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Title: Coated particles for lithium battery cathodes

Particles of cathodic materials are coated with polymer to prevent direct contact between the particles and the surrounding electrolyte. The polymers are held in place either by a) growing the polymers from initiators covalently bound to the particle, b) attachment of the already-formed polymers by covalently linking to functional groups attached to the particle, or c) electrostatic interactions resulting from incorporation of cationic or anionic groups in the polymer chain. Carbon or ceramic coatings may first be formed on the surfaces of the particles before the particles are coated with polymer. The polymer coating is both electronically and ionically conductive.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
1371751
Assignee:
Seeo, Inc. DOEEE
Patent Number(s):
9,711,797
Application Number:
13/889,335
Contract Number:
EE0005449
Resource Relation:
Patent File Date: 2013 May 07
Research Org:
Seeo, Inc. Hayward, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Other works cited in this record:

Polymer composition for encapsulation of electrode particles
patent, January 2008

Positive electrode for lithium-sulfur battery, method of producing same, and lithium-sulfur battery
patent-application, February 2004

Electrodes With Solid Polymer Electrolytes
patent-application, January 2011

Inorganic Binders For Battery Electrodes And Aqueous Processing Thereof
patent-application, May 2011

Electrodes With Solid Polymer Electrolytes And Reduced Porosity
patent-application, November 2011

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