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Title: Solid polymeric electrolytes for lithium batteries

Abstract

Novel conductive polyanionic polymers and methods for their preparion are provided. The polyanionic polymers comprise repeating units of weakly-coordinating anionic groups chemically linked to polymer chains. The polymer chains in turn comprise repeating spacer groups. Spacer groups can be chosen to be of length and structure to impart desired electrochemical and physical properties to the polymers. Preferred embodiments are prepared from precursor polymers comprising the Lewis acid borate tri-coordinated to a selected ligand and repeating spacer groups to form repeating polymer chain units. These precursor polymers are reacted with a chosen Lewis base to form a polyanionic polymer comprising weakly coordinating anionic groups spaced at chosen intervals along the polymer chain. The polyanionic polymers exhibit high conductivity and physical properties which make them suitable as solid polymeric electrolytes in lithium batteries, especially secondary lithium batteries.

Inventors:
; ;
Issue Date:
Research Org.:
Arizona Board of Regents, Tempe, AZ (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175670
Patent Number(s):
7012124
Application Number:
10/311,644
Assignee:
Arizona Board of Regents, acting for and on behalf of Arizona State University (Tempe, AZ)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
FG03-93ER14378
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Angell, Charles A., Xu, Wu, and Sun, Xiaoguang. Solid polymeric electrolytes for lithium batteries. United States: N. p., 2006. Web.
Angell, Charles A., Xu, Wu, & Sun, Xiaoguang. Solid polymeric electrolytes for lithium batteries. United States.
Angell, Charles A., Xu, Wu, and Sun, Xiaoguang. Tue . "Solid polymeric electrolytes for lithium batteries". United States. https://www.osti.gov/servlets/purl/1175670.
@article{osti_1175670,
title = {Solid polymeric electrolytes for lithium batteries},
author = {Angell, Charles A. and Xu, Wu and Sun, Xiaoguang},
abstractNote = {Novel conductive polyanionic polymers and methods for their preparion are provided. The polyanionic polymers comprise repeating units of weakly-coordinating anionic groups chemically linked to polymer chains. The polymer chains in turn comprise repeating spacer groups. Spacer groups can be chosen to be of length and structure to impart desired electrochemical and physical properties to the polymers. Preferred embodiments are prepared from precursor polymers comprising the Lewis acid borate tri-coordinated to a selected ligand and repeating spacer groups to form repeating polymer chain units. These precursor polymers are reacted with a chosen Lewis base to form a polyanionic polymer comprising weakly coordinating anionic groups spaced at chosen intervals along the polymer chain. The polyanionic polymers exhibit high conductivity and physical properties which make them suitable as solid polymeric electrolytes in lithium batteries, especially secondary lithium batteries.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {3}
}

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Works referenced in this record:

Rubbery solid electrolytes with dominant cationic transport and high ambient conductivity
journal, March 1993


Variations on the salt-polymer electrolyte theme for flexible solid electrolytes
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Molten salt type polymer electrolytes
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Molecular and anionic polymer and oligomer systems with microdecoupled conductivities
journal, January 2000