Perfluoropolyether additives for electrochemical applications

Details Perfluoropolyether additives for electrochemical applications Perfluoropolyether additives for electrochemical applications

2005-05-24

2005-05-24

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S199000, C568S579000, C525S326200

Reexamination Certificate

active

06896996

ABSTRACT:
Electrolytic compositions comprising a perfluoropolyether additive of formula (I):wherein:d, e, f are integers; a, b, c can be zero or integers; being a+b+c+d+e+f such that the number average molecular weight ranges from 500 to 5×105;T are end groups —CF2X (X═F,CF3, Cl), —C3F7, —CF(CF3)COO−(1
)Mn+, —CF2COO−(1
) Mn+, —CF2C(O(1
)Mn+)2CF3;Mn−is a cation having valence n=1-4.

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