ClassID:

84957

C01B33/023 - CPC Classification

Classification description:

Silicon; Compounds thereof; Silicon; Preparation by reduction of silica or free silica-containing material

Sub-classes:
Recent Application in this class:
#1
20260145952
2026-05-28

ANODE ACTIVE MATERIAL, SOLID-STATE BATTERY, AND METHOD FOR MANUFACTURING ANODE ACTIVE MATERIAL

#2
20260125271
2026-05-07

METHODS AND APPARATUS OF PRODUCING SILICON NANOPARTICLES

#3
20260115679
2026-04-30

METHOD AND SYSTEM FOR PRODUCING SILICON

#4
20260054998
2026-02-26

POROUS MICRON-SIZED SILICON BALL MATERIAL AND PREPARATION METHOD THEREFOR AND USE THEREOF

#5
20250376380
2025-12-11

MULTI-STAGED PRODUCTION OF SILICON NANOPARTICLES

#6
20250118735
2025-04-10

NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE INCLUDING SAME, SECONDARY BATTERY INCLUDING SAME, AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE ACTIVE MATERIAL

#7
20240246827
2024-07-25

Porous silicon material and method of manufacture

#8
20240239668
2024-07-18

PRODUCTION OF ELECTROCHEMICALLY ACTIVE SILICON FROM CLAY MINERALS

#9
20240076192
2024-03-07

METHODS AND APPARATUS OF PRODUCING SILICON NANOPARTICLES

#10
20230202847
2023-06-29

SUPERHARD CONSTRUCTIONS AND METHODS OF MAKING SAME

#11
20230174382
2023-06-08

Method, Apparatus, and System for Producing Silicon-Containing Product by Utilizing Silicon Mud Byproduct of Cutting Silicon Material with Diamond Wire

#12
20230124479
2023-04-20

METHOD OF MANUFACTURING AMORPHOUS SILICON COMPOSITE AND APPARATUS FOR MANUFACTURING AMORPHOUS SILICON COMPOSITE

#13
20230108286
2023-04-06

MULTI-STAGE MAGNESIOTHERMIC REDUCTION FOR PRODUCTION OF SILICON OXIDES WITH REDUCED SILICON GRAIN SIZE

#14
20230002236
2023-01-05

SYSTEM AND METHOD FOR MANUFACTURING HIGH PURITY SILICON

#15
20220363550
2022-11-17

SILICA TO HIGH PURITY SILICON PRODUCTION PROCESS

#16
20220340429
2022-10-27

Method to control the etching rate of materials

#17
20220332588
2022-10-20

Method for preparing amorphous silicon powder for anode material of lithium ion battery

#18
20220073361
2022-03-10

COUPLED PRODUCTION OF HIGH PURITY SILICON AND ALUMINA

#19
20210351432
2021-11-11

Negative electrode active material, negative electrode including the same and lithium secondary battery including the same

#20
20210328214
2021-10-21

Sulfur-doped silicon negative electrode material, method for producing same, lithium secondary battery negative electrode including negative electrode material, and lithium secondary battery comprising negative electrode

#21
20210313557
2021-10-07

NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD OF PREPARING THE SAME

#22
20210167360
2021-06-03

Processes to fabricate porous silicon and its use as feedstock for secondary battery electrodes

#23
20210107799
2021-04-15

System and method for producing silicon-containing product by utilizing silicon mud byproduct of cutting silicon material with diamond wire

#24
20210024358
2021-01-28

Yolk-shell structured particles, method for producing same, and lithium secondary battery comprising same

#25
20200308007
2020-10-01

System and method for manufacturing high purity silicon

#26
20200095131
2020-03-26

Process for the production of commercial grade silicon

#27
20200095130
2020-03-26

AMORPHOUS SILICA, DEVICE FOR PRODUCING AMORPHOUS SILICA, METHOD FOR PRODUCING AMORPHOUS SILICA, SILICON PRODUCED FROM AMORPHOUS SILICA, AND METHOD FOR PRODUCING SILICON

#28
20190326593
2019-10-24

Glass bottles based silicon electrode materials

#29
20190233294
2019-08-01

Silicon-containing structure, method of preparing the same, carbon composite using the same, and electrode, lithium battery, and device each including the same

#30
20190031516
2019-01-31

METHOD FOR PRODUCING SILICON

#31
20180342757
2018-11-29

Negative electrode active material, negative electrode including the same and lithium secondary battery including the same

#32
20180261836
2018-09-13

ELECTRODE MATERIAL AND METHOD FOR MANUFACTURING THE SAME

#33
20180237306
2018-08-23

Silica to high purity silicon production process

#34
20180237305
2018-08-23

Safe and low temperature thermite reaction systems and method to form porous silicon

#35
20180201513
2018-07-19

REDUCTION OF METAL/SEMI-METAL OXIDES

#36
20180198116
2018-07-12

PROCESSES TO FABRICATE POROUS SILICON AND ITS USE AS FEEDSTOCK FOR SECONDARY BATTERY ELECTRODES

#37
20180151868
2018-05-31

Negative electrode active material for lithium secondary battery and method of preparing the same

