Title: Silicon-based active materials for lithium ion batteries and synthesis with solution processing

Abstract

Silicon based anode active materials are described for use in lithium ion batteries. The silicon based materials are generally composites of nanoscale elemental silicon with stabilizing components that can comprise, for example, silicon oxide-carbon matrix material, inert metal coatings or combinations thereof. High surface area morphology can further contribute to the material stability when cycled in a lithium based battery. In general, the material synthesis involves a significant solution based processing step that can be designed to yield desired material properties as well as providing convenient and scalable processing.

Inventors:

Han, Yongbong; Masarapu, Charan; Deng, Haixia; Anguchamy, Yogesh Kumar; Venkatachalam, Subramanian; Lopez, Herman A.

Issue Date:

2018-07-10

Research Org.:

Zenlabs Energy, Inc., Fremont, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1462199

Patent Number(s):

10020491

Application Number:

13/864,212

Assignee:

Zenlabs Energy, Inc. (Fremont, CA)

Patent Classifications (CPCs):

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

Show more

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2235/428 - Silicon
C04B35/14 - based on silica

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B33/18 - Preparation of finely divided silica neither in sol nor in gel form

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E60/10 - Energy storage

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2235/5288 - Carbon nanotubes

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2235/80 - Phases present in the sintered or melt-cast ceramic products other than the main phase

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M4/625 - {Carbon or graphite}

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B35/532 - containing a carbonisable binder

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B33/113 - Silicon oxides

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2235/425 - Graphite

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M4/386 - {Silicon or alloys based on silicon}
H01M4/362 - {Composites}

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B35/806 - {The matrix of the ceramic products consisting of non-oxides only}
C04B35/571 - obtained from {Si-containing} polymer precursors {or organosilicon monomers}
C04B2235/5445 - submicron sized, i.e. from 0,1 to 1 micron
C04B2235/441 - Alkoxides, e.g. methoxide, tert-butoxide

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M4/483 - {for non-aqueous cells

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2235/5409 - expressed by specific surface values

Show less

DOE Contract Number:  

AR0000034

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 Apr 16

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 25 ENERGY STORAGE