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US 2014/0275300 A1Published application
Poly(arylene)-based anion exchange polymer electrolytes
AssigneeLos Alamos National Security, LLC
InventorsYu Seung Kim, Chulsung Bae
Life of this patent
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Abstract
Poly(arylene) electrolytes including copolymers lacking ether groups in the polymer may be used as membranes and binders for electrocatalysts in preparation of anodes for electrochemical cells such as solid alkaline fuel cells.
Claims9
A composition comprising a repeating unit of the formula
- wherein Ar1 and Ar2 are independently selected from divalent aromatic or divalent heteroaromatic groups,
- wherein Ar1 and Ar2 are optionally substituted with one or more monovalent organic groups,
- wherein X is independently selected from —(SO2)— and —(C═O)—,
- wherein Z is a cationic functional group selected from alkylammonium, alkylphosphonium, and alkylguanidinium, and
- wherein n is an integer from 10 to 10,000.
2 more elements
A copolymer having the formula
- wherein Ar1 and Ar2 are 1,4-phenylene,
- wherein X is —(SO2)—
- wherein Z is independently selected from alkylammonium, alkylphosphonium, and guanidinium, and
- wherein n and m are integers from 10 to 10,000.
1 more element
A copolymer composition having the formula
- or having the formula
- or having the formula
- or having the formula
Dependencies are inferred from the claim text.