#38
20180069238
2018-03-08

Porous silicon based negative electrode active material, method for manufacturing the same, and rechargeable lithium battery including the same

#39
20170334729
2017-11-23

Processes for producing silicon

#40
20170298185
2017-10-19

Microporous polyimide sponge and method for producing the same

#41
20170291821
2017-10-12

Method of preparing silicon from sand

#42
20170229589
2017-08-10

Tunneling diode using graphene-silicon quantum dot hybrid structure and method of manufacturing the same

#43
20170216833
2017-08-03

Sulfonated aminomethylated chelate resins

#44
20170137295
2017-05-18

Method for manufacturing silicon using silica and silicon manufactured using the same

#45
20170101319
2017-04-13

RECOVERY OF SILICON VALUE FROM KERF SILICON WASTE

#46
20170022635
2017-01-26

Method of synthesizing silica nanofibers using sound waves

#47
20160200584
2016-07-14

Method and device for treating the free surface of a material

#48
20160028085
2016-01-28

Anode active material for lithium secondary battery and method of preparing the same

#49
20150337462
2015-11-26

Method of synthesizing silica nanofibers using sound waves

#50
20150224468
2015-08-13

Method of synthesizing silica nanofibers using sound waves

#51
20150104705
2015-04-16

Method of forming silicon

#52
20140377653
2014-12-25

POROUS SILICON BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

#53
20140328741
2014-11-06

Silicon photonic fiber and method of manufacture

#54
20140235884
2014-08-21

METHOD OF PREPARING SILICON NANOCRYSTALS

#55
20140102356
2014-04-17

Deposition of High Purity Silicon Via High Surface Area Gas-Solid or Gas-Liquid Interfaces and Recovery Via Liquid Phase

#56
20140079930
2014-03-20

Mesoporous silicon

#57
20140041414
2014-02-13

Remote cool down of a purified directionally solidified material from an open bottom cold crucible induction furnace

#58
20130319391
2013-12-05

RECOVERY OF SILICON VALUE FROM KERF SILICON WASTE

#59
20130228469
2013-09-05

Production method for silicon nanoparticles

#60
20130189575
2013-07-25

Porous silicon based anode material formed using metal reduction

#61
20130149549
2013-06-13

METALLIC STRUCTURES BY METALLOTHERMAL REDUCTION

#62
20130001816
2013-01-03

METHOD FOR RECOVERING SILICON AND METHOD FOR PRODUCING SILICON

#63
20120230904
2012-09-13

PRODUCTION OF HIGH PURITY SILICON FROM AMORPHOUS SILICA

#64
20120097653
2012-04-26

Laser Refining Apparatus and Laser Refining Method

#65
20120041083
2012-02-16

SILICON OR ELEMENTARY METALS AS ENERGY CARRIERS

#66
20120022172
2012-01-26

METHOD FOR PROVIDING AN ENERGY CARRIER

#67
20110268643
2011-11-03

Production of Silicon

#68
20110248430
2011-10-13

Remote cool down of a purified directionally solidified material from an open bottom cold crucible induction furnace

#69
20110206592
2011-08-25

Low cost routes to high purity silicon and derivatives thereof

#70
20110206591
2011-08-25

Plasma processes for producing silanes and derivatives thereof

#71
20110176984
2011-07-21

Method for making silicon for solar cells and other applications

#72
20110104412
2011-05-05

Method for depositing silicon nanocrystals in hollow fibers

#73
20110085960
2011-04-14

Method of manufacturing high-surface-area silicon

#74
20110052475
2011-03-03

Production of high purity silicon from amorphous silica

#75
20100284887
2010-11-11

METHOD AND DEVICE FOR PRODUCING SILICON

#76
20100092141
2010-04-15

Silicon photonic fiber and method of manufacture

#77
20100086466
2010-04-08

Deposition of high-purity silicon via high-surface area gas-solid interfaces and recovery via liquid phase

#78
20100059118
2010-03-11

Method for producing silicon

#79
20100051858
2010-03-04

NON-AQUEOUS ELECTROLYTE SECONDARY CELL NEGATIVE ELECTRODE MATERIAL AND METALLIC SILICON POWDER THEREFOR

#80
20100015028
2010-01-21

PURIFICATION METHOD

#81
20090092899
2009-04-09

Nano-sized silicon

#82
20090014688
2009-01-15

Semiconductor Nanoparticles and Manufacturing Method of The Same

#83
20090010833
2009-01-08

PROCESS FOR PRODUCING ULTRA-FINE POWDER OF CRYSTALLINE SILICON

#84
20080314445
2008-12-25

METHOD FOR THE PREPARATION OF HIGH PURITY SILICON

#85
20070264184
2007-11-15

Cascaded power plant process and method for providing reversibly usable hydrogen carriers in such a power plant process

#86
20070217988
2007-09-20

Method for making silicon for solar cells and other applications

#87
20070077680
2007-04-05

Preparation of self-assembled silicon nanotubes by hydrothermal method

#88
20060051670
2006-03-09

Non-aqueous electrolyte secondary cell negative electrode material and metallic silicon power therefor