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Gel polymer electrolytes for batteries

Patent ·
OSTI ID:1164002

Nanostructured gel polymer electrolytes that have both high ionic conductivity and high mechanical strength are disclosed. The electrolytes have at least two domains--one domain contains an ionically-conductive gel polymer and the other domain contains a rigid polymer that provides structure for the electrolyte. The domains are formed by block copolymers. The first block provides a polymer matrix that may or may not be conductive on by itself, but that can soak up a liquid electrolyte, thereby making a gel. An exemplary nanostructured gel polymer electrolyte has an ionic conductivity of at least 1.times.10.sup.-4 S cm.sup.-1 at 25.degree. C.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-05CH11231
Assignee:
Seeo, Inc. (Hayward, CA)
Patent Number(s):
8,889,301
Application Number:
12/812,214
OSTI ID:
1164002
Country of Publication:
United States
Language:
English

References (6)

Physically crosslinked gel electrolytes based on a self-assembling ABA triblock copolymer journal November 2002
Characteristics of gel electrolytes formed by self-aggregating comb-shaped polyethers with end-functionalised side chains journal January 2004
Fabrication of all solid-state lithium polymer secondary batteries using PEG-borate/aluminate ester as plasticizer for polymer electrolyte journal May 2007
Nature and properties of ionomer assemblies. II journal December 2005
Blends of POSS−PEO( n =4) 8 and High Molecular Weight Poly(ethylene oxide) as Solid Polymer Electrolytes for Lithium Batteries journal April 2007
A study of plasticization effects in poly(vinyl chloride) journal March 1997