-17

Battery cell and redox flow battery

#162
20170226054
2017-08-10

Fluorine-based compound for brancher, polymer using same, and polymer electrolyte membrane using same

#163
20170222230
2017-08-03

Manufacturing method of nitrogenous carbon electrode and flow cell provided therewith

#164
20170207472
2017-07-20

System and method for generating power and enhanced oil recovery

#165
20170194660
2017-07-06

Electrolytic solution circulation type battery

#166
20170179516
2017-06-22

Electrolytes for iron flow battery

#167
20170162908
2017-06-08

Electrolytic solution and electrochemical device

#168
20170117569
2017-04-27

Flow battery

#169
20170110741
2017-04-20

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

#170
20170110738
2017-04-20

Vanadium solution, electrolyte comprising same, secondary battery comprising same, and method for preparing same

#171
20170098849
2017-04-06

Redox flow battery system and method for operating redox flow battery system

#172
20170062862
2017-03-02

Multi-electron redox active molecules for energy storage applications

#173
20170062859
2017-03-02

Electrochemical power generation device with re-generable fuel system

#174
20170054173
2017-02-23

Redox flow battery

#175
20170054161
2017-02-23

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

#176
20170033390
2017-02-02

Semi-solid electrodes having high rate capability

#177
20170033383
2017-02-02

Aqueous all-copper redox flow battery

#178
20170012308
2017-01-12

Electrolyte-circulating battery

#179
20160315328
2016-10-27

High surface area flow battery electrodes

#180
20160276649
2016-09-22

Magnetic device for producing electrolyte flow in battery systems

#181
20160190604
2016-06-30

Alternative low cost electrodes for hybrid flow batteries

#182
20160157388
2016-06-02

Power supply system and method of managing the same

#183
20160141699
2016-05-19

Redox flow battery

#184
20160133949
2016-05-12

Energy storage device comprising a polyurethane separator

#185
20160126552
2016-05-05

Storage structure for a solid electrolyte battery

#186
20160064749
2016-03-03

Flame stabilized mixer-eductor-oxidizer for high temperature fuel cells

#187
20160064742
2016-03-03

Solid oxide fuel cells fueled with reducible oxides

#188
20160056491
2016-02-25

Semi-solid electrodes having high rate capability

#189
20160020473
2016-01-21

Apparatus and method for high efficiency operation of fuel cell systems

#190
20150380757
2015-12-31

Redox flow batteries based on supporting solutions containing chloride

#191
20150357667
2015-12-10

NITRIC ACID REGENERATION FUEL CELL SYSTEMS

#192
20150333335
2015-11-19

Flow battery having electrodes with a plurality of different pore sizes and or different layers

#193
20150325842
2015-11-12

Storage structure of an electrical energy storage cell

#194
20150311558
2015-10-29

Electricity generation

#195
20150311541
2015-10-29

Flow battery having a separator membrane comprising an ionomer

#196
20150280267
2015-10-01

Semi-solid electrodes having high rate capability

#197
20150228997
2015-08-13

Electrolyte for redox flow battery and redox flow battery

#198
20150228950
2015-08-13

Organic-inorganic composite anion exchange membrane containing polyvinylidene fluoride polymer for non-aqueous redox flow battery and method for preparing the same

#199
20150147666
2015-05-28

Fluidic architecture for metal-halogen flow battery

#200
20150125729
2015-05-07

Ion exchange membrane, method of preparing the same, and redox flow battery comprising the same

#201
20150096670
2015-04-09

Fuel cell

#202
20150020531
2015-01-22

Gas turbine-heated high-temperature battery

#203
20150010834
2015-01-08

Stack for an electrical energy accumulator

#204
20150004445
2015-01-01

Regenerative fuel cells

#205
20140377687
2014-12-25

Redox flow secondary battery and electrolyte membrane for redox flow secondary battery

#206
20140308547
2014-10-16

Fluidic architecture for metal-halogen flow battery

#207
20140272639
2014-09-18

Processes and systems for storing, distributing and dispatching energy on demand using and recycling carbon

#208
20140255804
2014-09-11

CATHOLYTE REGENERATION

#209
20140255746
2014-09-11

High surface area flow battery electrodes

#210
20140154727
2014-06-05

Geobacter strains that use alternate organic compounds, methods of making, and methods of use thereof

#211
20140125288
2014-05-08

Energy store and method of charging or discharging an energy store

#212
20140093798
2014-04-03

Flame stabilized mixer-eductor-oxidizer for high temperature fuel cells

#213
20140080020
2014-03-20

Solid oxide fuel cell

#214
20140079976
2014-03-20

Iron-sulfide redox flow batteries

#215
20140004403
2014-01-02

Multiple-membrane multiple-electrolyte redox flow battery design

#216
20140004402
2014-01-02

Double-membrane triple-electrolyte redox flow battery design

#217
20130330644
2013-12-12

Regenerative fuel cells

#218
20130316199
2013-11-28

ELECTROCHEMICAL BALANCE IN A VANADIUM FLOW BATTERY

#219
20130307227
2013-11-21

Sealing material for thin plate member

#220
20130266829
2013-10-10

Fluidic architecture for metal-halogen flow battery

#221
20130260187
2013-10-03

REPLENISHABLE DOWNHOLE BATTERY

#222
20130224610
2013-08-29

Electrolyte replenishing system and method

#223
20130118735
2013-05-16

System and method for generating power and enhanced oil recovery

#224
20130045431
2013-02-21

System and method for the recovery of fuel cell catalyst performance

#225
20130045400
2013-02-21

Redox flow battery

#226
20120258345
2012-10-11

Flow battery having electrodes with a plurality of different pore sizes and or different layers

#227
20120244406
2012-09-27

Iron-sulfide redox flow batteries

#228
20120171541
2012-07-05

Redox flow battery

#229
20120129039
2012-05-24

Electrical energy storage device

#230
20120107661
2012-05-03

Redox flow battery

#231
20120107660
2012-05-03

Redox Flow Batteries Based on Supporting Solutions Comprising a Mixture of Acids

#232
20120077079
2012-03-29

Redox flow batteries based on supporting solutions containing chloride

#233
20120045680
2012-02-23

Redox flow battery

#234
20110236773
2011-09-29

Fuel cell catalyst regeneration

#235
20110189567
2011-08-04

High Temperature Fuel Cell System and Method of Operating the Same

#236
20110151544
2011-06-23

strains that use alternate organic compounds, methods of making, and methods of use thereof

#237
20110136023
2011-06-09

INTEGRATED HYDRIDE AIR ACCUMULATOR SYSTEM AND METHOD FOR MANUFACTURING THE SAME

#238
20110086250
2011-04-14

METHOD AND APPARATUS FOR STORING ELECTRICAL POWER BY EVAPORATING WATER

#239
20110076542
2011-03-31

High-performance rechargeable batteries with nanoparticle active materials, photochemically regenerable active materials, and fast solid-state ion conductors

#240
20100316935
2010-12-16

ELECTROCHEMICAL CELLS CONNECTED IN FLUID FLOW SERIES

#241
20100227203
2010-09-09

Device Comprising a New Cathode and Method for Generating Electrical Energy with Use Thereof

#242
20100203417
2010-08-12

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