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1. WO2022072715 - METHODS OF PASSIVATION TO CONTROL OXYGEN CONTENT AND REACTIVITY OF SILICON-CARBON COMPOSITE MATERIALS

Publication Number WO/2022/072715
Publication Date 07.04.2022
International Application No. PCT/US2021/052995
International Filing Date 30.09.2021
IPC
C01B 32/00 2017.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
C01B 33/035 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
33Silicon; Compounds thereof
02Silicon
021Preparation
027by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
035by decomposition or reduction of gaseous or vaporised silicon compounds in the presence of heated filaments of silicon, carbon or a refractory metal, e.g. tantalum or tungsten, or in the presence of heated silicon rods on which the formed silicon is deposited, a silicon rod being obtained, e.g. Siemens process
H01M 4/134 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
134Electrodes based on metals, Si or alloys
H01M 4/1395 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139Processes of manufacture
1395of electrodes based on metals, Si or alloys
H01M 4/38 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
38of elements or alloys
H01M 4/62 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
CPC
B82Y 40/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
40Manufacture or treatment of nanostructures
C01B 32/00
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
C01B 32/05
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
05Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
C01B 33/029
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
33Silicon; Compounds thereof
02Silicon
021Preparation
027by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
029by decomposition of monosilane
C01B 33/035
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
33Silicon; Compounds thereof
02Silicon
021Preparation
027by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
035by decomposition or reduction of gaseous or vaporised silicon compounds in the presence of heated filaments of silicon, carbon or a refractory metal, e.g. tantalum or tungsten, or in the presence of heated silicon rods on which the formed silicon is deposited, a silicon rod being obtained, e.g. Siemens process
C01P 2004/60
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
60Particles characterised by their size
Applicants
  • GROUP14 TECHNOLOGIES, INC. [US]/[US]
Inventors
  • COSTANTINO, Henry R.
  • SAKSHAUG, Avery J.
  • DHANABALAN, Abirami
  • TIMMONS, Christopher
  • FEAVER, Aaron M.
Agents
  • HARWOOD, Eric, A.
  • OBEIDAT, Baha, A.
  • KUMABE, Blake, K.
  • SOLTANI, Bobby, B.
  • ZENTZ, Bradley, J.
  • SARGEANT, Brooke
  • QUIST, Brooke, W.
  • EIDT, Chandra, E.
  • O'BRIEN, Daniel
  • CONLEE, David, C.
  • CARLSON, David, V.
  • STARK, Duncan
  • TARLETON, E., Russell
  • SUN, Eileen, S.
  • HAN, Hai
  • TALBERT, Hayley, J.
  • KHANNA, Hemant
  • PURUSHE, Janaki
  • BARRETT, Jared, M.
  • DANLEY, Jeffrey, E.
  • SAKOI, Jeffrey, M.
  • SEO, Jeong, Hee
  • BAUNACH, Jeremiah, J.
  • GRITTON, Jessica, S.
  • ZHANG, Jianping
  • MORGAN, John, A.
  • WAKELEY, John, J.
  • COE, Justin, E.
  • HENCKEL, Karen, M.
  • HEFTER, Karl, A.
  • HERMANNS, Karl, R.
  • TOYAMA, Kazuya
  • MORGAN, Kevan, L.
  • COSTANZA, Kevin, S.
  • COOPER, Michael, P.
  • BENDEMIRE, Paul, D.
  • LIN, Qing
  • WEBB, Samuel, E.
  • CHEEMA, Sangeeta, K.
  • LIU, Shi
  • LEEK, Shoko, I.
  • ROSENMAN, Stephen, J.
  • LAWRENZ, Steven, D.
  • ABEDI, Syed
  • SHEWMAKE, Thomas, A.
  • BOLLER, Timothy, L.
  • LIGON, Toby, J.
  • LI, Yiheng
  • SAKOI, Zachary, M.
Priority Data
63/085,78830.09.2020US
63/129,36322.12.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHODS OF PASSIVATION TO CONTROL OXYGEN CONTENT AND REACTIVITY OF SILICON-CARBON COMPOSITE MATERIALS
(FR) MÉTHODES DE PASSIVATION POUR CONTRÔLER LA TENEUR EN OXYGÈNE ET LA RÉACTIVITÉ DE MATÉRIAUX COMPOSITES SILICIUM-CARBONE
Abstract
(EN) Passivated silicon carbon composite materials and related processes are disclosed that overcome the challenges for providing amorphous nano sized silicon entrained within porous carbon. Compared to other, inferior materials and processes described in the prior art, the materials and processes disclosed herein find superior utility in various applications, including energy storage devices such as lithium ion batteries.
(FR) L'invention concerne des matériaux composites silicium-carbone passivés et des procédés associés qui surmontent les difficultés liées à la fourniture de silicium nanométrique amorphe entraîné dans du carbone poreux. Par comparaison avec d'autres procédés et matériaux de qualité inférieure décrits dans l'état actuel de la technique, les matériaux et les procédés divulgués ici trouvent une utilité supérieure dans diverses applications, y compris dans des dispositifs de stockage d'énergie tels que des batteries au lithium-ion.
Latest bibliographic data on file with the International Bureau