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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

Works referenced in this record: