Patents-Review.com
ClassID:

213177 ⎘

H01M4/521 - CPC Classification

Classification description:

Electrodes; Electrodes composed of, or comprising, active material; Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of iron for aqueous cells

Recent Application in this class:
#1
20250349864
2025-11-13

Modified Current Collector for Secondary Battery

 #2
20250219155
2025-07-03

ELECTROCHEMICAL CELL INCLUDING AN ADDITIVE AND METHOD OF OPERATING THE ELECTROCHEMICAL CELL

 #3
20250183341
2025-06-05

DECOUPLED ELECTRODE ELECTROCHEMICAL ENERGY STORAGE SYSTEM

 #4
20230402596
2023-12-14

Iron Zinc Battery

 #5
20230395873
2023-12-07

Iron Zinc Battery

 #6
20230387379
2023-11-30

Primary Battery

 #7
20230361331
2023-11-09

METHOD FOR IRON PREFORMATION IN REDOX FLOW BATTERIES

 #8
20230129997
2023-04-27

CONTINUOUS COATED IRON ELECTRODE

 #9
20230126166
2023-04-27

NICKEL IRON BATTERY EMPLOYING A COATED IRON ELECTRODE

 #10
20230118610
2023-04-20

Electrochemical energy storage devices

 #11
20220352498
2022-11-03

High Efficiency Nickel-Iron Battery

 #12
20220223839
2022-07-14

NANOCOMPOSITE OF A NANOPOROUS MATERIAL AND AN ACTIVE MATERIAL AND METHOD OF SYNTHESIZING THEREOF

 #13
20220200040
2022-06-23

Rechargeable lithium ion battery for wide temperature range and high temperatures

 #14
20220131138
2022-04-28

MATERIALS AND METHODS FOR COMPONENTS OF ZINC-ION BATTERIES

 #15
20210351425
2021-11-11

DECOUPLED ELECTRODE ELECTROCHEMICAL ENERGY STORAGE SYSTEM

 #16
20210135270
2021-05-06

Method for iron preformation in redox flow batteries

 #17
20200266425
2020-08-20

Redox and ion-adsorption electrodes and energy storage devices

 #18
20200227779
2020-07-16

Electrochemical energy storage devices

 #19
20190288343
2019-09-19

METHODS AND APPARATUS FOR A BATTERY

 #20
20190237752
2019-08-01

Redox and ion-adsorption electrodes and energy storage devices

 #21
20190221883
2019-07-18

Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices

 #22
20190115589
2019-04-18

Positive electrode and alkaline secondary battery including the same

 #23
20190051892
2019-02-14

Nanocomposite of a nanoporous material and an active material and method of synthesizing thereof

 #24
20180375091
2018-12-27

Process of preparing a chemically pre-formed (CPF) iron negative electrode with oxidizing compounds

 #25
20180366280
2018-12-20

ELECTRODES AND ELECTROLYTES FOR AQUEOUS ELECTROCHEMICAL ENERGY STORAGE SYSTEMS

 #26
20180159175
2018-06-07

Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices

 #27
20180083308
2018-03-22

Electrode assemblies

 #28
20170077571
2017-03-16

Electrolyte for iron-air batteries and iron-air battery

 #29
20170069932
2017-03-09

Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices

 #30
20170040597
2017-02-09

Process of preparing a chemically pre-formed (CPF) iron negative electrode with oxidizing compounds

 #31
20160268622
2016-09-15

Alkali/oxidant battery

 #32
20160190563
2016-06-30

METHOD FOR MANUFACTURING CARBON-COATED NANOMETER Fe3O4 FOR BATTERY

 #33
20150236347
2015-08-20

Method for preparing lithium iron phosphate nanopowder coated with carbon

 #34
20150207145
2015-07-23

HIGH CAPACITY CATHODE MATERIAL WITH IMPROVED RATE CAPABILITY PERFORMANCE

 #35
20150155552
2015-06-04

Iron oxyfluoride electrodes for electrochemical energy storage

 #36
20150060740
2015-03-05

Process of preparing a chemically pre-formed (CPF) iron negative electrode with oxidizing compounds

 #37
20150056505
2015-02-26

MANGANESE AND IRON ELECTRODE CELL

 #38
20140220444
2014-08-07

Method of preparing iron oxide nanoparticles

 #39
20140220434
2014-08-07

NICKEL IRON BATTERY EMPLOYING A COATED IRON ELECTRODE

 #40
20140220433
2014-08-07

Layered iron electrode

 #41
20130260224
2013-10-03

OXYGEN SHUTTLE BATTERY

 #42
20120301751
2012-11-29

Power and hydrogen generator

 #43
20120295162
2012-11-22

Positive electrode material for a lithium-ion accumulator

 #44
20120187918
2012-07-26

Iron-air rechargeable battery

 #45
20120082922
2012-04-05

COMPOSITE ELECTRODE MATERIAL AND METHOD OF PRODUCING THE SAME, NEGATIVE ELECTRODE FOR METAL-AIR BATTERY, AND METAL-AIR BATTERY

 #46
20110289767
2011-12-01

Energy storage device and manufacturing method thereof

 #47
20110065009
2011-03-17

Iron-air accumulator with lithium mediator

 #48
20080261094
2008-10-23

STABILIZED ELECTRODES FOR ELECTROCHEMICAL CELLS

 #49
20060078794
2006-04-13

Nickel-metal hydride storage battery

 #50
15885905
2019-01-29

Redox and ion-adsorbtion electrodes and energy storage devices